diff options
| author | Joe Thornber <ejt@redhat.com> | 2013-12-04 16:58:19 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2013-12-10 16:35:13 -0500 |
| commit | 9b7aaa64f96f7ca280d75326fca42f42017b89ef (patch) | |
| tree | a0028aeb56bc229e9bc7b1dfcecbb3f03d213131 /drivers/md/dm-thin-metadata.h | |
| parent | 5383ef3a929a1366e2ced45cd6d74be7aa2a2281 (diff) | |
dm thin: allow pool in read-only mode to transition to read-write mode
A thin-pool may be in read-only mode because the pool's data or metadata
space was exhausted. To allow for recovery, by adding more space to the
pool, we must allow a pool to transition from PM_READ_ONLY to PM_WRITE
mode. Otherwise, running out of space will render the pool permanently
read-only.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/md/dm-thin-metadata.h')
| -rw-r--r-- | drivers/md/dm-thin-metadata.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h index 845ebbe589a9..7bcc0e1d6238 100644 --- a/drivers/md/dm-thin-metadata.h +++ b/drivers/md/dm-thin-metadata.h @@ -193,6 +193,7 @@ int dm_pool_resize_metadata_dev(struct dm_pool_metadata *pmd, dm_block_t new_siz * that nothing is changing. */ void dm_pool_metadata_read_only(struct dm_pool_metadata *pmd); +void dm_pool_metadata_read_write(struct dm_pool_metadata *pmd); int dm_pool_register_metadata_threshold(struct dm_pool_metadata *pmd, dm_block_t threshold, |