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| author | David Rientjes <rientjes@google.com> | 2014-04-03 14:47:23 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-09 12:21:28 -0700 |
| commit | 67c58ce60024b9b3d9cf203da994bf265aa7e369 (patch) | |
| tree | 54ceee432f16b92aeb20645570adf6ec9d7de855 /mm | |
| parent | e8cd5b562a4bfa351d07a5e4c5758b1afe6a4c0b (diff) | |
| download | lwn-67c58ce60024b9b3d9cf203da994bf265aa7e369.tar.gz lwn-67c58ce60024b9b3d9cf203da994bf265aa7e369.zip | |
mm, compaction: ignore pageblock skip when manually invoking compaction
commit 91ca9186484809c57303b33778d841cc28f696ed upstream.
The cached pageblock hint should be ignored when triggering compaction
through /proc/sys/vm/compact_memory so all eligible memory is isolated.
Manually invoking compaction is known to be expensive, there's no need
to skip pageblocks based on heuristics (mainly for debugging).
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: 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>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -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 951209b91951..5e38e5706f62 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1193,6 +1193,7 @@ static void compact_node(int nid) struct compact_control cc = { .order = -1, .sync = true, + .ignore_skip_hint = true, }; __compact_pgdat(NODE_DATA(nid), &cc); |