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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2008-11-12 13:27:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-12 17:17:17 -0800
commit33c5d3d64589c5d379db5a5615735f6d08438369 (patch)
tree83027e5c9ade4c4f352685bb15cd66d5b98e76a3 /mm
parent6cdfcc275e40b89fb020da1088ead86a61d33115 (diff)
downloadlinux-2.6.34-ux500-33c5d3d64589c5d379db5a5615735f6d08438369.tar.gz
memcg: bugfix for memory hotplug
The start pfn calculation in page_cgroup's memory hotplug notifier chain is wrong. Tested-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_cgroup.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index f59d797dc5a..1223d927904 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -165,7 +165,7 @@ int online_page_cgroup(unsigned long start_pfn,
unsigned long start, end, pfn;
int fail = 0;
- start = start_pfn & (PAGES_PER_SECTION - 1);
+ start = start_pfn & ~(PAGES_PER_SECTION - 1);
end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
for (pfn = start; !fail && pfn < end; pfn += PAGES_PER_SECTION) {
@@ -188,7 +188,7 @@ int offline_page_cgroup(unsigned long start_pfn,
{
unsigned long start, end, pfn;
- start = start_pfn & (PAGES_PER_SECTION - 1);
+ start = start_pfn & ~(PAGES_PER_SECTION - 1);
end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION)