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| author | Mel Gorman | 2012-01-13 02:19:26 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2012-01-13 05:13:08 +0100 |
| commit | b16d3d5a5219d01e9be5e586e5d50fbf1ca955ea (patch) | |
| tree | 790422876526d780e1b66dd47ae522bfa3b73484 /mm/compaction.c | |
| parent | mm: compaction: allow compaction to isolate dirty pages (diff) | |
| download | kernel-qcow2-linux-b16d3d5a5219d01e9be5e586e5d50fbf1ca955ea.tar.gz kernel-qcow2-linux-b16d3d5a5219d01e9be5e586e5d50fbf1ca955ea.tar.xz kernel-qcow2-linux-b16d3d5a5219d01e9be5e586e5d50fbf1ca955ea.zip | |
mm: compaction: use synchronous compaction for /proc/sys/vm/compact_memory
When asynchronous compaction was introduced, the
/proc/sys/vm/compact_memory handler should have been updated to always use
synchronous compaction. This did not happen so this patch addresses it.
The assumption is if a user writes to /proc/sys/vm/compact_memory, they
are willing for that process to stall.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Andy Isaacson <adi@hexapodia.org>
Cc: Nai Xia <nai.xia@gmail.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 396ea2b47f7e..d31e64becb38 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -668,6 +668,7 @@ static int compact_node(int nid) .nr_freepages = 0, .nr_migratepages = 0, .order = -1, + .sync = true, }; zone = &pgdat->node_zones[zoneid]; |