pandora-kernel.git
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Fri, 26 Jun 2009 16:37:19 +0000 (09:37 -0700)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] remove unknown mount option warning message
  [CIFS] remove bkl usage from umount begin
  cifs: Fix incorrect return code being printed in cFYI messages
  [CIFS] cleanup asn handling for ntlmssp
  [CIFS] Copy struct *after* setting the port, instead of before.
  cifs: remove rw/ro options
  cifs: fix problems with earlier patches
  cifs: have cifs parse scope_id out of IPv6 addresses and use it
  [CIFS] Do not send tree disconnect if session is already disconnected
  [CIFS] Fix build break
  cifs: display scopeid in /proc/mounts
  cifs: add new routine for converting AF_INET and AF_INET6 addrs
  cifs: have cifs_show_options show forceuid/forcegid options
  cifs: remove unneeded NULL checks from cifs_show_options

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Fri, 26 Jun 2009 15:48:42 +0000 (08:48 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc32: Fix makefile not generating required files
  sparc32: Fix tftpboot.img Makefile
  sparc: fix tftpboot.img build
  sparc32: Fix obvious build issues for tftpboot.img build.
  sparc64: Fix build warnings in piggyback_64.c
  sparc64: Don't use alloc_bootmem() in init_IRQ() code paths.

13 years ago[CIFS] remove unknown mount option warning message
Steve French [Fri, 26 Jun 2009 04:07:18 +0000 (04:07 +0000)]
[CIFS] remove unknown mount option warning message

Jeff's previous patch which removed the unneeded rw/ro
parsing can cause a minor warning in dmesg (about the
unknown rw or ro mount option) at mount time. This
patch makes cifs ignore them in kernel to remove the warning
(they are already handled in the mount helper and VFS).

Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years ago[CIFS] remove bkl usage from umount begin
Steve French [Fri, 26 Jun 2009 03:25:49 +0000 (03:25 +0000)]
[CIFS] remove bkl usage from umount begin

The lock_kernel call moved into the fs for umount_begin
is not needed.  This adds a check to make sure we don't
call umount_begin twice on the same fs.

umount_begin for cifs is probably not needed and
may eventually be able to be removed, but in
the meantime this smaller patch is safe and
gets rid of the bkl from this path which provides
some benefit.

Acked-by: Jeff Layton <redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years agosparc32: Fix makefile not generating required files
Julian Calaby [Tue, 23 Jun 2009 01:45:46 +0000 (01:45 +0000)]
sparc32: Fix makefile not generating required files

The tftpboot build was failing with missing file errors.

It turns out that $(obj)/image wasn't being generated which was causing the a.out conversion to be skipped and hence piggyback to be called with nonexistent files.

Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosparc32: Fix tftpboot.img Makefile
Julian Calaby [Sun, 21 Jun 2009 16:45:01 +0000 (16:45 +0000)]
sparc32: Fix tftpboot.img Makefile

Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosparc: fix tftpboot.img build
Sam Ravnborg [Sun, 21 Jun 2009 16:46:10 +0000 (16:46 +0000)]
sparc: fix tftpboot.img build

Kjetil Oftedal mentioned that piggyback_32 was failing
when building a sparc image.

I tracked this down to the fact that the kernel no longer
provided an absolute symbol named "end".

Commit 86ed40bd6fe511d26bb8f3fa65a84cb65c235366 ("sparc: unify sections.h")
renamed end to _end but failed to update piggyback_32.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Kjetil Oftedal <oftedal@gmail.com>
Cc: Robert Reif <reif@earthlink.net>
Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosparc32: Fix obvious build issues for tftpboot.img build.
Robert Reif [Sun, 21 Jun 2009 16:45:44 +0000 (16:45 +0000)]
sparc32: Fix obvious build issues for tftpboot.img build.

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosparc64: Fix build warnings in piggyback_64.c
Julian Calaby [Sun, 21 Jun 2009 16:44:13 +0000 (16:44 +0000)]
sparc64: Fix build warnings in piggyback_64.c

This patch fixes the following build warnings:
arch/sparc/boot/piggyback_64.c: In function 'main':
arch/sparc/boot/piggyback_64.c:44: warning: 'end' may be used uninitialized in this function
arch/sparc/boot/piggyback_64.c:44: warning: 'start' may be used uninitialized in this function

Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosparc64: Don't use alloc_bootmem() in init_IRQ() code paths.
David S. Miller [Fri, 26 Jun 2009 02:00:47 +0000 (19:00 -0700)]
sparc64: Don't use alloc_bootmem() in init_IRQ() code paths.

The page allocator and SLAB are available at this point now,
and if we still try to use bootmem allocations here the kernel
spits out warnings.

Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Fri, 26 Jun 2009 00:04:37 +0000 (17:04 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (28 commits)
  drm: remove unused #include <linux/version.h>'s
  drm/radeon: fix driver initialization order so radeon kms can be builtin
  drm: Fix shifts which were miscalculated when converting from bitfields.
  drm/radeon: Clear surface registers at initialization time.
  drm/radeon: Don't initialize acceleration related fields of struct fb_info.
  drm/radeon: fix radeon kms framebuffer device
  drm/i915: initialize fence registers to zero when loading GEM
  drm/i915: Fix HDMI regression introduced in new chipset support
  drm/i915: fix LFP data fetch
  drm/i915: set TV detection mode when tv is already connected
  drm/i915: Catch up to obj_priv->page_list rename in disabled debug code.
  drm/i915: Fix size_t handling in off-by-default debug printfs
  drm/i915: Don't change the blank/sync width when calculating scaled modes
  drm/i915: Add support for changing LVDS panel fitting using an output property.
  drm/i915: correct suspend/resume ordering
  drm/i915: Add missing dependency on Intel AGP support.
  drm/i915: Generate 2MHz clock for display port aux channel I/O. Retry I/O.
  drm/i915: Clarify error returns from display port aux channel I/O
  drm/i915: Add CLKCFG register definition
  drm/i915: Split array of DAC limits into separate structures.
  ...

