From 9b7aaa64f96f7ca280d75326fca42f42017b89ef Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Wed, 4 Dec 2013 16:58:19 -0500 Subject: 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 Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org --- drivers/md/dm-thin-metadata.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/md/dm-thin-metadata.h') 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, -- cgit v1.2.2