tree 414e6c4237119e5b5495a0b77903c1fa055fe2eb
parent 3115cd9145511c9159a19b118836dd5115d0a781
author David Rientjes <rientjes@google.com> 1396561643 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1396567258 -0700

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>