Commit bde304bd authored by Xishi Qiu's avatar Xishi Qiu Committed by Linus Torvalds

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: default avatarXishi Qiu <qiuxishi@huawei.com>
Reviewed-by: default avatarYasuaki 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a2c1aad3
...@@ -5675,8 +5675,11 @@ static void __init find_zone_movable_pfns_for_nodes(void) ...@@ -5675,8 +5675,11 @@ static void __init find_zone_movable_pfns_for_nodes(void)
required_kernelcore = max(required_kernelcore, corepages); 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; goto out;
/* usable_startpfn is the lowest possible pfn ZONE_MOVABLE can be at */ /* usable_startpfn is the lowest possible pfn ZONE_MOVABLE can be at */
......
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