Commit b543b5c0 authored Dec 03, 2018 by Mike Snitzer Committed by Greg Kroah-Hartman Dec 19, 2018

dm: call blk_queue_split() to impose device limits on bios



commit 89f5fa47476eda56402e29fff3c5097f5c2a1e19 upstream.

Otherwise the incoming bios, of various types, won't be shaped based on
the DM device's advertised limits.

Depends-on: af67c31f ("blk: remove bio_set arg from blk_queue_split()")
Fixes: 744889b7 ("block: don't deal with discard limit in blkdev_issue_discard()")
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 09bc666f

drivers/md/dm.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1592,6 +1592,8 @@ static blk_qc_t __split_and_process_bio(struct mapped_device *md,
		return ret;
		}

		blk_queue_split(md->queue, &bio);

		init_clone_info(&ci, md, map, bio);

		if (bio->bi_opf & REQ_PREFLUSH) {