diff options
| author | Oleg Nesterov <oleg@tv-sign.ru> | 2008-04-04 20:54:10 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-04-17 12:22:31 +0200 |
| commit | 8e60e05fdc7344415fa69a3883b11f65db967b47 (patch) | |
| tree | a0b13c31670221906e8d48cb7bf47dc8f8043918 /include/linux/hrtimer.h | |
| parent | 0d180406f2914aea3a78ddb880e2fe9ac78a9372 (diff) | |
hrtimers: simplify lockdep handling
In order to avoid the false positive from lockdep, each per-cpu base->lock has
the separate lock class and migrate_hrtimers() uses double_spin_lock().
This is overcomplicated: except for migrate_hrtimers() we never take 2 locks
at once, and migrate_hrtimers() can use spin_lock_nested().
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/hrtimer.h')
| -rw-r--r-- | include/linux/hrtimer.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 1ad56a7b2f7..56f3236da82 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -173,7 +173,6 @@ struct hrtimer_clock_base { * struct hrtimer_cpu_base - the per cpu clock bases * @lock: lock protecting the base and associated clock bases * and timers - * @lock_key: the lock_class_key for use with lockdep * @clock_base: array of clock bases for this cpu * @curr_timer: the timer which is executing a callback right now * @expires_next: absolute time of the next event which was scheduled @@ -189,7 +188,6 @@ struct hrtimer_clock_base { */ struct hrtimer_cpu_base { spinlock_t lock; - struct lock_class_key lock_key; struct hrtimer_clock_base clock_base[HRTIMER_MAX_CLOCK_BASES]; struct list_head cb_pending; #ifdef CONFIG_HIGH_RES_TIMERS |