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| author | Mel Gorman <mgorman@suse.de> | 2014-06-04 16:10:06 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-29 17:40:51 -0800 |
| commit | e937b98c04ea762d011f7d4a38ef500bba6875a5 (patch) | |
| tree | 78472a8c0f87461767c9c21a7f6fb2a8208431b8 /mm | |
| parent | c9c1e5d1d2b69554b7c922c88a3b5a7e8c2207c4 (diff) | |
| download | lwn-e937b98c04ea762d011f7d4a38ef500bba6875a5.tar.gz lwn-e937b98c04ea762d011f7d4a38ef500bba6875a5.zip | |
mm: page_alloc: do not treat a zone that cannot be used for dirty pages as "full"
commit 800a1e750c7b04c2aa2459afca77e936e01c0029 upstream.
If a zone cannot be used for a dirty page then it gets marked "full" which
is cached in the zlc and later potentially skipped by allocation requests
that have nothing to do with dirty zones.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index c7e27b8c7200..481f6868d80a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1991,7 +1991,7 @@ zonelist_scan: */ if ((alloc_flags & ALLOC_WMARK_LOW) && (gfp_mask & __GFP_WRITE) && !zone_dirty_ok(zone)) - goto this_zone_full; + continue; mark = zone->watermark[alloc_flags & ALLOC_WMARK_MASK]; if (!zone_watermark_ok(zone, order, mark, |