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| 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 /mm/page_isolation.c | |
| parent | 2139cbe627b8910ded55148f87ee10f7485408ed (diff) | |
| download | lwn-d1ce749a0db12202b711d1aba1d29e823034648d.tar.gz lwn-d1ce749a0db12202b711d1aba1d29e823034648d.zip | |
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 'mm/page_isolation.c')
| -rw-r--r-- | mm/page_isolation.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c index 3ca1716471bc..345643b85bd4 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -77,11 +77,12 @@ int set_migratetype_isolate(struct page *page) out: if (!ret) { unsigned long nr_pages; + int migratetype = get_pageblock_migratetype(page); set_pageblock_isolate(page); nr_pages = move_freepages_block(zone, page, MIGRATE_ISOLATE); - __mod_zone_page_state(zone, NR_FREE_PAGES, -nr_pages); + __mod_zone_freepage_state(zone, -nr_pages, migratetype); } spin_unlock_irqrestore(&zone->lock, flags); @@ -100,7 +101,7 @@ void unset_migratetype_isolate(struct page *page, unsigned migratetype) if (get_pageblock_migratetype(page) != MIGRATE_ISOLATE) goto out; nr_pages = move_freepages_block(zone, page, migratetype); - __mod_zone_page_state(zone, NR_FREE_PAGES, nr_pages); + __mod_zone_freepage_state(zone, nr_pages, migratetype); restore_pageblock_isolate(page, migratetype); out: spin_unlock_irqrestore(&zone->lock, flags); |