Messages in this thread Patch in this message | | | Date | Tue, 15 Feb 2011 18:02:16 +0100 | From | Ingo Molnar <> | Subject | [GIT PULL] locking fix |
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Linus,
Please pull the latest core-fixes-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git core-fixes-for-linus
Thanks,
Ingo
------------------> Peter Zijlstra (1): Revert "lockdep, timer: Fix del_timer_sync() annotation"
kernel/timer.c | 8 +++----- 1 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/kernel/timer.c b/kernel/timer.c index d53ce66..d645992 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -959,7 +959,7 @@ EXPORT_SYMBOL(try_to_del_timer_sync); * * Synchronization rules: Callers must prevent restarting of the timer, * otherwise this function is meaningless. It must not be called from - * hardirq contexts. The caller must not hold locks which would prevent + * interrupt contexts. The caller must not hold locks which would prevent * completion of the timer's handler. The timer's handler must not call * add_timer_on(). Upon exit the timer is not queued and the handler is * not running on any CPU. @@ -971,12 +971,10 @@ int del_timer_sync(struct timer_list *timer) #ifdef CONFIG_LOCKDEP unsigned long flags; - raw_local_irq_save(flags); - local_bh_disable(); + local_irq_save(flags); lock_map_acquire(&timer->lockdep_map); lock_map_release(&timer->lockdep_map); - _local_bh_enable(); - raw_local_irq_restore(flags); + local_irq_restore(flags); #endif /* * don't use it in hardirq context, because it
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