dm writecache: fix the maximum number of arguments

commit 67aa3ec3dbc43d6e34401d9b2a40040ff7bb57af upstream.

Advance the maximum number of arguments to 16.
This fixes issue where certain operations, combined with table
configured args, exceed 10 arguments.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: 48debafe4f2f ("dm: add writecache target")
Cc: stable@vger.kernel.org # v4.18+
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index 776aaf5951e4afc9f7d0d721ef1b109c7525bae7..b97c56109c746a6ef5e539607db3d31bfc318117 100644 (file)
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -1883,7 +1883,7 @@ static int writecache_ctr(struct dm_target *ti, unsigned argc, char **argv)
        struct wc_memory_superblock s;
 
        static struct dm_arg _args[] = {
-               {0, 10, "Invalid number of feature args"},
+               {0, 16, "Invalid number of feature args"},
        };
 
        as.argc = argc;