diff options
| author |   Mike Snitzer <snitzer@redhat.com> | 2016-02-06 18:38:46 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2016-02-22 11:06:21 -0500 |
| commit | f083b09b7819c785db4f82a81f68da3bccfb04bf (patch) | |
| tree | 894fade789e2499a0bd16cb82c2b9ff21982b043 /drivers/md/dm-ioctl.c | |
| parent | dm: cleanup dm_any_congested() (diff) | |
| download | linux-dev-f083b09b7819c785db4f82a81f68da3bccfb04bf.tar.xz linux-dev-f083b09b7819c785db4f82a81f68da3bccfb04bf.zip | |
dm: set DM_TARGET_WILDCARD feature on "error" target
The DM_TARGET_WILDCARD feature indicates that the "error" target may
replace any target; even immutable targets. This feature will be useful
to preserve the ability to replace the "multipath" target even once it
is formally converted over to having the DM_TARGET_IMMUTABLE feature.
Also, implicit in the DM_TARGET_WILDCARD feature flag being set is that
.map, .map_rq, .clone_and_map_rq and .release_clone_rq are all defined
in the target_type.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-ioctl.c')
| -rw-r--r-- | drivers/md/dm-ioctl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 80a439543259..4763c4ae30e4 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1291,7 +1291,8 @@ static int table_load(struct dm_ioctl *param, size_t param_size) immutable_target_type = dm_get_immutable_target_type(md); if (immutable_target_type && - (immutable_target_type != dm_table_get_immutable_target_type(t))) { + (immutable_target_type != dm_table_get_immutable_target_type(t)) && + !dm_table_get_wildcard_target(t)) { DMWARN("can't replace immutable target type %s", immutable_target_type->name); r = -EINVAL; |