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| author |   Andrew Morton <akpm@osdl.org> | 2005-12-23 19:54:46 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2005-12-24 12:13:27 -0800 |
| commit | 8e31108b9f41069d55cb9b019ac8262c55fd2616 (patch) | |
| tree | 4d3b74956402b978417ee1026fa18409773cd72e /ipc | |
| parent | [PATCH] add missing memory barriers to ipc/sem.c (diff) | |
| download | linux-dev-8e31108b9f41069d55cb9b019ac8262c55fd2616.tar.xz linux-dev-8e31108b9f41069d55cb9b019ac8262c55fd2616.zip | |
[PATCH] Fix memory ordering problem in wake_futex()
Fix a memory ordering problem that occurs on IA64. The "store" to q->lock_ptr
in wake_futex() can become visible before wake_up_all() clears the lock in the
futex_q.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions