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| author |   Zoltan Menyhart <Zoltan.Menyhart@bull.net> | 2006-01-13 17:25:23 +0100 |
|---|---|---|
| committer |   Tony Luck <tony.luck@intel.com> | 2006-01-17 14:04:00 -0800 |
| commit | 4b16bfbf8f8013fefb49592d030ff87651ab48cb (patch) | |
| tree | ce9150f8ceac6150261f5bc69afdf9d2e95def19 /kernel/signal.c | |
| parent | [IA64] Zonelists for nodes without cpus (diff) | |
| download | wireguard-linux-4b16bfbf8f8013fefb49592d030ff87651ab48cb.tar.xz wireguard-linux-4b16bfbf8f8013fefb49592d030ff87651ab48cb.zip | |
[IA64] Fix bug in ia64 specific down() function
Chen, Kenneth W wrote:
> The memory order semantics for include/asm-ia64/semaphore.h:down()
> doesn't look right. It is using atomic_dec_return, which eventually
> translate into ia64_fetch_and_add() that uses release semantics.
> Shouldn't it use acquire semantics?
Use ia64_fetchadd() instead of atomic_dec_return()
Acked-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'kernel/signal.c')
0 files changed, 0 insertions, 0 deletions