diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S index 96ea35caac..dc65b709a1 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S @@ -132,9 +132,8 @@ __lll_mutex_timedlock_wait: ENTER_KERNEL movl %eax, %ecx -8: +8: /* NB: %edx == 2 */ xorl %eax, %eax - movl $2, %edx LOCK cmpxchgl %edx, (%ebx) @@ -150,6 +149,12 @@ __lll_mutex_timedlock_wait: /* Check whether the time expired. */ 7: cmpl $-ETIMEDOUT, %ecx je 5f + + /* Make sure the current holder knows we are going to sleep. */ + movl %edx, %eax + xchgl %eax, (%ebx) + testl %eax, %eax + jz 6b jmp 1b 3: movl $EINVAL, %eax |