Richard Kennedy a59bb6a18c block: ensure jiffies wrap is handled correctly in blk_rq_timed_out_timer ...

commit a534dbe96e upstream.

blk_rq_timed_out_timer() relied on blk_add_timer() never returning a
timer value of zero, but commit 7838c15b8d
removed the code that bumped this value when it was zero.
Therefore when jiffies is near wrap we could get unlucky & not set the
timeout value correctly.

This patch uses a flag to indicate that the timeout value was set and so
handles jiffies wrap correctly, and it keeps all the logic in one
function so should be easier to maintain in the future.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2010-05-12 14:57:05 -07:00

..

as-iosched.c

percpu: clean up percpu variable definitions

2009-06-24 15:13:48 +09:00

blk-barrier.c

block: allow large discard requests

2009-10-01 21:19:34 +02:00

blk-core.c

block: silently error unsupported empty barriers too

2009-10-24 14:14:31 +02:00

blk-exec.c

block: don't set REQ_NOMERGE unnecessarily

2009-04-28 07:37:33 +02:00

blk-integrity.c

block: fix improper kobject release in blk_integrity_unregister

2009-07-28 09:11:14 +02:00

blk-ioc.c

block: prevent possible io_context->refcount overflow

2009-06-10 23:07:15 +02:00

blk-iopoll.c

block: use interrupts disabled version of raise_softirq_irqoff()

2009-09-11 14:33:32 +02:00

blk-map.c

block: Use accessor functions for queue limits

2009-05-22 23:22:54 +02:00

blk-merge.c

block: Seperate read and write statistics of in_flight requests v2

2009-10-06 20:16:55 +02:00

blk-settings.c

block: Backport of various I/O topology fixes from 2.6.33 and 2.6.34

2010-04-01 15:58:56 -07:00

blk-softirq.c

generic-ipi: remove CSD_FLAG_WAIT

2009-02-25 14:13:44 +01:00

blk-sysfs.c

Add missing blk_trace_remove_sysfs to be in pair with blk_trace_init_sysfs

2009-10-01 21:15:46 +02:00

blk-tag.c

block: use proper BLK_RW_ASYNC in blk_queue_start_tag()

2009-10-06 20:19:02 +02:00

blk-timeout.c

block: ensure jiffies wrap is handled correctly in blk_rq_timed_out_timer

2010-05-12 14:57:05 -07:00

blk.h

block: implement mixed merge of different failfast requests

2009-09-11 14:33:30 +02:00

bsg.c

Driver-Core: extend devnode callbacks to provide permissions

2009-09-19 12:50:38 -07:00

cfq-iosched.c

cfq-iosched: limit coop preemption

2009-11-03 20:25:02 +01:00

compat_ioctl.c

block: Topology ioctls

2009-10-03 20:52:01 +02:00

deadline-iosched.c

block: convert to pos and nr_sectors accessors

2009-05-11 09:50:54 +02:00

elevator.c

elv_iosched_store(): fix strstrip() misuse

2009-10-09 08:48:08 +02:00

genhd.c

block: Seperate read and write statistics of in_flight requests v2

2009-10-06 20:16:55 +02:00

ioctl.c

block: Topology ioctls

2009-10-03 20:52:01 +02:00

Kconfig

Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG

2009-08-04 22:10:17 +02:00

Kconfig.iosched

update I/O sched Kconfig help texts - CFQ is now default, not AS.

2007-02-17 20:08:22 +01:00

Makefile

block: add blk-iopoll, a NAPI like approach for block devices

2009-09-11 14:33:31 +02:00

noop-iosched.c

block: get rid of elevator_t typedef

2008-12-29 08:29:50 +01:00

scsi_ioctl.c

block: call blk_scsi_ioctl_init()

2009-07-10 20:31:53 +02:00