From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wu Fengguang Subject: [PATCH 07/14] readahead: apply max_sane_readahead() limit in ondemand_readahead() Date: Tue, 07 Apr 2009 19:50:46 +0800 Message-ID: <20090407115234.544982496@intel.com> References: <20090407115039.780820496@intel.com> Return-path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with SMTP id 466675F0004 for ; Tue, 7 Apr 2009 08:00:54 -0400 (EDT) Content-Disposition: inline; filename=readahead-sane-max.patch Sender: owner-linux-mm@kvack.org To: Andrew Morton Cc: Benjamin Herrenschmidt , Nick Piggin , Linus Torvalds , Wu Fengguang , David Rientjes , Hugh Dickins , Ingo Molnar , Lee Schermerhorn , Mike Waychison , Peter Zijlstra , Rohit Seth , Edwin , "H. Peter Anvin" , Ying Han , LKML , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org List-Id: linux-mm.kvack.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 @@ -382,7 +382,7 @@ 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; -- -- 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/ . Don't email: email@kvack.org