diff options
| author | Xishi Qiu <qiuxishi@huawei.com> | 2015-11-05 18:48:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | bde304bdf4ec4a5f58cc1e90fe2d9cd2d96304c4 (patch) | |
| tree | d9adda3338bf50c3ce47b1d884689e0d3db848e1 | |
| parent | a2c1aad3b5fccbb948878b75f9b8f13248666fd6 (diff) | |
mm/page_alloc.c: skip ZONE_MOVABLE if required_kernelcore is larger than totalpages
If kernelcore was not specified, or the kernelcore size is zero
(required_movablecore >= totalpages), or the kernelcore size is larger
than totalpages, there is no ZONE_MOVABLE. We should fill the zone with
both kernel memory and movable memory.
Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: <zhongjiang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/page_alloc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 86f7d952e2cc..06e62300d627 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5675,8 +5675,11 @@ static void __init find_zone_movable_pfns_for_nodes(void) required_kernelcore = max(required_kernelcore, corepages); } - /* If kernelcore was not specified, there is no ZONE_MOVABLE */ - if (!required_kernelcore) + /* + * If kernelcore was not specified or kernelcore size is larger + * than totalpages, there is no ZONE_MOVABLE. + */ + if (!required_kernelcore || required_kernelcore >= totalpages) goto out; /* usable_startpfn is the lowest possible pfn ZONE_MOVABLE can be at */ |