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| author | David S. Miller <davem@davemloft.net> | 2010-06-26 10:27:00 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-26 10:27:00 -0700 |
| commit | c67dda14389205f0a223c5089307495290939b3b (patch) | |
| tree | fad0bb26b28703d02a22ebdd44d94eabac4a2ade /kernel/mutex.c | |
| parent | 43bc2db47292a824152145253b1dd2847e7312a3 (diff) | |
| parent | 7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff) | |
Merge branch 'master' of /home/davem/src/GIT/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. */ |