tree 63182c1acead9dbc27dc7c2cea4f00bbbdb4f945
parent 7cca82bd660c3cdcf86f218af9a9e21417061c6e
author Marek Szyprowski <m.szyprowski@samsung.com> 1355270577 -0800
committer Laura Abbott <lauraa@codeaurora.org> 1371576291 -0700

mm: cma: skip watermarks check for already isolated blocks in split_free_page()

Since commit 2139cbe627b8 ("cma: fix counting of isolated pages") free
pages in isolated pageblocks are not accounted to NR_FREE_PAGES counters,
so watermarks check is not required if one operates on a free page in
isolated pageblock.

Change-Id: Id9b38d2e4e504336e11274a30044e3aacbc37d03
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 2e30abd1730751d58463d88bc0844ab8fd7112a9
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[lauraa@codeaurora.org: Context fixups due to being merged
out of order. Bring over an added 'feature' where we don't
obey watermarks for CMA pages]
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>