int (*open) (struct inode *, struct file *);
int (*flush) (struct file *);
int (*release) (struct inode *, struct file *);
- int (*fsync) (struct file *, struct dentry *, int datasync);
+ int (*fsync) (struct file *, int datasync);
int (*aio_fsync) (struct kiocb *, int datasync);
int (*fasync) (int, struct file *, int);
int (*lock) (struct file *, int, struct file_lock *);
started might not be in the page cache at the end of the
walk).
- truncate: called by the VFS to change the size of a file. The
+ truncate: Deprecated. This will not be called if ->setsize is defined.
+ Called by the VFS to change the size of a file. The
i_size field of the inode is set to the desired size by the
VFS before this method is called. This method is called by
the truncate(2) system call and related functionality.
+ Note: ->truncate and vmtruncate are deprecated. Do not add new
+ instances/calls of these. Filesystems should be converted to do their
+ truncate sequence via ->setattr().
+
permission: called by the VFS to check for access rights on a POSIX-like
filesystem.
int (*open) (struct inode *, struct file *);
int (*flush) (struct file *);
int (*release) (struct inode *, struct file *);
- int (*fsync) (struct file *, struct dentry *, int datasync);
+ int (*fsync) (struct file *, int datasync);
int (*aio_fsync) (struct kiocb *, int datasync);
int (*fasync) (int, struct file *, int);
int (*lock) (struct file *, int, struct file_lock *);
* nohrst, nosrst, norst: suppress hard, soft
and both resets.
+ * dump_id: dump IDENTIFY data.
+
If there are multiple matching configurations changing
the same attribute, the last one is used.
#define L1_CACHE_SHIFT (CONFIG_FRV_L1_CACHE_SHIFT)
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
-#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES
-
#define __cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
#define ____cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
* the slab must be aligned such that load- and store-double instructions don't
* fault if used
*/
-#define ARCH_KMALLOC_MINALIGN 8
-#define ARCH_SLAB_MINALIGN 8
+#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES
+#define ARCH_SLAB_MINALIGN L1_CACHE_BYTES
/*****************************************************************************/
/*
return ret;
}
-static int spufs_mfc_fsync(struct file *file, struct dentry *dentry,
- int datasync)
+static int spufs_mfc_fsync(struct file *file, int datasync)
{
return spufs_mfc_flush(file, NULL);
}
.llseek = dcache_dir_lseek,
.read = generic_read_dir,
.readdir = dcache_readdir,
- .fsync = simple_sync_file,
+ .fsync = noop_fsync,
};
EXPORT_SYMBOL_GPL(spufs_context_fops);
This option adds support for SATA Port Multipliers
(the SATA version of an ethernet hub, or SAS expander).
+comment "Controllers with non-SFF native interface"
+
config SATA_AHCI
tristate "AHCI SATA support"
depends on PCI
If unsure, say N.
-config SATA_SIL24
- tristate "Silicon Image 3124/3132 SATA support"
- depends on PCI
+config SATA_FSL
+ tristate "Freescale 3.0Gbps SATA support"
+ depends on FSL_SOC
help
- This option enables support for Silicon Image 3124/3132 Serial ATA.
+ This option enables support for Freescale 3.0Gbps SATA controller.
+ It can be found on MPC837x and MPC8315.
If unsure, say N.
help
This option enables support for Initio 162x Serial ATA.
-config SATA_FSL
- tristate "Freescale 3.0Gbps SATA support"
- depends on FSL_SOC
+config SATA_SIL24
+ tristate "Silicon Image 3124/3132 SATA support"
+ depends on PCI
help
- This option enables support for Freescale 3.0Gbps SATA controller.
- It can be found on MPC837x and MPC8315.
+ This option enables support for Silicon Image 3124/3132 Serial ATA.
If unsure, say N.
if ATA_SFF
-config SATA_SVW
- tristate "ServerWorks Frodo / Apple K2 SATA support"
+comment "SFF controllers with custom DMA interface"
+
+config PDC_ADMA
+ tristate "Pacific Digital ADMA support"
depends on PCI
help
- This option enables support for Broadcom/Serverworks/Apple K2
- SATA support.
+ This option enables support for Pacific Digital ADMA controllers
+
+ If unsure, say N.
+
+config PATA_MPC52xx
+ tristate "Freescale MPC52xx SoC internal IDE"
+ depends on PPC_MPC52xx && PPC_BESTCOMM
+ select PPC_BESTCOMM_ATA
+ help
+ This option enables support for integrated IDE controller
+ of the Freescale MPC52xx SoC.
+
+ If unsure, say N.
+
+config PATA_OCTEON_CF
+ tristate "OCTEON Boot Bus Compact Flash support"
+ depends on CPU_CAVIUM_OCTEON
+ help
+ This option enables a polled compact flash driver for use with
+ compact flash cards attached to the OCTEON boot bus.
+
+ If unsure, say N.
+
+config SATA_QSTOR
+ tristate "Pacific Digital SATA QStor support"
+ depends on PCI
+ help
+ This option enables support for Pacific Digital Serial ATA QStor.
+
+ If unsure, say N.
+
+config SATA_SX4
+ tristate "Promise SATA SX4 support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for Promise Serial ATA SX4.
If unsure, say N.
+config ATA_BMDMA
+ bool "ATA BMDMA support"
+ default y
+ help
+ This option adds support for SFF ATA controllers with BMDMA
+ capability. BMDMA stands for bus-master DMA and the
+ de-facto DMA interface for SFF controllers.
+
+ If unuser, say Y.
+
+if ATA_BMDMA
+
+comment "SATA SFF controllers with BMDMA"
+
config ATA_PIIX
tristate "Intel ESB, ICH, PIIX3, PIIX4 PATA/SATA support"
depends on PCI
If unsure, say N.
-config PDC_ADMA
- tristate "Pacific Digital ADMA support"
- depends on PCI
- help
- This option enables support for Pacific Digital ADMA controllers
-
- If unsure, say N.
-
-config SATA_QSTOR
- tristate "Pacific Digital SATA QStor support"
- depends on PCI
- help
- This option enables support for Pacific Digital Serial ATA QStor.
-
- If unsure, say N.
-
config SATA_PROMISE
tristate "Promise SATA TX2/TX4 support"
depends on PCI
If unsure, say N.
-config SATA_SX4
- tristate "Promise SATA SX4 support (Experimental)"
- depends on PCI && EXPERIMENTAL
- help
- This option enables support for Promise Serial ATA SX4.
-
- If unsure, say N.
-
config SATA_SIL
tristate "Silicon Image SATA support"
depends on PCI
enable the PATA_SIS driver in the config.
If unsure, say N.
+config SATA_SVW
+ tristate "ServerWorks Frodo / Apple K2 SATA support"
+ depends on PCI
+ help
+ This option enables support for Broadcom/Serverworks/Apple K2
+ SATA support.
+
+ If unsure, say N.
+
config SATA_ULI
tristate "ULi Electronics SATA support"
depends on PCI
If unsure, say N.
-config PATA_ACPI
- tristate "ACPI firmware driver for PATA"
- depends on ATA_ACPI
- help
- This option enables an ACPI method driver which drives
- motherboard PATA controller interfaces through the ACPI
- firmware in the BIOS. This driver can sometimes handle
- otherwise unsupported hardware.
+comment "PATA SFF controllers with BMDMA"
config PATA_ALI
tristate "ALi PATA support"
If unsure, say N.
-config PATA_ATP867X
- tristate "ARTOP/Acard ATP867X PATA support"
+config PATA_ATIIXP
+ tristate "ATI PATA support"
depends on PCI
help
- This option enables support for ARTOP/Acard ATP867X PATA
- controllers.
-
- If unsure, say N.
-
-config PATA_AT32
- tristate "Atmel AVR32 PATA support (Experimental)"
- depends on AVR32 && PLATFORM_AT32AP && EXPERIMENTAL
- help
- This option enables support for the IDE devices on the
- Atmel AT32AP platform.
+ This option enables support for the ATI ATA interfaces
+ found on the many ATI chipsets.
If unsure, say N.
-config PATA_ATIIXP
- tristate "ATI PATA support"
+config PATA_ATP867X
+ tristate "ARTOP/Acard ATP867X PATA support"
depends on PCI
help
- This option enables support for the ATI ATA interfaces
- found on the many ATI chipsets.
+ This option enables support for ARTOP/Acard ATP867X PATA
+ controllers.
If unsure, say N.
-config PATA_CMD640_PCI
- tristate "CMD640 PCI PATA support (Experimental)"
- depends on PCI && EXPERIMENTAL
+config PATA_BF54X
+ tristate "Blackfin 54x ATAPI support"
+ depends on BF542 || BF548 || BF549
help
- This option enables support for the CMD640 PCI IDE
- interface chip. Only the primary channel is currently
- supported.
+ This option enables support for the built-in ATAPI controller on
+ Blackfin 54x family chips.
If unsure, say N.
If unsure, say N.
-config ATA_GENERIC
- tristate "Generic ATA support"
- depends on PCI
- help
- This option enables support for generic BIOS configured
- ATA controllers via the new ATA layer
-
- If unsure, say N.
-
config PATA_HPT366
tristate "HPT 366/368 PATA support"
depends on PCI
controllers. Enable with care as there are still some
problems with DMA on this chipset.
-config PATA_ISAPNP
- tristate "ISA Plug and Play PATA support"
- depends on ISAPNP
+config PATA_ICSIDE
+ tristate "Acorn ICS PATA support"
+ depends on ARM && ARCH_ACORN
help
- This option enables support for ISA plug & play ATA
- controllers such as those found on old soundcards.
+ On Acorn systems, say Y here if you wish to use the ICS PATA
+ interface card. This is not required for ICS partition support.
+ If you are unsure, say N to this.
+
+config PATA_IT8213
+ tristate "IT8213 PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the ITE 821 PATA
+ controllers via the new ATA layer.
If unsure, say N.
If unsure, say N.
-config PATA_IT8213
- tristate "IT8213 PATA support (Experimental)"
- depends on PCI && EXPERIMENTAL
- help
- This option enables support for the ITE 821 PATA
- controllers via the new ATA layer.
-
- If unsure, say N.
-
config PATA_JMICRON
tristate "JMicron PATA support"
depends on PCI
If unsure, say N.
-config PATA_LEGACY
- tristate "Legacy ISA PATA support (Experimental)"
- depends on (ISA || PCI) && EXPERIMENTAL
- help
- This option enables support for ISA/VLB/PCI bus legacy PATA
- ports and allows them to be accessed via the new ATA layer.
-
- If unsure, say N.
-
-config PATA_TRIFLEX
- tristate "Compaq Triflex PATA support"
- depends on PCI
+config PATA_MACIO
+ tristate "Apple PowerMac/PowerBook internal 'MacIO' IDE"
+ depends on PPC_PMAC
help
- Enable support for the Compaq 'Triflex' IDE controller as found
- on many Compaq Pentium-Pro systems, via the new ATA layer.
-
- If unsure, say N.
+ Most IDE capable PowerMacs have IDE busses driven by a variant
+ of this controller which is part of the Apple chipset used on
+ most PowerMac models. Some models have multiple busses using
+ different chipsets, though generally, MacIO is one of them.
config PATA_MARVELL
tristate "Marvell PATA support via legacy mode"
If unsure, say N.
-config PATA_MPC52xx
- tristate "Freescale MPC52xx SoC internal IDE"
- depends on PPC_MPC52xx && PPC_BESTCOMM
- select PPC_BESTCOMM_ATA
- help
- This option enables support for integrated IDE controller
- of the Freescale MPC52xx SoC.
-
- If unsure, say N.
-
-config PATA_MPIIX
- tristate "Intel PATA MPIIX support"
- depends on PCI
- help
- This option enables support for MPIIX PATA support.
-
- If unsure, say N.
-
-config PATA_OLDPIIX
- tristate "Intel PATA old PIIX support"
- depends on PCI
- help
- This option enables support for early PIIX PATA support.
-
- If unsure, say N.
-
config PATA_NETCELL
tristate "NETCELL Revolution RAID support"
depends on PCI
If unsure, say N.
-config PATA_NS87410
- tristate "Nat Semi NS87410 PATA support"
- depends on PCI
- help
- This option enables support for the National Semiconductor
- NS87410 PCI-IDE controller.
-
- If unsure, say N.
-
config PATA_NS87415
tristate "Nat Semi NS87415 PATA support"
depends on PCI
If unsure, say N.
-config PATA_OPTI
- tristate "OPTI621/6215 PATA support (Very Experimental)"
- depends on PCI && EXPERIMENTAL
+config PATA_OLDPIIX
+ tristate "Intel PATA old PIIX support"
+ depends on PCI
help
- This option enables full PIO support for the early Opti ATA
- controllers found on some old motherboards.
+ This option enables support for early PIIX PATA support.
If unsure, say N.
If unsure, say N.
-config PATA_PALMLD
- tristate "Palm LifeDrive PATA support"
- depends on MACH_PALMLD
- help
- This option enables support for Palm LifeDrive's internal ATA
- port via the new ATA layer.
-
- If unsure, say N.
-
-config PATA_PCMCIA
- tristate "PCMCIA PATA support"
- depends on PCMCIA
- help
- This option enables support for PCMCIA ATA interfaces, including
- compact flash card adapters via the new ATA layer.
-
- If unsure, say N.
-
config PATA_PDC2027X
tristate "Promise PATA 2027x support"
depends on PCI
If unsure, say N.
-config PATA_QDI
- tristate "QDI VLB PATA support"
- depends on ISA
- help
- Support for QDI 6500 and 6580 PATA controllers on VESA local bus.
-
config PATA_RADISYS
tristate "RADISYS 82600 PATA support (Experimental)"
depends on PCI && EXPERIMENTAL
If unsure, say N.
-config PATA_RB532
- tristate "RouterBoard 532 PATA CompactFlash support"
- depends on MIKROTIK_RB532
- help
- This option enables support for the RouterBoard 532
- PATA CompactFlash controller.
-
- If unsure, say N.
-
config PATA_RDC
tristate "RDC PATA support"
depends on PCI
If unsure, say N.
-config PATA_RZ1000
- tristate "PC Tech RZ1000 PATA support"
+config PATA_SC1200
+ tristate "SC1200 PATA support"
depends on PCI
help
- This option enables basic support for the PC Tech RZ1000/1
- PATA controllers via the new ATA layer
+ This option enables support for the NatSemi/AMD SC1200 SoC
+ companion chip used with the Geode processor family.
If unsure, say N.
-config PATA_SC1200
- tristate "SC1200 PATA support"
+config PATA_SCC
+ tristate "Toshiba's Cell Reference Set IDE support"
+ depends on PCI && PPC_CELLEB
+ help
+ This option enables support for the built-in IDE controller on
+ Toshiba Cell Reference Board.
+
+ If unsure, say N.
+
+config PATA_SCH
+ tristate "Intel SCH PATA support"
depends on PCI
help
- This option enables support for the NatSemi/AMD SC1200 SoC
- companion chip used with the Geode processor family.
+ This option enables support for Intel SCH PATA on the Intel
+ SCH (US15W, US15L, UL11L) series host controllers.
If unsure, say N.
If unsure, say N.
+config PATA_TRIFLEX
+ tristate "Compaq Triflex PATA support"
+ depends on PCI
+ help
+ Enable support for the Compaq 'Triflex' IDE controller as found
+ on many Compaq Pentium-Pro systems, via the new ATA layer.
+
+ If unsure, say N.
+
config PATA_VIA
tristate "VIA PATA support"
depends on PCI
If unsure, say N.
-config PATA_WINBOND_VLB
- tristate "Winbond W83759A VLB PATA support (Experimental)"
- depends on ISA && EXPERIMENTAL
+endif # ATA_BMDMA
+
+comment "PIO-only SFF controllers"
+
+config PATA_AT32
+ tristate "Atmel AVR32 PATA support (Experimental)"
+ depends on AVR32 && PLATFORM_AT32AP && EXPERIMENTAL
help
- Support for the Winbond W83759A controller on Vesa Local Bus
- systems.
+ This option enables support for the IDE devices on the
+ Atmel AT32AP platform.
+
+ If unsure, say N.
+
+config PATA_AT91
+ tristate "PATA support for AT91SAM9260"
+ depends on ARM && ARCH_AT91
+ help
+ This option enables support for IDE devices on the Atmel AT91SAM9260 SoC.
+
+ If unsure, say N.
+
+config PATA_CMD640_PCI
+ tristate "CMD640 PCI PATA support (Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables support for the CMD640 PCI IDE
+ interface chip. Only the primary channel is currently
+ supported.
+
+ If unsure, say N.
+
+config PATA_ISAPNP
+ tristate "ISA Plug and Play PATA support"
+ depends on ISAPNP
+ help
+ This option enables support for ISA plug & play ATA
+ controllers such as those found on old soundcards.
+
+ If unsure, say N.
+
+config PATA_IXP4XX_CF
+ tristate "IXP4XX Compact Flash support"
+ depends on ARCH_IXP4XX
+ help
+ This option enables support for a Compact Flash connected on
+ the ixp4xx expansion bus. This driver had been written for
+ Loft/Avila boards in mind but can work with others.
+
+ If unsure, say N.
+
+config PATA_MPIIX
+ tristate "Intel PATA MPIIX support"
+ depends on PCI
+ help
+ This option enables support for MPIIX PATA support.
+
+ If unsure, say N.
+
+config PATA_NS87410
+ tristate "Nat Semi NS87410 PATA support"
+ depends on PCI
+ help
+ This option enables support for the National Semiconductor
+ NS87410 PCI-IDE controller.
+
+ If unsure, say N.
+
+config PATA_OPTI
+ tristate "OPTI621/6215 PATA support (Very Experimental)"
+ depends on PCI && EXPERIMENTAL
+ help
+ This option enables full PIO support for the early Opti ATA
+ controllers found on some old motherboards.
+
+ If unsure, say N.
+
+config PATA_PALMLD
+ tristate "Palm LifeDrive PATA support"
+ depends on MACH_PALMLD
+ help
+ This option enables support for Palm LifeDrive's internal ATA
+ port via the new ATA layer.
+
+ If unsure, say N.
+
+config PATA_PCMCIA
+ tristate "PCMCIA PATA support"
+ depends on PCMCIA
+ help
+ This option enables support for PCMCIA ATA interfaces, including
+ compact flash card adapters via the new ATA layer.
+
+ If unsure, say N.
config HAVE_PATA_PLATFORM
bool
If unsure, say N.
-config PATA_AT91
- tristate "PATA support for AT91SAM9260"
- depends on ARM && ARCH_AT91
- help
- This option enables support for IDE devices on the Atmel AT91SAM9260 SoC.
-
- If unsure, say N.
-
config PATA_OF_PLATFORM
tristate "OpenFirmware platform device PATA support"
depends on PATA_PLATFORM && PPC_OF
If unsure, say N.
-config PATA_ICSIDE
- tristate "Acorn ICS PATA support"
- depends on ARM && ARCH_ACORN
+config PATA_QDI
+ tristate "QDI VLB PATA support"
+ depends on ISA
help
- On Acorn systems, say Y here if you wish to use the ICS PATA
- interface card. This is not required for ICS partition support.
- If you are unsure, say N to this.
+ Support for QDI 6500 and 6580 PATA controllers on VESA local bus.
-config PATA_IXP4XX_CF
- tristate "IXP4XX Compact Flash support"
- depends on ARCH_IXP4XX
+config PATA_RB532
+ tristate "RouterBoard 532 PATA CompactFlash support"
+ depends on MIKROTIK_RB532
help
- This option enables support for a Compact Flash connected on
- the ixp4xx expansion bus. This driver had been written for
- Loft/Avila boards in mind but can work with others.
+ This option enables support for the RouterBoard 532
+ PATA CompactFlash controller.
If unsure, say N.
-config PATA_OCTEON_CF
- tristate "OCTEON Boot Bus Compact Flash support"
- depends on CPU_CAVIUM_OCTEON
+config PATA_RZ1000
+ tristate "PC Tech RZ1000 PATA support"
+ depends on PCI
help
- This option enables a polled compact flash driver for use with
- compact flash cards attached to the OCTEON boot bus.
+ This option enables basic support for the PC Tech RZ1000/1
+ PATA controllers via the new ATA layer
If unsure, say N.
-config PATA_SCC
- tristate "Toshiba's Cell Reference Set IDE support"
- depends on PCI && PPC_CELLEB
+config PATA_WINBOND_VLB
+ tristate "Winbond W83759A VLB PATA support (Experimental)"
+ depends on ISA && EXPERIMENTAL
help
- This option enables support for the built-in IDE controller on
- Toshiba Cell Reference Board.
+ Support for the Winbond W83759A controller on Vesa Local Bus
+ systems.
- If unsure, say N.
+comment "Generic fallback / legacy drivers"
-config PATA_SCH
- tristate "Intel SCH PATA support"
- depends on PCI
+config PATA_ACPI
+ tristate "ACPI firmware driver for PATA"
+ depends on ATA_ACPI && ATA_BMDMA
help
- This option enables support for Intel SCH PATA on the Intel
- SCH (US15W, US15L, UL11L) series host controllers.
-
- If unsure, say N.
+ This option enables an ACPI method driver which drives
+ motherboard PATA controller interfaces through the ACPI
+ firmware in the BIOS. This driver can sometimes handle
+ otherwise unsupported hardware.
-config PATA_BF54X
- tristate "Blackfin 54x ATAPI support"
- depends on BF542 || BF548 || BF549
+config ATA_GENERIC
+ tristate "Generic ATA support"
+ depends on PCI && ATA_BMDMA
help
- This option enables support for the built-in ATAPI controller on
- Blackfin 54x family chips.
+ This option enables support for generic BIOS configured
+ ATA controllers via the new ATA layer
If unsure, say N.
-config PATA_MACIO
- tristate "Apple PowerMac/PowerBook internal 'MacIO' IDE"
- depends on PPC_PMAC
+config PATA_LEGACY
+ tristate "Legacy ISA PATA support (Experimental)"
+ depends on (ISA || PCI) && EXPERIMENTAL
help
- Most IDE capable PowerMacs have IDE busses driven by a variant
- of this controller which is part of the Apple chipset used on
- most PowerMac models. Some models have multiple busses using
- different chipsets, though generally, MacIO is one of them.
+ This option enables support for ISA/VLB/PCI bus legacy PATA
+ ports and allows them to be accessed via the new ATA layer.
+ If unsure, say N.
endif # ATA_SFF
endif # ATA
obj-$(CONFIG_ATA) += libata.o
+# non-SFF interface
obj-$(CONFIG_SATA_AHCI) += ahci.o libahci.o
obj-$(CONFIG_SATA_AHCI_PLATFORM) += ahci_platform.o libahci.o
-obj-$(CONFIG_SATA_SVW) += sata_svw.o
+obj-$(CONFIG_SATA_FSL) += sata_fsl.o
+obj-$(CONFIG_SATA_INIC162X) += sata_inic162x.o
+obj-$(CONFIG_SATA_SIL24) += sata_sil24.o
+
+# SFF w/ custom DMA
+obj-$(CONFIG_PDC_ADMA) += pdc_adma.o
+obj-$(CONFIG_PATA_MPC52xx) += pata_mpc52xx.o
+obj-$(CONFIG_PATA_OCTEON_CF) += pata_octeon_cf.o
+obj-$(CONFIG_SATA_QSTOR) += sata_qstor.o
+obj-$(CONFIG_SATA_SX4) += sata_sx4.o
+
+# SFF SATA w/ BMDMA
obj-$(CONFIG_ATA_PIIX) += ata_piix.o
+obj-$(CONFIG_SATA_MV) += sata_mv.o
+obj-$(CONFIG_SATA_NV) += sata_nv.o
obj-$(CONFIG_SATA_PROMISE) += sata_promise.o
-obj-$(CONFIG_SATA_QSTOR) += sata_qstor.o
obj-$(CONFIG_SATA_SIL) += sata_sil.o
-obj-$(CONFIG_SATA_SIL24) += sata_sil24.o
-obj-$(CONFIG_SATA_VIA) += sata_via.o
-obj-$(CONFIG_SATA_VITESSE) += sata_vsc.o
obj-$(CONFIG_SATA_SIS) += sata_sis.o
-obj-$(CONFIG_SATA_SX4) += sata_sx4.o
-obj-$(CONFIG_SATA_NV) += sata_nv.o
+obj-$(CONFIG_SATA_SVW) += sata_svw.o
obj-$(CONFIG_SATA_ULI) += sata_uli.o
-obj-$(CONFIG_SATA_MV) += sata_mv.o
-obj-$(CONFIG_SATA_INIC162X) += sata_inic162x.o
-obj-$(CONFIG_PDC_ADMA) += pdc_adma.o
-obj-$(CONFIG_SATA_FSL) += sata_fsl.o
-obj-$(CONFIG_PATA_MACIO) += pata_macio.o
+obj-$(CONFIG_SATA_VIA) += sata_via.o
+obj-$(CONFIG_SATA_VITESSE) += sata_vsc.o
+# SFF PATA w/ BMDMA
obj-$(CONFIG_PATA_ALI) += pata_ali.o
obj-$(CONFIG_PATA_AMD) += pata_amd.o
obj-$(CONFIG_PATA_ARTOP) += pata_artop.o
-obj-$(CONFIG_PATA_ATP867X) += pata_atp867x.o
-obj-$(CONFIG_PATA_AT32) += pata_at32.o
obj-$(CONFIG_PATA_ATIIXP) += pata_atiixp.o
-obj-$(CONFIG_PATA_CMD640_PCI) += pata_cmd640.o
+obj-$(CONFIG_PATA_ATP867X) += pata_atp867x.o
+obj-$(CONFIG_PATA_BF54X) += pata_bf54x.o
obj-$(CONFIG_PATA_CMD64X) += pata_cmd64x.o
obj-$(CONFIG_PATA_CS5520) += pata_cs5520.o
obj-$(CONFIG_PATA_CS5530) += pata_cs5530.o
obj-$(CONFIG_PATA_HPT37X) += pata_hpt37x.o
obj-$(CONFIG_PATA_HPT3X2N) += pata_hpt3x2n.o
obj-$(CONFIG_PATA_HPT3X3) += pata_hpt3x3.o
-obj-$(CONFIG_PATA_ISAPNP) += pata_isapnp.o
-obj-$(CONFIG_PATA_IT821X) += pata_it821x.o
+obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o
obj-$(CONFIG_PATA_IT8213) += pata_it8213.o
+obj-$(CONFIG_PATA_IT821X) += pata_it821x.o
obj-$(CONFIG_PATA_JMICRON) += pata_jmicron.o
+obj-$(CONFIG_PATA_MACIO) += pata_macio.o
+obj-$(CONFIG_PATA_MARVELL) += pata_marvell.o
obj-$(CONFIG_PATA_NETCELL) += pata_netcell.o
obj-$(CONFIG_PATA_NINJA32) += pata_ninja32.o
-obj-$(CONFIG_PATA_NS87410) += pata_ns87410.o
obj-$(CONFIG_PATA_NS87415) += pata_ns87415.o
-obj-$(CONFIG_PATA_OPTI) += pata_opti.o
-obj-$(CONFIG_PATA_OPTIDMA) += pata_optidma.o
-obj-$(CONFIG_PATA_MPC52xx) += pata_mpc52xx.o
-obj-$(CONFIG_PATA_MARVELL) += pata_marvell.o
-obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o
obj-$(CONFIG_PATA_OLDPIIX) += pata_oldpiix.o
-obj-$(CONFIG_PATA_PALMLD) += pata_palmld.o
-obj-$(CONFIG_PATA_PCMCIA) += pata_pcmcia.o
+obj-$(CONFIG_PATA_OPTIDMA) += pata_optidma.o
obj-$(CONFIG_PATA_PDC2027X) += pata_pdc2027x.o
obj-$(CONFIG_PATA_PDC_OLD) += pata_pdc202xx_old.o
-obj-$(CONFIG_PATA_QDI) += pata_qdi.o
obj-$(CONFIG_PATA_RADISYS) += pata_radisys.o
-obj-$(CONFIG_PATA_RB532) += pata_rb532_cf.o
obj-$(CONFIG_PATA_RDC) += pata_rdc.o
-obj-$(CONFIG_PATA_RZ1000) += pata_rz1000.o
obj-$(CONFIG_PATA_SC1200) += pata_sc1200.o
+obj-$(CONFIG_PATA_SCC) += pata_scc.o
+obj-$(CONFIG_PATA_SCH) += pata_sch.o
obj-$(CONFIG_PATA_SERVERWORKS) += pata_serverworks.o
obj-$(CONFIG_PATA_SIL680) += pata_sil680.o
+obj-$(CONFIG_PATA_SIS) += pata_sis.o
obj-$(CONFIG_PATA_TOSHIBA) += pata_piccolo.o
+obj-$(CONFIG_PATA_TRIFLEX) += pata_triflex.o
obj-$(CONFIG_PATA_VIA) += pata_via.o
obj-$(CONFIG_PATA_WINBOND) += pata_sl82c105.o
-obj-$(CONFIG_PATA_WINBOND_VLB) += pata_winbond.o
-obj-$(CONFIG_PATA_SIS) += pata_sis.o
-obj-$(CONFIG_PATA_TRIFLEX) += pata_triflex.o
+
+# SFF PIO only
+obj-$(CONFIG_PATA_AT32) += pata_at32.o
+obj-$(CONFIG_PATA_AT91) += pata_at91.o
+obj-$(CONFIG_PATA_CMD640_PCI) += pata_cmd640.o
+obj-$(CONFIG_PATA_ISAPNP) += pata_isapnp.o
obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o
-obj-$(CONFIG_PATA_SCC) += pata_scc.o
-obj-$(CONFIG_PATA_SCH) += pata_sch.o
-obj-$(CONFIG_PATA_BF54X) += pata_bf54x.o
-obj-$(CONFIG_PATA_OCTEON_CF) += pata_octeon_cf.o
+obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o
+obj-$(CONFIG_PATA_NS87410) += pata_ns87410.o
+obj-$(CONFIG_PATA_OPTI) += pata_opti.o
+obj-$(CONFIG_PATA_PCMCIA) += pata_pcmcia.o
+obj-$(CONFIG_PATA_PALMLD) += pata_palmld.o
obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o
-obj-$(CONFIG_PATA_AT91) += pata_at91.o
obj-$(CONFIG_PATA_OF_PLATFORM) += pata_of_platform.o
-obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o
+obj-$(CONFIG_PATA_QDI) += pata_qdi.o
+obj-$(CONFIG_PATA_RB532) += pata_rb532_cf.o
+obj-$(CONFIG_PATA_RZ1000) += pata_rz1000.o
+obj-$(CONFIG_PATA_WINBOND_VLB) += pata_winbond.o
+
# Should be last but two libata driver
obj-$(CONFIG_PATA_ACPI) += pata_acpi.o
# Should be last but one libata driver
return rc;
pcim_pin_device(dev);
}
- return ata_pci_sff_init_one(dev, ppi, &generic_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &generic_sht, NULL, 0);
}
static struct pci_device_id ata_generic[] = {
hpriv->map = piix_init_sata_map(pdev, port_info,
piix_map_db_table[ent->driver_data]);
- rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+ rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
host->private_data = hpriv;
host->flags |= ATA_HOST_PARALLEL_SCAN;
pci_set_master(pdev);
- return ata_pci_sff_activate_host(host, ata_sff_interrupt, &piix_sht);
+ return ata_pci_sff_activate_host(host, ata_bmdma_interrupt, &piix_sht);
}
static void piix_remove_one(struct pci_dev *pdev)
module_param_named(allow_tpm, libata_allow_tpm, int, 0444);
MODULE_PARM_DESC(allow_tpm, "Permit the use of TPM commands (0=off [default], 1=on)");
+static int atapi_an;
+module_param(atapi_an, int, 0444);
+MODULE_PARM_DESC(atapi_an, "Enable ATAPI AN media presence notification (0=0ff [default], 1=on)");
+
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("Library module for ATA devices");
MODULE_LICENSE("GPL");
goto err_out;
}
+ if (dev->horkage & ATA_HORKAGE_DUMP_ID) {
+ ata_dev_printk(dev, KERN_DEBUG, "dumping IDENTIFY data, "
+ "class=%d may_fallback=%d tried_spinup=%d\n",
+ class, may_fallback, tried_spinup);
+ print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET,
+ 16, 2, id, ATA_ID_WORDS * sizeof(*id), true);
+ }
+
/* Falling back doesn't make sense if ID data was read
* successfully at least once.
*/
* to enable ATAPI AN to discern between PHY status
* changed notifications and ATAPI ANs.
*/
- if ((ap->flags & ATA_FLAG_AN) && ata_id_has_atapi_AN(id) &&
+ if (atapi_an &&
+ (ap->flags & ATA_FLAG_AN) && ata_id_has_atapi_AN(id) &&
(!sata_pmp_attached(ap) ||
sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf) == 0)) {
unsigned int err_mask;
{ "3.0Gbps", .spd_limit = 2 },
{ "noncq", .horkage_on = ATA_HORKAGE_NONCQ },
{ "ncq", .horkage_off = ATA_HORKAGE_NONCQ },
+ { "dump_id", .horkage_on = ATA_HORKAGE_DUMP_ID },
{ "pio0", .xfer_mask = 1 << (ATA_SHIFT_PIO + 0) },
{ "pio1", .xfer_mask = 1 << (ATA_SHIFT_PIO + 1) },
{ "pio2", .xfer_mask = 1 << (ATA_SHIFT_PIO + 2) },
.sff_tf_read = ata_sff_tf_read,
.sff_exec_command = ata_sff_exec_command,
.sff_data_xfer = ata_sff_data_xfer,
- .sff_irq_clear = ata_sff_irq_clear,
.sff_drain_fifo = ata_sff_drain_fifo,
.lost_interrupt = ata_sff_lost_interrupt,
ata_sff_set_devctl(ap, ap->ctl);
ata_wait_idle(ap);
- ap->ops->sff_irq_clear(ap);
+ if (ap->ops->sff_irq_clear)
+ ap->ops->sff_irq_clear(ap);
}
EXPORT_SYMBOL_GPL(ata_sff_irq_on);
-/**
- * ata_sff_irq_clear - Clear PCI IDE BMDMA interrupt.
- * @ap: Port associated with this ATA transaction.
- *
- * Clear interrupt and error flags in DMA status register.
- *
- * May be used as the irq_clear() entry in ata_port_operations.
- *
- * LOCKING:
- * spin_lock_irqsave(host lock)
- */
-void ata_sff_irq_clear(struct ata_port *ap)
-{
- void __iomem *mmio = ap->ioaddr.bmdma_addr;
-
- if (!mmio)
- return;
-
- iowrite8(ioread8(mmio + ATA_DMA_STATUS), mmio + ATA_DMA_STATUS);
-}
-EXPORT_SYMBOL_GPL(ata_sff_irq_clear);
-
/**
* ata_sff_tf_load - send taskfile registers to host controller
* @ap: Port to which output is sent
case ATAPI_PROT_NODATA:
ap->hsm_task_state = HSM_ST_LAST;
break;
+#ifdef CONFIG_ATA_BMDMA
case ATAPI_PROT_DMA:
ap->hsm_task_state = HSM_ST_LAST;
/* initiate bmdma */
ap->ops->bmdma_start(qc);
break;
+#endif /* CONFIG_ATA_BMDMA */
+ default:
+ BUG();
}
}
}
EXPORT_SYMBOL_GPL(ata_sff_qc_fill_rtf);
-/**
- * ata_sff_host_intr - Handle host interrupt for given (port, task)
- * @ap: Port on which interrupt arrived (possibly...)
- * @qc: Taskfile currently active in engine
- *
- * Handle host interrupt for given queued command. Currently,
- * only DMA interrupts are handled. All other commands are
- * handled via polling with interrupts disabled (nIEN bit).
- *
- * LOCKING:
- * spin_lock_irqsave(host lock)
- *
- * RETURNS:
- * One if interrupt was handled, zero if not (shared irq).
- */
-unsigned int ata_sff_host_intr(struct ata_port *ap,
- struct ata_queued_cmd *qc)
+static unsigned int ata_sff_idle_irq(struct ata_port *ap)
{
- struct ata_eh_info *ehi = &ap->link.eh_info;
- u8 status, host_stat = 0;
- bool bmdma_stopped = false;
+ ap->stats.idle_irq++;
+
+#ifdef ATA_IRQ_TRAP
+ if ((ap->stats.idle_irq % 1000) == 0) {
+ ap->ops->sff_check_status(ap);
+ if (ap->ops->sff_irq_clear)
+ ap->ops->sff_irq_clear(ap);
+ ata_port_printk(ap, KERN_WARNING, "irq trap\n");
+ return 1;
+ }
+#endif
+ return 0; /* irq not handled */
+}
+
+static unsigned int __ata_sff_port_intr(struct ata_port *ap,
+ struct ata_queued_cmd *qc,
+ bool hsmv_on_idle)
+{
+ u8 status;
VPRINTK("ata%u: protocol %d task_state %d\n",
ap->print_id, qc->tf.protocol, ap->hsm_task_state);
* need to check ata_is_atapi(qc->tf.protocol) again.
*/
if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
- goto idle_irq;
- break;
- case HSM_ST_LAST:
- if (qc->tf.protocol == ATA_PROT_DMA ||
- qc->tf.protocol == ATAPI_PROT_DMA) {
- /* check status of DMA engine */
- host_stat = ap->ops->bmdma_status(ap);
- VPRINTK("ata%u: host_stat 0x%X\n",
- ap->print_id, host_stat);
-
- /* if it's not our irq... */
- if (!(host_stat & ATA_DMA_INTR))
- goto idle_irq;
-
- /* before we do anything else, clear DMA-Start bit */
- ap->ops->bmdma_stop(qc);
- bmdma_stopped = true;
-
- if (unlikely(host_stat & ATA_DMA_ERR)) {
- /* error when transfering data to/from memory */
- qc->err_mask |= AC_ERR_HOST_BUS;
- ap->hsm_task_state = HSM_ST_ERR;
- }
- }
+ return ata_sff_idle_irq(ap);
break;
case HSM_ST:
+ case HSM_ST_LAST:
break;
default:
- goto idle_irq;
+ return ata_sff_idle_irq(ap);
}
-
/* check main status, clearing INTRQ if needed */
status = ata_sff_irq_status(ap);
if (status & ATA_BUSY) {
- if (bmdma_stopped) {
+ if (hsmv_on_idle) {
/* BMDMA engine is already stopped, we're screwed */
qc->err_mask |= AC_ERR_HSM;
ap->hsm_task_state = HSM_ST_ERR;
} else
- goto idle_irq;
+ return ata_sff_idle_irq(ap);
}
/* clear irq events */
- ap->ops->sff_irq_clear(ap);
+ if (ap->ops->sff_irq_clear)
+ ap->ops->sff_irq_clear(ap);
ata_sff_hsm_move(ap, qc, status, 0);
- if (unlikely(qc->err_mask) && (qc->tf.protocol == ATA_PROT_DMA ||
- qc->tf.protocol == ATAPI_PROT_DMA))
- ata_ehi_push_desc(ehi, "BMDMA stat 0x%x", host_stat);
-
return 1; /* irq handled */
-
-idle_irq:
- ap->stats.idle_irq++;
-
-#ifdef ATA_IRQ_TRAP
- if ((ap->stats.idle_irq % 1000) == 0) {
- ap->ops->sff_check_status(ap);
- ap->ops->sff_irq_clear(ap);
- ata_port_printk(ap, KERN_WARNING, "irq trap\n");
- return 1;
- }
-#endif
- return 0; /* irq not handled */
}
-EXPORT_SYMBOL_GPL(ata_sff_host_intr);
/**
- * ata_sff_interrupt - Default ATA host interrupt handler
- * @irq: irq line (unused)
- * @dev_instance: pointer to our ata_host information structure
+ * ata_sff_port_intr - Handle SFF port interrupt
+ * @ap: Port on which interrupt arrived (possibly...)
+ * @qc: Taskfile currently active in engine
*
- * Default interrupt handler for PCI IDE devices. Calls
- * ata_sff_host_intr() for each port that is not disabled.
+ * Handle port interrupt for given queued command.
*
* LOCKING:
- * Obtains host lock during operation.
+ * spin_lock_irqsave(host lock)
*
* RETURNS:
- * IRQ_NONE or IRQ_HANDLED.
+ * One if interrupt was handled, zero if not (shared irq).
*/
-irqreturn_t ata_sff_interrupt(int irq, void *dev_instance)
+unsigned int ata_sff_port_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
+{
+ return __ata_sff_port_intr(ap, qc, false);
+}
+EXPORT_SYMBOL_GPL(ata_sff_port_intr);
+
+static inline irqreturn_t __ata_sff_interrupt(int irq, void *dev_instance,
+ unsigned int (*port_intr)(struct ata_port *, struct ata_queued_cmd *))
{
struct ata_host *host = dev_instance;
bool retried = false;
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc) {
if (!(qc->tf.flags & ATA_TFLAG_POLLING))
- handled |= ata_sff_host_intr(ap, qc);
+ handled |= port_intr(ap, qc);
else
polling |= 1 << i;
} else
if (idle & (1 << i)) {
ap->ops->sff_check_status(ap);
- ap->ops->sff_irq_clear(ap);
+ if (ap->ops->sff_irq_clear)
+ ap->ops->sff_irq_clear(ap);
} else {
/* clear INTRQ and check if BUSY cleared */
if (!(ap->ops->sff_check_status(ap) & ATA_BUSY))
return IRQ_RETVAL(handled);
}
+
+/**
+ * ata_sff_interrupt - Default SFF ATA host interrupt handler
+ * @irq: irq line (unused)
+ * @dev_instance: pointer to our ata_host information structure
+ *
+ * Default interrupt handler for PCI IDE devices. Calls
+ * ata_sff_port_intr() for each port that is not disabled.
+ *
+ * LOCKING:
+ * Obtains host lock during operation.
+ *
+ * RETURNS:
+ * IRQ_NONE or IRQ_HANDLED.
+ */
+irqreturn_t ata_sff_interrupt(int irq, void *dev_instance)
+{
+ return __ata_sff_interrupt(irq, dev_instance, ata_sff_port_intr);
+}
EXPORT_SYMBOL_GPL(ata_sff_interrupt);
/**
status);
/* Run the host interrupt logic as if the interrupt had not been
lost */
- ata_sff_host_intr(ap, qc);
+ ata_sff_port_intr(ap, qc);
}
EXPORT_SYMBOL_GPL(ata_sff_lost_interrupt);
*/
ap->ops->sff_check_status(ap);
- ap->ops->sff_irq_clear(ap);
+ if (ap->ops->sff_irq_clear)
+ ap->ops->sff_irq_clear(ap);
}
EXPORT_SYMBOL_GPL(ata_sff_freeze);
{
/* clear & re-enable interrupts */
ap->ops->sff_check_status(ap);
- ap->ops->sff_irq_clear(ap);
+ if (ap->ops->sff_irq_clear)
+ ap->ops->sff_irq_clear(ap);
ata_sff_irq_on(ap);
}
EXPORT_SYMBOL_GPL(ata_sff_thaw);
EXPORT_SYMBOL_GPL(ata_pci_sff_init_host);
/**
- * ata_pci_sff_prepare_host - helper to prepare native PCI ATA host
+ * ata_pci_sff_prepare_host - helper to prepare PCI PIO-only SFF ATA host
* @pdev: target PCI device
* @ppi: array of port_info, must be enough for two ports
* @r_host: out argument for the initialized ATA host
*
- * Helper to allocate ATA host for @pdev, acquire all native PCI
- * resources and initialize it accordingly in one go.
+ * Helper to allocate PIO-only SFF ATA host for @pdev, acquire
+ * all PCI resources and initialize it accordingly in one go.
*
* LOCKING:
* Inherited from calling layer (may sleep).
if (rc)
goto err_out;
- /* init DMA related stuff */
- ata_pci_bmdma_init(host);
-
devres_remove_group(&pdev->dev, NULL);
*r_host = host;
return 0;
}
EXPORT_SYMBOL_GPL(ata_pci_sff_activate_host);
+static const struct ata_port_info *ata_sff_find_valid_pi(
+ const struct ata_port_info * const *ppi)
+{
+ int i;
+
+ /* look up the first valid port_info */
+ for (i = 0; i < 2 && ppi[i]; i++)
+ if (ppi[i]->port_ops != &ata_dummy_port_ops)
+ return ppi[i];
+
+ return NULL;
+}
+
/**
- * ata_pci_sff_init_one - Initialize/register PCI IDE host controller
+ * ata_pci_sff_init_one - Initialize/register PIO-only PCI IDE controller
* @pdev: Controller to be initialized
* @ppi: array of port_info, must be enough for two ports
* @sht: scsi_host_template to use when registering the host
*
* This is a helper function which can be called from a driver's
* xxx_init_one() probe function if the hardware uses traditional
- * IDE taskfile registers.
- *
- * This function calls pci_enable_device(), reserves its register
- * regions, sets the dma mask, enables bus master mode, and calls
- * ata_device_add()
+ * IDE taskfile registers and is PIO only.
*
* ASSUMPTION:
* Nobody makes a single channel controller that appears solely as
struct scsi_host_template *sht, void *host_priv, int hflag)
{
struct device *dev = &pdev->dev;
- const struct ata_port_info *pi = NULL;
+ const struct ata_port_info *pi;
struct ata_host *host = NULL;
- int i, rc;
+ int rc;
DPRINTK("ENTER\n");
- /* look up the first valid port_info */
- for (i = 0; i < 2 && ppi[i]; i++) {
- if (ppi[i]->port_ops != &ata_dummy_port_ops) {
- pi = ppi[i];
- break;
- }
- }
-
+ pi = ata_sff_find_valid_pi(ppi);
if (!pi) {
dev_printk(KERN_ERR, &pdev->dev,
"no valid port_info specified\n");
host->private_data = host_priv;
host->flags |= hflag;
- pci_set_master(pdev);
rc = ata_pci_sff_activate_host(host, ata_sff_interrupt, sht);
out:
if (rc == 0)
#endif /* CONFIG_PCI */
+/*
+ * BMDMA support
+ */
+
+#ifdef CONFIG_ATA_BMDMA
+
const struct ata_port_operations ata_bmdma_port_ops = {
.inherits = &ata_sff_port_ops,
.qc_prep = ata_bmdma_qc_prep,
.qc_issue = ata_bmdma_qc_issue,
+ .sff_irq_clear = ata_bmdma_irq_clear,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
.bmdma_stop = ata_bmdma_stop,
}
EXPORT_SYMBOL_GPL(ata_bmdma_qc_issue);
+/**
+ * ata_bmdma_port_intr - Handle BMDMA port interrupt
+ * @ap: Port on which interrupt arrived (possibly...)
+ * @qc: Taskfile currently active in engine
+ *
+ * Handle port interrupt for given queued command.
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host lock)
+ *
+ * RETURNS:
+ * One if interrupt was handled, zero if not (shared irq).
+ */
+unsigned int ata_bmdma_port_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
+{
+ struct ata_eh_info *ehi = &ap->link.eh_info;
+ u8 host_stat = 0;
+ bool bmdma_stopped = false;
+ unsigned int handled;
+
+ if (ap->hsm_task_state == HSM_ST_LAST && ata_is_dma(qc->tf.protocol)) {
+ /* check status of DMA engine */
+ host_stat = ap->ops->bmdma_status(ap);
+ VPRINTK("ata%u: host_stat 0x%X\n", ap->print_id, host_stat);
+
+ /* if it's not our irq... */
+ if (!(host_stat & ATA_DMA_INTR))
+ return ata_sff_idle_irq(ap);
+
+ /* before we do anything else, clear DMA-Start bit */
+ ap->ops->bmdma_stop(qc);
+ bmdma_stopped = true;
+
+ if (unlikely(host_stat & ATA_DMA_ERR)) {
+ /* error when transfering data to/from memory */
+ qc->err_mask |= AC_ERR_HOST_BUS;
+ ap->hsm_task_state = HSM_ST_ERR;
+ }
+ }
+
+ handled = __ata_sff_port_intr(ap, qc, bmdma_stopped);
+
+ if (unlikely(qc->err_mask) && ata_is_dma(qc->tf.protocol))
+ ata_ehi_push_desc(ehi, "BMDMA stat 0x%x", host_stat);
+
+ return handled;
+}
+EXPORT_SYMBOL_GPL(ata_bmdma_port_intr);
+
+/**
+ * ata_bmdma_interrupt - Default BMDMA ATA host interrupt handler
+ * @irq: irq line (unused)
+ * @dev_instance: pointer to our ata_host information structure
+ *
+ * Default interrupt handler for PCI IDE devices. Calls
+ * ata_bmdma_port_intr() for each port that is not disabled.
+ *
+ * LOCKING:
+ * Obtains host lock during operation.
+ *
+ * RETURNS:
+ * IRQ_NONE or IRQ_HANDLED.
+ */
+irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance)
+{
+ return __ata_sff_interrupt(irq, dev_instance, ata_bmdma_port_intr);
+}
+EXPORT_SYMBOL_GPL(ata_bmdma_interrupt);
+
/**
* ata_bmdma_error_handler - Stock error handler for BMDMA controller
* @ap: port to handle error for
/* if we're gonna thaw, make sure IRQ is clear */
if (thaw) {
ap->ops->sff_check_status(ap);
- ap->ops->sff_irq_clear(ap);
+ if (ap->ops->sff_irq_clear)
+ ap->ops->sff_irq_clear(ap);
}
}
}
EXPORT_SYMBOL_GPL(ata_bmdma_post_internal_cmd);
+/**
+ * ata_bmdma_irq_clear - Clear PCI IDE BMDMA interrupt.
+ * @ap: Port associated with this ATA transaction.
+ *
+ * Clear interrupt and error flags in DMA status register.
+ *
+ * May be used as the irq_clear() entry in ata_port_operations.
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host lock)
+ */
+void ata_bmdma_irq_clear(struct ata_port *ap)
+{
+ void __iomem *mmio = ap->ioaddr.bmdma_addr;
+
+ if (!mmio)
+ return;
+
+ iowrite8(ioread8(mmio + ATA_DMA_STATUS), mmio + ATA_DMA_STATUS);
+}
+EXPORT_SYMBOL_GPL(ata_bmdma_irq_clear);
+
/**
* ata_bmdma_setup - Set up PCI IDE BMDMA transaction
* @qc: Info associated with this ATA transaction.
}
EXPORT_SYMBOL_GPL(ata_pci_bmdma_init);
+/**
+ * ata_pci_bmdma_prepare_host - helper to prepare PCI BMDMA ATA host
+ * @pdev: target PCI device
+ * @ppi: array of port_info, must be enough for two ports
+ * @r_host: out argument for the initialized ATA host
+ *
+ * Helper to allocate BMDMA ATA host for @pdev, acquire all PCI
+ * resources and initialize it accordingly in one go.
+ *
+ * LOCKING:
+ * Inherited from calling layer (may sleep).
+ *
+ * RETURNS:
+ * 0 on success, -errno otherwise.
+ */
+int ata_pci_bmdma_prepare_host(struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi,
+ struct ata_host **r_host)
+{
+ int rc;
+
+ rc = ata_pci_sff_prepare_host(pdev, ppi, r_host);
+ if (rc)
+ return rc;
+
+ ata_pci_bmdma_init(*r_host);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ata_pci_bmdma_prepare_host);
+
+/**
+ * ata_pci_bmdma_init_one - Initialize/register BMDMA PCI IDE controller
+ * @pdev: Controller to be initialized
+ * @ppi: array of port_info, must be enough for two ports
+ * @sht: scsi_host_template to use when registering the host
+ * @host_priv: host private_data
+ * @hflags: host flags
+ *
+ * This function is similar to ata_pci_sff_init_one() but also
+ * takes care of BMDMA initialization.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, negative on errno-based value on error.
+ */
+int ata_pci_bmdma_init_one(struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi,
+ struct scsi_host_template *sht, void *host_priv,
+ int hflags)
+{
+ struct device *dev = &pdev->dev;
+ const struct ata_port_info *pi;
+ struct ata_host *host = NULL;
+ int rc;
+
+ DPRINTK("ENTER\n");
+
+ pi = ata_sff_find_valid_pi(ppi);
+ if (!pi) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "no valid port_info specified\n");
+ return -EINVAL;
+ }
+
+ if (!devres_open_group(dev, NULL, GFP_KERNEL))
+ return -ENOMEM;
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ goto out;
+
+ /* prepare and activate BMDMA host */
+ rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
+ if (rc)
+ goto out;
+ host->private_data = host_priv;
+ host->flags |= hflags;
+
+ pci_set_master(pdev);
+ rc = ata_pci_sff_activate_host(host, ata_bmdma_interrupt, sht);
+ out:
+ if (rc == 0)
+ devres_remove_group(&pdev->dev, NULL);
+ else
+ devres_release_group(&pdev->dev, NULL);
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(ata_pci_bmdma_init_one);
+
#endif /* CONFIG_PCI */
+#endif /* CONFIG_ATA_BMDMA */
/**
* ata_sff_port_init - Initialize SFF/BMDMA ATA port
return rc;
pcim_pin_device(pdev);
}
- return ata_pci_sff_init_one(pdev, ppi, &pacpi_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &pacpi_sht, NULL, 0);
}
static const struct pci_device_id pacpi_pci_tbl[] = {
ppi[0] = &info_20_udma;
}
- return ata_pci_sff_init_one(pdev, ppi, &ali_sht, NULL, 0);
+ if (!ppi[0]->mwdma_mask && !ppi[0]->udma_mask)
+ return ata_pci_sff_init_one(pdev, ppi, &ali_sht, NULL, 0);
+ else
+ return ata_pci_bmdma_init_one(pdev, ppi, &ali_sht, NULL, 0);
}
#ifdef CONFIG_PM
}
/* And fire it up */
- return ata_pci_sff_init_one(pdev, ppi, &amd_sht, hpriv, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &amd_sht, hpriv, 0);
}
#ifdef CONFIG_PM
BUG_ON(ppi[0] == NULL);
- return ata_pci_sff_init_one(pdev, ppi, &artop_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &artop_sht, NULL, 0);
}
static const struct pci_device_id artop_pci_tbl[] = {
if (!pci_test_config_bits(pdev, &atiixp_enable_bits[i]))
ppi[i] = &ata_dummy_port_info;
- return ata_pci_sff_init_one(pdev, ppi, &atiixp_sht, NULL,
- ATA_HOST_PARALLEL_SCAN);
+ return ata_pci_bmdma_init_one(pdev, ppi, &atiixp_sht, NULL,
+ ATA_HOST_PARALLEL_SCAN);
}
static const struct pci_device_id atiixp[] = {
pci_set_master(pdev);
- rc = ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ rc = ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &atp867x_sht);
if (rc)
dev_printk(KERN_ERR, &pdev->dev, "failed to activate host\n");
* bfin_irq_clear - Clear ATAPI interrupt.
* @ap: Port associated with this ATA transaction.
*
- * Note: Original code is ata_sff_irq_clear().
+ * Note: Original code is ata_bmdma_irq_clear().
*/
static void bfin_irq_clear(struct ata_port *ap)
pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
#endif
- return ata_pci_sff_init_one(pdev, ppi, &cmd64x_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &cmd64x_sht, NULL, 0);
}
#ifdef CONFIG_PM
continue;
rc = devm_request_irq(&pdev->dev, irq[ap->port_no],
- ata_sff_interrupt, 0, DRV_NAME, host);
+ ata_bmdma_interrupt, 0, DRV_NAME, host);
if (rc)
return rc;
ppi[1] = &info_palmax_secondary;
/* Now kick off ATA set up */
- return ata_pci_sff_init_one(pdev, ppi, &cs5530_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &cs5530_sht, NULL, 0);
}
#ifdef CONFIG_PM
rdmsr(ATAC_CH0D1_PIO, timings, dummy);
if (CS5535_BAD_PIO(timings))
wrmsr(ATAC_CH0D1_PIO, 0xF7F4F7F4UL, 0);
- return ata_pci_sff_init_one(dev, ppi, &cs5535_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &cs5535_sht, NULL, 0);
}
static const struct pci_device_id cs5535[] = {
return -ENODEV;
}
- return ata_pci_sff_init_one(dev, ppi, &cs5536_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &cs5536_sht, NULL, 0);
}
static const struct pci_device_id cs5536[] = {
if (PCI_FUNC(pdev->devfn) != 1)
return -ENODEV;
- return ata_pci_sff_init_one(pdev, ppi, &cy82c693_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &cy82c693_sht, NULL, 0);
}
static const struct pci_device_id cy82c693[] = {
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
- return ata_pci_sff_init_one(pdev, ppi, &efar_sht, NULL,
- ATA_HOST_PARALLEL_SCAN);
+ return ata_pci_bmdma_init_one(pdev, ppi, &efar_sht, NULL,
+ ATA_HOST_PARALLEL_SCAN);
}
static const struct pci_device_id efar_pci_tbl[] = {
break;
}
/* Now kick off ATA set up */
- return ata_pci_sff_init_one(dev, ppi, &hpt36x_sht, hpriv, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &hpt36x_sht, hpriv, 0);
}
#ifdef CONFIG_PM
}
/* Now kick off ATA set up */
- return ata_pci_sff_init_one(dev, ppi, &hpt37x_sht, private_data, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &hpt37x_sht, private_data, 0);
}
static const struct pci_device_id hpt37x[] = {
outb(inb(iobase + 0x9c) | 0x04, iobase + 0x9c);
/* Now kick off ATA set up */
- return ata_pci_sff_init_one(dev, ppi, &hpt3x2n_sht, hpriv, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &hpt3x2n_sht, hpriv, 0);
}
static const struct pci_device_id hpt3x2n[] = {
ata_port_pbar_desc(ap, 4, offset_cmd[i], "cmd");
}
pci_set_master(pdev);
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &hpt3x3_sht);
}
pata_icside_setup_ioaddr(ap, info->base, info, info->port[i]);
}
- return ata_host_activate(host, ec->irq, ata_sff_interrupt, 0,
+ return ata_host_activate(host, ec->irq, ata_bmdma_interrupt, 0,
&pata_icside_sht);
}
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
- return ata_pci_sff_init_one(pdev, ppi, &it8213_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &it8213_sht, NULL, 0);
}
static const struct pci_device_id it8213_pci_tbl[] = {
else
ppi[0] = &info_smart;
}
- return ata_pci_sff_init_one(pdev, ppi, &it821x_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &it821x_sht, NULL, 0);
}
#ifdef CONFIG_PM
};
const struct ata_port_info *ppi[] = { &info, NULL };
- return ata_pci_sff_init_one(pdev, ppi, &jmicron_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &jmicron_sht, NULL, 0);
}
static const struct pci_device_id jmicron_pci_tbl[] = {
/* Start it up */
priv->irq = irq;
- return ata_host_activate(priv->host, irq, ata_sff_interrupt, 0,
+ return ata_host_activate(priv->host, irq, ata_bmdma_interrupt, 0,
&pata_macio_sht);
}
return -ENODEV;
}
#endif
- return ata_pci_sff_init_one(pdev, ppi, &marvell_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &marvell_sht, NULL, 0);
}
static const struct pci_device_id marvell_pci_tbl[] = {
ata_port_desc(ap, "ata_regs 0x%lx", raw_ata_regs);
/* activate host */
- return ata_host_activate(host, priv->ata_irq, ata_sff_interrupt, 0,
+ return ata_host_activate(host, priv->ata_irq, ata_bmdma_interrupt, 0,
&mpc52xx_ata_sht);
}
ata_pci_bmdma_clear_simplex(pdev);
/* And let the library code do the work */
- return ata_pci_sff_init_one(pdev, port_info, &netcell_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);
}
static const struct pci_device_id netcell_pci_tbl[] = {
ninja32_program(base);
/* FIXME: Should we disable them at remove ? */
- return ata_host_activate(host, dev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, dev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &ninja32_sht);
}
ns87415_fixup(pdev);
- return ata_pci_sff_init_one(pdev, ppi, &ns87415_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &ns87415_sht, NULL, 0);
}
static const struct pci_device_id ns87415_pci_tbl[] = {
dev->max_sectors = min(dev->max_sectors, 4095U);
}
-/*
- * Trap if driver tries to do standard bmdma commands. They are not
- * supported.
- */
-static void unreachable_qc(struct ata_queued_cmd *qc)
-{
- BUG();
-}
-
-static u8 unreachable_port(struct ata_port *ap)
-{
- BUG();
-}
-
/*
* We don't do ATAPI DMA so return 0.
*/
.sff_dev_select = octeon_cf_dev_select,
.sff_irq_on = octeon_cf_irq_on,
.sff_irq_clear = octeon_cf_irq_clear,
- .bmdma_setup = unreachable_qc,
- .bmdma_start = unreachable_qc,
- .bmdma_stop = unreachable_qc,
- .bmdma_status = unreachable_port,
.cable_detect = ata_cable_40wire,
.set_piomode = octeon_cf_set_piomode,
.set_dmamode = octeon_cf_set_dmamode,
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
- return ata_pci_sff_init_one(pdev, ppi, &oldpiix_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &oldpiix_sht, NULL, 0);
}
static const struct pci_device_id oldpiix_pci_tbl[] = {
if (optiplus_with_udma(dev))
ppi[0] = &info_82c700_udma;
- return ata_pci_sff_init_one(dev, ppi, &optidma_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &optidma_sht, NULL, 0);
}
static const struct pci_device_id optidma[] = {
return -EIO;
pci_set_master(pdev);
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &pdc2027x_sht);
}
return -ENODEV;
}
}
- return ata_pci_sff_init_one(dev, ppi, &pdc202xx_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &pdc202xx_sht, NULL, 0);
}
static const struct pci_device_id pdc202xx[] = {
};
const struct ata_port_info *ppi[] = { &info, &ata_dummy_port_info };
/* Just one port for the moment */
- return ata_pci_sff_init_one(dev, ppi, &tosh_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &tosh_sht, NULL, 0);
}
static struct pci_device_id ata_tosh[] = {
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
- return ata_pci_sff_init_one(pdev, ppi, &radisys_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &radisys_sht, NULL, 0);
}
static const struct pci_device_id radisys_pci_tbl[] = {
*/
pci_read_config_dword(pdev, 0x54, &hpriv->saved_iocfg);
- rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+ rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
host->private_data = hpriv;
host->flags |= ATA_HOST_PARALLEL_SCAN;
pci_set_master(pdev);
- return ata_pci_sff_activate_host(host, ata_sff_interrupt, &rdc_sht);
+ return ata_pci_sff_activate_host(host, ata_bmdma_interrupt, &rdc_sht);
}
static void rdc_remove_one(struct pci_dev *pdev)
};
const struct ata_port_info *ppi[] = { &info, NULL };
- return ata_pci_sff_init_one(dev, ppi, &sc1200_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &sc1200_sht, NULL, 0);
}
static const struct pci_device_id sc1200[] = {
* scc_irq_clear - Clear PCI IDE BMDMA interrupt.
* @ap: Port associated with this ATA transaction.
*
- * Note: Original code is ata_sff_irq_clear().
+ * Note: Original code is ata_bmdma_irq_clear().
*/
static void scc_irq_clear (struct ata_port *ap)
if (rc)
return rc;
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &scc_sht);
}
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
- return ata_pci_sff_init_one(pdev, ppi, &sch_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &sch_sht, NULL, 0);
}
static int __init sch_init(void)
if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
ata_pci_bmdma_clear_simplex(pdev);
- return ata_pci_sff_init_one(pdev, ppi, &serverworks_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &serverworks_sht, NULL, 0);
}
#ifdef CONFIG_PM
ata_sff_std_ports(&host->ports[1]->ioaddr);
/* Register & activate */
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &sil680_sht);
use_ioports:
- return ata_pci_sff_init_one(pdev, ppi, &sil680_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &sil680_sht, NULL, 0);
}
#ifdef CONFIG_PM
sis_fixup(pdev, chipset);
- return ata_pci_sff_init_one(pdev, ppi, &sis_sht, chipset, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &sis_sht, chipset, 0);
}
#ifdef CONFIG_PM
val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
pci_write_config_dword(dev, 0x40, val);
- return ata_pci_sff_init_one(dev, ppi, &sl82c105_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &sl82c105_sht, NULL, 0);
}
static const struct pci_device_id sl82c105[] = {
if (!printed_version++)
dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
- return ata_pci_sff_init_one(dev, ppi, &triflex_sht, NULL, 0);
+ return ata_pci_bmdma_init_one(dev, ppi, &triflex_sht, NULL, 0);
}
static const struct pci_device_id triflex[] = {
}
/* We have established the device type, now fire it up */
- return ata_pci_sff_init_one(pdev, ppi, &via_sht, (void *)config, 0);
+ return ata_pci_bmdma_init_one(pdev, ppi, &via_sht, (void *)config, 0);
}
#ifdef CONFIG_PM
.freeze = mv_eh_freeze,
.thaw = mv_eh_thaw,
.hardreset = mv_hardreset,
- .error_handler = ata_std_error_handler, /* avoid SFF EH */
- .post_internal_cmd = ATA_OP_NULL,
.scr_read = mv5_scr_read,
.scr_write = mv5_scr_write,
} else if (!edma_was_enabled) {
struct ata_queued_cmd *qc = mv_get_active_qc(ap);
if (qc)
- ata_sff_host_intr(ap, qc);
+ ata_bmdma_port_intr(ap, qc);
else
mv_unexpected_intr(ap, edma_was_enabled);
}
}
/* handle interrupt */
- return ata_sff_host_intr(ap, qc);
+ return ata_bmdma_port_intr(ap, qc);
}
static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
u32 notifier_clears[2];
if (pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE) {
- ata_sff_irq_clear(ap);
+ ata_bmdma_irq_clear(ap);
return;
}
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) {
- handled += ata_sff_host_intr(ap, qc);
+ handled += ata_bmdma_port_intr(ap, qc);
} else {
/*
* No request pending? Clear interrupt status
ppi[0] = &nv_port_info[type];
ipriv = ppi[0]->private_data;
- rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+ rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
static void qs_qc_prep(struct ata_queued_cmd *qc);
static unsigned int qs_qc_issue(struct ata_queued_cmd *qc);
static int qs_check_atapi_dma(struct ata_queued_cmd *qc);
-static void qs_bmdma_stop(struct ata_queued_cmd *qc);
-static u8 qs_bmdma_status(struct ata_port *ap);
static void qs_freeze(struct ata_port *ap);
static void qs_thaw(struct ata_port *ap);
static int qs_prereset(struct ata_link *link, unsigned long deadline);
.inherits = &ata_sff_port_ops,
.check_atapi_dma = qs_check_atapi_dma,
- .bmdma_stop = qs_bmdma_stop,
- .bmdma_status = qs_bmdma_status,
.qc_prep = qs_qc_prep,
.qc_issue = qs_qc_issue,
return 1; /* ATAPI DMA not supported */
}
-static void qs_bmdma_stop(struct ata_queued_cmd *qc)
-{
- /* nothing */
-}
-
-static u8 qs_bmdma_status(struct ata_port *ap)
-{
- return 0;
-}
-
static inline void qs_enter_reg_mode(struct ata_port *ap)
{
u8 __iomem *chan = qs_mmio_base(ap->host) + (ap->port_no * 0x4000);
if (!pp || pp->state != qs_state_mmio)
continue;
if (!(qc->tf.flags & ATA_TFLAG_POLLING))
- handled |= ata_sff_host_intr(ap, qc);
+ handled |= ata_sff_port_intr(ap, qc);
}
return handled;
}
goto err_hsm;
/* ack bmdma irq events */
- ata_sff_irq_clear(ap);
+ ata_bmdma_irq_clear(ap);
/* kick HSM in the ass */
ata_sff_hsm_move(ap, qc, status, 0);
/* clear IRQ */
ap->ops->sff_check_status(ap);
- ata_sff_irq_clear(ap);
+ ata_bmdma_irq_clear(ap);
/* turn on SATA IRQ if supported */
if (!(ap->flags & SIL_FLAG_NO_SATA_IRQ))
break;
}
- rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+ rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
pci_set_master(pdev);
pci_intx(pdev, 1);
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &sis_sht);
}
writel(0x0, mmio_base + K2_SATA_SIM_OFFSET);
pci_set_master(pdev);
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &k2_sata_sht);
}
pci_set_master(pdev);
pci_intx(pdev, 1);
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &uli_sht);
}
* certain way. Leave it alone and just clear pending IRQ.
