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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>,
	Minchan Kim <minchan.kim@gmail.com>,
	William Irwin <wli@holomorphy.com>
Subject: [RFC 3/5] tlbfs: Remove unnecessary page release
Date: Sat, 18 Dec 2010 02:13:38 +0900	[thread overview]
Message-ID: <08549e97645f7d6c2bcc5c760a24fde56dfed513.1292604745.git.minchan.kim@gmail.com> (raw)
In-Reply-To: <cover.1292604745.git.minchan.kim@gmail.com>
In-Reply-To: <cover.1292604745.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 remove_from_page_cache.
So we don't need call again in caller context.

Cc: William Irwin <wli@holomorphy.com>
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
---
 fs/hugetlbfs/inode.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 9885082..4f32fb6 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -333,7 +333,6 @@ static void truncate_huge_page(struct page *page)
 	cancel_dirty_page(page, /* No IO accounting for huge pages? */0);
 	ClearPageUptodate(page);
 	remove_from_page_cache(page);
-	put_page(page);
 }
 
 static void truncate_hugepages(struct inode *inode, loff_t lstart)
-- 
1.7.0.4

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  parent reply	other threads:[~2010-12-17 17:14 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-17 17:13 [RFC 0/5] Change page reference hanlding semantic of page cache Minchan Kim
2010-12-17 17:13 ` [RFC 1/5] drop page reference on remove_from_page_cache Minchan Kim
2010-12-20  1:53   ` KAMEZAWA Hiroyuki
2010-12-17 17:13 ` [RFC 2/5] fuse: Remove unnecessary page release Minchan Kim
2010-12-20  1:54   ` KAMEZAWA Hiroyuki
2010-12-17 17:13 ` Minchan Kim [this message]
2010-12-20  1:54   ` [RFC 3/5] tlbfs: " KAMEZAWA Hiroyuki
2011-01-06  9:56   ` Mel Gorman
2011-01-10 15:39     ` Minchan Kim
2010-12-17 17:13 ` [RFC 4/5] swap: " Minchan Kim
2010-12-20  1:55   ` KAMEZAWA Hiroyuki
2010-12-17 17:13 ` [RFC 5/5] truncate: " Minchan Kim
2010-12-20  1:55   ` KAMEZAWA Hiroyuki
2010-12-20  2:21   ` KOSAKI Motohiro
2010-12-20  2:27     ` KAMEZAWA Hiroyuki
2010-12-20  2:58       ` Minchan Kim
2010-12-20  4:35         ` KAMEZAWA Hiroyuki
2010-12-20  8:09           ` Minchan Kim
2010-12-20  8:54             ` KAMEZAWA Hiroyuki
2010-12-20  2:27     ` Minchan Kim
2010-12-20  2:32       ` KOSAKI Motohiro
2010-12-20  2:49         ` Minchan Kim
2010-12-20  3:03           ` KOSAKI Motohiro
2010-12-20  3:31             ` Minchan Kim
2010-12-20 10:33 ` [RFC 0/5] Change page reference hanlding semantic of page cache Christoph Hellwig
2010-12-20 23:36   ` Minchan Kim
2010-12-21  5:07     ` Hugh Dickins
2010-12-21  7:32       ` Minchan Kim

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