From: Mikulas Patocka <mpatocka@redhat.com>

Date: Tue, 10 Nov 2020 07:44:01 -0500

Subject: [PATCH] dm writecache: advance the number of arguments when reporting

 max_age

Git-commit: e5d41cbca1b2036362c9e29d705d3a175a01eff8

Patch-mainline: v5.10-rc7

References: git-fixes

When reporting the "max_age" value the number of arguments must

advance by two.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

Fixes: 3923d4854e18 ("dm writecache: implement gradual cleanup")

Cc: stable@vger.kernel.org # v5.7+

Signed-off-by: Mike Snitzer <snitzer@redhat.com>

Acked-by: Hannes Reinecke <hare@suse.com>

---

 drivers/md/dm-writecache.c | 2 ++

 1 file changed, 2 insertions(+)

diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c

index 9ae4ce7df95c..1ea923af47c6 100644

--- a/drivers/md/dm-writecache.c

+++ b/drivers/md/dm-writecache.c

@@ -2479,6 +2479,8 @@ static void writecache_status(struct dm_target *ti, status_type_t type,

 			extra_args += 2;

 		if (wc->autocommit_time_set)

 			extra_args += 2;

+		if (wc->max_age != MAX_AGE_UNSPECIFIED)

+			extra_args += 2;

 		if (wc->cleaner)

 			extra_args++;

 		if (wc->writeback_fua_set)

-- 

2.29.2