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| author | Michel Lespinasse <walken@google.com> | 2013-05-07 17:45:56 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-07 18:20:16 +0400 |
| commit | a7d2c573ae7fad1b2c877d1a1342fa5bb0d6478c (patch) | |
| tree | 1494f94f71a299d32a3584565a538e5ffdef1163 /ipc | |
| parent | 5ede972df1cd9294c82e9515949fd2103be81d7b (diff) | |
| download | linux-a7d2c573ae7fad1b2c877d1a1342fa5bb0d6478c.tar.xz | |
rwsem: avoid taking wait_lock in rwsem_down_write_failed
In rwsem_down_write_failed(), if there are active locks after we wake up
(i.e. the lock got stolen from us), skip taking the wait_lock and go
back to sleep immediately.
Signed-off-by: Michel Lespinasse <walken@google.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions