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Commit 7f518ad0 authored by Joe Thornber's avatar Joe Thornber Committed by Mike Snitzer
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dm thin metadata: delete btrees when releasing metadata snapshot 



The device details and mapping trees were just being decremented
before.  Now btree_del() is called to do a deep delete.

Signed-off-by: default avatarJoe Thornber <ejt@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
parent f7644cbf

drivers/md/dm-thin-metadata.c

+2 −2
Original line number Diff line number Diff line
@@ -1293,8 +1293,8 @@ static int __release_metadata_snap(struct dm_pool_metadata *pmd) 
		return r;



	disk_super = dm_block_data(copy);

	dm_sm_dec_block(pmd->metadata_sm, le64_to_cpu(disk_super->data_mapping_root));

	dm_sm_dec_block(pmd->metadata_sm, le64_to_cpu(disk_super->device_details_root));

	dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root));

	dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root));

	dm_sm_dec_block(pmd->metadata_sm, held_root);



	return dm_tm_unlock(pmd->tm, copy);