[PATCH 5.4 26/54] dm writecache: fix the maximum number of arguments

Greg Kroah-Hartman
2020-12-10T17:04:59Z

From: Mikulas Patocka <mpatocka@redhat.com>

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>

---
drivers/md/dm-writecache.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -1889,7 +1889,7 @@ static int writecache_ctr(struct dm_targ
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;