diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2011-02-08 15:18:00 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-02-08 16:18:39 +0100 |
| commit | 7ff207928eb0761fa6b6c39eda82ac07a5241acf (patch) | |
| tree | 10549042e6180c481f78dd0ea6f172a2f3de7e72 /kernel/timer.c | |
| parent | 100b33c8bd8a3235fd0b7948338d6cbb3db3c63d (diff) | |
| download | lwn-7ff207928eb0761fa6b6c39eda82ac07a5241acf.tar.gz lwn-7ff207928eb0761fa6b6c39eda82ac07a5241acf.zip | |
Revert "lockdep, timer: Fix del_timer_sync() annotation"
Both attempts at trying to allow softirq usage for
del_timer_sync() failed (produced bogus warnings),
so revert the commit for this release:
f266a5110d45: lockdep, timer: Fix del_timer_sync() annotation
and try again later.
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Yong Zhang <yong.zhang0@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <1297174680.13327.107.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/timer.c')
| -rw-r--r-- | kernel/timer.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index d53ce66daea0..d6459923d245 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 |