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authorJack Steiner <steiner@sgi.com>2006-01-24 17:32:11 -0500
committerTony Luck <tony.luck@intel.com>2006-01-24 17:39:50 -0500
commit79c83bd15af3b06079a9205db9c64c92ca1bd868 (patch)
treea3f00aa68d7a203154bafe711b2371cc1b76cb73 /arch
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>
Diffstat (limited to 'arch')
-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)
1283 1283
1284 if (jiffies - last_time > 5*HZ) 1284 if (jiffies - last_time > 5*HZ)
1285 count = 0; 1285 count = 0;
1286 if (++count < 5) { 1286 if (count < 5) {
1287 last_time = jiffies; 1287 last_time = jiffies;
1288 count++;
1288 return 1; 1289 return 1;
1289 } 1290 }
1290 return 0; 1291 return 0;