sched/wait: Remove might_sleep() from wait_event_cmd()
The patche22b886a8a
("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:e22b886a8a
("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>
This commit is contained in:
parent
bb2bc55a69
commit
3e87523897
|
@ -363,7 +363,6 @@ do { \
|
|||
*/
|
||||
#define wait_event_cmd(wq, condition, cmd1, cmd2) \
|
||||
do { \
|
||||
might_sleep(); \
|
||||
if (condition) \
|
||||
break; \
|
||||
__wait_event_cmd(wq, condition, cmd1, cmd2); \
|
||||
|
|
Loading…
Reference in a new issue