From: Minchan Kim <minchan.kim@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Minchan Kim <minchan.kim@gmail.com>,
Miklos Szeredi <miklos@szeredi.hu>,
fuse-devel@lists.sourceforge.net
Subject: [PATCH 2/7] fuse: Change remove_from_page_cache
Date: Thu, 23 Dec 2010 00:32:44 +0900 [thread overview]
Message-ID: <83e28e12e0c671777213e4a0d4fcc3b53c93ea1e.1293031046.git.minchan.kim@gmail.com> (raw)
In-Reply-To: <cover.1293031046.git.minchan.kim@gmail.com>
In-Reply-To: <cover.1293031046.git.minchan.kim@gmail.com>
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
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.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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next prev parent reply other threads:[~2010-12-22 15:33 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-22 15:32 [PATCH 0/7] Change page reference handling semantic of page cache Minchan Kim
2010-12-22 15:32 ` [PATCH 1/7] Introduce delete_from_page_cache Minchan Kim
2010-12-22 15:32 ` Minchan Kim [this message]
2011-01-08 22:22 ` [PATCH 2/7] fuse: Change remove_from_page_cache Johannes Weiner
2010-12-22 15:32 ` [PATCH 3/7] tlbfs: " Minchan Kim
2011-01-08 22:25 ` Johannes Weiner
2010-12-22 15:32 ` [PATCH 4/7] swap: " Minchan Kim
2011-01-08 22:28 ` Johannes Weiner
2011-01-10 15:45 ` Minchan Kim
2010-12-22 15:32 ` [PATCH 5/7] truncate: " Minchan Kim
2011-01-08 22:33 ` Johannes Weiner
2010-12-22 15:32 ` [PATCH 6/7] Good bye remove_from_page_cache Minchan Kim
2011-01-08 22:35 ` Johannes Weiner
2010-12-22 15:32 ` [PATCH 7/7] Change __remove_from_page_cache Minchan Kim
2011-01-08 22:36 ` Johannes Weiner
2010-12-30 3:17 ` [PATCH 0/7] Change page reference handling semantic of page cache Hugh Dickins
2011-01-06 10:31 ` Mel Gorman
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