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| author | Toshi Kani <toshi.kani@hp.com> | 2013-03-13 14:59:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-03-13 15:21:44 -0700 |
| commit | f8749452adcddd62e3707709ec2ae4856e70a3f2 (patch) | |
| tree | 68258d007b645f51a0597d1f6f9ee53d2f92f3c8 /mm | |
| parent | ebf47beb660e5580df7bee06d5cf9d37c0f22fac (diff) | |
| download | lwn-f8749452adcddd62e3707709ec2ae4856e70a3f2.tar.gz lwn-f8749452adcddd62e3707709ec2ae4856e70a3f2.zip | |
mm: remove_memory(): fix end_pfn setting
remove_memory() calls walk_memory_range() with [start_pfn, end_pfn), where
end_pfn is exclusive in this range. Therefore, end_pfn needs to be set to
the next page of the end address.
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Wu Jianguo <wujianguo@huawei.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@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/memory_hotplug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index b81a367b9f39..9597eec8239d 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1801,7 +1801,7 @@ int __ref remove_memory(int nid, u64 start, u64 size) int retry = 1; start_pfn = PFN_DOWN(start); - end_pfn = start_pfn + PFN_DOWN(size); + end_pfn = PFN_UP(start + size - 1); /* * When CONFIG_MEMCG is on, one memory block may be used by other |