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| author | Peter Zijlstra <[email protected]> | 2015-12-13 21:11:16 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2015-12-13 22:30:59 +0000 |
| commit | dfd01f026058a59a513f8a365b439a0681b803af (patch) | |
| tree | 45f12f19bb6f9f3b7632134fbba32f2da584ef1f /drivers/gpu/drm/omapdrm/omap_fbdev.c | |
| parent | Merge tag 'nfs-for-4.4-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs (diff) | |
| download | kernel-dfd01f026058a59a513f8a365b439a0681b803af.tar.gz kernel-dfd01f026058a59a513f8a365b439a0681b803af.zip | |
sched/wait: Fix the signal handling fix
Jan Stancek reported that I wrecked things for him by fixing things for
Vladimir :/
His report was due to an UNINTERRUPTIBLE wait getting -EINTR, which
should not be possible, however my previous patch made this possible by
unconditionally checking signal_pending().
We cannot use current->state as was done previously, because the
instruction after the store to that variable it can be changed. We must
instead pass the initial state along and use that.
Fixes: 68985633bccb ("sched/wait: Fix signal handling in bit wait helpers")
Reported-by: Jan Stancek <[email protected]>
Reported-by: Chris Mason <[email protected]>
Tested-by: Jan Stancek <[email protected]>
Tested-by: Vladimir Murzin <[email protected]>
Tested-by: Chris Mason <[email protected]>
Reviewed-by: Paul Turner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: [email protected]
Cc: Oleg Nesterov <[email protected]>
Cc: [email protected]
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_fbdev.c')
0 files changed, 0 insertions, 0 deletions