diff options
| -rw-r--r-- | drivers/md/dm-thin-metadata.c | 56 |
1 files changed, 32 insertions, 24 deletions
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 0ef10f70565e..dab2109ec40a 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -357,7 +357,7 @@ static int superblock_lock(struct dm_pool_metadata *pmd, &sb_validator, sblock); } -static int superblock_all_zeroes(struct dm_block_manager *bm, int *result) +static int __superblock_all_zeroes(struct dm_block_manager *bm, int *result) { int r; unsigned i; @@ -422,9 +422,9 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd) pmd->details_info.value_type.equal = NULL; } -static int __create_persistent_data_objects(struct dm_pool_metadata *pmd, - struct dm_block_manager *bm, - dm_block_t nr_blocks, int create) +static int __open_or_format_metadata(struct dm_pool_metadata *pmd, + struct dm_block_manager *bm, + dm_block_t nr_blocks, int create) { int r; struct dm_space_map *sm, *data_sm; @@ -509,6 +509,32 @@ bad: return r; } +static int __create_persistent_data_objects(struct dm_pool_metadata *pmd, + dm_block_t nr_blocks, int *create) +{ + int r; + + pmd->bm = dm_block_manager_create(pmd->bdev, THIN_METADATA_BLOCK_SIZE, + THIN_METADATA_CACHE_SIZE, + THIN_MAX_CONCURRENT_LOCKS); + if (IS_ERR(pmd->bm)) { + DMERR("could not create block manager"); + return PTR_ERR(pmd->bm); + } + + r = __superblock_all_zeroes(pmd->bm, create); + if (r) { + dm_block_manager_destroy(pmd->bm); + return r; + } + + r = __open_or_format_metadata(pmd, pmd->bm, nr_blocks, *create); + if (r) + dm_block_manager_destroy(pmd->bm); + + return r; +} + static int __begin_transaction(struct dm_pool_metadata *pmd) { int r; @@ -666,7 +692,6 @@ struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev, struct thin_disk_superblock *disk_super; struct dm_pool_metadata *pmd; sector_t bdev_size = i_size_read(bdev->bd_inode) >> SECTOR_SHIFT; - struct dm_block_manager *bm; int create; struct dm_block *sblock; @@ -676,30 +701,13 @@ struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev, return ERR_PTR(-ENOMEM); } - bm = dm_block_manager_create(bdev, THIN_METADATA_BLOCK_SIZE, - THIN_METADATA_CACHE_SIZE, - THIN_MAX_CONCURRENT_LOCKS); - if (IS_ERR(bm)) { - r = PTR_ERR(bm); - DMERR("could not create block manager"); - kfree(pmd); - return ERR_PTR(r); - } - - r = superblock_all_zeroes(bm, &create); - if (r) { - dm_block_manager_destroy(bm); - kfree(pmd); - return ERR_PTR(r); - } + pmd->bdev = bdev; - r = __create_persistent_data_objects(pmd, bm, 0, create); + r = __create_persistent_data_objects(pmd, 0, &create); if (r) { - dm_block_manager_destroy(bm); kfree(pmd); return ERR_PTR(r); } - pmd->bdev = bdev; if (!create) { r = __begin_transaction(pmd); |