13 years agocifs: Fix incorrect return code being printed in cFYI messages
Suresh Jayaraman [Thu, 25 Jun 2009 12:42:34 +0000 (18:12 +0530)]
cifs: Fix incorrect return code being printed in cFYI messages

FreeXid() along with freeing Xid does add a cifsFYI debug message that
prints rc (return code) as well. In some code paths where we set/return
error code after calling FreeXid(), incorrect error code is being
printed when cifsFYI is enabled.

This could be misleading in few cases. For eg.
In cifs_open() if cifs_fill_filedata() returns a valid pointer to
cifsFileInfo, FreeXid() prints rc=-13 whereas 0 is actually being
returned. Fix this by setting rc before calling FreeXid().

Basically convert

FreeXid(xid); rc = -ERR;
return -ERR; => FreeXid(xid);
return rc;

[Note that Christoph would like to replace the GetXid/FreeXid
calls, which are primarily used for debugging.  This seems
like a good longer term goal, but although there is an
alternative tracing facility, there are no examples yet
available that I know of that we can use (yet) to
convert this cifs function entry/exit logging, and for
creating an identifier that we can use to correlate
all dmesg log entries for a particular vfs operation
(ie identify all log entries for a particular vfs
request to cifs: e.g. a particular close or read or write
or byte range lock call ... and just using the thread id
is harder).  Eventually when a replacement
for this is available (e.g. when NFS switches over and various
samples to look at in other file systems) we can remove the
GetXid/FreeXid macro but in the meantime multiple people
use this run time configurable logging all the time
for debugging, and Suresh's patch fixes a problem
which made it harder to notice some low
memory problems in the log so it is worthwhile
to fix this problem until a better logging
approach is able to be used]

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years agoMerge branch 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 25 Jun 2009 18:25:00 +0000 (11:25 -0700)]
Merge branch 'futexes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  futex: request only one page from get_user_pages()

13 years agousb_serial: Fix oops when unexisting usb serial device is opened.
Thadeu Lima de Souza Cascardo [Thu, 25 Jun 2009 13:41:37 +0000 (14:41 +0100)]
usb_serial: Fix oops when unexisting usb serial device is opened.

This commit 335f8514f200e63d689113d29cb7253a5c282967 has stopped
properly checking if there is any usb serial associated with the tty in
the close function. It happens the close function is called by releasing
the terminal right after opening the device fails.

As an example, open fails with a non-existing device, when probe has
never been called, because the device has never been plugged. This is
common in systems with static modules and no udev.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoacm: Fix oops when closing ACM tty device right after open has failed.
Thadeu Lima de Souza Cascardo [Thu, 25 Jun 2009 13:41:30 +0000 (14:41 +0100)]
acm: Fix oops when closing ACM tty device right after open has failed.

This commit 10077d4a6674f535abdbe25cdecb1202af7948f1 has stopped
checking if there was a valid acm device associated to the tty, which is
not true right after open fails and tty subsystem tries to close the
device.

As an example, open fails with a non-existing device, when probe has
never been called, because the device has never been plugged. This is
common in systems with static modules and no udev.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoacm: Return ENODEV instead of EINVAL when trying to open ACM device.
Thadeu Lima de Souza Cascardo [Thu, 25 Jun 2009 13:41:24 +0000 (14:41 +0100)]
acm: Return ENODEV instead of EINVAL when trying to open ACM device.

This is required, otherwise a user will get a EINVAL while opening a
non-existing device, instead of ENODEV.

This is what I get with this patch applied now instead of an "Invalid
argument".

  cascardo@vespa:~$ cat /dev/ttyACM0
  cat: /dev/ttyACM0: No such device
  cascardo@vespa:~$

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
Linus Torvalds [Thu, 25 Jun 2009 18:23:37 +0000 (11:23 -0700)]
Merge git://git./linux/kernel/git/davem/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  ide cs5520: Initialize second port's interrupt number.
  ide: improve handling of Power Management requests
  ide: add QUANTUM FIREBALLct20 30 with firmware APL.090 to ivb_list[]
  ide: relax DMA info validity checking
  ide-cd: Improve "weird block size" error message
  ide-cd: Don't warn on bogus block size unless it actually matters.
  ide: fix handling of unexpected IRQs vs request_irq()

13 years agoclarify get_user_pages() prototype
Peter Zijlstra [Thu, 25 Jun 2009 09:58:55 +0000 (11:58 +0200)]
clarify get_user_pages() prototype

Currently the 4th parameter of get_user_pages() is called len, but its
in pages, not bytes. Rename the thing to nr_pages to avoid future
confusion.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoUML: Fix some apparent bitrot
Paul Menage [Thu, 25 Jun 2009 07:17:15 +0000 (00:17 -0700)]
UML: Fix some apparent bitrot

UML: Fix some apparent bitrot

- migration of net_device methods into net_device_ops
- dma_sync_single() changes

Signed-off-by: Paul Menage <menage@google.com>
Acked-by: Amerigo Wang <xiyou.wangcong@gmail.com>
--

This version is split from my earlier patch, including just the
portions that ar required for Linus' tree.

