summaryrefslogtreecommitdiff
path: root/mm
diff options
context:
space:
mode:
authorDavid Rientjes <rientjes@google.com>2014-08-28 19:34:42 +0100
committerJiri Slaby <jslaby@suse.cz>2014-09-26 11:51:56 +0200
commitc4199ba1a1d8802a69ed9f65026bc8781a72c708 (patch)
tree2c4fdb50edee2411bf275644fe0543c13f7f21ca /mm
parentd36e7004412992303202433b25bdbb1e7c929f57 (diff)
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: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'mm')
-rw-r--r--mm/compaction.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 45308186a2fa..5c17302275b7 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1191,6 +1191,7 @@ static void compact_node(int nid)
struct compact_control cc = {
.order = -1,
.sync = true,
+ .ignore_skip_hint = true,
};
__compact_pgdat(NODE_DATA(nid), &cc);