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authorDavid Rientjes <rientjes@google.com>2014-04-03 14:47:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 16:20:58 -0700
commit91ca9186484809c57303b33778d841cc28f696ed (patch)
tree414e6c4237119e5b5495a0b77903c1fa055fe2eb /mm/compaction.c
parent3115cd9145511c9159a19b118836dd5115d0a781 (diff)
downloadop-kernel-dev-91ca9186484809c57303b33778d841cc28f696ed.zip
op-kernel-dev-91ca9186484809c57303b33778d841cc28f696ed.tar.gz
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>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c1
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);
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