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| author | Jonathan Corbet <corbet@lwn.net> | 2011-04-22 19:19:10 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-24 13:18:38 +0200 |
| commit | 625f2a378e5a10f45fdc37932fc9f8a21676de9e (patch) | |
| tree | 1bf966a8e65463cdcc313c559533f032657c9dcf /kernel/mutex.c | |
| parent | sched: Remove obsolete comment from scheduler_tick() (diff) | |
| download | linux-625f2a378e5a10f45fdc37932fc9f8a21676de9e.tar.xz linux-625f2a378e5a10f45fdc37932fc9f8a21676de9e.zip | |
sched: Get rid of lock_depth
Neil Brown pointed out that lock_depth somehow escaped the BKL
removal work. Let's get rid of it now.
Note that the perf scripting utilities still have a bunch of
code for dealing with common_lock_depth in tracepoints; I have
left that in place in case anybody wants to use that code with
older kernels.
Suggested-by: Neil Brown <neilb@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20110422111910.456c0e84@bike.lwn.net
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/mutex.c')
| -rw-r--r-- | kernel/mutex.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/kernel/mutex.c b/kernel/mutex.c index fe4706cb0c5b..2c938e2337cd 100644 --- a/kernel/mutex.c +++ b/kernel/mutex.c @@ -163,13 +163,6 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, struct task_struct *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. */ |