From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:38766 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726451AbeLRQlT (ORCPT ); Tue, 18 Dec 2018 11:41:19 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mike Snitzer Subject: [PATCH 4.19 26/44] dm: call blk_queue_split() to impose device limits on bios Date: Tue, 18 Dec 2018 17:39:38 +0100 Message-Id: <20181218163930.574401907@linuxfoundation.org> In-Reply-To: <20181218163927.119623235@linuxfoundation.org> References: <20181218163927.119623235@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mike Snitzer commit 89f5fa47476eda56402e29fff3c5097f5c2a1e19 upstream. Otherwise the incoming bios, of various types, won't be shaped based on the DM device's advertised limits. Depends-on: af67c31fba ("blk: remove bio_set arg from blk_queue_split()") Fixes: 744889b7cb ("block: don't deal with discard limit in blkdev_issue_discard()") Cc: stable@vger.kernel.org Signed-off-by: Mike Snitzer Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1592,6 +1592,8 @@ static blk_qc_t __split_and_process_bio( return ret; } + blk_queue_split(md->queue, &bio); + init_clone_info(&ci, md, map, bio); if (bio->bi_opf & REQ_PREFLUSH) {