If "ignore_discard" is specified when creating the thin pool device then
discard support is disabled for that device. The pool device's status
should reflect this fact rather than stating "no_discard_passdown"
(which implies discards are enabled but passdown is disabled).
Reported-by: Zdenek Kabelac <zkabelac@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
---
drivers/md/dm-thin.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 4644f5e..f1d2f5e 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2370,7 +2370,9 @@ static int pool_status(struct dm_target *ti, status_type_t type,
else
DMEMIT("rw ");
- if (pool->pf.discard_enabled && pool->pf.discard_passdown)
+ if (!pool->pf.discard_enabled)
+ DMEMIT("ignore_discard");
+ else if (pool->pf.discard_passdown)
DMEMIT("discard_passdown");
else
DMEMIT("no_discard_passdown");
--
1.7.1
--
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