diff options
| author | Joe Thornber <ejt@redhat.com> | 2013-12-04 16:30:01 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 07:49:05 -0800 |
| commit | 6aa06206adee5208abb1f2313fa0017e099ec9a4 (patch) | |
| tree | a85c1357dd44b8dfac28a435acfacbca102cebae /drivers | |
| parent | a016a0dfee64bcf6f08cb0129574b91a280b092e (diff) | |
dm thin: re-establish read-only state when switching to fail mode
commit 5383ef3a929a1366e2ced45cd6d74be7aa2a2281 upstream.
If the thin-pool transitioned to fail mode and the thin-pool's table
were reloaded for some reason: the new table's default pool mode would
be read-write, though it will transition to fail mode during resume.
When the pool mode transitions directly from PM_WRITE to PM_FAIL we need
to re-establish the intermediate read-only state in both the metadata
and persistent-data block manager (as is usually done with the normal
pool mode transition sequence: PM_WRITE -> PM_READ_ONLY -> PM_FAIL).
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-thin.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index af79bae5ab74..0d7852e2b275 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -1400,6 +1400,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode mode) case PM_FAIL: DMERR("%s: switching pool to failure mode", dm_device_name(pool->pool_md)); + dm_pool_metadata_read_only(pool->pmd); pool->process_bio = process_bio_fail; pool->process_discard = process_bio_fail; pool->process_prepared_mapping = process_prepared_mapping_fail; |