From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wu Fengguang Subject: [PATCH 09/14] readahead: increase interleaved readahead size Date: Tue, 07 Apr 2009 15:17:38 +0800 Message-ID: <20090407072133.757876312@intel.com> References: <20090407071729.233579162@intel.com> Cc: Ying Han , LKML , , , Wu Fengguang To: Andrew Morton Return-path: Content-Disposition: inline; filename=readahead-interleaved-size.patch Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.vger.kernel.org Make sure interleaved readahead size is larger than request size. This also makes readahead window grow up more quickly. Reported-by: Xu Chenfeng Signed-off-by: Wu Fengguang --- mm/readahead.c | 1 + 1 file changed, 1 insertion(+) --- mm.orig/mm/readahead.c +++ mm/mm/readahead.c @@ -428,6 +428,7 @@ ondemand_readahead(struct address_space ra->start = start; ra->size = start - offset; /* old async_size */ + ra->size += req_size; ra->size = get_next_ra_size(ra, max); ra->async_size = ra->size; goto readit; -- -- 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