Fixes the following compile errors:

include/linux/dma-mapping.h:113: error: redefinition of 'dma_sync_single'
arch/um/include/asm/dma-mapping.h:84: error: previous definition of 'dma_sync_single' was here
include/linux/dma-mapping.h: In function 'dma_sync_single':
include/linux/dma-mapping.h:117: error: implicit declaration of function 'dma_sync_single_for_cpu'
include/linux/dma-mapping.h: At top level:
include/linux/dma-mapping.h:120: error: redefinition of 'dma_sync_sg'
arch/um/include/asm/dma-mapping.h:91: error: previous definition of 'dma_sync_sg' was here
include/linux/dma-mapping.h: In function 'dma_sync_sg':
include/linux/dma-mapping.h:124: error: implicit declaration of function 'dma_sync_sg_for_cpu'

arch/um/drivers/slirp_kern.c: In function 'slirp_init':
arch/um/drivers/slirp_kern.c:35: error: 'struct net_device' has no member named 'init'
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoi2c: fix build bug in i2c-designware.c
Ingo Molnar [Thu, 25 Jun 2009 06:27:14 +0000 (08:27 +0200)]
i2c: fix build bug in i2c-designware.c

This build error triggers on x86:

 drivers/built-in.o: In function `i2c_dw_init':
 i2c-designware.c:(.text+0x4e37ca): undefined reference to `clk_get_rate'
 drivers/built-in.o: In function `dw_i2c_probe':
 i2c-designware.c:(.devinit.text+0x51f5e): undefined reference to `clk_get'
 i2c-designware.c:(.devinit.text+0x51f76): undefined reference to `clk_enable'
 i2c-designware.c:(.devinit.text+0x520ff): undefined reference to `clk_disable'
 i2c-designware.c:(.devinit.text+0x52108): undefined reference to `clk_put'

Because this new driver uses the clk_*() facilities which is an
ARM-only thing currently.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agofutex: request only one page from get_user_pages()
Thomas Gleixner [Thu, 25 Jun 2009 12:27:58 +0000 (14:27 +0200)]
futex: request only one page from get_user_pages()

Yanmin noticed that fault_in_user_writeable() requests 4 pages instead
of one.

That's the result of blindly trusting Linus' proposal :) I even looked
up the prototype to verify the correctness: the argument in question
is confusingly enough named "len" while in reality it means number of
pages.

Pointed-out-by: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
13 years ago[CIFS] cleanup asn handling for ntlmssp
Steve French [Thu, 25 Jun 2009 03:04:20 +0000 (03:04 +0000)]
[CIFS] cleanup asn handling for ntlmssp

Also removes obsolete distinction between rawntlmssp and ntlmssp (in asn/SPNEGO)
since as jra noted we can always send raw ntlmssp in session setup now.

remove check for experimental runtime flag (/proc/fs/cifs/Experimental) in
ntlmssp path.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years ago[CIFS] Copy struct *after* setting the port, instead of before.
Simo Leone [Thu, 25 Jun 2009 02:44:43 +0000 (02:44 +0000)]
[CIFS] Copy struct *after* setting the port, instead of before.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Simo Leone <simo@archlinux.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years agocifs: remove rw/ro options
Jeff Layton [Thu, 25 Jun 2009 04:56:55 +0000 (00:56 -0400)]
cifs: remove rw/ro options

cifs: remove rw/ro options

These options are handled at the VFS layer. They only ever set the
option in the smb_vol struct. Nothing was ever done with them afterward
anyway.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years agocifs: fix problems with earlier patches
Jeff Layton [Thu, 25 Jun 2009 04:56:54 +0000 (00:56 -0400)]
cifs: fix problems with earlier patches

cifs: fix problems with earlier patches

cifs_show_address hasn't been introduced yet, and fix a typo that was
silently fixed by a later patch in the series.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years agocifs: have cifs parse scope_id out of IPv6 addresses and use it
Jeff Layton [Thu, 11 Jun 2009 14:27:31 +0000 (10:27 -0400)]
cifs: have cifs parse scope_id out of IPv6 addresses and use it

This patch has CIFS look for a '%' in an IPv6 address. If one is
present then it will try to treat that value as a numeric interface
index suitable for stuffing into the sin6_scope_id field.

This should allow people to mount servers on IPv6 link-local addresses.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: David Holder <david@erion.co.uk>
Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years ago[CIFS] Do not send tree disconnect if session is already disconnected
Steve French [Thu, 25 Jun 2009 00:29:21 +0000 (00:29 +0000)]
[CIFS] Do not send tree disconnect if session is already disconnected

Noticed this when tree connect timed out (due to Samba server crash) -
we try to send a tree disconnect for a tid that does not exist
since we don't have a valid tree id yet. This checks that the
session is valid before sending the tree disconnect to handle
this case.

Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years agoLinux 2.6.31-rc1 v2.6.31-rc1
Linus Torvalds [Wed, 24 Jun 2009 23:25:37 +0000 (16:25 -0700)]
Linux 2.6.31-rc1

13 years agoRevert "PCI: use ACPI _CRS data by default"
Linus Torvalds [Wed, 24 Jun 2009 23:23:03 +0000 (16:23 -0700)]
Revert "PCI: use ACPI _CRS data by default"

This reverts commit 9e9f46c44e487af0a82eb61b624553e2f7118f5b.

Quoting from the commit message:

 "At this point, it seems to solve more problems than it causes, so let's
  try using it by default.  It's an easy revert if it ends up causing
  trouble."

And guess what? The _CRS code causes trouble.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.infradead.org/battery-2.6
Linus Torvalds [Wed, 24 Jun 2009 21:35:57 +0000 (14:35 -0700)]
Merge git://git.infradead.org/battery-2.6

* git://git.infradead.org/battery-2.6:
  da9030_battery: Fix race between event handler and monitor
  Add MAX17040 Fuel Gauge driver
  w1: ds2760_battery: add support for sleep mode feature
  w1: ds2760: add support for EEPROM read and write
  ds2760_battery: cleanups in ds2760_battery_probe()

13 years agoMerge branches 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro...
Linus Torvalds [Wed, 24 Jun 2009 21:17:14 +0000 (14:17 -0700)]
Merge branches 'for-linus' of git://git./linux/kernel/git/viro/{vfs-2.6,audit-current}

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  another race fix in jfs_check_acl()
  Get "no acls for this inode" right, fix shmem breakage
  inline functions left without protection of ifdef (acl)

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  audit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL

13 years agoanother race fix in jfs_check_acl()
Al Viro [Wed, 24 Jun 2009 21:02:42 +0000 (17:02 -0400)]
another race fix in jfs_check_acl()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoGet "no acls for this inode" right, fix shmem breakage
Al Viro [Wed, 24 Jun 2009 20:58:48 +0000 (16:58 -0400)]
Get "no acls for this inode" right, fix shmem breakage

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoaudit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL
Eric Paris [Wed, 24 Jun 2009 20:09:01 +0000 (16:09 -0400)]
audit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL

Even though one cannot make use of the audit watch code without
CONFIG_AUDIT_SYSCALL the spaghetti nature of the audit code means that
the audit rule filtering requires that it at least be compiled.