*/
ap->ops->sff_check_status(ap);
- ata_sff_irq_clear(ap);
+ ata_bmdma_irq_clear(ap);
}
/**
struct ata_host *host;
int rc;
- rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+ rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
*r_host = host;
struct ata_host *host;
int i, rc;
- rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+ rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
*r_host = host;
svia_configure(pdev);
pci_set_master(pdev);
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &svia_sht);
}
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && likely(!(qc->tf.flags & ATA_TFLAG_POLLING)))
- handled = ata_sff_host_intr(ap, qc);
+ handled = ata_bmdma_port_intr(ap, qc);
/* We received an interrupt during a polled command,
* or some other spurious condition. Interrupt reporting
return ps3flash_writeback(ps3flash_dev);
}
-static int ps3flash_fsync(struct file *file, struct dentry *dentry,
- int datasync)
+static int ps3flash_fsync(struct file *file, int datasync)
{
return ps3flash_writeback(ps3flash_dev);
}
return new_offset;
}
-static int vol_cdev_fsync(struct file *file, struct dentry *dentry,
- int datasync)
+static int vol_cdev_fsync(struct file *file, int datasync)
{
struct ubi_volume_desc *desc = file->private_data;
struct ubi_device *ubi = desc->vol->ubi;
void __iomem *shmem;
if (dev == NULL) {
- pr_err("%s: net_interrupt(): irq %d for unknown device.\n",
- dev->name, irq);
+ pr_err("net_interrupt(): irq %d for unknown device.\n", irq);
return IRQ_NONE;
}
} else {
return 0;
}
- } while (timeout < 20);
+ } while (timeout < 40);
dev_err(&adapter->pdev->dev, "POST timeout; stage=0x%x\n", stage);
return -1;
goto if_destroy;
}
vf++;
- } while (vf < num_vfs);
+ }
} else if (!be_physfn(adapter)) {
status = be_cmd_mac_addr_query(adapter, mac,
MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle);
static void cnic_init_context(struct cnic_dev *dev, u32 cid)
{
- struct cnic_local *cp = dev->cnic_priv;
u32 cid_addr;
int i;
- if (CHIP_NUM(cp) == CHIP_NUM_5709)
- return;
-
cid_addr = GET_CID_ADDR(cid);
for (i = 0; i < CTX_SIZE; i += 4)
sb_id = cp->status_blk_num;
tx_cid = 20;
- cnic_init_context(dev, tx_cid);
- cnic_init_context(dev, tx_cid + 1);
cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
struct status_block_msix *sblk = cp->status_blk.bnx2;
tx_cid = TX_TSS_CID + sb_id - 1;
- cnic_init_context(dev, tx_cid);
CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
(TX_TSS_CID << 7));
cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
} else {
+ cnic_init_context(dev, tx_cid);
+ cnic_init_context(dev, tx_cid + 1);
+
offset0 = BNX2_L2CTX_TYPE;
offset1 = BNX2_L2CTX_CMD_TYPE;
offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
#ifndef CNIC_IF_H
#define CNIC_IF_H
-#define CNIC_MODULE_VERSION "2.1.1"
-#define CNIC_MODULE_RELDATE "Feb 22, 2010"
+#define CNIC_MODULE_VERSION "2.1.2"
+#define CNIC_MODULE_RELDATE "May 26, 2010"
#define CNIC_ULP_RDMA 0
#define CNIC_ULP_ISCSI 1
struct phy_device *phy_dev = NULL;
int phy_addr;
+ fep->phy_dev = NULL;
+
/* find the first phy */
for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
if (fep->mii_bus->phy_map[phy_addr]) {
fep->link = 0;
fep->full_duplex = 0;
+ printk(KERN_INFO "%s: Freescale FEC PHY driver [%s] "
+ "(mii_bus:phy_addr=%s, irq=%d)\n", dev->name,
+ fep->phy_dev->drv->name, dev_name(&fep->phy_dev->dev),
+ fep->phy_dev->irq);
+
return 0;
}
if (mdiobus_register(fep->mii_bus))
goto err_out_free_mdio_irq;
- if (fec_enet_mii_probe(dev) != 0)
- goto err_out_unregister_bus;
-
return 0;
-err_out_unregister_bus:
- mdiobus_unregister(fep->mii_bus);
err_out_free_mdio_irq:
kfree(fep->mii_bus->irq);
err_out_free_mdiobus:
if (ret)
return ret;
- /* schedule a link state check */
+ /* Probe and connect to PHY when open the interface */
+ ret = fec_enet_mii_probe(dev);
+ if (ret) {
+ fec_enet_free_buffers(dev);
+ return ret;
+ }
phy_start(fep->phy_dev);
netif_start_queue(dev);
fep->opened = 1;
/* Don't know what to do yet. */
fep->opened = 0;
- phy_stop(fep->phy_dev);
netif_stop_queue(dev);
fec_stop(dev);
+ if (fep->phy_dev)
+ phy_disconnect(fep->phy_dev);
+
fec_enet_free_buffers(dev);
return 0;
if (ret)
goto failed_register;
- printk(KERN_INFO "%s: Freescale FEC PHY driver [%s] "
- "(mii_bus:phy_addr=%s, irq=%d)\n", ndev->name,
- fep->phy_dev->drv->name, dev_name(&fep->phy_dev->dev),
- fep->phy_dev->irq);
-
return 0;
failed_register:
dev = alloc_netdev(sizeof(struct yam_port), name,
yam_setup);
if (!dev) {
- printk(KERN_ERR "yam: cannot allocate net device %s\n",
- dev->name);
+ pr_err("yam: cannot allocate net device\n");
err = -ENOMEM;
goto error;
}
#define MULTICAST_CAM_TABLE_NUM 4
+/* TEMAC Synthesis features */
+#define TEMAC_FEATURE_RX_CSUM (1 << 0)
+#define TEMAC_FEATURE_TX_CSUM (1 << 1)
+
/* TX/RX CURDESC_PTR points to first descriptor */
/* TX/RX TAILDESC_PTR points to last descriptor in linked list */
struct mutex indirect_mutex;
u32 options; /* Current options word */
int last_link;
+ unsigned int temac_features;
/* Buffer descriptors */
struct cdmac_bd *tx_bd_v;
CHNL_CTRL_IRQ_COAL_EN);
/* 0x10220483 */
/* 0x00100483 */
- lp->dma_out(lp, RX_CHNL_CTRL, 0xff010000 |
+ lp->dma_out(lp, RX_CHNL_CTRL, 0xff070000 |
CHNL_CTRL_IRQ_EN |
CHNL_CTRL_IRQ_DLY_EN |
CHNL_CTRL_IRQ_COAL_EN |
if (cur_p->app4)
dev_kfree_skb_irq((struct sk_buff *)cur_p->app4);
cur_p->app0 = 0;
+ cur_p->app1 = 0;
+ cur_p->app2 = 0;
+ cur_p->app3 = 0;
+ cur_p->app4 = 0;
ndev->stats.tx_packets++;
ndev->stats.tx_bytes += cur_p->len;
netif_wake_queue(ndev);
}
+static inline int temac_check_tx_bd_space(struct temac_local *lp, int num_frag)
+{
+ struct cdmac_bd *cur_p;
+ int tail;
+
+ tail = lp->tx_bd_tail;
+ cur_p = &lp->tx_bd_v[tail];
+
+ do {
+ if (cur_p->app0)
+ return NETDEV_TX_BUSY;
+
+ tail++;
+ if (tail >= TX_BD_NUM)
+ tail = 0;
+
+ cur_p = &lp->tx_bd_v[tail];
+ num_frag--;
+ } while (num_frag >= 0);
+
+ return 0;
+}
+
static int temac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
{
struct temac_local *lp = netdev_priv(ndev);
start_p = lp->tx_bd_p + sizeof(*lp->tx_bd_v) * lp->tx_bd_tail;
cur_p = &lp->tx_bd_v[lp->tx_bd_tail];
- if (cur_p->app0 & STS_CTRL_APP0_CMPLT) {
+ if (temac_check_tx_bd_space(lp, num_frag)) {
if (!netif_queue_stopped(ndev)) {
netif_stop_queue(ndev);
return NETDEV_TX_BUSY;
cur_p->app0 = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- const struct iphdr *ip = ip_hdr(skb);
- int length = 0, start = 0, insert = 0;
-
- switch (ip->protocol) {
- case IPPROTO_TCP:
- start = sizeof(struct iphdr) + ETH_HLEN;
- insert = sizeof(struct iphdr) + ETH_HLEN + 16;
- length = ip->tot_len - sizeof(struct iphdr);
- break;
- case IPPROTO_UDP:
- start = sizeof(struct iphdr) + ETH_HLEN;
- insert = sizeof(struct iphdr) + ETH_HLEN + 6;
- length = ip->tot_len - sizeof(struct iphdr);
- break;
- default:
- break;
- }
- cur_p->app1 = ((start << 16) | insert);
- cur_p->app2 = csum_tcpudp_magic(ip->saddr, ip->daddr,
- length, ip->protocol, 0);
- skb->data[insert] = 0;
- skb->data[insert + 1] = 0;
+ unsigned int csum_start_off = skb_transport_offset(skb);
+ unsigned int csum_index_off = csum_start_off + skb->csum_offset;
+
+ cur_p->app0 |= 1; /* TX Checksum Enabled */
+ cur_p->app1 = (csum_start_off << 16) | csum_index_off;
+ cur_p->app2 = 0; /* initial checksum seed */
}
+
cur_p->app0 |= STS_CTRL_APP0_SOP;
cur_p->len = skb_headlen(skb);
cur_p->phys = dma_map_single(ndev->dev.parent, skb->data, skb->len,
skb->protocol = eth_type_trans(skb, ndev);
skb->ip_summed = CHECKSUM_NONE;
+ /* if we're doing rx csum offload, set it up */
+ if (((lp->temac_features & TEMAC_FEATURE_RX_CSUM) != 0) &&
+ (skb->protocol == __constant_htons(ETH_P_IP)) &&
+ (skb->len > 64)) {
+
+ skb->csum = cur_p->app3 & 0xFFFF;
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ }
+
netif_rx(skb);
ndev->stats.rx_packets++;
struct temac_local *lp;
struct net_device *ndev;
const void *addr;
+ __be32 *p;
int size, rc = 0;
/* Init network device structure */
goto nodev;
}
+ /* Setup checksum offload, but default to off if not specified */
+ lp->temac_features = 0;
+ p = (__be32 *)of_get_property(op->dev.of_node, "xlnx,txcsum", NULL);
+ if (p && be32_to_cpu(*p)) {
+ lp->temac_features |= TEMAC_FEATURE_TX_CSUM;
+ /* Can checksum TCP/UDP over IPv4. */
+ ndev->features |= NETIF_F_IP_CSUM;
+ }
+ p = (__be32 *)of_get_property(op->dev.of_node, "xlnx,rxcsum", NULL);
+ if (p && be32_to_cpu(*p))
+ lp->temac_features |= TEMAC_FEATURE_RX_CSUM;
+
/* Find the DMA node, map the DMA registers, and decode the DMA IRQs */
np = of_parse_phandle(op->dev.of_node, "llink-connected", 0);
if (!np) {
lp->rx_irq = irq_of_parse_and_map(np, 0);
lp->tx_irq = irq_of_parse_and_map(np, 1);
- if (!lp->rx_irq || !lp->tx_irq) {
+ if ((lp->rx_irq == NO_IRQ) || (lp->tx_irq == NO_IRQ)) {
dev_err(&op->dev, "could not determine irqs\n");
rc = -ENOMEM;
goto nodev;
/*
* We want fsync() to work on POHMELFS.
*/
-static int pohmelfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+static int pohmelfs_fsync(struct file *file, int datasync)
{
struct inode *inode = file->f_mapping->host;
struct writeback_control wbc = {
}
static int
-printer_fsync(struct file *fd, struct dentry *dentry, int datasync)
+printer_fsync(struct file *fd, int datasync)
{
struct printer_dev *dev = fd->private_data;
unsigned long flags;
int r;
switch (ioctl) {
case VHOST_NET_SET_BACKEND:
- r = copy_from_user(&backend, argp, sizeof backend);
- if (r < 0)
- return r;
+ if (copy_from_user(&backend, argp, sizeof backend))
+ return -EFAULT;
return vhost_net_set_backend(n, backend.index, backend.fd);
case VHOST_GET_FEATURES:
features = VHOST_FEATURES;
- return copy_to_user(featurep, &features, sizeof features);
+ if (copy_to_user(featurep, &features, sizeof features))
+ return -EFAULT;
+ return 0;
case VHOST_SET_FEATURES:
- r = copy_from_user(&features, featurep, sizeof features);
- if (r < 0)
- return r;
+ if (copy_from_user(&features, featurep, sizeof features))
+ return -EFAULT;
if (features & ~VHOST_FEATURES)
return -EOPNOTSUPP;
return vhost_net_set_features(n, features);
{
struct vhost_memory mem, *newmem, *oldmem;
unsigned long size = offsetof(struct vhost_memory, regions);
- long r;
- r = copy_from_user(&mem, m, size);
- if (r)
- return r;
+ if (copy_from_user(&mem, m, size))
+ return -EFAULT;
if (mem.padding)
return -EOPNOTSUPP;
if (mem.nregions > VHOST_MEMORY_MAX_NREGIONS)
return -ENOMEM;
memcpy(newmem, &mem, size);
- r = copy_from_user(newmem->regions, m->regions,
- mem.nregions * sizeof *m->regions);
- if (r) {
+ if (copy_from_user(newmem->regions, m->regions,
+ mem.nregions * sizeof *m->regions)) {
kfree(newmem);
- return r;
+ return -EFAULT;
}
- if (!memory_access_ok(d, newmem, vhost_has_feature(d, VHOST_F_LOG_ALL)))
+ if (!memory_access_ok(d, newmem, vhost_has_feature(d, VHOST_F_LOG_ALL))) {
+ kfree(newmem);
return -EFAULT;
+ }
oldmem = d->memory;
rcu_assign_pointer(d->memory, newmem);
synchronize_rcu();
r = get_user(idx, idxp);
if (r < 0)
return r;
- if (idx > d->nvqs)
+ if (idx >= d->nvqs)
return -ENOBUFS;
vq = d->vqs + idx;
r = -EBUSY;
break;
}
- r = copy_from_user(&s, argp, sizeof s);
- if (r < 0)
+ if (copy_from_user(&s, argp, sizeof s)) {
+ r = -EFAULT;
break;
+ }
if (!s.num || s.num > 0xffff || (s.num & (s.num - 1))) {
r = -EINVAL;
break;
r = -EBUSY;
break;
}
- r = copy_from_user(&s, argp, sizeof s);
- if (r < 0)
+ if (copy_from_user(&s, argp, sizeof s)) {
+ r = -EFAULT;
break;
+ }
if (s.num > 0xffff) {
r = -EINVAL;
break;
case VHOST_GET_VRING_BASE:
s.index = idx;
s.num = vq->last_avail_idx;
- r = copy_to_user(argp, &s, sizeof s);
+ if (copy_to_user(argp, &s, sizeof s))
+ r = -EFAULT;
break;
case VHOST_SET_VRING_ADDR:
- r = copy_from_user(&a, argp, sizeof a);
- if (r < 0)
+ if (copy_from_user(&a, argp, sizeof a)) {
+ r = -EFAULT;
break;
+ }
if (a.flags & ~(0x1 << VHOST_VRING_F_LOG)) {
r = -EOPNOTSUPP;
break;
vq->used = (void __user *)(unsigned long)a.used_user_addr;
break;
case VHOST_SET_VRING_KICK:
- r = copy_from_user(&f, argp, sizeof f);
- if (r < 0)
+ if (copy_from_user(&f, argp, sizeof f)) {
+ r = -EFAULT;
break;
+ }
eventfp = f.fd == -1 ? NULL : eventfd_fget(f.fd);
if (IS_ERR(eventfp)) {
r = PTR_ERR(eventfp);
filep = eventfp;
break;
case VHOST_SET_VRING_CALL:
- r = copy_from_user(&f, argp, sizeof f);
- if (r < 0)
+ if (copy_from_user(&f, argp, sizeof f)) {
+ r = -EFAULT;
break;
+ }
eventfp = f.fd == -1 ? NULL : eventfd_fget(f.fd);
if (IS_ERR(eventfp)) {
r = PTR_ERR(eventfp);
filep = eventfp;
break;
case VHOST_SET_VRING_ERR:
- r = copy_from_user(&f, argp, sizeof f);
- if (r < 0)
+ if (copy_from_user(&f, argp, sizeof f)) {
+ r = -EFAULT;
break;
+ }
eventfp = f.fd == -1 ? NULL : eventfd_fget(f.fd);
if (IS_ERR(eventfp)) {
r = PTR_ERR(eventfp);
r = vhost_set_memory(d, argp);
break;
case VHOST_SET_LOG_BASE:
- r = copy_from_user(&p, argp, sizeof p);
- if (r < 0)
+ if (copy_from_user(&p, argp, sizeof p)) {
+ r = -EFAULT;
break;
+ }
if ((u64)(unsigned long)p != p) {
r = -EFAULT;
break;
return 0;
}
-int fb_deferred_io_fsync(struct file *file, struct dentry *dentry, int datasync)
+int fb_deferred_io_fsync(struct file *file, int datasync)
{
struct fb_info *info = file->private_data;
return total;
}
-static int v9fs_file_fsync(struct file *filp, struct dentry *dentry,
- int datasync)
+static int v9fs_file_fsync(struct file *filp, int datasync)
{
struct p9_fid *fid;
struct p9_wstat wstat;
int retval;
- P9_DPRINTK(P9_DEBUG_VFS, "filp %p dentry %p datasync %x\n", filp,
- dentry, datasync);
+ P9_DPRINTK(P9_DEBUG_VFS, "filp %p datasync %x\n", filp, datasync);
fid = filp->private_data;
v9fs_blank_wstat(&wstat);
.read = generic_read_dir,
.llseek = generic_file_llseek,
.readdir = adfs_readdir,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
};
static int
.read = do_sync_read,
.aio_read = generic_file_aio_read,
.mmap = generic_file_mmap,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
.write = do_sync_write,
.aio_write = generic_file_aio_write,
.splice_read = generic_file_splice_read,
if (error)
goto out;
+ /* XXX: this is missing some actual on-disk truncation.. */
if (ia_valid & ATTR_SIZE)
- error = vmtruncate(inode, attr->ia_size);
+ error = simple_setsize(inode, attr->ia_size);
if (error)
goto out;
void affs_free_prealloc(struct inode *inode);
extern void affs_truncate(struct inode *);
-int affs_file_fsync(struct file *, struct dentry *, int);
+int affs_file_fsync(struct file *, int);
/* dir.c */
affs_free_prealloc(inode);
}
-int affs_file_fsync(struct file *filp, struct dentry *dentry, int datasync)
+int affs_file_fsync(struct file *filp, int datasync)
{
- struct inode * inode = dentry->d_inode;
+ struct inode *inode = filp->f_mapping->host;
int ret, err;
ret = write_inode_now(inode, 0);
extern ssize_t afs_file_write(struct kiocb *, const struct iovec *,
unsigned long, loff_t);
extern int afs_writeback_all(struct afs_vnode *);
-extern int afs_fsync(struct file *, struct dentry *, int);
+extern int afs_fsync(struct file *, int);
/*****************************************************************************/
* - the return status from this call provides a reliable indication of
* whether any write errors occurred for this process.
*/
-int afs_fsync(struct file *file, struct dentry *dentry, int datasync)
+int afs_fsync(struct file *file, int datasync)
{
+ struct dentry *dentry = file->f_path.dentry;
struct afs_writeback *wb, *xwb;
struct afs_vnode *vnode = AFS_FS_I(dentry->d_inode);
int ret;
/* Complete the fput(s) */
if (req->ki_filp != NULL)
- __fput(req->ki_filp);
+ fput(req->ki_filp);
/* Link the iocb into the context's free list */
spin_lock_irq(&ctx->ctx_lock);
/*
* Try to optimize the aio and eventfd file* puts, by avoiding to
- * schedule work in case it is not __fput() time. In normal cases,
+ * schedule work in case it is not final fput() time. In normal cases,
* we would not be holding the last reference to the file*, so
* this function will be executed w/out any aio kthread wakeup.
*/
- if (unlikely(atomic_long_dec_and_test(&req->ki_filp->f_count))) {
+ if (unlikely(!fput_atomic(req->ki_filp))) {
get_ioctx(ctx);
spin_lock(&fput_lock);
list_add(&req->ki_list, &fput_head);
* that it already _is_ on the dirty list.
*/
inode->i_state = I_DIRTY;
- inode->i_mode = S_IFREG | S_IRUSR | S_IWUSR;
+ inode->i_mode = S_IRUSR | S_IWUSR;
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();
inode->i_flags |= S_PRIVATE;
* @offset: the new size to assign to the inode
* @Returns: 0 on success, -ve errno on failure
*
+ * inode_newsize_ok must be called with i_mutex held.
+ *
* inode_newsize_ok will check filesystem limits and ulimits to check that the
* new inode size is within limits. inode_newsize_ok will also send SIGXFSZ
* when necessary. Caller must not proceed with inode size change if failure is
* returned. @inode must be a file (not directory), with appropriate
* permissions to allow truncate (inode_newsize_ok does NOT check these
* conditions).
- *
- * inode_newsize_ok must be called with i_mutex held.
*/
int inode_newsize_ok(const struct inode *inode, loff_t offset)
{
}
EXPORT_SYMBOL(inode_newsize_ok);
-int inode_setattr(struct inode * inode, struct iattr * attr)
+/**
+ * generic_setattr - copy simple metadata updates into the generic inode
+ * @inode: the inode to be updated
+ * @attr: the new attributes
+ *
+ * generic_setattr must be called with i_mutex held.
