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| author | Jens Axboe <jaxboe@fusionio.com> | 2010-06-01 10:42:12 (GMT) |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-06-01 10:42:12 (GMT) |
| commit | b4ca761577535b2b4d153689ee97342797dfff05 (patch) | |
| tree | 29054d55508f1faa22ec32acf7c245751af03348 /kernel/mutex.c | |
| parent | 28f4197e5d4707311febeec8a0eb97cb5fd93c97 (diff) | |
| parent | 67a3e12b05e055c0415c556a315a3d3eb637e29e (diff) | |
| download | linux-b4ca761577535b2b4d153689ee97342797dfff05.tar.xz | |
Merge branch 'master' into for-linus
Conflicts:
fs/pipe.c
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'kernel/mutex.c')
| -rw-r--r-- | kernel/mutex.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/mutex.c b/kernel/mutex.c index 632f04c..4c0b7b3 100644 --- a/kernel/mutex.c +++ b/kernel/mutex.c @@ -172,6 +172,13 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, struct thread_info *owner; /* + * If we own the BKL, then don't spin. The owner of + * the mutex might be waiting on us to release the BKL. + */ + if (unlikely(current->lock_depth >= 0)) + break; + + /* * If there's an owner, wait for it to either * release the lock or go to sleep. */ |