From: Minchan Kim Date: Mon, 8 Oct 2012 23:33:48 +0000 (-0700) Subject: CMA: migrate mlocked pages X-Git-Tag: v3.7-rc1~74^2~18 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e46a28790e594c0876d1a84270926abf75460f61;p=pandora-kernel.git CMA: migrate mlocked pages Presently CMA cannot migrate mlocked pages so it ends up failing to allocate contiguous memory space. This patch makes mlocked pages be migrated out. Of course, it can affect realtime processes but in CMA usecase, contiguous memory allocation failing is far worse than access latency to an mlocked page being variable while CMA is running. If someone wants to make the system realtime, he shouldn't enable CMA because stalls can still happen at random times. [akpm@linux-foundation.org: tweak comment text, per Mel] Signed-off-by: Minchan Kim Acked-by: Mel Gorman Cc: Michal Nazarewicz Cc: Bartlomiej Zolnierkiewicz Cc: Marek Szyprowski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed