lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <02ab98b3a1450f7a1c31edc48ccc57e887cee900.1292604746.git.minchan.kim@gmail.com>
Date:	Sat, 18 Dec 2010 02:13:40 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-mm <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>,
	Minchan Kim <minchan.kim@...il.com>,
	Nick Piggin <npiggin@...e.de>,
	Al Viro <viro@...iv.linux.org.uk>
Subject: [RFC 5/5] truncate: Remove unnecessary page release

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: Nick Piggin <npiggin@...e.de>
Cc: Al Viro <viro@...iv.linux.org.uk>
Cc: linux-mm@...ck.org
Signed-off-by: Minchan Kim <minchan.kim@...il.com>
---
 mm/truncate.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/mm/truncate.c b/mm/truncate.c
index 9ee5673..8decb93 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -114,7 +114,6 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
 	 * calls cleancache_put_page (and note page->mapping is now NULL)
 	 */
 	cleancache_flush_page(mapping, page);
-	page_cache_release(page);	/* pagecache ref */
 	return 0;
 }
 
-- 
1.7.0.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