From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-we0-f172.google.com ([74.125.82.172]:64059 "EHLO mail-we0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753544Ab3KGLOt (ORCPT ); Thu, 7 Nov 2013 06:14:49 -0500 Received: by mail-we0-f172.google.com with SMTP id q58so361302wes.17 for ; Thu, 07 Nov 2013 03:14:48 -0800 (PST) From: Filipe David Borba Manana To: linux-btrfs@vger.kernel.org Cc: Filipe David Borba Manana Subject: [PATCH v2] Btrfs: don't wait for ordered data outside desired range Date: Thu, 7 Nov 2013 11:13:31 +0000 Message-Id: <1383822811-13145-1-git-send-email-fdmanana@gmail.com> In-Reply-To: <1383750760-25246-1-git-send-email-fdmanana@gmail.com> References: <1383750760-25246-1-git-send-email-fdmanana@gmail.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: In btrfs_wait_ordered_range(), if we found an extent to the left of the start of our desired wait range and the last byte of that extent is 1 less than the desired range's start, we would would wait for the IO completion of that extent and all other extents to the left of that extent, unnecessarily. Signed-off-by: Filipe David Borba Manana --- V2: Updated commit message. fs/btrfs/ordered-data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 25a8f38..c37124b 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -803,7 +803,7 @@ int btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len) btrfs_put_ordered_extent(ordered); break; } - if (ordered->file_offset + ordered->len < start) { + if (ordered->file_offset + ordered->len <= start) { btrfs_put_ordered_extent(ordered); break; } -- 1.7.9.5