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| author |   Mikulas Patocka <mpatocka@redhat.com> | 2015-02-02 09:39:02 -0500 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2015-02-03 12:14:25 +0100 |
| commit | 3e87523897e18a3e17fc8955ed795188be737ff1 (patch) | |
| tree | ef9955c7911ca95c7881f8e0371115a6d16fdf0b /kernel | |
| parent | sched: Fix crash if cpuset_cpumask_can_shrink() is passed an empty cpumask (diff) | |
| download | linux-dev-3e87523897e18a3e17fc8955ed795188be737ff1.tar.xz linux-dev-3e87523897e18a3e17fc8955ed795188be737ff1.zip | |
sched/wait: Remove might_sleep() from wait_event_cmd()
The patch e22b886a8a43 ("sched/wait: Add might_sleep() checks")
introduced a bug in the raid5 subsystem.
The function raid5_quiesce() (and resize_stripes()) uses the 'cmd'
part to release and acquire a spinlock (so we call the sleep
primitives in atomic context), and therefore we cannot do the
might_sleep() check.
Remove it.
Fixes: e22b886a8a43 ("sched/wait: Add might_sleep() checks")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/alpine.LRH.2.02.1502020935580.13510@file01.intranet.prod.int.rdu2.redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions