diff options
| author |   Jack Steiner <steiner@sgi.com> | 2006-01-24 16:32:11 -0600 |
|---|---|---|
| committer |   Tony Luck <tony.luck@intel.com> | 2006-01-24 14:39:50 -0800 |
| commit | 79c83bd15af3b06079a9205db9c64c92ca1bd868 (patch) | |
| tree | a3f00aa68d7a203154bafe711b2371cc1b76cb73 /arch/ia64 | |
| parent | [IA64-SGI] sn_dma_alloc_coherent should use gfp flags (diff) | |
| download | linux-dev-79c83bd15af3b06079a9205db9c64c92ca1bd868.tar.xz linux-dev-79c83bd15af3b06079a9205db9c64c92ca1bd868.zip | |
[IA64] Scaling fix for simultaneous unaligned accesses
Eliminate a hot shared cacheline that occurs if multiple cpus are
taking unaligned exceptions.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/kernel/unaligned.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c index 43b45b65ee5a..f9e0ae936d1a 100644 --- a/arch/ia64/kernel/unaligned.c +++ b/arch/ia64/kernel/unaligned.c @@ -1283,8 +1283,9 @@ within_logging_rate_limit (void) if (jiffies - last_time > 5*HZ) count = 0; - if (++count < 5) { + if (count < 5) { last_time = jiffies; + count++; return 1; } return 0; |