Thus build the audit_watch code when we build auditfilter like it was
before cfcad62c74abfef83762dc05a556d21bdf3980a2

Clearly this is a point of potential future cleanup..

Reported-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoinline functions left without protection of ifdef (acl)
Markus Trippelsdorf [Wed, 24 Jun 2009 20:28:52 +0000 (22:28 +0200)]
inline functions left without protection of ifdef (acl)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoMerge branch 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 24 Jun 2009 20:33:19 +0000 (13:33 -0700)]
Merge branch 'futexes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  futex: Fix the write access fault problem for real

13 years agofutex: Fix the write access fault problem for real
Thomas Gleixner [Thu, 11 Jun 2009 21:15:43 +0000 (23:15 +0200)]
futex: Fix the write access fault problem for real

commit 64d1304a64 (futex: setup writeable mapping for futex ops which
modify user space data) did address only half of the problem of write
access faults.

The patch was made on two wrong assumptions:

1) access_ok(VERIFY_WRITE,...) would actually check write access.

   On x86 it does _NOT_. It's a pure address range check.

2) a RW mapped region can not go away under us.

   That's wrong as well. Nobody can prevent another thread to call
   mprotect(PROT_READ) on that region where the futex resides. If that
   call hits between the get_user_pages_fast() verification and the
   actual write access in the atomic region we are toast again.

The solution is to not rely on access_ok and get_user() for any write
access related fault on private and shared futexes. Instead we need to
fault it in with verification of write access.

There is no generic non destructive write mechanism which would fault
the user page in trough a #PF, but as we already know that we will
fault we can as well call get_user_pages() directly and avoid the #PF
overhead.

If get_user_pages() returns -EFAULT we know that we can not fix it
anymore and need to bail out to user space.

Remove a bunch of confusing comments on this issue as well.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org
13 years agoSLUB: Don't pass __GFP_FAIL for the initial allocation
Pekka Enberg [Wed, 24 Jun 2009 18:59:51 +0000 (21:59 +0300)]
SLUB: Don't pass __GFP_FAIL for the initial allocation

SLUB uses higher order allocations by default but falls back to small
orders under memory pressure. Make sure the GFP mask used in the initial
allocation doesn't include __GFP_NOFAIL.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoDon't warn about order-1 allocations with __GFP_NOFAIL
Linus Torvalds [Wed, 24 Jun 2009 19:16:49 +0000 (12:16 -0700)]
Don't warn about order-1 allocations with __GFP_NOFAIL

Traditionally, we never failed small orders (even regardless of any
__GFP_NOFAIL flags), and slab will allocate order-1 allocations even for
small allocations that could fit in a single page (in order to avoid
excessive fragmentation).

Maybe we should remove this warning entirely, but before making that
judgement, at least limit it to bigger allocations.

Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Wed, 24 Jun 2009 17:47:38 +0000 (10:47 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  Staging: octeon-ethernet: Fix race freeing transmit buffers.
  Staging: octeon-ethernet: Convert to use net_device_ops.
  MIPS: Cavium: Add CPU hotplugging code.
  MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available
  MIPS: Add arch generic CPU hotplug
  DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set
  MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined.
  MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined.
  MIPS: Hibernation: Remove SMP TLB and cacheflushing code.
  MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.
  MIPS: bug.h Build fix - include <linux/compiler.h>.

13 years agoStaging: octeon-ethernet: Fix race freeing transmit buffers.
David Daney [Tue, 23 Jun 2009 23:20:56 +0000 (16:20 -0700)]
Staging: octeon-ethernet: Fix race freeing transmit buffers.

The existing code had the following race:

Thread-1                       Thread-2

inc/read in_use
                               inc/read in_use
inc tx_free_list[qos].len
                               inc tx_free_list[qos].len

The actual in_use value was incremented twice, but thread-1 is going
to free memory based on its stale value, and will free one too many
times.  The result is that memory is freed back to the kernel while
its packet is still in the transmit buffer.  If the memory is
overwritten before it is transmitted, the hardware will put a valid
checksum on it and send it out (just like it does with good packets).
If by chance the TCP flags are clobbered but not the addresses or
ports, the result can be a broken TCP stream.

The fix is to track the number of freed packets in a single location
(a Fetch-and-Add Unit register).  That way it can never get out of sync
with itself.

We try to free up to MAX_SKB_TO_FREE (currently 10) buffers at a time.
If fewer are available we adjust the free count with the difference.
The action of claiming buffers to free is atomic so two threads cannot
claim the same buffers.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoStaging: octeon-ethernet: Convert to use net_device_ops.
David Daney [Tue, 23 Jun 2009 18:34:08 +0000 (11:34 -0700)]
Staging: octeon-ethernet: Convert to use net_device_ops.

Convert the driver to use net_device_ops as it is now mandatory.

Also compensate for the removal of struct sk_buff's dst field.

The changes are mostly mechanical, the content of ethernet-common.c
was moved to ethernet.c and ethernet-common.{c,h} are removed.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Cavium: Add CPU hotplugging code.
Ralf Baechle [Tue, 23 Jun 2009 09:36:38 +0000 (10:36 +0100)]
MIPS: Cavium: Add CPU hotplugging code.

Thanks to Cavium Inc. for the code contribution and help.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: SMP: Allow suspend and hibernation if CPU hotplug is available
Ralf Baechle [Tue, 23 Jun 2009 09:20:56 +0000 (10:20 +0100)]
MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available

The SMP implementation of suspend and hibernate depends on CPU hotplugging.
In the past we didn't have CPU hotplug so suspend and hibernation were not
possible on SMP systems.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Add arch generic CPU hotplug
Ralf Baechle [Tue, 23 Jun 2009 09:00:31 +0000 (10:00 +0100)]
MIPS: Add arch generic CPU hotplug

Each platform has to add support for CPU hotplugging itself by providing
suitable definitions for the cpu_disable and cpu_die of the smp_ops
methods and setting SYS_SUPPORTS_HOTPLUG_CPU.  A platform should only set
SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the
necessary changes.  This patch contains the changes to the dummy smp_ops
definition for uni-processor systems.

Parts of the code contributed by Cavium Inc.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoDMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set
Atsushi Nemoto [Wed, 17 Jun 2009 20:08:31 +0000 (13:08 -0700)]
DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set

This patch does not change actual behaviour since dma_unmap_page is just
an alias of dma_unmap_single on MIPS.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined.
Ralf Baechle [Mon, 22 Jun 2009 15:17:52 +0000 (16:17 +0100)]
MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined.

This fixes kernel.org bugzilla 13596, see
http://bugzilla.kernel.org/show_bug.cgi?id=13596

Reported-by: dvice_null@yahoo.com
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined.
Ralf Baechle [Mon, 22 Jun 2009 14:48:27 +0000 (15:48 +0100)]
MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined.

This fixes kernel.org bugzilla 13595, see
http://bugzilla.kernel.org/show_bug.cgi?id=13595

Reported-by: dvice_null@yahoo.com
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Hibernation: Remove SMP TLB and cacheflushing code.
Ralf Baechle [Fri, 19 Jun 2009 14:01:44 +0000 (15:01 +0100)]
MIPS: Hibernation: Remove SMP TLB and cacheflushing code.

We can't perform any flushes on SMP from swsusp_arch_resume because
interrupts are disabled.  A cross-CPU flush is unnecessary anyway
because all but the local CPU have already been disabled.  A local
flush is not needed either because we didn't change any mappings.  So
just delete the code.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.
Ralf Baechle [Fri, 19 Jun 2009 13:05:26 +0000 (14:05 +0100)]
MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.

Some of the were relying into smp.h being dragged in by another header
which of course is fragile.  <asm/cpu-info.h> uses smp_processor_id()
only in macros and including smp.h there leads to an include loop, so
don't change cpu-info.h.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: bug.h Build fix - include <linux/compiler.h>.
Ralf Baechle [Fri, 19 Jun 2009 12:51:28 +0000 (13:51 +0100)]
MIPS: bug.h Build fix - include <linux/compiler.h>.

In the past this file somehow used to be dragged in.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
Linus Torvalds [Wed, 24 Jun 2009 17:26:54 +0000 (10:26 -0700)]
Merge git://git./linux/kernel/git/agk/linux-2.6-dm

* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (48 commits)
  dm mpath: change to be request based
  dm: disable interrupt when taking map_lock
  dm: do not set QUEUE_ORDERED_DRAIN if request based
  dm: enable request based option
  dm: prepare for request based option
  dm raid1: add userspace log
  dm: calculate queue limits during resume not load
  dm log: fix create_log_context to use logical_block_size of log device
  dm target:s introduce iterate devices fn
  dm table: establish queue limits by copying table limits
  dm table: replace struct io_restrictions with struct queue_limits
  dm table: validate device logical_block_size
  dm table: ensure targets are aligned to logical_block_size
  dm ioctl: support cookies for udev
  dm: sysfs add suspended attribute
  dm table: improve warning message when devices not freed before destruction
  dm mpath: add service time load balancer
  dm mpath: add queue length load balancer
  dm mpath: add start_io and nr_bytes to path selectors
  dm snapshot: use barrier when writing exception store
  ...

13 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb
Linus Torvalds [Wed, 24 Jun 2009 17:26:24 +0000 (10:26 -0700)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/dvrabel/uwb

* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb:
  uwb: allow WLP to be used with IPv6.
  uwb: event_size should be signed

13 years agoMerge branch 'audit.b63' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit...
Linus Torvalds [Wed, 24 Jun 2009 17:22:57 +0000 (10:22 -0700)]
Merge branch 'audit.b63' of git://git./linux/kernel/git/viro/audit-current

* 'audit.b63' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  Fix rule eviction order for AUDIT_DIR
  Audit: clean up all op= output to include string quoting
  Audit: move audit_get_nd completely into audit_watch
  audit: seperate audit inode watches into a subfile
  Audit: clean up audit_receive_skb
  Audit: cleanup netlink mesg handling
  Audit: unify the printk of an skb when auditd not around
  Audit: dereferencing krule as if it were an audit_watch
  Audit: better estimation of execve record length
  Audit: fix audit watch use after free

13 years agoMAINTAINERS: Change mailing list info for CRIS
Jesper Nilsson [Wed, 24 Jun 2009 07:33:19 +0000 (09:33 +0200)]
MAINTAINERS: Change mailing list info for CRIS

Posting to the dev-etrax mailing list is only allowed for subscribers,
and the list is more geared toward user applications than kernel
developers.

Change to newly created mailing list for CRIS.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Wed, 24 Jun 2009 17:17:07 +0000 (10:17 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (72 commits)
  asus-laptop: remove EXPERIMENTAL dependency
  asus-laptop: use pr_fmt and pr_<level>
  eeepc-laptop: cpufv updates
  eeepc-laptop: sync eeepc-laptop with asus_acpi
  asus_acpi: Deprecate in favor of asus-laptop
  acpi4asus: update MAINTAINER and KConfig links
  asus-laptop: platform dev as parent for led and backlight
  eeepc-laptop: enable camera by default
  ACPI: Rename ACPI processor device bus ID
  acerhdf: Acer Aspire One fan control
  ACPI: video: DMI workaround broken Acer 7720 BIOS enabling display brightness
  ACPI: run ACPI device hot removal in kacpi_hotplug_wq
  ACPI: Add the reference count to avoid unloading ACPI video bus twice
  ACPI: DMI to disable Vista compatibility on some Sony laptops
  ACPI: fix a deadlock in hotplug case
  Show the physical device node of backlight class device.
  ACPI: pdc init related memory leak with physical CPU hotplug
  ACPI: pci_root: remove unused dev/fn information
  ACPI: pci_root: simplify list traversals
  ACPI: pci_root: use driver data rather than list lookup
  ...

