Commit c2f3d24b authored Dec 10, 2009 by Kiyoshi Ueda Committed by Alasdair G Kergon Dec 10, 2009

dm mpath: reject messages when device is suspended



This patch rejects messages that can generate I/O while the device
itself is suspended.

Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Cc: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

parent 64dbce58

drivers/md/dm-mpath.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -1433,6 +1433,11 @@ static int multipath_message(struct dm_target ti, unsigned argc, char *argv)
		goto out;
		}

		if (dm_suspended(ti)) {
		r = -EBUSY;
		goto out;
		}

		if (argc == 1) {
		if (!strnicmp(argv[0], MESG_STR("queue_if_no_path"))) {
		r = queue_if_no_path(m, 1, 0);