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| author | Ulrich Drepper <drepper@redhat.com> | 2006-03-02 00:25:56 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-03-02 00:25:56 +0000 |
| commit | 42b6ddfca528a12ff7b4065e8ca8c2631d754260 (patch) | |
| tree | d97dee2b539207dee491c0347a1e5ee78c67491d /nptl | |
| parent | c99445f897367f658bb3c0da1cf5a8a8620931aa (diff) | |
| download | glibc-42b6ddfca528a12ff7b4065e8ca8c2631d754260.zip glibc-42b6ddfca528a12ff7b4065e8ca8c2631d754260.tar.gz glibc-42b6ddfca528a12ff7b4065e8ca8c2631d754260.tar.bz2 | |
(__lll_robust_lock_wait): Also set FUTEX_WAITERS buit if we got the mutex. (__lll_robust_timedlock_wait): Likewise.
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S | 2 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S index 1c516c7..ff09745 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S @@ -74,6 +74,7 @@ __lll_robust_mutex_lock_wait: jne 4b movl %gs:TID, %edx + orl $FUTEX_WAITERS, %edx LOCK cmpxchgl %edx, (%ebx) jnz 4b @@ -163,6 +164,7 @@ __lll_robust_mutex_timedlock_wait: jne 7f movl %gs:TID, %edx + orl $FUTEX_WAITERS, %edx LOCK cmpxchgl %edx, (%ebx) jnz 7f diff --git a/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c b/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c index b7faeaf..3e88ee1 100644 --- a/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c +++ b/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c @@ -42,7 +42,9 @@ __lll_robust_lock_wait (int *futex) lll_futex_wait (futex, newval); } - while ((oldval = atomic_compare_and_exchange_val_acq (futex, tid, 0)) != 0); + while ((oldval = atomic_compare_and_exchange_val_acq (futex, + tid | FUTEX_WAITERS, + 0)) != 0); return 0; } @@ -89,7 +91,7 @@ __lll_robust_timedlock_wait (int *futex, const struct timespec *abstime) lll_futex_timed_wait (futex, newval, &rt); } - while (atomic_compare_and_exchange_bool_acq (futex, tid, 0)); + while (atomic_compare_and_exchange_bool_acq (futex, tid | FUTEX_WAITERS, 0)); return 0; } |