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Wed, 24 Jun 2009 17:03:12 +0000 (10:03 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (23 commits)
  switch xfs to generic acl caching helpers
  helpers for acl caching + switch to those
  switch shmem to inode->i_acl
  switch reiserfs to inode->i_acl
  switch reiserfs to usual conventions for caching ACLs
  reiserfs: minimal fix for ACL caching
  switch nilfs2 to inode->i_acl
  switch btrfs to inode->i_acl
  switch jffs2 to inode->i_acl
  switch jfs to inode->i_acl
  switch ext4 to inode->i_acl
  switch ext3 to inode->i_acl
  switch ext2 to inode->i_acl
  add caching of ACLs in struct inode
  fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls
  cleanup __writeback_single_inode
  ... and the same for vfsmount id/mount group id
  Make allocation of anon devices cheaper
  update Documentation/filesystems/Locking
  devpts: remove module-related code
  ...

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
Linus Torvalds [Wed, 24 Jun 2009 17:01:12 +0000 (10:01 -0700)]
Merge git://git./linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6:
  bnx2: Fix the behavior of ethtool when ONBOOT=no
  qla3xxx: Don't sleep while holding lock.
  qla3xxx: Give the PHY time to come out of reset.
  ipv4 routing: Ensure that route cache entries are usable and reclaimable with caching is off
  net: Move rx skb_orphan call to where needed
  ipv6: Use correct data types for ICMPv6 type and code
  net: let KS8842 driver depend on HAS_IOMEM
  can: let SJA1000 driver depend on HAS_IOMEM
  netxen: fix firmware init handshake
  netxen: fix build with without CONFIG_PM
  netfilter: xt_rateest: fix comparison with self
  netfilter: xt_quota: fix incomplete initialization
  netfilter: nf_log: fix direct userspace memory access in proc handler
  netfilter: fix some sparse endianess warnings
  netfilter: nf_conntrack: fix conntrack lookup race
  netfilter: nf_conntrack: fix confirmation race condition
  netfilter: nf_conntrack: death_by_timeout() fix

13 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Wed, 24 Jun 2009 16:57:10 +0000 (09:57 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-udf-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6:
  udf: remove redundant tests on unsigned
  udf: Use device size when drive reported bogus number of written blocks

13 years agoRemove low_latency flag setting from nozomi and mxser drivers
Chuck Ebbert [Wed, 24 Jun 2009 17:35:13 +0000 (18:35 +0100)]
Remove low_latency flag setting from nozomi and mxser drivers

The kernel oopses if this flag is set.

[and neither driver should set it as they call tty_flip_buffer_push from IRQ
 paths so have always been buggy]

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agotty: fix tty_port_block_til_ready waiting
Jiri Slaby [Wed, 24 Jun 2009 17:35:05 +0000 (18:35 +0100)]
tty: fix tty_port_block_til_ready waiting

Since commit 3e3b5c087799e536871c8261b05bc28e4783c8da ("tty: use
prepare/finish_wait"), tty_port_block_til_ready() is using
prepare_to_wait()/finish_wait().  Those functions require that the
wait_queue_t be initialised with .func=autoremove_wake_function, via
DEFINE_WAIT().

But the conversion from DECLARE_WAITQUEUE() to DEFINE_WAIT() was not made,
so this code will oops in finish_wait().

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agopci: use pci_ioremap_bar() in drivers/serial
Arjan van de Ven [Wed, 24 Jun 2009 17:34:58 +0000 (18:34 +0100)]
pci: use pci_ioremap_bar() in drivers/serial

Use the newly introduced pci_ioremap_bar() function in drivers/serial.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agosynclink_gt: fix transmit race and timeout
Paul Fulghum [Wed, 24 Jun 2009 17:34:51 +0000 (18:34 +0100)]
synclink_gt: fix transmit race and timeout

Fix race condition when adding transmit data to active DMA buffer ring
that can cause transmit stall.

Update transmit timeout when adding data to active DMA buffer ring.
Base transmit timeout on amount of buffered data instead of using fixed
value.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agojsm: clean up "serial: jsm: correctly support 4 8 port boards"
Andrew Morton [Wed, 24 Jun 2009 17:34:43 +0000 (18:34 +0100)]
jsm: clean up "serial: jsm: correctly support 4 8 port boards"

Remove unneeded casts.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agokgdb: kgdboc console poll hooks for serial_txx9 uart
Atsushi Nemoto [Wed, 24 Jun 2009 17:34:34 +0000 (18:34 +0100)]
kgdb: kgdboc console poll hooks for serial_txx9 uart

Implement the serial polling hooks for the serial_txx9 uart for use with
kgdboc.

This patch once got SOB from Jason on Jul 2008 and (perhaps) merged into
kgdb-next branch, but lost somewhere then.  I resend it now with Jason's
Acked-by.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoswitch xfs to generic acl caching helpers
Al Viro [Tue, 9 Jun 2009 17:29:39 +0000 (13:29 -0400)]
switch xfs to generic acl caching helpers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agohelpers for acl caching + switch to those
Al Viro [Tue, 9 Jun 2009 16:11:54 +0000 (12:11 -0400)]
helpers for acl caching + switch to those

helpers: get_cached_acl(inode, type), set_cached_acl(inode, type, acl),
forget_cached_acl(inode, type).

ubifs/xattr.c needed includes reordered, the rest is a plain switchover.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch shmem to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:56:00 +0000 (19:56 -0400)]
switch shmem to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch reiserfs to inode->i_acl
Al Viro [Tue, 9 Jun 2009 01:07:04 +0000 (21:07 -0400)]
switch reiserfs to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch reiserfs to usual conventions for caching ACLs
Al Viro [Tue, 9 Jun 2009 01:01:13 +0000 (21:01 -0400)]
switch reiserfs to usual conventions for caching ACLs

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoreiserfs: minimal fix for ACL caching
Al Viro [Tue, 9 Jun 2009 00:46:54 +0000 (20:46 -0400)]
reiserfs: minimal fix for ACL caching

reiserfs uses NULL as "unknown" and ERR_PTR(-ENODATA) as "no ACL";
several codepaths store the former instead of the latter.

