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authorAnton Blanchard <anton@samba.org>2011-01-29 12:26:19 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-02-07 13:06:01 +1100
commitd69043e8069f493ebee9472bcc78b3f54c5c27d9 (patch)
tree8b94f0000312fc3295e28b3d3a0c25074b62c71f /arch/powerpc/mm
parent5de1669910a59025e6cf24baef242a6c264d5752 (diff)
downloadlinaro-lsk-d69043e8069f493ebee9472bcc78b3f54c5c27d9.tar.gz
powerpc/numa: Check for all VPHN changes
The hypervisor uses unsigned 1 byte counters to signal topology changes to the OS. Since they can wrap we need to check for any difference, not just if the hypervisor count is greater than the previous count. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r--arch/powerpc/mm/numa.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f25633d3d00..b2937efdfd7 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1341,7 +1341,7 @@ static int update_cpu_associativity_changes_mask(void)
volatile u8 *hypervisor_counts = lppaca[cpu].vphn_assoc_counts;
for (i = 0; i < distance_ref_points_depth; i++) {
- if (hypervisor_counts[i] > counts[i]) {
+ if (hypervisor_counts[i] != counts[i]) {
counts[i] = hypervisor_counts[i];
changed = 1;
}