Tejun Heo c98b2cc29a block: remove WARN_ON_ONCE() in exit_io_context() ... 6e736be7 "block: make ioc get/put interface more conventional and fix race on alloction" added WARN_ON_ONCE() in exit_io_context() which triggers if !PF_EXITING. All tasks hitting exit_io_context() from task exit should have PF_EXITING set but task struct tearing down after fork failure calls into the function without PF_EXITING, triggering the condition. WARNING: at block/blk-ioc.c:234 exit_io_context+0x40/0x92() Pid: 17090, comm: trinity Not tainted 3.2.0-rc6-next-20111222-sasha-dirty #77 Call Trace: [<ffffffff810b69a3>] warn_slowpath_common+0x8f/0xb2 [<ffffffff810b6a77>] warn_slowpath_null+0x18/0x1a [<ffffffff8181a7a2>] exit_io_context+0x40/0x92 [<ffffffff810b58c9>] copy_process+0x126f/0x1453 [<ffffffff810b5c1b>] do_fork+0x120/0x3e9 [<ffffffff8106242f>] sys_clone+0x26/0x28 [<ffffffff82425803>] stub_clone+0x13/0x20 ---[ end trace a2e4eb670b375238 ]--- Reported-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2011-12-27 18:52:16 +01:00
..
blk-cgroup.c	block, cfq: unlink cfq_io_context's immediately	2011-12-14 00:33:39 +01:00
blk-cgroup.h	block: fix a typo in the blk-cgroup.h file	2011-10-24 16:08:38 +02:00
blk-core.c	block, cfq: move icq creation and rq->elv.icq association to block core	2011-12-14 00:33:42 +01:00
blk-exec.c	block: add missing blk_queue_dead() checks	2011-12-14 00:33:37 +01:00
blk-flush.c	blk-flush: move the queue kick into	2011-10-24 16:24:31 +02:00
blk-integrity.c	block: add export.h to files using EXPORT_SYMBOL/THIS_MODULE macros	2011-10-31 19:31:12 -04:00
blk-ioc.c	block: remove WARN_ON_ONCE() in exit_io_context()	2011-12-27 18:52:16 +01:00
blk-iopoll.c	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
blk-lib.c	block: fix patch import error in max_discard_sectors check	2011-07-23 20:34:59 +02:00
blk-map.c	block: Always check length of all iov entries in blk_rq_map_user_iov()	2011-11-13 19:58:09 +01:00
blk-merge.c	block: attempt to merge with existing requests on plug flush	2011-03-21 10:14:27 +01:00
blk-settings.c	block: Fix discard topology stacking and reporting	2011-05-18 10:37:35 +02:00
blk-softirq.c	block: Don't check QUEUE_FLAG_SAME_COMP in __blk_complete_request	2011-09-14 09:31:01 +02:00
blk-sysfs.c	block, cfq: move io_cq exit/release to blk-ioc.c	2011-12-14 00:33:42 +01:00
blk-tag.c	block: warn if tag is greater than real_max_depth.	2011-10-25 10:20:05 +02:00
blk-throttle.c	block: add blk_queue_dead()	2011-12-14 00:33:37 +01:00
blk-timeout.c	fault-injection: add ability to export fault_attr in arbitrary directory	2011-08-03 14:25:20 -10:00
blk.h	block, cfq: move icq creation and rq->elv.icq association to block core	2011-12-14 00:33:42 +01:00
bsg-lib.c	block: Change module.h -> export.h in bsg-lib.c	2011-10-31 19:31:13 -04:00
bsg.c	block: misc updates to blk_get_queue()	2011-12-14 00:33:38 +01:00
cfq-iosched.c	block, cfq: fix empty queue crash caused by request merge	2011-12-16 14:00:22 +01:00
cfq.h	blk-cgroup: Add unaccounted time to timeslice_used.	2011-03-12 16:54:00 +01:00
compat_ioctl.c	compat_ioctl: fix warning caused by qemu	2011-07-01 22:32:26 +02:00
deadline-iosched.c	block, cfq: move icq cache management to block core	2011-12-14 00:33:42 +01:00
elevator.c	block: recursive merge requests	2011-12-16 14:00:31 +01:00
genhd.c	block: misc updates to blk_get_queue()	2011-12-14 00:33:38 +01:00
ioctl.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
Kconfig	block: add bsg helper library	2011-07-31 22:05:09 +02:00
Kconfig.iosched	blk-cgroup: config options re-arrangement	2010-04-26 19:27:56 +02:00
Makefile	block: add bsg helper library	2011-07-31 22:05:09 +02:00
noop-iosched.c	block, cfq: move icq cache management to block core	2011-12-14 00:33:42 +01:00
scsi_ioctl.c	block: drop unnecessary blk_get/put_queue() in scsi_cmd_ioctl() and blk_get_tg()	2011-10-19 14:31:25 +02:00