diff options
| author | akpm@osdl.org | 2005-05-01 17:58:47 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2005-05-01 17:58:47 +0200 |
| commit | d59dd4620fb8d6422555a9e2b82a707718e68327 (patch) | |
| tree | 78205657d24efcaa3f8314064951ac3814ed95a7 /kernel/timer.c | |
| parent | [PATCH] ppc64: use smp_mb and smp_wmb (diff) | |
| download | kernel-qcow2-linux-d59dd4620fb8d6422555a9e2b82a707718e68327.tar.gz kernel-qcow2-linux-d59dd4620fb8d6422555a9e2b82a707718e68327.tar.xz kernel-qcow2-linux-d59dd4620fb8d6422555a9e2b82a707718e68327.zip | |
[PATCH] use smp_mb/wmb/rmb where possible
Replace a number of memory barriers with smp_ variants. This means we won't
take the unnecessary hit on UP machines.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/timer.c')
| -rw-r--r-- | kernel/timer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index ecb3d67c0e14..207aa4f0aa10 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1007,7 +1007,7 @@ asmlinkage long sys_getppid(void) * Make sure we read the pid before re-reading the * parent pointer: */ - rmb(); + smp_rmb(); parent = me->group_leader->real_parent; if (old != parent) continue; |