Commit 51aad0a51582e4147380137ba34785663a1b5f93
Committed by
Jiri Slaby
1 parent
fc915114c8
Exists in
ti-linux-3.12.y
and in
2 other branches
mm: page_alloc: abort fair zone allocation policy when remotes nodes are encountered
commit f7b5d647946aae1647bf5cd26c16b3a793c1ac49 upstream. The purpose of numa_zonelist_order=zone is to preserve lower zones for use with 32-bit devices. If locality is preferred then the numa_zonelist_order=node policy should be used. Unfortunately, the fair zone allocation policy overrides this by skipping zones on remote nodes until the lower one is found. While this makes sense from a page aging and performance perspective, it breaks the expected zonelist policy. This patch restores the expected behaviour for zone-list ordering. Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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mm/page_alloc.c