diff options
| author |   Marek Szyprowski <m.szyprowski@samsung.com> | 2012-12-11 16:02:59 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-11 17:22:27 -0800 |
| commit | bc357f431c836c6631751e3ef7dfe7882394ad67 (patch) | |
| tree | b67904e354a30c9ecc0a53b8288a3a74c37b9bc2 /include/linux/mmzone.h | |
| parent | mm: cma: skip watermarks check for already isolated blocks in split_free_page() (diff) | |
| download | linux-dev-bc357f431c836c6631751e3ef7dfe7882394ad67.tar.xz linux-dev-bc357f431c836c6631751e3ef7dfe7882394ad67.zip | |
mm: cma: remove watermark hacks
Commits 2139cbe627b8 ("cma: fix counting of isolated pages") and
d95ea5d18e69 ("cma: fix watermark checking") introduced a reliable
method of free page accounting when memory is being allocated from CMA
regions, so the workaround introduced earlier by commit 49f223a9cd96
("mm: trigger page reclaim in alloc_contig_range() to stabilise
watermarks") can be finally removed.
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>
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index a23923ba8263..0c0b1d608a69 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -63,10 +63,8 @@ enum { #ifdef CONFIG_CMA # define is_migrate_cma(migratetype) unlikely((migratetype) == MIGRATE_CMA) -# define cma_wmark_pages(zone) zone->min_cma_pages #else # define is_migrate_cma(migratetype) false -# define cma_wmark_pages(zone) 0 #endif #define for_each_migratetype_order(order, type) \ @@ -383,13 +381,6 @@ struct zone { /* see spanned/present_pages for more description */ seqlock_t span_seqlock; #endif -#ifdef CONFIG_CMA - /* - * CMA needs to increase watermark levels during the allocation - * process to make sure that the system is not starved. - */ - unsigned long min_cma_pages; -#endif struct free_area free_area[MAX_ORDER]; #ifndef CONFIG_SPARSEMEM |