+ *
+ * generic_setattr updates the inode's metadata with that specified
+ * in attr. Noticably missing is inode size update, which is more complex
+ * as it requires pagecache updates. See simple_setsize.
+ *
+ * The inode is not marked as dirty after this operation. The rationale is
+ * that for "simple" filesystems, the struct inode is the inode storage.
+ * The caller is free to mark the inode dirty afterwards if needed.
+ */
+void generic_setattr(struct inode *inode, const struct iattr *attr)
{
unsigned int ia_valid = attr->ia_valid;
- if (ia_valid & ATTR_SIZE &&
- attr->ia_size != i_size_read(inode)) {
- int error = vmtruncate(inode, attr->ia_size);
- if (error)
- return error;
- }
-
if (ia_valid & ATTR_UID)
inode->i_uid = attr->ia_uid;
if (ia_valid & ATTR_GID)
mode &= ~S_ISGID;
inode->i_mode = mode;
}
+}
+EXPORT_SYMBOL(generic_setattr);
+
+/*
+ * note this function is deprecated, the new truncate sequence should be
+ * used instead -- see eg. simple_setsize, generic_setattr.
+ */
+int inode_setattr(struct inode *inode, const struct iattr *attr)
+{
+ unsigned int ia_valid = attr->ia_valid;
+
+ if (ia_valid & ATTR_SIZE &&
+ attr->ia_size != i_size_read(inode)) {
+ int error;
+
+ error = vmtruncate(inode, attr->ia_size);
+ if (error)
+ return error;
+ }
+
+ generic_setattr(inode, attr);
+
mark_inode_dirty(inode);
return 0;
return -EIO;
}
-static int bad_file_fsync(struct file *file, struct dentry *dentry,
- int datasync)
+static int bad_file_fsync(struct file *file, int datasync)
{
return -EIO;
}
const struct file_operations bfs_dir_operations = {
.read = generic_read_dir,
.readdir = bfs_readdir,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
.llseek = generic_file_llseek,
};
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
- return blockdev_direct_IO_no_locking(rw, iocb, inode, I_BDEV(inode),
- iov, offset, nr_segs, blkdev_get_blocks, NULL);
+ return blockdev_direct_IO_no_locking_newtrunc(rw, iocb, inode,
+ I_BDEV(inode), iov, offset, nr_segs,
+ blkdev_get_blocks, NULL);
}
int __sync_blockdev(struct block_device *bdev, int wait)
struct page **pagep, void **fsdata)
{
*pagep = NULL;
- return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
- blkdev_get_block);
+ return block_write_begin_newtrunc(file, mapping, pos, len, flags,
+ pagep, fsdata, blkdev_get_block);
}
static int blkdev_write_end(struct file *file, struct address_space *mapping,
return retval;
}
-/*
- * Filp is never NULL; the only case when ->fsync() is called with
- * NULL first argument is nfsd_sync_dir() and that's not a directory.
- */
-
-int blkdev_fsync(struct file *filp, struct dentry *dentry, int datasync)
+int blkdev_fsync(struct file *filp, int datasync)
{
struct inode *bd_inode = filp->f_mapping->host;
struct block_device *bdev = I_BDEV(bd_inode);
void btrfs_inherit_iflags(struct inode *inode, struct inode *dir);
/* file.c */
-int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync);
+int btrfs_sync_file(struct file *file, int datasync);
int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
int skip_pinned);
int btrfs_check_file(struct btrfs_root *root, struct inode *inode);
* important optimization for directories because holding the mutex prevents
* new operations on the dir while we write to disk.
*/
-int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync)
+int btrfs_sync_file(struct file *file, int datasync)
{
+ struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret = 0;
}
/*
- * block_write_begin takes care of the basic task of block allocation and
- * bringing partial write blocks uptodate first.
- *
- * If *pagep is not NULL, then block_write_begin uses the locked page
- * at *pagep rather than allocating its own. In this case, the page will
- * not be unlocked or deallocated on failure.
+ * Filesystems implementing the new truncate sequence should use the
+ * _newtrunc postfix variant which won't incorrectly call vmtruncate.
+ * The filesystem needs to handle block truncation upon failure.
*/
-int block_write_begin(struct file *file, struct address_space *mapping,
+int block_write_begin_newtrunc(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata,
get_block_t *get_block)
unlock_page(page);
page_cache_release(page);
*pagep = NULL;
-
- /*
- * prepare_write() may have instantiated a few blocks
- * outside i_size. Trim these off again. Don't need
- * i_size_read because we hold i_mutex.
- */
- if (pos + len > inode->i_size)
- vmtruncate(inode, inode->i_size);
}
}
out:
return status;
}
+EXPORT_SYMBOL(block_write_begin_newtrunc);
+
+/*
+ * block_write_begin takes care of the basic task of block allocation and
+ * bringing partial write blocks uptodate first.
+ *
+ * If *pagep is not NULL, then block_write_begin uses the locked page
+ * at *pagep rather than allocating its own. In this case, the page will
+ * not be unlocked or deallocated on failure.
+ */
+int block_write_begin(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata,
+ get_block_t *get_block)
+{
+ int ret;
+
+ ret = block_write_begin_newtrunc(file, mapping, pos, len, flags,
+ pagep, fsdata, get_block);
+
+ /*
+ * prepare_write() may have instantiated a few blocks
+ * outside i_size. Trim these off again. Don't need
+ * i_size_read because we hold i_mutex.
+ *
+ * Filesystems which pass down their own page also cannot
+ * call into vmtruncate here because it would lead to lock
+ * inversion problems (*pagep is locked). This is a further
+ * example of where the old truncate sequence is inadequate.
+ */
+ if (unlikely(ret) && *pagep == NULL) {
+ loff_t isize = mapping->host->i_size;
+ if (pos + len > isize)
+ vmtruncate(mapping->host, isize);
+ }
+
+ return ret;
+}
EXPORT_SYMBOL(block_write_begin);
int block_write_end(struct file *file, struct address_space *mapping,
* For moronic filesystems that do not allow holes in file.
* We may have to extend the file.
*/
-int cont_write_begin(struct file *file, struct address_space *mapping,
+int cont_write_begin_newtrunc(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata,
get_block_t *get_block, loff_t *bytes)
}
*pagep = NULL;
- err = block_write_begin(file, mapping, pos, len,
+ err = block_write_begin_newtrunc(file, mapping, pos, len,
flags, pagep, fsdata, get_block);
out:
return err;
}
+EXPORT_SYMBOL(cont_write_begin_newtrunc);
+
+int cont_write_begin(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata,
+ get_block_t *get_block, loff_t *bytes)
+{
+ int ret;
+
+ ret = cont_write_begin_newtrunc(file, mapping, pos, len, flags,
+ pagep, fsdata, get_block, bytes);
+ if (unlikely(ret)) {
+ loff_t isize = mapping->host->i_size;
+ if (pos + len > isize)
+ vmtruncate(mapping->host, isize);
+ }
+
+ return ret;
+}
EXPORT_SYMBOL(cont_write_begin);
int block_prepare_write(struct page *page, unsigned from, unsigned to,
*
* We are not allowed to take the i_mutex here so we have to play games to
* protect against truncate races as the page could now be beyond EOF. Because
- * vmtruncate() writes the inode size before removing pages, once we have the
+ * truncate writes the inode size before removing pages, once we have the
* page lock we can determine safely if the page is beyond EOF. If it is not
* beyond EOF, then the page is guaranteed safe against truncation until we
* unlock the page.
}
/*
- * On entry, the page is fully not uptodate.
- * On exit the page is fully uptodate in the areas outside (from,to)
+ * Filesystems implementing the new truncate sequence should use the
+ * _newtrunc postfix variant which won't incorrectly call vmtruncate.
+ * The filesystem needs to handle block truncation upon failure.
*/
-int nobh_write_begin(struct file *file, struct address_space *mapping,
+int nobh_write_begin_newtrunc(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata,
get_block_t *get_block)
unlock_page(page);
page_cache_release(page);
*pagep = NULL;
- return block_write_begin(file, mapping, pos, len, flags, pagep,
- fsdata, get_block);
+ return block_write_begin_newtrunc(file, mapping, pos, len,
+ flags, pagep, fsdata, get_block);
}
if (PageMappedToDisk(page))
page_cache_release(page);
*pagep = NULL;
- if (pos + len > inode->i_size)
- vmtruncate(inode, inode->i_size);
+ return ret;
+}
+EXPORT_SYMBOL(nobh_write_begin_newtrunc);
+
+/*
+ * On entry, the page is fully not uptodate.
+ * On exit the page is fully uptodate in the areas outside (from,to)
+ */
+int nobh_write_begin(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata,
+ get_block_t *get_block)
+{
+ int ret;
+
+ ret = nobh_write_begin_newtrunc(file, mapping, pos, len, flags,
+ pagep, fsdata, get_block);
+
+ /*
+ * prepare_write() may have instantiated a few blocks
+ * outside i_size. Trim these off again. Don't need
+ * i_size_read because we hold i_mutex.
+ */
+ if (unlikely(ret)) {
+ loff_t isize = mapping->host->i_size;
+ if (pos + len > isize)
+ vmtruncate(mapping->host, isize);
+ }
return ret;
}
spin_unlock(&ci->i_unsafe_lock);
}
-int ceph_fsync(struct file *file, struct dentry *dentry, int datasync)
+int ceph_fsync(struct file *file, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_mapping->host;
struct ceph_inode_info *ci = ceph_inode(inode);
unsigned flush_tid;
int ret;
* an fsync() on a dir will wait for any uncommitted directory
* operations to commit.
*/
-static int ceph_dir_fsync(struct file *file, struct dentry *dentry,
- int datasync)
+static int ceph_dir_fsync(struct file *file, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_path.dentry->d_inode;
struct ceph_inode_info *ci = ceph_inode(inode);
struct list_head *head = &ci->i_unsafe_dirops;
struct ceph_mds_request *req;
extern void ceph_queue_caps_release(struct inode *inode);
extern int ceph_write_inode(struct inode *inode, struct writeback_control *wbc);
-extern int ceph_fsync(struct file *file, struct dentry *dentry, int datasync);
+extern int ceph_fsync(struct file *file, int datasync);
extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session);
extern int ceph_get_cap_mds(struct inode *inode);
extern ssize_t cifs_user_write(struct file *file, const char __user *write_data,
size_t write_size, loff_t *poffset);
extern int cifs_lock(struct file *, int, struct file_lock *);
-extern int cifs_fsync(struct file *, struct dentry *, int);
+extern int cifs_fsync(struct file *, int);
extern int cifs_flush(struct file *, fl_owner_t id);
extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
extern const struct file_operations cifs_dir_ops;
return rc;
}
-int cifs_fsync(struct file *file, struct dentry *dentry, int datasync)
+int cifs_fsync(struct file *file, int datasync)
{
int xid;
int rc = 0;
xid = GetXid();
cFYI(1, "Sync file - name: %s datasync: 0x%x",
- dentry->d_name.name, datasync);
+ file->f_path.dentry->d_name.name, datasync);
rc = filemap_write_and_wait(inode->i_mapping);
if (rc == 0) {
void coda_destroy_inodecache(void);
int coda_init_inodecache(void);
-int coda_fsync(struct file *coda_file, struct dentry *coda_dentry,
- int datasync);
+int coda_fsync(struct file *coda_file, int datasync);
void coda_sysctl_init(void);
void coda_sysctl_clean(void);
return 0;
}
-int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync)
+int coda_fsync(struct file *coda_file, int datasync)
{
struct file *host_file;
- struct inode *coda_inode = coda_dentry->d_inode;
+ struct inode *coda_inode = coda_file->f_path.dentry->d_inode;
struct coda_file_info *cfi;
int err = 0;
if (!sd)
return -EINVAL;
- sd_iattr = sd->s_iattr;
-
- error = inode_change_ok(inode, iattr);
- if (error)
- return error;
-
- error = inode_setattr(inode, iattr);
+ error = simple_setattr(dentry, iattr);
if (error)
return error;
+ sd_iattr = sd->s_iattr;
if (!sd_iattr) {
/* setting attributes for the first time, allocate now */
sd_iattr = kzalloc(sizeof(struct iattr), GFP_KERNEL);
return ret;
}
-/*
- * This is a library function for use by filesystem drivers.
- *
- * The locking rules are governed by the flags parameter:
- * - if the flags value contains DIO_LOCKING we use a fancy locking
- * scheme for dumb filesystems.
- * For writes this function is called under i_mutex and returns with
- * i_mutex held, for reads, i_mutex is not held on entry, but it is
- * taken and dropped again before returning.
- * For reads and writes i_alloc_sem is taken in shared mode and released
- * on I/O completion (which may happen asynchronously after returning to
- * the caller).
- *
- * - if the flags value does NOT contain DIO_LOCKING we don't use any
- * internal locking but rather rely on the filesystem to synchronize
- * direct I/O reads/writes versus each other and truncate.
- * For reads and writes both i_mutex and i_alloc_sem are not held on
- * entry and are never taken.
- */
ssize_t
-__blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
+__blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb, struct inode *inode,
struct block_device *bdev, const struct iovec *iov, loff_t offset,
unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
dio_submit_t submit_io, int flags)
nr_segs, blkbits, get_block, end_io,
submit_io, dio);
+out:
+ return retval;
+}
+EXPORT_SYMBOL(__blockdev_direct_IO_newtrunc);
+
+/*
+ * This is a library function for use by filesystem drivers.
+ *
+ * The locking rules are governed by the flags parameter:
+ * - if the flags value contains DIO_LOCKING we use a fancy locking
+ * scheme for dumb filesystems.
+ * For writes this function is called under i_mutex and returns with
+ * i_mutex held, for reads, i_mutex is not held on entry, but it is
+ * taken and dropped again before returning.
+ * For reads and writes i_alloc_sem is taken in shared mode and released
+ * on I/O completion (which may happen asynchronously after returning to
+ * the caller).
+ *
+ * - if the flags value does NOT contain DIO_LOCKING we don't use any
+ * internal locking but rather rely on the filesystem to synchronize
+ * direct I/O reads/writes versus each other and truncate.
+ * For reads and writes both i_mutex and i_alloc_sem are not held on
+ * entry and are never taken.
+ */
+ssize_t
+__blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
+ struct block_device *bdev, const struct iovec *iov, loff_t offset,
+ unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
+ dio_submit_t submit_io, int flags)
+{
+ ssize_t retval;
+
+ retval = __blockdev_direct_IO_newtrunc(rw, iocb, inode, bdev, iov,
+ offset, nr_segs, get_block, end_io, submit_io, flags);
/*
* In case of error extending write may have instantiated a few
* blocks outside i_size. Trim these off again for DIO_LOCKING.
+ * NOTE: DIO_NO_LOCK/DIO_OWN_LOCK callers have to handle this in
+ * their own manner. This is a further example of where the old
+ * truncate sequence is inadequate.
*
* NOTE: filesystems with their own locking have to handle this
* on their own.
if (flags & DIO_LOCKING) {
if (unlikely((rw & WRITE) && retval < 0)) {
loff_t isize = i_size_read(inode);
+ loff_t end = offset + iov_length(iov, nr_segs);
+
if (end > isize)
vmtruncate(inode, isize);
}
}
-out:
return retval;
}
EXPORT_SYMBOL(__blockdev_direct_IO);
}
static int
-ecryptfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+ecryptfs_fsync(struct file *file, int datasync)
{
return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
}
- (ia->ia_size & ~PAGE_CACHE_MASK));
if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
- rc = vmtruncate(inode, ia->ia_size);
+ rc = simple_setsize(inode, ia->ia_size);
if (rc)
goto out;
lower_ia->ia_size = ia->ia_size;
goto out;
}
}
- vmtruncate(inode, ia->ia_size);
+ simple_setsize(inode, ia->ia_size);
rc = ecryptfs_write_inode_size_to_metadata(inode);
if (rc) {
printk(KERN_ERR "Problem with "
return 0;
}
-static int exofs_file_fsync(struct file *filp, struct dentry *dentry,
- int datasync)
+static int exofs_file_fsync(struct file *filp, int datasync)
{
int ret;
struct address_space *mapping = filp->f_mapping;
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = mapping->host;
struct super_block *sb;
ret = filemap_write_and_wait(mapping);
static int exofs_flush(struct file *file, fl_owner_t id)
{
- exofs_file_fsync(file, file->f_path.dentry, 1);
+ exofs_file_fsync(file, 1);
/* TODO: Flush the OSD target */
return 0;
}
extern void ext2_delete_inode (struct inode *);
extern int ext2_sync_inode (struct inode *);
extern int ext2_get_block(struct inode *, sector_t, struct buffer_head *, int);
-extern void ext2_truncate (struct inode *);
extern int ext2_setattr (struct dentry *, struct iattr *);
extern void ext2_set_inode_flags(struct inode *inode);
extern void ext2_get_inode_flags(struct ext2_inode_info *);
extern const struct file_operations ext2_dir_operations;
/* file.c */
-extern int ext2_fsync(struct file *file, struct dentry *dentry, int datasync);
+extern int ext2_fsync(struct file *file, int datasync);
extern const struct inode_operations ext2_file_inode_operations;
extern const struct file_operations ext2_file_operations;
extern const struct file_operations ext2_xip_file_operations;
return 0;
}
-int ext2_fsync(struct file *file, struct dentry *dentry, int datasync)
+int ext2_fsync(struct file *file, int datasync)
{
int ret;
- struct super_block *sb = dentry->d_inode->i_sb;
+ struct super_block *sb = file->f_mapping->host->i_sb;
struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping;
- ret = simple_fsync(file, dentry, datasync);
+ ret = generic_file_fsync(file, datasync);
if (ret == -EIO || test_and_clear_bit(AS_EIO, &mapping->flags)) {
/* We don't really know where the IO error happened... */
ext2_error(sb, __func__,
#endif
const struct inode_operations ext2_file_inode_operations = {
- .truncate = ext2_truncate,
#ifdef CONFIG_EXT2_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
inode->i_blocks - ea_blocks == 0);
}
+static void ext2_truncate_blocks(struct inode *inode, loff_t offset);
+
+static void ext2_write_failed(struct address_space *mapping, loff_t to)
+{
+ struct inode *inode = mapping->host;
+
+ if (to > inode->i_size) {
+ truncate_pagecache(inode, to, inode->i_size);
+ ext2_truncate_blocks(inode, inode->i_size);
+ }
+}
+
/*
* Called at the last iput() if i_nlink is zero.
*/
inode->i_size = 0;
if (inode->i_blocks)
- ext2_truncate (inode);
+ ext2_truncate_blocks(inode, 0);
ext2_free_inode (inode);
return;
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
{
- return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
- ext2_get_block);
+ return block_write_begin_newtrunc(file, mapping, pos, len, flags,
+ pagep, fsdata, ext2_get_block);
}
static int
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
{
+ int ret;
+
*pagep = NULL;
- return __ext2_write_begin(file, mapping, pos, len, flags, pagep,fsdata);
+ ret = __ext2_write_begin(file, mapping, pos, len, flags, pagep, fsdata);
+ if (ret < 0)
+ ext2_write_failed(mapping, pos + len);
+ return ret;
+}
+
+static int ext2_write_end(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata)
+{
+ int ret;
+
+ ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
+ if (ret < len)
+ ext2_write_failed(mapping, pos + len);
+ return ret;
}
static int
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
{
+ int ret;
+
/*
* Dir-in-pagecache still uses ext2_write_begin. Would have to rework
* directory handling code to pass around offsets rather than struct
* pages in order to make this work easily.
*/
- return nobh_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
- ext2_get_block);
+ ret = nobh_write_begin_newtrunc(file, mapping, pos, len, flags, pagep,
+ fsdata, ext2_get_block);
+ if (ret < 0)
+ ext2_write_failed(mapping, pos + len);
+ return ret;
}
static int ext2_nobh_writepage(struct page *page,
loff_t offset, unsigned long nr_segs)
{
struct file *file = iocb->ki_filp;
- struct inode *inode = file->f_mapping->host;
-
- return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
- offset, nr_segs, ext2_get_block, NULL);
+ struct address_space *mapping = file->f_mapping;
+ struct inode *inode = mapping->host;
+ ssize_t ret;
+
+ ret = blockdev_direct_IO_newtrunc(rw, iocb, inode, inode->i_sb->s_bdev,
+ iov, offset, nr_segs, ext2_get_block, NULL);
+ if (ret < 0 && (rw & WRITE))
+ ext2_write_failed(mapping, offset + iov_length(iov, nr_segs));
+ return ret;
}
static int
.writepage = ext2_writepage,
.sync_page = block_sync_page,
.write_begin = ext2_write_begin,
- .write_end = generic_write_end,
+ .write_end = ext2_write_end,
.bmap = ext2_bmap,
.direct_IO = ext2_direct_IO,
.writepages = ext2_writepages,
ext2_free_data(inode, p, q);
}
-void ext2_truncate(struct inode *inode)
+static void __ext2_truncate_blocks(struct inode *inode, loff_t offset)
{
__le32 *i_data = EXT2_I(inode)->i_data;
struct ext2_inode_info *ei = EXT2_I(inode);
int n;
long iblock;
unsigned blocksize;
-
- if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
- S_ISLNK(inode->i_mode)))
- return;
- if (ext2_inode_is_fast_symlink(inode))
- return;
- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
- return;
-
blocksize = inode->i_sb->s_blocksize;
- iblock = (inode->i_size + blocksize-1)
- >> EXT2_BLOCK_SIZE_BITS(inode->i_sb);
-
- if (mapping_is_xip(inode->i_mapping))
- xip_truncate_page(inode->i_mapping, inode->i_size);
- else if (test_opt(inode->i_sb, NOBH))
- nobh_truncate_page(inode->i_mapping,
- inode->i_size, ext2_get_block);
- else
- block_truncate_page(inode->i_mapping,
- inode->i_size, ext2_get_block);
+ iblock = (offset + blocksize-1) >> EXT2_BLOCK_SIZE_BITS(inode->i_sb);
n = ext2_block_to_path(inode, iblock, offsets, NULL);
if (n == 0)
ext2_discard_reservation(inode);
mutex_unlock(&ei->truncate_mutex);
+}
+
+static void ext2_truncate_blocks(struct inode *inode, loff_t offset)
+{
+ /*
+ * XXX: it seems like a bug here that we don't allow
+ * IS_APPEND inode to have blocks-past-i_size trimmed off.
+ * review and fix this.
+ *
+ * Also would be nice to be able to handle IO errors and such,
+ * but that's probably too much to ask.
