F: drivers/platform/x86/acer-wmi.c
ACPI
-M: Len Brown <lenb@kernel.org>
M: Rafael J. Wysocki <rjw@rjwysocki.net>
+M: Len Brown <lenb@kernel.org>
L: linux-acpi@vger.kernel.org
W: https://01.org/linux-acpi
Q: https://patchwork.kernel.org/project/linux-acpi/list/
F: arch/arm/mach-footbridge/
ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
-M: Shawn Guo <shawn.guo@linaro.org>
+M: Shawn Guo <shawn.guo@freescale.com>
M: Sascha Hauer <kernel@pengutronix.de>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-T: git git://git.linaro.org/people/shawnguo/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
F: arch/arm/mach-imx/
F: arch/arm/boot/dts/imx*
F: arch/arm/configs/imx*_defconfig
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
F: arch/arm/mach-u300/
+F: drivers/clocksource/timer-u300.c
F: drivers/i2c/busses/i2c-stu300.c
F: drivers/rtc/rtc-coh901331.c
F: drivers/watchdog/coh901327_wdt.c
F: include/net/bluetooth/
BONDING DRIVER
-M: Jay Vosburgh <fubar@us.ibm.com>
-M: Veaceslav Falico <vfalico@redhat.com>
+M: Jay Vosburgh <j.vosburgh@gmail.com>
+M: Veaceslav Falico <vfalico@gmail.com>
M: Andy Gospodarek <andy@greyhouse.net>
L: netdev@vger.kernel.org
W: http://sourceforge.net/projects/bonding/
F: include/linux/bcma/
BROCADE BFA FC SCSI DRIVER
-M: Anil Gurumurthy <agurumur@brocade.com>
-M: Vijaya Mohan Guvva <vmohan@brocade.com>
+M: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
+M: Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>
L: linux-scsi@vger.kernel.org
S: Supported
F: drivers/scsi/bfa/
S: Odd Fixes
F: sound/soc/codecs/cs4270*
+CIRRUS LOGIC AUDIO CODEC DRIVERS
+M: Brian Austin <brian.austin@cirrus.com>
+M: Paul Handrigan <Paul.Handrigan@cirrus.com>
+L: alsa-devel@alsa-project.org (moderated for non-subscribers)
+S: Maintained
+F: sound/soc/codecs/cs*
+
CLEANCACHE API
M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
L: linux-kernel@vger.kernel.org
F: drivers/acpi/dock.c
DOCUMENTATION
-M: Rob Landley <rob@landley.net>
+M: Randy Dunlap <rdunlap@infradead.org>
L: linux-doc@vger.kernel.org
-T: TBD
+T: quilt http://www.infradead.org/~rdunlap/Doc/patches/
S: Maintained
F: Documentation/
F: fs/freevxfs/
FREEZER
-M: Pavel Machek <pavel@ucw.cz>
M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
+M: Pavel Machek <pavel@ucw.cz>
L: linux-pm@vger.kernel.org
S: Supported
F: Documentation/power/freezing-of-tasks.txt
F: drivers/video/hgafb.c
HIBERNATION (aka Software Suspend, aka swsusp)
-M: Pavel Machek <pavel@ucw.cz>
M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
+M: Pavel Machek <pavel@ucw.cz>
L: linux-pm@vger.kernel.org
S: Supported
F: arch/x86/power/
M: Alex Duyck <alexander.h.duyck@intel.com>
M: John Ronciak <john.ronciak@intel.com>
M: Mitch Williams <mitch.a.williams@intel.com>
+M: Linux NICS <linux.nics@intel.com>
L: e1000-devel@lists.sourceforge.net
W: http://www.intel.com/support/feedback.htm
W: http://e1000.sourceforge.net/
F: arch/powerpc/platforms/52xx/
LINUX FOR POWERPC EMBEDDED PPC4XX
-M: Josh Boyer <jwboyer@gmail.com>
+M: Alistair Popple <alistair@popple.id.au>
M: Matt Porter <mporter@kernel.crashing.org>
