diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2008-11-12 13:27:01 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-12 17:17:17 -0800 |
| commit | 33c5d3d64589c5d379db5a5615735f6d08438369 (patch) | |
| tree | 83027e5c9ade4c4f352685bb15cd66d5b98e76a3 | |
| parent | 6cdfcc275e40b89fb020da1088ead86a61d33115 (diff) | |
| download | lwn-33c5d3d64589c5d379db5a5615735f6d08438369.tar.gz lwn-33c5d3d64589c5d379db5a5615735f6d08438369.zip | |
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>
| -rw-r--r-- | mm/page_cgroup.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c index f59d797dc5a9..1223d927904d 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) |