Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752348AbdGEACm (ORCPT ); Tue, 4 Jul 2017 20:02:42 -0400 Received: from mx2.suse.de ([195.135.220.15]:35035 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752257AbdGEACl (ORCPT ); Tue, 4 Jul 2017 20:02:41 -0400 From: Goldwyn Rodrigues To: linux-btrfs@vger.kernel.org Cc: linux-block@vger.kernel.org, markus@trippelsdorf.de, linux-kernel@vger.kernel.org, axboe@kernel.dk, dsterba@suse.com, Goldwyn Rodrigues Subject: [PATCH] btrfs: Correct assignment of pos Date: Tue, 4 Jul 2017 19:02:09 -0500 Message-Id: <20170705000209.11391-1-rgoldwyn@suse.de> X-Mailer: git-send-email 2.12.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 843 Lines: 27 From: Goldwyn Rodrigues Assigning pos for usage early messes up in append mode, where the pos is re-assigned in generic_write_checks(). Re-assign pos to get the correct position to write from iocb->ki_pos. Fixes: edf064e7c6fe ("btrfs: nowait aio support") Signed-off-by: Goldwyn Rodrigues Tested-by: Markus Trippelsdorf --- fs/btrfs/file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 59e2dccdf75b..7947781229e5 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1931,6 +1931,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb, */ update_time_for_write(inode); + pos = iocb->ki_pos; start_pos = round_down(pos, fs_info->sectorsize); oldsize = i_size_read(inode); if (start_pos > oldsize) { -- 2.12.0