All those codepaths go through iset_acl() and all cases when it's
called with NULL acl are for the second variety, so the minimal
fix is to teach iset_acl() to deal with that.

Proper fix is to switch to more usual conventions and avoid back
and forth between internally used ERR_PTR(-ENODATA) and NULL
expected by the rest of the kernel.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch nilfs2 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:56:34 +0000 (19:56 -0400)]
switch nilfs2 to inode->i_acl

Actually, get rid of private analog, since nothing in there is
using ACLs at all so far.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch btrfs to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:55:32 +0000 (19:55 -0400)]
switch btrfs to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch jffs2 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:55:12 +0000 (19:55 -0400)]
switch jffs2 to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch jfs to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:54:52 +0000 (19:54 -0400)]
switch jfs to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch ext4 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:54:26 +0000 (19:54 -0400)]
switch ext4 to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch ext3 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:53:58 +0000 (19:53 -0400)]
switch ext3 to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoswitch ext2 to inode->i_acl
Al Viro [Mon, 8 Jun 2009 23:52:55 +0000 (19:52 -0400)]
switch ext2 to inode->i_acl

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoadd caching of ACLs in struct inode
Al Viro [Mon, 8 Jun 2009 23:50:45 +0000 (19:50 -0400)]
add caching of ACLs in struct inode

No helpers, no conversions yet.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agofs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls
Ankit Jain [Fri, 19 Jun 2009 18:28:07 +0000 (14:28 -0400)]
fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls

This patch adds ioctls to vfs for compatibility with legacy XFS
pre-allocation ioctls (XFS_IOC_*RESVP*). The implementation
effectively invokes sys_fallocate for the new ioctls.
Also handles the compat_ioctl case.
Note: These legacy ioctls are also implemented by OCFS2.

[AV: folded fixes from hch]

Signed-off-by: Ankit Jain <me@ankitjain.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agocleanup __writeback_single_inode
Christoph Hellwig [Mon, 8 Jun 2009 11:35:40 +0000 (13:35 +0200)]
cleanup __writeback_single_inode

There is no reason to for the split between __writeback_single_inode and
__sync_single_inode, the former just does a couple of checks before
tail-calling the latter.  So merge the two, and while we're at it split
out the I_SYNC waiting case for data integrity writers, as it's
logically separate function.  Finally rename __writeback_single_inode to
writeback_single_inode.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years ago... and the same for vfsmount id/mount group id
Al Viro [Wed, 24 Jun 2009 07:12:00 +0000 (03:12 -0400)]
... and the same for vfsmount id/mount group id

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoMake allocation of anon devices cheaper
Al Viro [Wed, 24 Jun 2009 06:05:18 +0000 (02:05 -0400)]
Make allocation of anon devices cheaper

Standard trick - add a new variable (start) such that
for each n < start n is known to be busy.  Allocation can
skip checking everything in [0..start) and if it returns
n, we can set start to n + 1.  Freeing below start sets
start to what we'd just freed.

Of course, it still sucks if we do something like
free 0
allocate
allocate
in a loop - still O(n^2) time.  However, on saner loads it
improves the things a lot and the entire thing is not worth
the trouble of switching to something with better worst-case
behaviour.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoupdate Documentation/filesystems/Locking
Christoph Hellwig [Fri, 19 Jun 2009 18:22:37 +0000 (20:22 +0200)]
update Documentation/filesystems/Locking

The rules for locking in many superblock operations has changed
significantly, so update the documentation for it.  Also correct some
older updates and ommissions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agodevpts: remove module-related code
H. Peter Anvin [Wed, 17 Jun 2009 04:15:04 +0000 (21:15 -0700)]
devpts: remove module-related code

These days, the devpts filesystem is closely integrated with the pty
memory management, and cannot be built as a module, even less removed
from the kernel.  Accordingly, remove all module-related stuff from
this filesystem.

[ v2: only remove code that's actually dead ]

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoVFS: Switch init_mount_tree() to use the new create_mnt_ns() helper
Trond Myklebust [Tue, 23 Jun 2009 21:29:49 +0000 (17:29 -0400)]
VFS: Switch init_mount_tree() to use the new create_mnt_ns() helper

Eliminates some duplicated code...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agovfs: fix nd->root leak in do_filp_open()
J. R. Okajima [Thu, 18 Jun 2009 14:30:15 +0000 (23:30 +0900)]
vfs: fix nd->root leak in do_filp_open()

commit 2a737871108de9ba8930f7650d549f1383767f8b "Cache root in nameidata"
introduced a new member nd->root, but forgot to put it in do_filp_open().

Signed-off-by: J. R. Okajima <hooanon05@yahoo.co.jp>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoreiserfs: remove stray unlock_super in reiserfs_resize
Christoph Hellwig [Fri, 19 Jun 2009 08:30:07 +0000 (10:30 +0200)]
reiserfs: remove stray unlock_super in reiserfs_resize

Reiserfs doesn't use lock_super anywhere internally, and ->remount_fs
which calls reiserfs_resize does have it currently but also expects it
to be held on return, so there's no business for the unlock_super here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked by Edward Shishkin <edward.shishkin@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoudf: remove redundant tests on unsigned
Roel Kluin [Mon, 22 Jun 2009 21:12:29 +0000 (23:12 +0200)]
udf: remove redundant tests on unsigned

first_block and goal are unsigned. When negative they are wrapped and caught by
the other test.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
13 years agoide cs5520: Initialize second port's interrupt number.
David S. Miller [Wed, 24 Jun 2009 09:36:17 +0000 (02:36 -0700)]
ide cs5520: Initialize second port's interrupt number.

In 86ccf37c6acd74cf7e4b7751ee045de19943c5a0 the driver was modified
to deal with the removal of the pciirq argument to ide_pci_setup_ports().

But in the conversion only the first port's IRQ gets setup.

Inspired by a patch by Bartlomiej Zolnierkiewicz., and with help from
Alan Cox.

Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoide: improve handling of Power Management requests
Bartlomiej Zolnierkiewicz [Wed, 24 Jun 2009 06:52:17 +0000 (23:52 -0700)]
ide: improve handling of Power Management requests

Make hwif->rq point to PM request during PM sequence and do not allow
any other types of requests to slip in (the old comment was never correct
as there should be no such requests generated during PM sequence).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoide: add QUANTUM FIREBALLct20 30 with firmware APL.090 to ivb_list[]
Bartlomiej Zolnierkiewicz [Tue, 23 Jun 2009 23:11:10 +0000 (16:11 -0700)]
ide: add QUANTUM FIREBALLct20 30 with firmware APL.090 to ivb_list[]

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoide: relax DMA info validity checking
Bartlomiej Zolnierkiewicz [Mon, 22 Jun 2009 07:38:26 +0000 (07:38 +0000)]
ide: relax DMA info validity checking

There are some broken devices that report multiple DMA xfer modes
enabled at once (ATA spec doesn't allow it) but otherwise work fine
with DMA so just delete ide_id_dma_bug().

[ As discovered by detective work by Frans and Bart, due to how
  handling of the ID block was handled before commit c419993
  ("ide-iops: only clear DMA words on setting DMA mode") this
  check was always seeing zeros in the fields or other similar
  garbage.  Therefore this check wasn't actually checking anything.
  Now that the tests actually check the real bits, all we see are
  devices that trigger the check yet work perfectly fine, therefore
  killing this useless check is the best thing to do. -DaveM ]

Reported-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoide-cd: Improve "weird block size" error message
Frans Pop [Tue, 23 Jun 2009 23:02:58 +0000 (16:02 -0700)]
ide-cd: Improve "weird block size" error message

Currently the error gets repeated too frequently, for example each
time HAL polls the device when a disc is present. Avoid that by using
printk_once instead of printk.

Also join the error and corrective action messages into a single line.

Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoide-cd: Don't warn on bogus block size unless it actually matters.
David S. Miller [Tue, 23 Jun 2009 23:01:06 +0000 (16:01 -0700)]
ide-cd: Don't warn on bogus block size unless it actually matters.

Frans Pop reported that his CDROM drive reports a blocksize of 2352,
and this causes new warnings due to commit
e8e7b9eb11c34ee18bde8b7011af41938d1ad667 ("ide-cd: fix oops when using
growisofs").

What we're trying to do is make sure that "blocklen >> SECTOR_BITS"
is something the block layer won't choke on.

And for Frans' case "2352 >> SECTOR_BITS" is equal to
"2048 >> SECTOR_BITS", and thats "4".

So warning in this case gives no real benefit.

Reported-by: Frans Pop <elendil@planet.nl>
Tested-by: Frans Pop <elendil@planet.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoide: fix handling of unexpected IRQs vs request_irq()
Bartlomiej Zolnierkiewicz [Tue, 23 Jun 2009 10:43:00 +0000 (03:43 -0700)]
ide: fix handling of unexpected IRQs vs request_irq()

Add ide_host_enable_irqs() helper and use it in ide_host_register()
before registering ports.  Then remove no longer needed IRQ unmasking
from in init_irq().

This should fix the problem with "screaming" shared IRQ on the first
port (after request_irq() call while we have the unexpected IRQ pending
on the second port) which was uncovered by my rework of the serialized
interfaces support.

Reported-by: Frans Pop <elendil@planet.nl>
Tested-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobnx2: Fix the behavior of ethtool when ONBOOT=no
Ooiwa Naohiro [Wed, 24 Jun 2009 07:19:06 +0000 (00:19 -0700)]
bnx2: Fix the behavior of ethtool when ONBOOT=no

I found a little bug.

When configure in ifcfg-eth* is ONBOOT=no,
the behavior of ethtool command is wrong.

    # grep ONBOOT /etc/sysconfig/network-scripts/ifcfg-eth2
    ONBOOT=no
    # ethtool eth2 | tail -n1
            Link detected: yes

I think "Link detected" should be "no".

Signed-off-by: Ooiwa Naohiro <nooiwa@miraclelinux.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodrm: remove unused #include <linux/version.h>'s
Huang Weiyi [Wed, 24 Jun 2009 06:31:50 +0000 (16:31 +1000)]
drm: remove unused #include <linux/version.h>'s

Remove unused #include <linux/version.h>('s) in
 drivers/gpu/drm/ttm/ttm_bo_util.c
 drivers/gpu/drm/ttm/ttm_bo_vm.c
 drivers/gpu/drm/ttm/ttm_tt.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
13 years agoMerge remote branch 'origin/drm-intel-next' of ../drm-intel into drm-fixes
Dave Airlie [Wed, 24 Jun 2009 06:20:19 +0000 (16:20 +1000)]
Merge remote branch 'origin/drm-intel-next' of ../drm-intel into drm-fixes

13 years agodrm/radeon: fix driver initialization order so radeon kms can be builtin
Jerome Glisse [Mon, 22 Jun 2009 16:16:13 +0000 (18:16 +0200)]
drm/radeon: fix driver initialization order so radeon kms can be builtin

TTM need to be initialized before radeon if KMS is enabled otherwise
the kernel will crash hard.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>