Messages in this thread Patch in this message | | | From | Johannes Weiner <> | Subject | [patch 4/5] mm: filemap: pass __GFP_WRITE from grab_cache_page_write_begin() | Date | Wed, 23 Nov 2011 14:34:17 +0100 |
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From: Johannes Weiner <jweiner@redhat.com>
Tell the page allocator that pages allocated through grab_cache_page_write_begin() are expected to become dirty soon.
Signed-off-by: Johannes Weiner <jweiner@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Acked-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> --- mm/filemap.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/mm/filemap.c b/mm/filemap.c index c0018f2..5344dec 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2354,8 +2354,11 @@ struct page *grab_cache_page_write_begin(struct address_space *mapping, pgoff_t index, unsigned flags) { int status; + gfp_t gfp_mask; struct page *page; gfp_t gfp_notmask = 0; + + gfp_mask = mapping_gfp_mask(mapping) | __GFP_WRITE; if (flags & AOP_FLAG_NOFS) gfp_notmask = __GFP_FS; repeat: @@ -2363,7 +2366,7 @@ repeat: if (page) goto found; - page = __page_cache_alloc(mapping_gfp_mask(mapping) & ~gfp_notmask); + page = __page_cache_alloc(gfp_mask & ~gfp_notmask); if (!page) return NULL; status = add_to_page_cache_lru(page, mapping, index, -- 1.7.6.4
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