From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937819AbZDJGUn (ORCPT ); Fri, 10 Apr 2009 02:20:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S935739AbZDJGQw (ORCPT ); Fri, 10 Apr 2009 02:16:52 -0400 Received: from mga14.intel.com ([143.182.124.37]:28520 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935777AbZDJGQs (ORCPT ); Fri, 10 Apr 2009 02:16:48 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.40,165,1239001200"; d="scan'208";a="130013484" Message-Id: <20090410061253.941738959@intel.com> References: <20090410060957.442203404@intel.com> User-Agent: quilt/0.46-1 Date: Fri, 10 Apr 2009 14:09:59 +0800 From: Wu Fengguang To: Andrew Morton Cc: LKML , Nick Piggin , Linus Torvalds , Wu Fengguang Cc: Ying Han Subject: [PATCH 2/9] readahead: apply max_sane_readahead() limit in ondemand_readahead() Content-Disposition: inline; filename=readahead-sane-max.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Just in case someone aggressively set a huge readahead size. Cc: Nick Piggin Cc: Linus Torvalds Signed-off-by: Wu Fengguang --- mm/readahead.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- mm.orig/mm/readahead.c +++ mm/mm/readahead.c @@ -357,7 +357,7 @@ ondemand_readahead(struct address_space bool hit_readahead_marker, pgoff_t offset, unsigned long req_size) { - int max = ra->ra_pages; /* max readahead pages */ + unsigned long max = max_sane_readahead(ra->ra_pages); pgoff_t prev_offset; int sequential; --