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| author | Paul Mundt <lethal@linux-sh.org> | 2010-05-31 12:59:19 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-05-31 12:59:19 +0900 |
| commit | 8fa76f7e61ef4e5bc97207143ea4e198b22487bc (patch) | |
| tree | 266c42b6687e68e4febb72d8c031e5facd899a1c /kernel/mutex.c | |
| parent | a41a7b91772da2c77ac0da74285fd8ebd86a85ba (diff) | |
| parent | 67a3e12b05e055c0415c556a315a3d3eb637e29e (diff) | |
| download | cachepc-linux-8fa76f7e61ef4e5bc97207143ea4e198b22487bc.tar.gz cachepc-linux-8fa76f7e61ef4e5bc97207143ea4e198b22487bc.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
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 632f04c57d82..4c0b7b3e6d2e 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. */ |