W: http://www.penguinppc.org/
L: linuxppc-dev@lists.ozlabs.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx.git
S: Maintained
F: arch/powerpc/platforms/40x/
F: arch/powerpc/platforms/44x/
S: Supported
F: drivers/watchdog/mena21_wdt.c
+MEN CHAMELEON BUS (mcb)
+M: Johannes Thumshirn <johannes.thumshirn@men.de>
+S: Supported
+F: drivers/mcb/
+F: include/linux/mcb.h
+
METAG ARCHITECTURE
M: James Hogan <james.hogan@imgtec.com>
L: linux-metag@vger.kernel.org
F: include/uapi/linux/in.h
F: include/uapi/linux/net.h
F: include/uapi/linux/netdevice.h
+F: tools/net/
+F: tools/testing/selftests/net/
+F: lib/random32.c
NETWORKING [IPv4/IPv6]
M: "David S. Miller" <davem@davemloft.net>
S: Supported
F: arch/s390/
F: drivers/s390/
-F: block/partitions/ibm.c
F: Documentation/s390/
F: Documentation/DocBook/s390*
+S390 COMMON I/O LAYER
+M: Sebastian Ott <sebott@linux.vnet.ibm.com>
+M: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
+L: linux-s390@vger.kernel.org
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: drivers/s390/cio/
+
+S390 DASD DRIVER
+M: Stefan Weinhuber <wein@de.ibm.com>
+M: Stefan Haberland <stefan.haberland@de.ibm.com>
+L: linux-s390@vger.kernel.org
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: drivers/s390/block/dasd*
+F: block/partitions/ibm.c
+
S390 NETWORK DRIVERS
M: Ursula Braun <ursula.braun@de.ibm.com>
M: Frank Blaschka <blaschka@linux.vnet.ibm.com>
S: Supported
F: drivers/s390/net/
+S390 PCI SUBSYSTEM
+M: Sebastian Ott <sebott@linux.vnet.ibm.com>
+M: Gerald Schaefer <gerald.schaefer@de.ibm.com>
+L: linux-s390@vger.kernel.org
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: arch/s390/pci/
+F: drivers/pci/hotplug/s390_pci_hpc.c
+
S390 ZCRYPT DRIVER
M: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
M: linux390@de.ibm.com
F: drivers/tty/serial/ioc?_serial.c
F: include/linux/ioc?.h
-SGI VISUAL WORKSTATION 320 AND 540
-M: Andrey Panin <pazke@donpac.ru>
-L: linux-visws-devel@lists.sf.net
-W: http://linux-visws.sf.net
-S: Maintained for 2.6.
-F: Documentation/sgi-visws.txt
-
SGI XP/XPC/XPNET DRIVER
M: Cliff Whickman <cpw@sgi.com>
M: Robin Holt <robinmholt@gmail.com>
S: Odd Fixes
F: drivers/staging/sm7xxfb/
+STAGING - SLICOSS
+M: Lior Dotan <liodot@gmail.com>
+M: Christopher Harrer <charrer@alacritech.com>
+S: Odd Fixes
+F: drivers/staging/slicoss/
+
STAGING - SOFTLOGIC 6x10 MPEG CODEC
M: Ismael Luceno <ismael.luceno@corp.bluecherry.net>
S: Supported
F: drivers/sh/
SUSPEND TO RAM
+M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
M: Len Brown <len.brown@intel.com>
M: Pavel Machek <pavel@ucw.cz>
-M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
L: linux-pm@vger.kernel.org
S: Supported
F: Documentation/power/
F: include/linux/cdrom.h
F: include/uapi/linux/cdrom.h
+UNISYS S-PAR DRIVERS
+M: Benjamin Romer <benjamin.romer@unisys.com>
+M: David Kershner <david.kershner@unisys.com>
+L: sparmaintainer@unisys.com (Unisys internal)
+S: Supported
+F: drivers/staging/unisys/
+
UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER
M: Vinayak Holikatti <vinholikatti@gmail.com>
M: Santosh Y <santoshsy@gmail.com>
F: drivers/net/wireless/ath/ar5523/
