diff options
Diffstat (limited to 'linuxthreads/spinlock.c')
| -rw-r--r-- | linuxthreads/spinlock.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/linuxthreads/spinlock.c b/linuxthreads/spinlock.c index 02ab9a9613..a63c6535c9 100644 --- a/linuxthreads/spinlock.c +++ b/linuxthreads/spinlock.c @@ -34,7 +34,7 @@ (status & 1) == 1: spinlock is taken and (status & ~1L) is a pointer to the first waiting thread; other - waiting threads are linked via the p_nextlock + waiting threads are linked via the p_nextlock field. (status & 1) == 0: same as above, but spinlock is not taken. @@ -149,8 +149,8 @@ int __pthread_unlock(struct _pthread_fastlock * lock) #endif #if !defined HAS_COMPARE_AND_SWAP { - lock->__spinlock = 0; WRITE_MEMORY_BARRIER(); + lock->__spinlock = 0; return 0; } #endif @@ -160,7 +160,7 @@ again: oldstatus = lock->__status; while ((oldstatus = lock->__status) == 1) { - if (__compare_and_swap_with_release_semantics(&lock->__status, + if (__compare_and_swap_with_release_semantics(&lock->__status, oldstatus, 0)) return 0; } |