linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
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

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=83e28e12e0c671777213e4a0d4fcc3b53c93ea1e.1293031046.git.minchan.kim@gmail.com \
    --to=minchan.kim@gmail.com \
    --cc=akpm@linux-foundation.org \
    --cc=fuse-devel@lists.sourceforge.net \
    --cc=kamezawa.hiroyu@jp.fujitsu.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=miklos@szeredi.hu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox