diff options
| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2012-10-08 16:32:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-09 16:22:44 +0900 |
| commit | d1ce749a0db12202b711d1aba1d29e823034648d (patch) | |
| tree | b9b1f0e1d4fcda9ab900575f42f5ddc155d28648 /include | |
| parent | 2139cbe627b8910ded55148f87ee10f7485408ed (diff) | |
cma: count free CMA pages
Add NR_FREE_CMA_PAGES counter to be later used for checking watermark in
__zone_watermark_ok(). For simplicity and to avoid #ifdef hell make this
counter always available (not only when CONFIG_CMA=y).
[akpm@linux-foundation.org: use conventional migratetype naming]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmzone.h | 1 | ||||
| -rw-r--r-- | include/linux/vmstat.h | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 2daa54f55db..85ac67aa577 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -142,6 +142,7 @@ enum zone_stat_item { NUMA_OTHER, /* allocation from other node */ #endif NR_ANON_TRANSPARENT_HUGEPAGES, + NR_FREE_CMA_PAGES, NR_VM_ZONE_STAT_ITEMS }; /* diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index ad2cfd53dad..a5bb15018b5 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -253,6 +253,14 @@ static inline void refresh_zone_stat_thresholds(void) { } #endif /* CONFIG_SMP */ +static inline void __mod_zone_freepage_state(struct zone *zone, int nr_pages, + int migratetype) +{ + __mod_zone_page_state(zone, NR_FREE_PAGES, nr_pages); + if (is_migrate_cma(migratetype)) + __mod_zone_page_state(zone, NR_FREE_CMA_PAGES, nr_pages); +} + extern const char * const vmstat_text[]; #endif /* _LINUX_VMSTAT_H */ |