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authorJack Steiner <steiner@sgi.com>2006-01-24 16:32:11 -0600
committerTony Luck <tony.luck@intel.com>2006-01-24 14:39:50 -0800
commit79c83bd15af3b06079a9205db9c64c92ca1bd868 (patch)
treea3f00aa68d7a203154bafe711b2371cc1b76cb73
parentdc64161343015162a3fabfcd20b9b84409af67d5 (diff)
[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>
-rw-r--r--arch/ia64/kernel/unaligned.c3
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;