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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-07-17 20:08:38 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-02-13 22:20:46 (GMT) |
| commit | 0623bc2dddc5fef9659d652cede0af467e437473 (patch) | |
| tree | e351ea0d8d6229446d39e6cafceb4e51c1d8d387 /include | |
| parent | 1aa3f1a3a6b35843dc824e8aaad6420d476e5dcd (diff) | |
| download | linux-fsl-qoriq-0623bc2dddc5fef9659d652cede0af467e437473.tar.xz | |
timer-handle-idle-trylock-in-get-next-timer-irq.patch
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/spinlock_rt.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/spinlock_rt.h b/include/linux/spinlock_rt.h index 621d857..447c457 100644 --- a/include/linux/spinlock_rt.h +++ b/include/linux/spinlock_rt.h @@ -50,7 +50,17 @@ extern void __lockfunc __rt_spin_unlock(struct rt_mutex *lock); #define spin_lock_irq(lock) spin_lock(lock) -#define spin_trylock(lock) __cond_lock(lock, rt_spin_trylock(lock)) +#define spin_do_trylock(lock) __cond_lock(lock, rt_spin_trylock(lock)) + +#define spin_trylock(lock) \ +({ \ + int __locked; \ + migrate_disable(); \ + __locked = spin_do_trylock(lock); \ + if (!__locked) \ + migrate_enable(); \ + __locked; \ +}) #ifdef CONFIG_LOCKDEP # define spin_lock_nested(lock, subclass) \ |