+ */
+ if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+ S_ISLNK(inode->i_mode)))
+ return;
+ if (ext2_inode_is_fast_symlink(inode))
+ return;
+ if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+ return;
+ __ext2_truncate_blocks(inode, offset);
+}
+
+int ext2_setsize(struct inode *inode, loff_t newsize)
+{
+ loff_t oldsize;
+ int error;
+
+ error = inode_newsize_ok(inode, newsize);
+ if (error)
+ return error;
+
+ if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+ S_ISLNK(inode->i_mode)))
+ return -EINVAL;
+ if (ext2_inode_is_fast_symlink(inode))
+ return -EINVAL;
+ if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+ return -EPERM;
+
+ if (mapping_is_xip(inode->i_mapping))
+ error = xip_truncate_page(inode->i_mapping, newsize);
+ else if (test_opt(inode->i_sb, NOBH))
+ error = nobh_truncate_page(inode->i_mapping,
+ newsize, ext2_get_block);
+ else
+ error = block_truncate_page(inode->i_mapping,
+ newsize, ext2_get_block);
+ if (error)
+ return error;
+
+ oldsize = inode->i_size;
+ i_size_write(inode, newsize);
+ truncate_pagecache(inode, oldsize, newsize);
+
+ __ext2_truncate_blocks(inode, newsize);
+
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
if (inode_needs_sync(inode)) {
sync_mapping_buffers(inode->i_mapping);
} else {
mark_inode_dirty(inode);
}
+
+ return 0;
}
static struct ext2_inode *ext2_get_inode(struct super_block *sb, ino_t ino,
if (error)
return error;
}
- error = inode_setattr(inode, iattr);
- if (!error && (iattr->ia_valid & ATTR_MODE))
+ if (iattr->ia_valid & ATTR_SIZE) {
+ error = ext2_setsize(inode, iattr->ia_size);
+ if (error)
+ return error;
+ }
+ generic_setattr(inode, iattr);
+ if (iattr->ia_valid & ATTR_MODE)
error = ext2_acl_chmod(inode);
+ mark_inode_dirty(inode);
+
return error;
}
* inode to disk.
*/
-int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync)
+int ext3_sync_file(struct file *file, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_mapping->host;
struct ext3_inode_info *ei = EXT3_I(inode);
journal_t *journal = EXT3_SB(inode->i_sb)->s_journal;
int ret, needs_barrier = 0;
extern void ext4_htree_free_dir_info(struct dir_private_info *p);
/* fsync.c */
-extern int ext4_sync_file(struct file *, struct dentry *, int);
+extern int ext4_sync_file(struct file *, int);
/* hash.c */
extern int ext4fs_dirhash(const char *name, int len, struct
* i_mutex lock is held when entering and exiting this function
*/
-int ext4_sync_file(struct file *file, struct dentry *dentry, int datasync)
+int ext4_sync_file(struct file *file, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_mapping->host;
struct ext4_inode_info *ei = EXT4_I(inode);
journal_t *journal = EXT4_SB(inode->i_sb)->s_journal;
int ret;
J_ASSERT(ext4_journal_current_handle() == NULL);
- trace_ext4_sync_file(file, dentry, datasync);
+ trace_ext4_sync_file(file, datasync);
if (inode->i_sb->s_flags & MS_RDONLY)
return 0;
return ret;
if (!journal) {
- ret = simple_fsync(file, dentry, datasync);
+ ret = generic_file_fsync(file, datasync);
if (!ret && !list_empty(&inode->i_dentry))
ext4_sync_parent(inode);
return ret;
extern const struct file_operations fat_file_operations;
extern const struct inode_operations fat_file_inode_operations;
extern int fat_setattr(struct dentry * dentry, struct iattr * attr);
-extern void fat_truncate(struct inode *inode);
+extern int fat_setsize(struct inode *inode, loff_t offset);
+extern void fat_truncate_blocks(struct inode *inode, loff_t offset);
extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat);
-extern int fat_file_fsync(struct file *file, struct dentry *dentry,
- int datasync);
+extern int fat_file_fsync(struct file *file, int datasync);
/* fat/inode.c */
extern void fat_attach(struct inode *inode, loff_t i_pos);
return 0;
}
-int fat_file_fsync(struct file *filp, struct dentry *dentry, int datasync)
+int fat_file_fsync(struct file *filp, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = filp->f_mapping->host;
int res, err;
- res = simple_fsync(filp, dentry, datasync);
+ res = generic_file_fsync(filp, datasync);
err = sync_mapping_buffers(MSDOS_SB(inode->i_sb)->fat_inode->i_mapping);
return res ? res : err;
return fat_free_clusters(inode, free_start);
}
-void fat_truncate(struct inode *inode)
+void fat_truncate_blocks(struct inode *inode, loff_t offset)
{
struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
const unsigned int cluster_size = sbi->cluster_size;
* This protects against truncating a file bigger than it was then
* trying to write into the hole.
*/
- if (MSDOS_I(inode)->mmu_private > inode->i_size)
- MSDOS_I(inode)->mmu_private = inode->i_size;
+ if (MSDOS_I(inode)->mmu_private > offset)
+ MSDOS_I(inode)->mmu_private = offset;
- nr_clusters = (inode->i_size + (cluster_size - 1)) >> sbi->cluster_bits;
+ nr_clusters = (offset + (cluster_size - 1)) >> sbi->cluster_bits;
fat_free(inode, nr_clusters);
fat_flush_inodes(inode->i_sb, inode, NULL);
return 0;
}
+int fat_setsize(struct inode *inode, loff_t offset)
+{
+ int error;
+
+ error = simple_setsize(inode, offset);
+ if (error)
+ return error;
+ fat_truncate_blocks(inode, offset);
+
+ return error;
+}
+
#define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
/* valid file mode bits */
#define FAT_VALID_MODE (S_IFREG | S_IFDIR | S_IRWXUGO)
/*
* Expand the file. Since inode_setattr() updates ->i_size
* before calling the ->truncate(), but FAT needs to fill the
- * hole before it.
+ * hole before it. XXX: this is no longer true with new truncate
+ * sequence.
*/
if (attr->ia_valid & ATTR_SIZE) {
if (attr->ia_size > inode->i_size) {
attr->ia_valid &= ~ATTR_MODE;
}
- if (attr->ia_valid)
- error = inode_setattr(inode, attr);
+ if (attr->ia_valid & ATTR_SIZE) {
+ error = fat_setsize(inode, attr->ia_size);
+ if (error)
+ goto out;
+ }
+
+ generic_setattr(inode, attr);
+ mark_inode_dirty(inode);
out:
return error;
}
EXPORT_SYMBOL_GPL(fat_setattr);
const struct inode_operations fat_file_inode_operations = {
- .truncate = fat_truncate,
.setattr = fat_setattr,
.getattr = fat_getattr,
};
return mpage_readpages(mapping, pages, nr_pages, fat_get_block);
}
+static void fat_write_failed(struct address_space *mapping, loff_t to)
+{
+ struct inode *inode = mapping->host;
+
+ if (to > inode->i_size) {
+ truncate_pagecache(inode, to, inode->i_size);
+ fat_truncate_blocks(inode, inode->i_size);
+ }
+}
+
static int fat_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
{
+ int err;
+
*pagep = NULL;
- return cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
- fat_get_block,
+ err = cont_write_begin_newtrunc(file, mapping, pos, len, flags,
+ pagep, fsdata, fat_get_block,
&MSDOS_I(mapping->host)->mmu_private);
+ if (err < 0)
+ fat_write_failed(mapping, pos + len);
+ return err;
}
static int fat_write_end(struct file *file, struct address_space *mapping,
struct inode *inode = mapping->host;
int err;
err = generic_write_end(file, mapping, pos, len, copied, pagep, fsdata);
+ if (err < len)
+ fat_write_failed(mapping, pos + len);
if (!(err < 0) && !(MSDOS_I(inode)->i_attrs & ATTR_ARCH)) {
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
MSDOS_I(inode)->i_attrs |= ATTR_ARCH;
loff_t offset, unsigned long nr_segs)
{
struct file *file = iocb->ki_filp;
- struct inode *inode = file->f_mapping->host;
+ struct address_space *mapping = file->f_mapping;
+ struct inode *inode = mapping->host;
+ ssize_t ret;
if (rw == WRITE) {
/*
* FAT need to use the DIO_LOCKING for avoiding the race
* condition of fat_get_block() and ->truncate().
*/
- return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
- offset, nr_segs, fat_get_block, NULL);
+ ret = blockdev_direct_IO_newtrunc(rw, iocb, inode, inode->i_sb->s_bdev,
+ iov, offset, nr_segs, fat_get_block, NULL);
+ if (ret < 0 && (rw & WRITE))
+ fat_write_failed(mapping, offset + iov_length(iov, nr_segs));
+
+ return ret;
}
static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
{
truncate_inode_pages(&inode->i_data, 0);
inode->i_size = 0;
- fat_truncate(inode);
+ fat_truncate_blocks(inode, 0);
clear_inode(inode);
}
}
EXPORT_SYMBOL(alloc_file);
-void fput(struct file *file)
-{
- if (atomic_long_dec_and_test(&file->f_count))
- __fput(file);
-}
-
-EXPORT_SYMBOL(fput);
-
/**
* drop_file_write_access - give up ability to write to a file
* @file: the file to which we will stop writing
}
EXPORT_SYMBOL_GPL(drop_file_write_access);
-/* __fput is called from task context when aio completion releases the last
- * last use of a struct file *. Do not use otherwise.
+/* the real guts of fput() - releasing the last reference to file
*/
-void __fput(struct file *file)
+static void __fput(struct file *file)
{
struct dentry *dentry = file->f_path.dentry;
struct vfsmount *mnt = file->f_path.mnt;
mntput(mnt);
}
+void fput(struct file *file)
+{
+ if (atomic_long_dec_and_test(&file->f_count))
+ __fput(file);
+}
+
+EXPORT_SYMBOL(fput);
+
struct file *fget(unsigned int fd)
{
struct file *file;
return 0;
}
-static int fuse_dir_fsync(struct file *file, struct dentry *de, int datasync)
+static int fuse_dir_fsync(struct file *file, int datasync)
{
- /* nfsd can call this with no file */
- return file ? fuse_fsync_common(file, de, datasync, 1) : 0;
+ return fuse_fsync_common(file, datasync, 1);
}
static bool update_mtime(unsigned ivalid)
fuse_release_nowrite(inode);
}
-int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
- int isdir)
+int fuse_fsync_common(struct file *file, int datasync, int isdir)
{
- struct inode *inode = de->d_inode;
+ struct inode *inode = file->f_mapping->host;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_file *ff = file->private_data;
struct fuse_req *req;
return err;
}
-static int fuse_fsync(struct file *file, struct dentry *de, int datasync)
+static int fuse_fsync(struct file *file, int datasync)
{
- return fuse_fsync_common(file, de, datasync, 0);
+ return fuse_fsync_common(file, datasync, 0);
}
void fuse_read_fill(struct fuse_req *req, struct file *file, loff_t pos,
/**
* Send FSYNC or FSYNCDIR request
*/
-int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
- int isdir);
+int fuse_fsync_common(struct file *file, int datasync, int isdir);
/**
* Notify poll wakeup
return 0;
page_cache_release(page);
+
+ /*
+ * XXX(hch): the call below should probably be replaced with
+ * a call to the gfs2-specific truncate blocks helper to actually
+ * release disk blocks..
+ */
if (pos + len > ip->i_inode.i_size)
- vmtruncate(&ip->i_inode, ip->i_inode.i_size);
+ simple_setsize(&ip->i_inode, ip->i_inode.i_size);
out_endtrans:
gfs2_trans_end(sdp);
out_trans_fail:
* Returns: errno
*/
-static int gfs2_fsync(struct file *file, struct dentry *dentry, int datasync)
+static int gfs2_fsync(struct file *file, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_mapping->host;
int sync_state = inode->i_state & (I_DIRTY_SYNC|I_DIRTY_DATASYNC);
int ret = 0;
return error;
}
+/*
+ * XXX: should be changed to have proper ordering by opencoding simple_setsize
+ */
static int setattr_size(struct inode *inode, struct iattr *attr)
{
struct gfs2_inode *ip = GFS2_I(inode);
error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
if (error)
return error;
- error = vmtruncate(inode, attr->ia_size);
+ error = simple_setsize(inode, attr->ia_size);
gfs2_trans_end(sdp);
if (error)
return error;
return 0;
}
-int hostfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+int hostfs_fsync(struct file *file, int datasync)
{
- return fsync_file(HOSTFS_I(dentry->d_inode)->fd, datasync);
+ return fsync_file(HOSTFS_I(file->f_mapping->host)->fd, datasync);
}
static const struct file_operations hostfs_file_fops = {
return 0;
}
-int hpfs_file_fsync(struct file *file, struct dentry *dentry, int datasync)
+int hpfs_file_fsync(struct file *file, int datasync)
{
- /*return file_fsync(file, dentry);*/
+ /*return file_fsync(file, datasync);*/
return 0; /* Don't fsync :-) */
}
/* file.c */
-int hpfs_file_fsync(struct file *, struct dentry *, int);
+int hpfs_file_fsync(struct file *, int);
extern const struct file_operations hpfs_file_ops;
extern const struct inode_operations hpfs_file_iops;
extern const struct address_space_operations hpfs_aops;
return err;
}
-static int hppfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+static int hppfs_fsync(struct file *file, int datasync)
{
return 0;
}
const struct file_operations hugetlbfs_file_operations = {
.read = hugetlbfs_read,
.mmap = hugetlbfs_file_mmap,
- .fsync = simple_sync_file,
+ .fsync = noop_fsync,
.get_unmapped_area = hugetlb_get_unmapped_area,
};
struct page **pagep, void **fsdata);
static int jffs2_readpage (struct file *filp, struct page *pg);
-int jffs2_fsync(struct file *filp, struct dentry *dentry, int datasync)
+int jffs2_fsync(struct file *filp, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = filp->f_mapping->host;
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
/* Trigger GC to flush any pending writes for this inode */
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
- /* We have to do the vmtruncate() without f->sem held, since
+ /* We have to do the simple_setsize() without f->sem held, since
some pages may be locked and waiting for it in readpage().
We are protected from a simultaneous write() extending i_size
back past iattr->ia_size, because do_truncate() holds the
generic inode semaphore. */
if (ivalid & ATTR_SIZE && inode->i_size > iattr->ia_size) {
- vmtruncate(inode, iattr->ia_size);
+ simple_setsize(inode, iattr->ia_size);
inode->i_blocks = (inode->i_size + 511) >> 9;
}
extern const struct file_operations jffs2_file_operations;
extern const struct inode_operations jffs2_file_inode_operations;
extern const struct address_space_operations jffs2_file_address_operations;
-int jffs2_fsync(struct file *, struct dentry *, int);
+int jffs2_fsync(struct file *, int);
int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
/* ioctl.c */
#include "jfs_acl.h"
#include "jfs_debug.h"
-int jfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+int jfs_fsync(struct file *file, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_mapping->host;
int rc = 0;
if (!(inode->i_state & I_DIRTY) ||
struct fid;
extern struct inode *ialloc(struct inode *, umode_t);
-extern int jfs_fsync(struct file *, struct dentry *, int);
+extern int jfs_fsync(struct file *, int);
extern long jfs_ioctl(struct file *, unsigned int, unsigned long);
extern long jfs_compat_ioctl(struct file *, unsigned int, unsigned long);
extern struct inode *jfs_iget(struct super_block *, unsigned long);
#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/vfs.h>
+#include <linux/quotaops.h>
#include <linux/mutex.h>
#include <linux/exportfs.h>
#include <linux/writeback.h>
return NULL;
}
-int simple_sync_file(struct file * file, struct dentry *dentry, int datasync)
-{
- return 0;
-}
-
int dcache_dir_open(struct inode *inode, struct file *file)
{
static struct qstr cursor_name = {.len = 1, .name = "."};
.llseek = dcache_dir_lseek,
.read = generic_read_dir,
.readdir = dcache_readdir,
- .fsync = simple_sync_file,
+ .fsync = noop_fsync,
};
const struct inode_operations simple_dir_inode_operations = {
return 0;
}
+/**
+ * simple_setsize - handle core mm and vfs requirements for file size change
+ * @inode: inode
+ * @newsize: new file size
+ *
+ * Returns 0 on success, -error on failure.
+ *
+ * simple_setsize must be called with inode_mutex held.
+ *
+ * simple_setsize will check that the requested new size is OK (see
+ * inode_newsize_ok), and then will perform the necessary i_size update
+ * and pagecache truncation (if necessary). It will be typically be called
+ * from the filesystem's setattr function when ATTR_SIZE is passed in.
+ *
+ * The inode itself must have correct permissions and attributes to allow
+ * i_size to be changed, this function then just checks that the new size
+ * requested is valid.
+ *
+ * In the case of simple in-memory filesystems with inodes stored solely
+ * in the inode cache, and file data in the pagecache, nothing more needs
+ * to be done to satisfy a truncate request. Filesystems with on-disk
+ * blocks for example will need to free them in the case of truncate, in
+ * that case it may be easier not to use simple_setsize (but each of its
+ * components will likely be required at some point to update pagecache
+ * and inode etc).
+ */
+int simple_setsize(struct inode *inode, loff_t newsize)
+{
+ loff_t oldsize;
+ int error;
+
+ error = inode_newsize_ok(inode, newsize);
+ if (error)
+ return error;
+
+ oldsize = inode->i_size;
+ i_size_write(inode, newsize);
+ truncate_pagecache(inode, oldsize, newsize);
+
+ return error;
+}
+EXPORT_SYMBOL(simple_setsize);
+
+/**
+ * simple_setattr - setattr for simple in-memory filesystem
+ * @dentry: dentry
+ * @iattr: iattr structure
+ *
+ * Returns 0 on success, -error on failure.
+ *
+ * simple_setattr implements setattr for an in-memory filesystem which
+ * does not store its own file data or metadata (eg. uses the page cache
+ * and inode cache as its data store).
+ */
+int simple_setattr(struct dentry *dentry, struct iattr *iattr)
+{
+ struct inode *inode = dentry->d_inode;
+ int error;
+
+ error = inode_change_ok(inode, iattr);
+ if (error)
+ return error;
+
+ if (iattr->ia_valid & ATTR_SIZE) {
+ error = simple_setsize(inode, iattr->ia_size);
+ if (error)
+ return error;
+ }
+
+ generic_setattr(inode, iattr);
+
+ return error;
+}
+EXPORT_SYMBOL(simple_setattr);
+
int simple_readpage(struct file *file, struct page *page)
{
clear_highpage(page);
}
EXPORT_SYMBOL_GPL(generic_fh_to_parent);
-int simple_fsync(struct file *file, struct dentry *dentry, int datasync)
+/**
+ * generic_file_fsync - generic fsync implementation for simple filesystems
+ * @file: file to synchronize
+ * @datasync: only synchronize essential metadata if true
+ *
+ * This is a generic implementation of the fsync method for simple
+ * filesystems which track all non-inode metadata in the buffers list
+ * hanging off the address_space structure.
+ */
+int generic_file_fsync(struct file *file, int datasync)
{
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.nr_to_write = 0, /* metadata-only; caller takes care of data */
};
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_mapping->host;
int err;
int ret;
ret = err;
return ret;
}
-EXPORT_SYMBOL(simple_fsync);
+EXPORT_SYMBOL(generic_file_fsync);
+
+/*
+ * No-op implementation of ->fsync for in-memory filesystems.
+ */
+int noop_fsync(struct file *file, int datasync)
+{
+ return 0;
+}
EXPORT_SYMBOL(dcache_dir_close);
EXPORT_SYMBOL(dcache_dir_lseek);
EXPORT_SYMBOL(simple_rename);
EXPORT_SYMBOL(simple_rmdir);
EXPORT_SYMBOL(simple_statfs);
-EXPORT_SYMBOL(simple_sync_file);
+EXPORT_SYMBOL(noop_fsync);
EXPORT_SYMBOL(simple_unlink);
EXPORT_SYMBOL(simple_read_from_buffer);
EXPORT_SYMBOL(simple_write_to_buffer);
}
}
-int logfs_fsync(struct file *file, struct dentry *dentry, int datasync)
+int logfs_fsync(struct file *file, int datasync)
{
- struct super_block *sb = dentry->d_inode->i_sb;
+ struct super_block *sb = file->f_mapping->host->i_sb;
logfs_write_anchor(sb);
return 0;
int logfs_readpage(struct file *file, struct page *page);
int logfs_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg);
-int logfs_fsync(struct file *file, struct dentry *dentry, int datasync);
+int logfs_fsync(struct file *file, int datasync);
/* gc.c */
u32 get_best_cand(struct super_block *sb, struct candidate_list *list, u32 *ec);
.llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = minix_readdir,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
};
static inline void dir_put_page(struct page *page)
{
struct address_space *mapping = dir->i_mapping;
struct page *page = read_mapping_page(mapping, n, NULL);
- if (!IS_ERR(page)) {
+ if (!IS_ERR(page))
kmap(page);
- if (!PageUptodate(page))
- goto fail;
- }
return page;
fail:
.write = do_sync_write,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
.splice_read = generic_file_splice_read,
};
return (block_t *)minix_i(inode)->u.i2_data;
}
+#define DIRCOUNT 7
+#define INDIRCOUNT(sb) (1 << ((sb)->s_blocksize_bits - 2))
+
static int block_to_path(struct inode * inode, long block, int offsets[DEPTH])
{
int n = 0;
printk("MINIX-fs: block_to_path: "
"block %ld too big on dev %s\n",
block, bdevname(sb->s_bdev, b));
- } else if (block < 7) {
+ } else if (block < DIRCOUNT) {
offsets[n++] = block;
- } else if ((block -= 7) < 256) {
- offsets[n++] = 7;
+ } else if ((block -= DIRCOUNT) < INDIRCOUNT(sb)) {
+ offsets[n++] = DIRCOUNT;
offsets[n++] = block;
- } else if ((block -= 256) < 256*256) {
- offsets[n++] = 8;
- offsets[n++] = block>>8;
- offsets[n++] = block & 255;
+ } else if ((block -= INDIRCOUNT(sb)) < INDIRCOUNT(sb) * INDIRCOUNT(sb)) {
+ offsets[n++] = DIRCOUNT + 1;
+ offsets[n++] = block / INDIRCOUNT(sb);
+ offsets[n++] = block % INDIRCOUNT(sb);
} else {
- block -= 256*256;
- offsets[n++] = 9;
- offsets[n++] = block>>16;
- offsets[n++] = (block>>8) & 255;
- offsets[n++] = block & 255;
+ block -= INDIRCOUNT(sb) * INDIRCOUNT(sb);
+ offsets[n++] = DIRCOUNT + 2;
+ offsets[n++] = (block / INDIRCOUNT(sb)) / INDIRCOUNT(sb);
+ offsets[n++] = (block / INDIRCOUNT(sb)) % INDIRCOUNT(sb);
+ offsets[n++] = block % INDIRCOUNT(sb);
}
return n;
}
case LAST_DOTDOT:
follow_dotdot(nd);
dir = nd->path.dentry;
+ case LAST_DOT:
if (nd->path.mnt->mnt_sb->s_type->fs_flags & FS_REVAL_DOT) {
if (!dir->d_op->d_revalidate(dir, nd)) {
error = -ESTALE;
}
}
/* fallthrough */
- case LAST_DOT:
case LAST_ROOT:
if (open_flag & O_CREAT)
goto exit;
#include <linux/ncp_fs.h>
#include "ncplib_kernel.h"
-static int ncp_fsync(struct file *file, struct dentry *dentry, int datasync)
+static int ncp_fsync(struct file *file, int datasync)
{
return 0;
}
static int nfs_mknod(struct inode *, struct dentry *, int, dev_t);
static int nfs_rename(struct inode *, struct dentry *,
struct inode *, struct dentry *);
-static int nfs_fsync_dir(struct file *, struct dentry *, int);
+static int nfs_fsync_dir(struct file *, int);
static loff_t nfs_llseek_dir(struct file *, loff_t, int);
const struct file_operations nfs_dir_operations = {
* All directory operations under NFS are synchronous, so fsync()
* is a dummy operation.
