linux-kernel - [PATCH] mm: double mark_page_accessed() in read_cache_page

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-next>] [day] [month] [year] [list]

Message-Id: <1183737834.7054.108.camel@twins>
Date:	Fri, 06 Jul 2007 18:03:54 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Nick Piggin <npiggin@...e.de>, riel <riel@...hat.com>
Subject: [PATCH] mm: double mark_page_accessed() in read_cache_page_async()

read_cache_page_async() seems to have two invocations of
mark_page_accessed() which will launch pages right onto the active list.

Remove the first one, keeping the latter one. This avoids marking
unwanted pages active (in the retry loop).

Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
---
 mm/filemap.c |    1 -
 1 file changed, 1 deletion(-)

Index: linux-2.6/mm/filemap.c
===================================================================
--- linux-2.6.orig/mm/filemap.c
+++ linux-2.6/mm/filemap.c
@@ -1588,7 +1588,6 @@ retry:
 	page = __read_cache_page(mapping, index, filler, data);
 	if (IS_ERR(page))
 		return page;
-	mark_page_accessed(page);
 	if (PageUptodate(page))
 		goto out;
 


-
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/