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> Cc: Benjamin Herrenschmidt , Nick Piggin , Linus Torvalds , Wu Fengguang To: Andrew Morton Return-path: Cc: David Rientjes Cc: Hugh Dickins Cc: Ingo Molnar Cc: Lee Schermerhorn Cc: Mike Waychison Cc: Peter Zijlstra Cc: Rohit Seth Cc: Edwin Cc: "H. Peter Anvin" Cc: Ying Han Cc: LKML Cc: Cc: Content-Disposition: inline; filename=readahead-sane-max.patch Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.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 @@ -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