*/
-static int nfs_fsync_dir(struct file *filp, struct dentry *dentry, int datasync)
+static int nfs_fsync_dir(struct file *filp, int datasync)
{
+ struct dentry *dentry = filp->f_path.dentry;
+
dfprintk(FILE, "NFS: fsync dir(%s/%s) datasync %d\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
datasync);
static ssize_t nfs_file_write(struct kiocb *, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
static int nfs_file_flush(struct file *, fl_owner_t id);
-static int nfs_file_fsync(struct file *, struct dentry *dentry, int datasync);
+static int nfs_file_fsync(struct file *, int datasync);
static int nfs_check_flags(int flags);
static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl);
static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl);
* whether any write errors occurred for this process.
*/
static int
-nfs_file_fsync(struct file *file, struct dentry *dentry, int datasync)
+nfs_file_fsync(struct file *file, int datasync)
{
+ struct dentry *dentry = file->f_path.dentry;
struct nfs_open_context *ctx = nfs_file_open_context(file);
struct inode *inode = dentry->d_inode;
#include "nilfs.h"
#include "segment.h"
-int nilfs_sync_file(struct file *file, struct dentry *dentry, int datasync)
+int nilfs_sync_file(struct file *file, int datasync)
{
/*
* Called from fsync() system call
* This function should be implemented when the writeback function
* will be implemented.
*/
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_mapping->host;
int err;
if (!nilfs_inode_dirty(inode))
struct page *, struct inode *);
/* file.c */
-extern int nilfs_sync_file(struct file *, struct dentry *, int);
+extern int nilfs_sync_file(struct file *, int);
/* ioctl.c */
long nilfs_ioctl(struct file *, unsigned int, unsigned long);
* this problem for now. We do write the $BITMAP attribute if it is present
* which is the important one for a directory so things are not too bad.
*/
-static int ntfs_dir_fsync(struct file *filp, struct dentry *dentry,
- int datasync)
+static int ntfs_dir_fsync(struct file *filp, int datasync)
{
- struct inode *bmp_vi, *vi = dentry->d_inode;
+ struct inode *bmp_vi, *vi = filp->f_mapping->host;
int err, ret;
ntfs_attr na;
/**
* ntfs_file_fsync - sync a file to disk
* @filp: file to be synced
- * @dentry: dentry describing the file to sync
* @datasync: if non-zero only flush user data and not metadata
*
* Data integrity sync of a file to disk. Used for fsync, fdatasync, and msync
* Also, if @datasync is true, we do not wait on the inode to be written out
* but we always wait on the page cache pages to be written out.
*
- * Note: In the past @filp could be NULL so we ignore it as we don't need it
- * anyway.
- *
* Locking: Caller must hold i_mutex on the inode.
*
* TODO: We should probably also write all attribute/index inodes associated
* with this inode but since we have no simple way of getting to them we ignore
* this problem for now.
*/
-static int ntfs_file_fsync(struct file *filp, struct dentry *dentry,
- int datasync)
+static int ntfs_file_fsync(struct file *filp, int datasync)
{
- struct inode *vi = dentry->d_inode;
+ struct inode *vi = filp->f_mapping->host;
int err, ret = 0;
ntfs_debug("Entering for inode 0x%lx.", vi->i_ino);
return 0;
}
-static int ocfs2_sync_file(struct file *file,
- struct dentry *dentry,
- int datasync)
+static int ocfs2_sync_file(struct file *file, int datasync)
{
int err = 0;
journal_t *journal;
- struct inode *inode = dentry->d_inode;
+ struct dentry *dentry = file->f_path.dentry;
+ struct inode *inode = file->f_mapping->host;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
mlog_entry("(0x%p, 0x%p, %d, '%.*s')\n", file, dentry, datasync,
}
/*
- * This will intentionally not wind up calling vmtruncate(),
+ * This will intentionally not wind up calling simple_setsize(),
* since all the work for a size change has been done above.
* Otherwise, we could get into problems with truncate as
* ip_alloc_sem is used there to protect against i_size
* direct write may have instantiated a few
* blocks outside i_size. Trim these off again.
* Don't need i_size_read because we hold i_mutex.
+ *
+ * XXX(hch): this looks buggy because ocfs2 did not
+ * actually implement ->truncate. Take a look at
+ * the new truncate sequence and update this accordingly
*/
if (*ppos + count > inode->i_size)
- vmtruncate(inode, inode->i_size);
+ simple_setsize(inode, inode->i_size);
ret = written;
goto out_dio;
}
.aio_read = generic_file_aio_read,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
.splice_read = generic_file_splice_read,
};
switch (cmd) {
case F_SETPIPE_SZ:
- if (!capable(CAP_SYS_ADMIN) && arg > pipe_max_pages)
- return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN) && arg > pipe_max_pages) {
+ ret = -EINVAL;
+ goto out;
+ }
/*
* The pipe needs to be at least 2 pages large to
* guarantee POSIX behaviour.
*/
- if (arg < 2)
- return -EINVAL;
+ if (arg < 2) {
+ ret = -EINVAL;
+ goto out;
+ }
ret = pipe_set_size(pipe, arg);
break;
case F_GETPIPE_SZ:
break;
}
+out:
mutex_unlock(&pipe->inode->i_mutex);
return ret;
}
.llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = qnx4_readdir,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
};
const struct inode_operations qnx4_dir_inode_operations =
.write = do_sync_write,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
- .fsync = simple_sync_file,
+ .fsync = noop_fsync,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
.llseek = generic_file_llseek,
};
const struct inode_operations ramfs_file_inode_operations = {
+ .setattr = simple_setattr,
.getattr = simple_getattr,
};
.aio_read = generic_file_aio_read,
.write = do_sync_write,
.aio_write = generic_file_aio_write,
- .fsync = simple_sync_file,
+ .fsync = noop_fsync,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
.llseek = generic_file_llseek,
return ret;
}
- ret = vmtruncate(inode, newsize);
+ ret = simple_setsize(inode, newsize);
return ret;
}
/* pick out size-changing events */
if (ia->ia_valid & ATTR_SIZE) {
- loff_t size = i_size_read(inode);
+ loff_t size = inode->i_size;
+
if (ia->ia_size != size) {
ret = ramfs_nommu_resize(inode, ia->ia_size, size);
if (ret < 0 || ia->ia_valid == ATTR_SIZE)
}
}
- ret = inode_setattr(inode, ia);
+ generic_setattr(inode, ia);
out:
ia->ia_valid = old_ia_valid;
return ret;
extern const struct reiserfs_key MIN_KEY;
static int reiserfs_readdir(struct file *, void *, filldir_t);
-static int reiserfs_dir_fsync(struct file *filp, struct dentry *dentry,
- int datasync);
+static int reiserfs_dir_fsync(struct file *filp, int datasync);
const struct file_operations reiserfs_dir_operations = {
.llseek = generic_file_llseek,
#endif
};
-static int reiserfs_dir_fsync(struct file *filp, struct dentry *dentry,
- int datasync)
+static int reiserfs_dir_fsync(struct file *filp, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = filp->f_mapping->host;
int err;
reiserfs_write_lock(inode->i_sb);
err = reiserfs_commit_for_inode(inode);
* be removed...
*/
-static int reiserfs_sync_file(struct file *filp,
- struct dentry *dentry, int datasync)
+static int reiserfs_sync_file(struct file *filp, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = filp->f_mapping->host;
int err;
int barrier_done;
#include "proto.h"
static int
-smb_fsync(struct file *file, struct dentry * dentry, int datasync)
+smb_fsync(struct file *file, int datasync)
{
+ struct dentry *dentry = file->f_path.dentry;
struct smb_sb_info *server = server_from_dentry(dentry);
int result;
error = server->ops->truncate(inode, attr->ia_size);
if (error)
goto out;
- error = vmtruncate(inode, attr->ia_size);
+ error = simple_setsize(inode, attr->ia_size);
if (error)
goto out;
refresh = 1;
EXPORT_SYMBOL_GPL(vfs_kern_mount);
/**
- * freeze_super -- lock the filesystem and force it into a consistent state
- * @super: the super to lock
+ * freeze_super - lock the filesystem and force it into a consistent state
+ * @sb: the super to lock
*
* Syncs the super to make sure the filesystem is consistent and calls the fs's
* freeze_fs. Subsequent calls to this without first thawing the fs will return
/*
* Generic function to fsync a file.
- *
- * filp may be NULL if called via the msync of a vma.
*/
-int file_fsync(struct file *filp, struct dentry *dentry, int datasync)
+int file_fsync(struct file *filp, int datasync)
{
- struct inode * inode = dentry->d_inode;
+ struct inode *inode = filp->f_mapping->host;
struct super_block * sb;
int ret, err;
* livelocks in fsync_buffers_list().
*/
mutex_lock(&mapping->host->i_mutex);
- err = file->f_op->fsync(file, file->f_path.dentry, datasync);
+ err = file->f_op->fsync(file, datasync);
if (!ret)
ret = err;
mutex_unlock(&mapping->host->i_mutex);
if (error)
goto out;
- iattr->ia_valid &= ~ATTR_SIZE; /* ignore size changes */
-
- error = inode_setattr(inode, iattr);
- if (error)
- goto out;
+ /* this ignores size changes */
+ generic_setattr(inode, iattr);
error = sysfs_sd_setattr(sd, iattr);
+
out:
mutex_unlock(&sysfs_mutex);
return error;
.llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = sysv_readdir,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
};
static inline void dir_put_page(struct page *page)
.write = do_sync_write,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
.splice_read = generic_file_splice_read,
};
* then attach current time stamp.
* But if the filesystem was marked clean, keep it clean.
*/
+ sb->s_dirt = 0;
old_time = fs32_to_cpu(sbi, *sbi->s_sb_time);
if (sbi->s_type == FSTYPE_SYSV4) {
if (*sbi->s_sb_state == cpu_to_fs32(sbi, 0x7c269d38 - old_time))
* the page locked, and it locks @ui_mutex. However, write-back does take inode
* @i_mutex, which means other VFS operations may be run on this inode at the
* same time. And the problematic one is truncation to smaller size, from where
- * we have to call 'vmtruncate()', which first changes @inode->i_size, then
+ * we have to call 'simple_setsize()', which first changes @inode->i_size, then
* drops the truncated pages. And while dropping the pages, it takes the page
- * lock. This means that 'do_truncation()' cannot call 'vmtruncate()' with
+ * lock. This means that 'do_truncation()' cannot call 'simple_setsize()' with
* @ui_mutex locked, because it would deadlock with 'ubifs_writepage()'. This
* means that @inode->i_size is changed while @ui_mutex is unlocked.
*
+ * XXX: with the new truncate the above is not true anymore, the simple_setsize
+ * calls can be replaced with the individual components.
+ *
* But in 'ubifs_writepage()' we have to guarantee that we do not write beyond
* inode size. How do we do this if @inode->i_size may became smaller while we
* are in the middle of 'ubifs_writepage()'? The UBIFS solution is the
budgeted = 0;
}
- err = vmtruncate(inode, new_size);
+ err = simple_setsize(inode, new_size);
if (err)
goto out_budg;
if (attr->ia_valid & ATTR_SIZE) {
dbg_gen("size %lld -> %lld", inode->i_size, new_size);
- err = vmtruncate(inode, new_size);
+ err = simple_setsize(inode, new_size);
if (err)
goto out;
}
if (attr->ia_valid & ATTR_SIZE) {
/* Truncation changes inode [mc]time */
inode->i_mtime = inode->i_ctime = ubifs_current_time(inode);
- /* 'vmtruncate()' changed @i_size, update @ui_size */
+ /* 'simple_setsize()' changed @i_size, update @ui_size */
ui->ui_size = inode->i_size;
}
return NULL;
}
-int ubifs_fsync(struct file *file, struct dentry *dentry, int datasync)
+int ubifs_fsync(struct file *file, int datasync)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = file->f_mapping->host;
struct ubifs_info *c = inode->i_sb->s_fs_info;
int err;
* The @ui_size is a "shadow" variable for @inode->i_size and UBIFS uses
* @ui_size instead of @inode->i_size. The reason for this is that UBIFS cannot
* make sure @inode->i_size is always changed under @ui_mutex, because it
- * cannot call 'vmtruncate()' with @ui_mutex locked, because it would deadlock
+ * cannot call 'simple_setsize()' with @ui_mutex locked, because it would deadlock
* with 'ubifs_writepage()' (see file.c). All the other inode fields are
* changed under @ui_mutex, so they do not need "shadow" fields. Note, one
* could consider to rework locking and base it on "shadow" fields.
int ubifs_calc_dark(const struct ubifs_info *c, int spc);
/* file.c */
-int ubifs_fsync(struct file *file, struct dentry *dentry, int datasync);
+int ubifs_fsync(struct file *file, int datasync);
int ubifs_setattr(struct dentry *dentry, struct iattr *attr);
/* dir.c */
.read = generic_read_dir,
.readdir = udf_readdir,
.unlocked_ioctl = udf_ioctl,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
};
.write = do_sync_write,
.aio_write = udf_file_aio_write,
.release = udf_release_file,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
.splice_read = generic_file_splice_read,
.llseek = generic_file_llseek,
};
const struct file_operations ufs_dir_operations = {
.read = generic_read_dir,
.readdir = ufs_readdir,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
.llseek = generic_file_llseek,
};
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
.open = dquot_file_open,
- .fsync = simple_fsync,
+ .fsync = generic_file_fsync,
.splice_read = generic_file_splice_read,
};
return err;
}
-
/*
- * We don't define our `inode->i_op->truncate', and call it here,
- * because of:
- * - there is no way to know old size
- * - there is no way inform user about error, if it happens in `truncate'
+ * TODO:
+ * - truncate case should use proper ordering instead of using
+ * simple_setsize
*/
int ufs_setattr(struct dentry *dentry, struct iattr *attr)
{
if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
loff_t old_i_size = inode->i_size;
- error = vmtruncate(inode, attr->ia_size);
+ error = simple_setsize(inode, attr->ia_size);
if (error)
return error;
error = ufs_truncate(inode, old_i_size);
STATIC int
xfs_file_fsync(
struct file *file,
- struct dentry *dentry,
int datasync)
{
- struct xfs_inode *ip = XFS_I(dentry->d_inode);
+ struct inode *inode = file->f_mapping->host;
+ struct xfs_inode *ip = XFS_I(inode);
struct xfs_trans *tp;
int error = 0;
int log_flushed = 0;
* might gets cleared when the inode gets written out via the AIL
* or xfs_iflush_cluster.
*/
- if (((dentry->d_inode->i_state & I_DIRTY_DATASYNC) ||
- ((dentry->d_inode->i_state & I_DIRTY_SYNC) && !datasync)) &&
+ if (((inode->i_state & I_DIRTY_DATASYNC) ||
+ ((inode->i_state & I_DIRTY_SYNC) && !datasync)) &&
ip->i_update_core) {
/*
* Kick off a transaction to log the inode core to get the
mutex_lock(&inode->i_mutex);
xfs_ilock(ip, iolock);
- error2 = -xfs_file_fsync(file, file->f_path.dentry,
+ error2 = -xfs_file_fsync(file,
(file->f_flags & __O_SYNC) ? 0 : 1);
if (!error)
error = error2;
int block_read_full_page(struct page*, get_block_t*);
int block_is_partially_uptodate(struct page *page, read_descriptor_t *desc,
unsigned long from);
+int block_write_begin_newtrunc(struct file *, struct address_space *,
+ loff_t, unsigned, unsigned,
+ struct page **, void **, get_block_t*);
int block_write_begin(struct file *, struct address_space *,
loff_t, unsigned, unsigned,
struct page **, void **, get_block_t*);
struct page *, void *);
void page_zero_new_buffers(struct page *page, unsigned from, unsigned to);
int block_prepare_write(struct page*, unsigned, unsigned, get_block_t*);
+int cont_write_begin_newtrunc(struct file *, struct address_space *, loff_t,
+ unsigned, unsigned, struct page **, void **,
+ get_block_t *, loff_t *);
int cont_write_begin(struct file *, struct address_space *, loff_t,
unsigned, unsigned, struct page **, void **,
get_block_t *, loff_t *);
void block_sync_page(struct page *);
sector_t generic_block_bmap(struct address_space *, sector_t, get_block_t *);
int block_truncate_page(struct address_space *, loff_t, get_block_t *);
-int file_fsync(struct file *, struct dentry *, int);
+int file_fsync(struct file *, int);
+int nobh_write_begin_newtrunc(struct file *, struct address_space *,
+ loff_t, unsigned, unsigned,
+ struct page **, void **, get_block_t*);
int nobh_write_begin(struct file *, struct address_space *,
loff_t, unsigned, unsigned,
struct page **, void **, get_block_t*);
extern void ext3_htree_free_dir_info(struct dir_private_info *p);
/* fsync.c */
-extern int ext3_sync_file (struct file *, struct dentry *, int);
+extern int ext3_sync_file(struct file *, int);
/* hash.c */
extern int ext3fs_dirhash(const char *name, int len, struct
#include <linux/types.h>
#include <linux/i2c.h>
-struct dentry;
-
/* Definitions of frame buffers */
#define FB_MAX 32 /* sufficient for now */
struct inode *inode,
struct file *file);
extern void fb_deferred_io_cleanup(struct fb_info *info);
-extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
- int datasync);
+extern int fb_deferred_io_fsync(struct file *file, int datasync);
static inline bool fb_be_math(struct fb_info *info)
{
struct file;
-extern void __fput(struct file *);
extern void fput(struct file *);
extern void drop_file_write_access(struct file *file);
#define file_list_unlock() spin_unlock(&files_lock);
#define get_file(x) atomic_long_inc(&(x)->f_count)
+#define fput_atomic(x) atomic_long_add_unless(&(x)->f_count, -1, 1)
#define file_count(x) atomic_long_read(&(x)->f_count)
#ifdef CONFIG_DEBUG_WRITECOUNT
int (*open) (struct inode *, struct file *);
int (*flush) (struct file *, fl_owner_t id);
int (*release) (struct inode *, struct file *);
- int (*fsync) (struct file *, struct dentry *, int datasync);
+ int (*fsync) (struct file *, int datasync);
int (*aio_fsync) (struct kiocb *, int datasync);
int (*fasync) (int, struct file *, int);
int (*lock) (struct file *, int, struct file_lock *);
/* fs/block_dev.c */
extern ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
-extern int blkdev_fsync(struct file *filp, struct dentry *dentry, int datasync);
+extern int blkdev_fsync(struct file *filp, int datasync);
/* fs/splice.c */
extern ssize_t generic_file_splice_read(struct file *, loff_t *,
loff_t file_offset);
void dio_end_io(struct bio *bio, int error);
+ssize_t __blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb, struct inode *inode,
+ struct block_device *bdev, const struct iovec *iov, loff_t offset,
+ unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
+ dio_submit_t submit_io, int lock_type);
ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
struct block_device *bdev, const struct iovec *iov, loff_t offset,
unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
DIO_SKIP_HOLES = 0x02,
};
+static inline ssize_t blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb,
+ struct inode *inode, struct block_device *bdev, const struct iovec *iov,
+ loff_t offset, unsigned long nr_segs, get_block_t get_block,
+ dio_iodone_t end_io)
+{
+ return __blockdev_direct_IO_newtrunc(rw, iocb, inode, bdev, iov, offset,
+ nr_segs, get_block, end_io, NULL,
+ DIO_LOCKING | DIO_SKIP_HOLES);
+}
+
+static inline ssize_t blockdev_direct_IO_no_locking_newtrunc(int rw, struct kiocb *iocb,
+ struct inode *inode, struct block_device *bdev, const struct iovec *iov,
+ loff_t offset, unsigned long nr_segs, get_block_t get_block,
+ dio_iodone_t end_io)
+{
+ return __blockdev_direct_IO_newtrunc(rw, iocb, inode, bdev, iov, offset,
+ nr_segs, get_block, end_io, NULL, 0);
+}
static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb,
struct inode *inode, struct block_device *bdev, const struct iovec *iov,
loff_t offset, unsigned long nr_segs, get_block_t get_block,
extern int dcache_dir_close(struct inode *, struct file *);
extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
extern int dcache_readdir(struct file *, void *, filldir_t);
+extern int simple_setattr(struct dentry *, struct iattr *);
extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
extern int simple_statfs(struct dentry *, struct kstatfs *);
extern int simple_link(struct dentry *, struct inode *, struct dentry *);
extern int simple_unlink(struct inode *, struct dentry *);
extern int simple_rmdir(struct inode *, struct dentry *);
extern int simple_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
-extern int simple_sync_file(struct file *, struct dentry *, int);
+extern int simple_setsize(struct inode *, loff_t);
+extern int noop_fsync(struct file *, int);
extern int simple_empty(struct dentry *);
extern int simple_readpage(struct file *file, struct page *page);
extern int simple_write_begin(struct file *file, struct address_space *mapping,
extern ssize_t simple_write_to_buffer(void *to, size_t available, loff_t *ppos,
const void __user *from, size_t count);
-extern int simple_fsync(struct file *, struct dentry *, int);
+extern int generic_file_fsync(struct file *, int);
#ifdef CONFIG_MIGRATION
extern int buffer_migrate_page(struct address_space *,
extern int inode_change_ok(const struct inode *, struct iattr *);
extern int inode_newsize_ok(const struct inode *, loff_t offset);
-extern int __must_check inode_setattr(struct inode *, struct iattr *);
+extern int __must_check inode_setattr(struct inode *, const struct iattr *);
+extern void generic_setattr(struct inode *inode, const struct iattr *attr);
extern void file_update_time(struct file *file);
ATA_HORKAGE_1_5_GBPS = (1 << 13), /* force 1.5 Gbps */
ATA_HORKAGE_NOSETXFER = (1 << 14), /* skip SETXFER, SATA only */
ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */
+ ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */
/* DMA mask for user DMA control: User visible values; DO NOT
renumber */
void __iomem *command_addr;
void __iomem *altstatus_addr;
void __iomem *ctl_addr;
+#ifdef CONFIG_ATA_BMDMA
void __iomem *bmdma_addr;
+#endif /* CONFIG_ATA_BMDMA */
void __iomem *scr_addr;
};
#endif /* CONFIG_ATA_SFF */
u8 ctl; /* cache of ATA control register */
u8 last_ctl; /* Cache last written value */
struct delayed_work sff_pio_task;
+#ifdef CONFIG_ATA_BMDMA
struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */
dma_addr_t bmdma_prd_dma; /* and its DMA mapping */
+#endif /* CONFIG_ATA_BMDMA */
#endif /* CONFIG_ATA_SFF */
unsigned int pio_mask;
void (*sff_irq_clear)(struct ata_port *);
void (*sff_drain_fifo)(struct ata_queued_cmd *qc);
+#ifdef CONFIG_ATA_BMDMA
void (*bmdma_setup)(struct ata_queued_cmd *qc);
void (*bmdma_start)(struct ata_queued_cmd *qc);
void (*bmdma_stop)(struct ata_queued_cmd *qc);
u8 (*bmdma_status)(struct ata_port *ap);
+#endif /* CONFIG_ATA_BMDMA */
#endif /* CONFIG_ATA_SFF */
ssize_t (*em_show)(struct ata_port *ap, char *buf);
#ifdef CONFIG_ATA_SFF
extern const struct ata_port_operations ata_sff_port_ops;
-extern const struct ata_port_operations ata_bmdma_port_ops;
extern const struct ata_port_operations ata_bmdma32_port_ops;
/* PIO only, sg_tablesize and dma_boundary limits can be removed */
.sg_tablesize = LIBATA_MAX_PRD, \
.dma_boundary = ATA_DMA_BOUNDARY
-#define ATA_BMDMA_SHT(drv_name) \
- ATA_BASE_SHT(drv_name), \
- .sg_tablesize = LIBATA_MAX_PRD, \
- .dma_boundary = ATA_DMA_BOUNDARY
-
extern void ata_sff_dev_select(struct ata_port *ap, unsigned int device);
extern u8 ata_sff_check_status(struct ata_port *ap);
extern void ata_sff_pause(struct ata_port *ap);
extern void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay);
extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc);
extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc);
-extern unsigned int ata_sff_host_intr(struct ata_port *ap,
+extern unsigned int ata_sff_port_intr(struct ata_port *ap,
struct ata_queued_cmd *qc);
extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance);
extern void ata_sff_lost_interrupt(struct ata_port *ap);
struct scsi_host_template *sht, void *host_priv, int hflags);
#endif /* CONFIG_PCI */
+#ifdef CONFIG_ATA_BMDMA
+
+extern const struct ata_port_operations ata_bmdma_port_ops;
+
+#define ATA_BMDMA_SHT(drv_name) \
+ ATA_BASE_SHT(drv_name), \
+ .sg_tablesize = LIBATA_MAX_PRD, \
+ .dma_boundary = ATA_DMA_BOUNDARY
+
extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc);
extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc);
extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc);
+extern unsigned int ata_bmdma_port_intr(struct ata_port *ap,
+ struct ata_queued_cmd *qc);
+extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance);
extern void ata_bmdma_error_handler(struct ata_port *ap);
extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc);
+extern void ata_bmdma_irq_clear(struct ata_port *ap);
extern void ata_bmdma_setup(struct ata_queued_cmd *qc);
extern void ata_bmdma_start(struct ata_queued_cmd *qc);
extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
#ifdef CONFIG_PCI
extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev);
extern void ata_pci_bmdma_init(struct ata_host *host);
+extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi,
+ struct ata_host **r_host);
+extern int ata_pci_bmdma_init_one(struct pci_dev *pdev,
+ const struct ata_port_info * const * ppi,
+ struct scsi_host_template *sht,
+ void *host_priv, int hflags);
#endif /* CONFIG_PCI */
+#endif /* CONFIG_ATA_BMDMA */
/**
* ata_sff_busy_wait - Wait for a port status register
static inline u32 task_cls_classid(struct task_struct *p)
{
int id;
- u32 classid;
+ u32 classid = 0;
if (in_interrupt())
return 0;
/* Reference counting. */
atomic_t refcnt;
- int dead:1,
+ __u32 dead:1,
/* RTO-Pending : A flag used to track if one of the DATA
* chunks sent to this address is currently being
* used to compute a RTT. If this flag is 0,
SINGLE_DEPTH_NESTING)
#define bh_unlock_sock(__sk) spin_unlock(&((__sk)->sk_lock.slock))
-static inline void lock_sock_bh(struct sock *sk)
+extern bool lock_sock_fast(struct sock *sk);
+/**
+ * unlock_sock_fast - complement of lock_sock_fast
+ * @sk: socket
+ * @slow: slow mode
+ *
+ * fast unlock socket for user context.
+ * If slow mode is on, we call regular release_sock()
+ */
+static inline void unlock_sock_fast(struct sock *sk, bool slow)
{
- spin_lock_bh(&sk->sk_lock.slock);
+ if (slow)
+ release_sock(sk);
+ else
+ spin_unlock_bh(&sk->sk_lock.slock);
}
-static inline void unlock_sock_bh(struct sock *sk)
-{
- spin_unlock_bh(&sk->sk_lock.slock);
-}
extern struct sock *sk_alloc(struct net *net, int family,
gfp_t priority,
);
TRACE_EVENT(ext4_sync_file,
- TP_PROTO(struct file *file, struct dentry *dentry, int datasync),
+ TP_PROTO(struct file *file, int datasync),
- TP_ARGS(file, dentry, datasync),
+ TP_ARGS(file, datasync),
TP_STRUCT__entry(
__field( dev_t, dev )
),
TP_fast_assign(
+ struct dentry *dentry = file->f_path.dentry;
+
__entry->dev = dentry->d_inode->i_sb->s_dev;
__entry->ino = dentry->d_inode->i_ino;
__entry->datasync = datasync;
return 0;
}
-static int shm_fsync(struct file *file, struct dentry *dentry, int datasync)
+static int shm_fsync(struct file *file, int datasync)
{
- int (*fsync) (struct file *, struct dentry *, int datasync);
struct shm_file_data *sfd = shm_file_data(file);
- int ret = -EINVAL;
- fsync = sfd->file->f_op->fsync;
- if (fsync)
- ret = fsync(sfd->file, sfd->file->f_path.dentry, datasync);
- return ret;
+ if (!sfd->file->f_op->fsync)
+ return -EINVAL;
+ return sfd->file->f_op->fsync(sfd->file, datasync);
}
static unsigned long shm_get_unmapped_area(struct file *file,
do {
seq = read_seqbegin(&xtime_lock);
- xts = current_kernel_time();
+ xts = __current_kernel_time();
tom = wall_to_monotonic;
} while (read_seqretry(&xtime_lock, seq));
struct perf_event_context *ctx;
struct file *event_file = NULL;
struct file *group_file = NULL;
+ int event_fd;
int fput_needed = 0;
- int fput_needed2 = 0;
int err;
/* for future expandability... */
return -EINVAL;
}
+ event_fd = get_unused_fd_flags(O_RDWR);
+ if (event_fd < 0)
+ return event_fd;
+
/*
* Get the target context (task or percpu):
*/
ctx = find_get_context(pid, cpu);
- if (IS_ERR(ctx))
- return PTR_ERR(ctx);
+ if (IS_ERR(ctx)) {
+ err = PTR_ERR(ctx);
+ goto err_fd;
+ }
/*
* Look up the group leader (we will attach this event to it):
if (IS_ERR(event))
goto err_put_context;
- err = anon_inode_getfd("[perf_event]", &perf_fops, event, O_RDWR);
- if (err < 0)
- goto err_free_put_context;
-
- event_file = fget_light(err, &fput_needed2);
- if (!event_file)
+ event_file = anon_inode_getfile("[perf_event]", &perf_fops, event, O_RDWR);
+ if (IS_ERR(event_file)) {
+ err = PTR_ERR(event_file);
goto err_free_put_context;
+ }
if (flags & PERF_FLAG_FD_OUTPUT) {
err = perf_event_set_output(event, group_fd);
list_add_tail(&event->owner_entry, ¤t->perf_event_list);
mutex_unlock(¤t->perf_event_mutex);
-err_fput_free_put_context:
- fput_light(event_file, fput_needed2);
+ fput_light(group_file, fput_needed);
+ fd_install(event_fd, event_file);
+ return event_fd;
+err_fput_free_put_context:
+ fput(event_file);
err_free_put_context:
- if (err < 0)
- free_event(event);
-
+ free_event(event);
err_put_context:
- if (err < 0)
- put_ctx(ctx);
-
fput_light(group_file, fput_needed);
-
+ put_ctx(ctx);
+err_fd:
+ put_unused_fd(event_fd);
return err;
}
new_timer->it_id = (timer_t) new_timer_id;
new_timer->it_clock = which_clock;
new_timer->it_overrun = -1;
- error = CLOCK_DISPATCH(which_clock, timer_create, (new_timer));
- if (error)
- goto out;
- /*
- * return the timer_id now. The next step is hard to
- * back out if there is an error.
- */
if (copy_to_user(created_timer_id,
&new_timer_id, sizeof (new_timer_id))) {
error = -EFAULT;
new_timer->sigq->info.si_tid = new_timer->it_id;
new_timer->sigq->info.si_code = SI_TIMER;
+ error = CLOCK_DISPATCH(which_clock, timer_create, (new_timer));
+ if (error)
+ goto out;
+
spin_lock_irq(¤t->sighand->siglock);
new_timer->it_signal = current->signal;
list_add(&new_timer->list, ¤t->signal->posix_timers);
expires_limit = expires;
- if (timer->slack > -1)
+ if (timer->slack >= 0) {
expires_limit = expires + timer->slack;
- else if (time_after(expires, jiffies)) /* auto slack: use 0.4% */
- expires_limit = expires + (expires - jiffies)/256;
+ } else {
+ unsigned long now = jiffies;
+ /* No slack, if already expired else auto slack 0.4% */
+ if (time_after(expires, now))
+ expires_limit = expires + (expires - now)/256;
+ }
mask = expires ^ expires_limit;
if (mask == 0)
return expires;
if (inode->i_mapping->nrpages && (info->flags & SHMEM_PAGEIN)) {
/*
* Call truncate_inode_pages again: racing shmem_unuse_inode
- * may have swizzled a page in from swap since vmtruncate or
- * generic_delete_inode did it, before we lowered next_index.
- * Also, though shmem_getpage checks i_size before adding to
- * cache, no recheck after: so fix the narrow window there too.
+ * may have swizzled a page in from swap since
+ * truncate_pagecache or generic_delete_inode did it, before we
+ * lowered next_index. Also, though shmem_getpage checks
+ * i_size before adding to cache, no recheck after: so fix the
+ * narrow window there too.
*
* Recalling truncate_inode_pages_range and unmap_mapping_range
* every time for punch_hole (which never got a chance to clear
}
}
-static void shmem_truncate(struct inode *inode)
-{
- shmem_truncate_range(inode, inode->i_size, (loff_t)-1);
-}
-
static int shmem_notify_change(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
- struct page *page = NULL;
int error;
if (S_ISREG(inode->i_mode) && (attr->ia_valid & ATTR_SIZE)) {
- if (attr->ia_size < inode->i_size) {
+ loff_t newsize = attr->ia_size;
+ struct page *page = NULL;
+
+ if (newsize < inode->i_size) {
/*
* If truncating down to a partial page, then
* if that page is already allocated, hold it
* truncate_partial_page cannnot miss it were
* it assigned to swap.
*/
- if (attr->ia_size & (PAGE_CACHE_SIZE-1)) {
+ if (newsize & (PAGE_CACHE_SIZE-1)) {
(void) shmem_getpage(inode,
- attr->ia_size>>PAGE_CACHE_SHIFT,
+ newsize >> PAGE_CACHE_SHIFT,
&page, SGP_READ, NULL);
if (page)
unlock_page(page);
* if it's being fully truncated to zero-length: the
* nrpages check is efficient enough in that case.
*/
- if (attr->ia_size) {
+ if (newsize) {
struct shmem_inode_info *info = SHMEM_I(inode);
spin_lock(&info->lock);
info->flags &= ~SHMEM_PAGEIN;
spin_unlock(&info->lock);
}
}
+
+ error = simple_setsize(inode, newsize);
+ if (page)
+ page_cache_release(page);
+ if (error)
+ return error;
+ shmem_truncate_range(inode, newsize, (loff_t)-1);
}
error = inode_change_ok(inode, attr);
if (!error)
- error = inode_setattr(inode, attr);
+ generic_setattr(inode, attr);
#ifdef CONFIG_TMPFS_POSIX_ACL
if (!error && (attr->ia_valid & ATTR_MODE))
error = generic_acl_chmod(inode);
#endif
- if (page)
- page_cache_release(page);
return error;
}
{
struct shmem_inode_info *info = SHMEM_I(inode);
- if (inode->i_op->truncate == shmem_truncate) {
+ if (inode->i_mapping->a_ops == &shmem_aops) {
truncate_inode_pages(inode->i_mapping, 0);
shmem_unacct_size(info->flags, inode->i_size);
inode->i_size = 0;
- shmem_truncate(inode);
+ shmem_truncate_range(inode, 0, (loff_t)-1);
if (!list_empty(&info->swaplist)) {
mutex_lock(&shmem_swaplist_mutex);
list_del_init(&info->swaplist);
};
static const struct inode_operations shmem_symlink_inode_operations = {
- .truncate = shmem_truncate,
.readlink = generic_readlink,
.follow_link = shmem_follow_link,
.put_link = shmem_put_link,
.write = do_sync_write,
.aio_read = shmem_file_aio_read,
.aio_write = generic_file_aio_write,
- .fsync = simple_sync_file,
+ .fsync = noop_fsync,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
#endif
};
static const struct inode_operations shmem_inode_operations = {
- .truncate = shmem_truncate,
.setattr = shmem_notify_change,
.truncate_range = shmem_truncate_range,
#ifdef CONFIG_TMPFS_POSIX_ACL
* NOTE! We have to be ready to update the memory sharing
* between the file and the memory map for a potential last
* incomplete page. Ugly, but necessary.
+ *
+ * This function is deprecated and simple_setsize or truncate_pagecache
+ * should be used instead.
*/
int vmtruncate(struct inode *inode, loff_t offset)
{
- loff_t oldsize;
int error;
- error = inode_newsize_ok(inode, offset);
+ error = simple_setsize(inode, offset);
if (error)
return error;
- oldsize = inode->i_size;
- i_size_write(inode, offset);
- truncate_pagecache(inode, oldsize, offset);
+
if (inode->i_op->truncate)
inode->i_op->truncate(inode);
void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb)
{
+ bool slow;
+
if (likely(atomic_read(&skb->users) == 1))
smp_rmb();
else if (likely(!atomic_dec_and_test(&skb->users)))
return;
- lock_sock_bh(sk);
+ slow = lock_sock_fast(sk);
skb_orphan(skb);
sk_mem_reclaim_partial(sk);
- unlock_sock_bh(sk);
+ unlock_sock_fast(sk, slow);
/* skb is now orphaned, can be freed outside of locked section */
__kfree_skb(skb);
kfree_skb(buff);
NEIGH_CACHE_STAT_INC(neigh->tbl, unres_discards);
}
+ skb_dst_force(skb);
__skb_queue_tail(&neigh->arp_queue, skb);
}
rc = 1;
if (dev->dev.parent && dev_is_pci(dev->dev.parent)) {
int num_vfs = dev_num_vf(dev->dev.parent);
- size_t size = nlmsg_total_size(sizeof(struct nlattr));
- size += nlmsg_total_size(num_vfs * sizeof(struct nlattr));
- size += num_vfs * (sizeof(struct ifla_vf_mac) +
- sizeof(struct ifla_vf_vlan) +
- sizeof(struct ifla_vf_tx_rate));
+ size_t size = nla_total_size(sizeof(struct nlattr));
+ size += nla_total_size(num_vfs * sizeof(struct nlattr));
+ size += num_vfs *
+ (nla_total_size(sizeof(struct ifla_vf_mac)) +
+ nla_total_size(sizeof(struct ifla_vf_vlan)) +
+ nla_total_size(sizeof(struct ifla_vf_tx_rate)));
return size;
} else
return 0;
for (vf = 0; vf < dev_num_vf(dev->dev.parent); vf++) {
vf_port = nla_nest_start(skb, IFLA_VF_PORT);
- if (!vf_port) {
- nla_nest_cancel(skb, vf_ports);
- return -EMSGSIZE;
- }
+ if (!vf_port)
+ goto nla_put_failure;
NLA_PUT_U32(skb, IFLA_PORT_VF, vf);
err = dev->netdev_ops->ndo_get_vf_port(dev, vf, skb);
+ if (err == -EMSGSIZE)
+ goto nla_put_failure;
if (err) {
-nla_put_failure:
nla_nest_cancel(skb, vf_port);
continue;
}
nla_nest_end(skb, vf_ports);
return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, vf_ports);
+ return -EMSGSIZE;
}
static int rtnl_port_self_fill(struct sk_buff *skb, struct net_device *dev)
err = dev->netdev_ops->ndo_get_vf_port(dev, PORT_SELF_VF, skb);
if (err) {
nla_nest_cancel(skb, port_self);
- return err;
+ return (err == -EMSGSIZE) ? err : 0;
}
nla_nest_end(skb, port_self);
}
EXPORT_SYMBOL(release_sock);
+/**
+ * lock_sock_fast - fast version of lock_sock
+ * @sk: socket
+ *
+ * This version should be used for very small section, where process wont block
+ * return false if fast path is taken
+ * sk_lock.slock locked, owned = 0, BH disabled
+ * return true if slow path is taken
+ * sk_lock.slock unlocked, owned = 1, BH enabled
+ */
+bool lock_sock_fast(struct sock *sk)
+{
+ might_sleep();
+ spin_lock_bh(&sk->sk_lock.slock);
+
+ if (!sk->sk_lock.owned)
+ /*
+ * Note : We must disable BH
+ */
+ return false;
+
+ __lock_sock(sk);
+ sk->sk_lock.owned = 1;
+ spin_unlock(&sk->sk_lock.slock);
+ /*
+ * The sk_lock has mutex_lock() semantics here:
+ */
+ mutex_acquire(&sk->sk_lock.dep_map, 0, 0, _RET_IP_);
+ local_bh_enable();
+ return true;
+}
+EXPORT_SYMBOL(lock_sock_fast);
+
int sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct timeval tv;
struct rtattr *mp_head;
/* If cache is unresolved, don't try to parse IIF and OIF */
- if (c->mfc_parent > MAXVIFS)
+ if (c->mfc_parent >= MAXVIFS)
return -ENOENT;
if (VIF_EXISTS(mrt, c->mfc_parent))
spin_unlock_bh(&rcvq->lock);
if (!skb_queue_empty(&list_kill)) {
- lock_sock_bh(sk);
+ bool slow = lock_sock_fast(sk);
+
__skb_queue_purge(&list_kill);
sk_mem_reclaim_partial(sk);
- unlock_sock_bh(sk);
+ unlock_sock_fast(sk, slow);
}
return res;
}
int peeked;
int err;
int is_udplite = IS_UDPLITE(sk);
+ bool slow;
/*
* Check any passed addresses
return err;
csum_copy_err:
- lock_sock_bh(sk);
+ slow = lock_sock_fast(sk);
if (!skb_kill_datagram(sk, skb, flags))
UDP_INC_STATS_USER(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
- unlock_sock_bh(sk);
+ unlock_sock_fast(sk, slow);
if (noblock)
return -EAGAIN;
void udp_destroy_sock(struct sock *sk)
{
- lock_sock_bh(sk);
+ bool slow = lock_sock_fast(sk);
udp_flush_pending_frames(sk);
- unlock_sock_bh(sk);
+ unlock_sock_fast(sk, slow);
}
/*
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
- if (skb->len > mtu) {
+ if (skb->len > mtu && !skb_is_gso(skb)) {
/* Again, force OUTPUT device used as source address */
skb->dev = dst->dev;
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
struct rtattr *mp_head;
/* If cache is unresolved, don't try to parse IIF and OIF */
- if (c->mf6c_parent > MAXMIFS)
+ if (c->mf6c_parent >= MAXMIFS)
return -ENOENT;
if (MIF_EXISTS(mrt, c->mf6c_parent))
int err;
int is_udplite = IS_UDPLITE(sk);
int is_udp4;
+ bool slow;
if (addr_len)
*addr_len=sizeof(struct sockaddr_in6);
return err;
csum_copy_err:
- lock_sock_bh(sk);
+ slow = lock_sock_fast(sk);
if (!skb_kill_datagram(sk, skb, flags)) {
if (is_udp4)
UDP_INC_STATS_USER(sock_net(sk),
UDP6_INC_STATS_USER(sock_net(sk),
UDP_MIB_INERRORS, is_udplite);
}
- unlock_sock_bh(sk);
+ unlock_sock_fast(sk, slow);
if (flags & MSG_DONTWAIT)
return -EAGAIN;
save_message:
save_msg = kzalloc(sizeof(struct sock_msg_q), GFP_ATOMIC | GFP_DMA);
if (!save_msg)
- return;
+ goto out_unlock;
save_msg->path = path;
save_msg->msg = *msg;
if (ip_route_output_key(net, &rt, &fl) != 0)
return false;
- dst_release(skb_dst(skb));
+ skb_dst_drop(skb);
skb_dst_set(skb, &rt->u.dst);
skb->dev = rt->u.dst.dev;
skb->protocol = htons(ETH_P_IP);
if (dst == NULL)
return false;
- dst_release(skb_dst(skb));
+ skb_dst_drop(skb);
skb_dst_set(skb, dst);
skb->dev = dst->dev;
skb->protocol = htons(ETH_P_IPV6);
git.openpandora.org / pandora-kernel.git / commitdiff