diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2012-12-21 20:23:32 +0000 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2012-12-21 20:23:32 +0000 |
| commit | 018debea8de9b8f17a9637e07c98c61517eb2a6b (patch) | |
| tree | 80fa9a7e9b79e09e31081db699d1ad449cb7f46a /drivers | |
| parent | e3cbf94513c21516fbb44561857b155d1c599625 (diff) | |
| download | lwn-018debea8de9b8f17a9637e07c98c61517eb2a6b.tar.gz lwn-018debea8de9b8f17a9637e07c98c61517eb2a6b.zip | |
dm thin: emit ignore_discard in status when discards disabled
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@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-thin.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index aeb9e20f5978..063fe04e60e9 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2391,7 +2391,9 @@ 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"); @@ -2487,7 +2489,7 @@ static struct target_type pool_target = { .name = "thin-pool", .features = DM_TARGET_SINGLETON | DM_TARGET_ALWAYS_WRITEABLE | DM_TARGET_IMMUTABLE, - .version = {1, 5, 0}, + .version = {1, 6, 0}, .module = THIS_MODULE, .ctr = pool_ctr, .dtr = pool_dtr, |