diff options
| author | Liam Mark <lmark@codeaurora.org> | 2014-06-23 14:13:47 -0700 |
|---|---|---|
| committer | Jeevan Shriram <jshriram@codeaurora.org> | 2016-04-13 11:11:40 -0700 |
| commit | 50050f2a1d798b65e049e8e2a910c593d29083fb (patch) | |
| tree | 32af0a27e24f0017e0ba58e8d472f917345668b3 /include/linux | |
| parent | d491cf59f01c82ba8c91ff80d984a1bee9186b0d (diff) | |
mm: add cma pcp list
Add a cma pcp list in order to increase cma memory utilization.
Increased cma memory utilization will improve overall memory
utilization because free cma pages are ignored when memory reclaim
is done with gfp mask GFP_KERNEL.
Since most memory reclaim is done by kswapd, which uses a gfp mask
of GFP_KERNEL, by increasing cma memory utilization we are therefore
ensuring that less aggressive memory reclaim takes place.
Increased cma memory utilization will improve performance,
for example it will increase app concurrency.
Change-Id: I809589a25c6abca51f1c963f118adfc78e955cf9
Signed-off-by: Liam Mark <lmark@codeaurora.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mmzone.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index dfb8a6159997..ad4c3f186f61 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -39,8 +39,6 @@ enum { MIGRATE_UNMOVABLE, MIGRATE_MOVABLE, MIGRATE_RECLAIMABLE, - MIGRATE_PCPTYPES, /* the number of types on the pcp lists */ - MIGRATE_HIGHATOMIC = MIGRATE_PCPTYPES, #ifdef CONFIG_CMA /* * MIGRATE_CMA migration type is designed to mimic the way @@ -57,6 +55,8 @@ enum { */ MIGRATE_CMA, #endif + MIGRATE_PCPTYPES, /* the number of types on the pcp lists */ + MIGRATE_HIGHATOMIC = MIGRATE_PCPTYPES, #ifdef CONFIG_MEMORY_ISOLATION MIGRATE_ISOLATE, /* can't allocate from here */ #endif @@ -74,9 +74,11 @@ extern int *get_migratetype_fallbacks(int mtype); #ifdef CONFIG_CMA bool is_cma_pageblock(struct page *page); # define is_migrate_cma(migratetype) unlikely((migratetype) == MIGRATE_CMA) +# define get_cma_migrate_type() MIGRATE_CMA #else # define is_cma_pageblock(page) false # define is_migrate_cma(migratetype) false +# define get_cma_migrate_type() MIGRATE_MOVABLE #endif #define for_each_migratetype_order(order, type) \ |