diff options
| author | Peter Zijlstra <[email protected]> | 2015-12-01 13:04:04 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-12-04 09:10:15 +0000 |
| commit | 68985633bccb6066bf1803e316fbc6c1f5b796d6 (patch) | |
| tree | 0756c924eb126f00b1a6c45db30ac6c0893c1327 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | sched/rt: Hide the push_irq_work_func() declaration (diff) | |
| download | kernel-68985633bccb6066bf1803e316fbc6c1f5b796d6.tar.gz kernel-68985633bccb6066bf1803e316fbc6c1f5b796d6.zip | |
sched/wait: Fix signal handling in bit wait helpers
Vladimir reported getting RCU stall warnings and bisected it back to
commit:
743162013d40 ("sched: Remove proliferation of wait_on_bit() action functions")
That commit inadvertently reversed the calls to schedule() and signal_pending(),
thereby not handling the case where the signal receives while we sleep.
Reported-by: Vladimir Murzin <[email protected]>
Tested-by: Vladimir Murzin <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Fixes: 743162013d40 ("sched: Remove proliferation of wait_on_bit() action functions")
Fixes: cbbce8220949 ("SCHED: add some "wait..on_bit...timeout()" interfaces.")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions