diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h index 525869b302..b7f018b9a1 100644 --- a/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h @@ -142,7 +142,10 @@ __lll_mutex_cond_lock (int *futex) int val = atomic_exchange_and_add (futex, 2); if (__builtin_expect (val != 0, 0)) - __lll_lock_wait (futex, val); + /* Note, the val + 1 is kind of ugly here. __lll_lock_wait will add + 1 again. But we added 2 to the futex value so this is the right + value which will be passed to the kernel. */ + __lll_lock_wait (futex, val + 1); } #define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex)) |