diff options
| author | Anton Altaparmakov <aia21@hera.kernel.org> | 2006-03-23 17:05:47 +0000 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@hera.kernel.org> | 2006-03-23 17:05:47 +0000 |
| commit | a05ba4561fa3ad8b64a27577d0d38c190f60f762 (patch) | |
| tree | 5eb7561113e006b7bad0bef50dec6821962b1b36 /kernel/spinlock.c | |
| parent | 74293759002aa7db0179158c20676a034614577b (diff) | |
| parent | b0e6e962992b76580f4900b166a337bad7c1e81b (diff) | |
Merge branch 'master' of /home/aia21/ntfs-2.6/
Diffstat (limited to 'kernel/spinlock.c')
| -rw-r--r-- | kernel/spinlock.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/spinlock.c b/kernel/spinlock.c index 0375fcd5921..d1b810782bc 100644 --- a/kernel/spinlock.c +++ b/kernel/spinlock.c @@ -179,16 +179,16 @@ EXPORT_SYMBOL(_write_lock); #define BUILD_LOCK_OPS(op, locktype) \ void __lockfunc _##op##_lock(locktype##_t *lock) \ { \ - preempt_disable(); \ for (;;) { \ + preempt_disable(); \ if (likely(_raw_##op##_trylock(lock))) \ break; \ preempt_enable(); \ + \ if (!(lock)->break_lock) \ (lock)->break_lock = 1; \ while (!op##_can_lock(lock) && (lock)->break_lock) \ cpu_relax(); \ - preempt_disable(); \ } \ (lock)->break_lock = 0; \ } \ @@ -199,19 +199,18 @@ unsigned long __lockfunc _##op##_lock_irqsave(locktype##_t *lock) \ { \ unsigned long flags; \ \ - preempt_disable(); \ for (;;) { \ + preempt_disable(); \ local_irq_save(flags); \ if (likely(_raw_##op##_trylock(lock))) \ break; \ local_irq_restore(flags); \ - \ preempt_enable(); \ + \ if (!(lock)->break_lock) \ (lock)->break_lock = 1; \ while (!op##_can_lock(lock) && (lock)->break_lock) \ cpu_relax(); \ - preempt_disable(); \ } \ (lock)->break_lock = 0; \ return flags; \ |