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Subject[PATCH v3 2/7] fuse: Change remove_from_page_cache
Date
This patch series changes remove_from_page_cache's page ref counting
rule. Page cache ref count is decreased in delete_from_page_cache.
So we don't need decreasing page reference by caller.

Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: fuse-devel@lists.sourceforge.net
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
---
fs/fuse/dev.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index cf8d28d..1ef24fb 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -737,8 +737,7 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
if (WARN_ON(PageMlocked(oldpage)))
goto out_fallback_unlock;

- remove_from_page_cache(oldpage);
- page_cache_release(oldpage);
+ delete_from_page_cache(oldpage);

err = add_to_page_cache_locked(newpage, mapping, index, GFP_KERNEL);
if (err) {
--
1.7.0.4


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