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| author | Ulrich Drepper <drepper@redhat.com> | 2003-05-30 16:32:35 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-05-30 16:32:35 +0000 |
| commit | 4761520e934209d9c28851ba3d51a2be18ea5379 (patch) | |
| tree | d6035fb9358df67120b03f2976640cd1f49b3a28 /nptl/sysdeps | |
| parent | 2b1c0eeae3100fc8dc64909a80ea34b2be49bf88 (diff) | |
| download | glibc-4761520e934209d9c28851ba3d51a2be18ea5379.tar.gz glibc-4761520e934209d9c28851ba3d51a2be18ea5379.tar.xz glibc-4761520e934209d9c28851ba3d51a2be18ea5379.zip | |
(lll_mutex_cond_lock): Add one to value parameter of __lll_lock_wait to reflect reality in the futex syscall.
Diffstat (limited to 'nptl/sysdeps')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h index 877483b22c..eba0ade252 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h @@ -118,7 +118,10 @@ extern void __lll_lock_wait (int *futex, int val) attribute_hidden; int __val = atomic_exchange_and_add (__futex, 2); \ __asm __volatile (__lll_acq_instr ::: "memory"); \ 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); \ }) extern int __lll_timedlock_wait |