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| author | David Rientjes <rientjes@google.com> | 2014-04-03 21:47:23 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-03 23:20:58 (GMT) |
| commit | 91ca9186484809c57303b33778d841cc28f696ed (patch) | |
| tree | 414e6c4237119e5b5495a0b77903c1fa055fe2eb | |
| parent | 3115cd9145511c9159a19b118836dd5115d0a781 (diff) | |
| download | linux-91ca9186484809c57303b33778d841cc28f696ed.tar.xz | |
mm, compaction: ignore pageblock skip when manually invoking compaction
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>
| -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 9185775..37b3799 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1186,6 +1186,7 @@ static void compact_node(int nid) struct compact_control cc = { .order = -1, .sync = true, + .ignore_skip_hint = true, }; __compact_pgdat(NODE_DATA(nid), &cc); |