USB ATTACHED SCSI
-M: Matthew Wilcox <willy@linux.intel.com>
-M: Sarah Sharp <sarah.a.sharp@linux.intel.com>
+M: Hans de Goede <hdegoede@redhat.com>
M: Gerd Hoffmann <kraxel@redhat.com>
L: linux-usb@vger.kernel.org
L: linux-scsi@vger.kernel.org
F: drivers/net/wireless/rndis_wlan.c
USB XHCI DRIVER
-M: Sarah Sharp <sarah.a.sharp@linux.intel.com>
+M: Mathias Nyman <mathias.nyman@intel.com>
L: linux-usb@vger.kernel.org
S: Supported
F: drivers/usb/host/xhci*
VIRTIO CONSOLE DRIVER
M: Amit Shah <amit.shah@redhat.com>
- L: virtio-dev@lists.oasis-open.org
L: virtualization@lists.linux-foundation.org
S: Maintained
F: drivers/char/virtio_console.c
VIRTIO CORE, NET AND BLOCK DRIVERS
M: Rusty Russell <rusty@rustcorp.com.au>
M: "Michael S. Tsirkin" <mst@redhat.com>
- L: virtio-dev@lists.oasis-open.org
L: virtualization@lists.linux-foundation.org
S: Maintained
F: drivers/virtio/
VIRTIO HOST (VHOST)
M: "Michael S. Tsirkin" <mst@redhat.com>
L: kvm@vger.kernel.org
- L: virtio-dev@lists.oasis-open.org
L: virtualization@lists.linux-foundation.org
L: netdev@vger.kernel.org
S: Maintained
S: Maintained
F: drivers/tty/serial/uartlite.c
+XTENSA XTFPGA PLATFORM SUPPORT
+M: Max Filippov <jcmvbkbc@gmail.com>
+L: linux-xtensa@linux-xtensa.org
+S: Maintained
+F: drivers/spi/spi-xtensa-xtfpga.c
+
YAM DRIVER FOR AX.25
M: Jean-Paul Roubelat <jpr@f6fbb.org>
L: linux-hams@vger.kernel.org
unsigned long flags;
unsigned int num;
const bool last = (req->cmd_flags & REQ_END) != 0;
+ int err;
BUG_ON(req->nr_phys_segments + 2 > vblk->sg_elems);
}
spin_lock_irqsave(&vblk->vq_lock, flags);
- if (__virtblk_add_req(vblk->vq, vbr, vbr->sg, num) < 0) {
+ err = __virtblk_add_req(vblk->vq, vbr, vbr->sg, num);
+ if (err) {
virtqueue_kick(vblk->vq);
spin_unlock_irqrestore(&vblk->vq_lock, flags);
blk_mq_stop_hw_queue(hctx);
- return BLK_MQ_RQ_QUEUE_BUSY;
+ /* Out of mem doesn't actually happen, since we fall back
+ * to direct descriptors */
+ if (err == -ENOMEM || err == -ENOSPC)
+ return BLK_MQ_RQ_QUEUE_BUSY;
+ return BLK_MQ_RQ_QUEUE_ERROR;
}
if (last)
static struct blk_mq_reg virtio_mq_reg = {
.ops = &virtio_mq_ops,
.nr_hw_queues = 1,
- .queue_depth = 64,
+ .queue_depth = 0, /* Set in virtblk_probe */
.numa_node = NUMA_NO_NODE,
.flags = BLK_MQ_F_SHOULD_MERGE,
};
+ module_param_named(queue_depth, virtio_mq_reg.queue_depth, uint, 0444);
-static void virtblk_init_vbr(void *data, struct blk_mq_hw_ctx *hctx,
+static int virtblk_init_vbr(void *data, struct blk_mq_hw_ctx *hctx,
struct request *rq, unsigned int nr)
{
struct virtio_blk *vblk = data;
struct virtblk_req *vbr = rq->special;
sg_init_table(vbr->sg, vblk->sg_elems);
+ return 0;
}
static int virtblk_probe(struct virtio_device *vdev)
goto out_free_vq;
}
+ /* Default queue sizing is to fill the ring. */
+ if (!virtio_mq_reg.queue_depth) {
+ virtio_mq_reg.queue_depth = vblk->vq->num_free;
+ /* ... but without indirect descs, we use 2 descs per req */
+ if (!virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC))
+ virtio_mq_reg.queue_depth /= 2;
+ }
virtio_mq_reg.cmd_size =
sizeof(struct virtblk_req) +
sizeof(struct scatterlist) * sg_elems;