Jens Axboe 163d66d4fb block: add cond_resched() to potentially long running ioctl discard loop ... commit c8123f8c9cb517403b51aa41c3c46ff5e10b2c17 upstream. When mkfs issues a full device discard and the device only supports discards of a smallish size, we can loop in blkdev_issue_discard() for a long time. If preempt isn't enabled, this can turn into a softlock situation and the kernel will start complaining. Add an explicit cond_resched() at the end of the loop to avoid that. Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-02-22 12:41:28 -08:00
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partitions
blk-cgroup.c
blk-cgroup.h	Update of blkg_stat and blkg_rwstat may happen in bh context. While u64_stats_fetch_retry is only preempt_disable on 32bit UP system. This is not enough to avoid preemption by bh and may read strange 64 bit value.	2013-12-11 22:36:27 -08:00
blk-core.c	elevator: Fix a race in elevator switching and md device initialization	2013-12-08 07:29:27 -08:00
blk-exec.c
blk-flush.c
blk-integrity.c
blk-ioc.c
blk-iopoll.c
blk-lib.c	block: add cond_resched() to potentially long running ioctl discard loop	2014-02-22 12:41:28 -08:00
blk-map.c
blk-merge.c
blk-settings.c	block: properly stack underlying max_segment_size to DM device	2013-11-29 11:11:51 -08:00
blk-softirq.c
blk-sysfs.c
blk-tag.c
blk-throttle.c
blk-timeout.c	block: fix race between request completion and timeout handling	2013-11-29 11:11:50 -08:00
blk.h	block: __elv_next_request() shouldn't call into the elevator if bypassing	2014-02-22 12:41:28 -08:00
bsg-lib.c
bsg.c
cfq-iosched.c	cfq: explicitly use 64bit divide operation for 64bit arguments	2013-10-01 09:17:48 -07:00
compat_ioctl.c
deadline-iosched.c	elevator: Fix a race in elevator switching	2013-08-20 08:43:03 -07:00
elevator.c	elevator: acquire q->sysfs_lock in elevator_change()	2013-12-08 07:29:27 -08:00
genhd.c	block: do not pass disk names as format strings	2013-07-13 11:42:26 -07:00
ioctl.c
Kconfig
Kconfig.iosched
Makefile
noop-iosched.c	elevator: Fix a race in elevator switching	2013-08-20 08:43:03 -07:00
partition-generic.c
scsi_ioctl.c