From d1ce749a0db12202b711d1aba1d29e823034648d Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 8 Oct 2012 16:32:02 -0700 Subject: 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 Signed-off-by: Kyungmin Park Cc: Marek Szyprowski Cc: Michal Nazarewicz Cc: Minchan Kim Cc: Mel Gorman Cc: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/vmstat.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux/vmstat.h') diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index ad2cfd53dadc..a5bb15018b5c 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 */ -- cgit v1.2.3-58-ga151