diff options
| author |   Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2014-04-07 15:37:04 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-07 16:35:51 -0700 |
| commit | 01ead5340bcf5f3a1cd2452c75516d0ef4d908d7 (patch) | |
| tree | eabccdd2c4f1b399ab04e0cc4ed8acff9f2d0281 /include/linux/memory_hotplug.h | |
| parent | mm/compaction: disallow high-order page for migration target (diff) | |
mm/compaction: do not call suitable_migration_target() on every page
suitable_migration_target() checks that pageblock is suitable for
migration target. In isolate_freepages_block(), it is called on every
page and this is inefficient. So make it called once per pageblock.
suitable_migration_target() also checks if page is highorder or not, but
it's criteria for highorder is pageblock order. So calling it once
within pageblock range has no problem.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/memory_hotplug.h')
0 files changed, 0 insertions, 0 deletions