diff options
Diffstat (limited to 'drivers/md/persistent-data/dm-block-manager.h')
| -rw-r--r-- | drivers/md/persistent-data/dm-block-manager.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/md/persistent-data/dm-block-manager.h b/drivers/md/persistent-data/dm-block-manager.h index 5746b0f82a03..b1998968594c 100644 --- a/drivers/md/persistent-data/dm-block-manager.h +++ b/drivers/md/persistent-data/dm-block-manager.h @@ -36,6 +36,7 @@ struct dm_block_manager *dm_block_manager_create( struct block_device *bdev, unsigned int block_size, unsigned int max_held_per_thread); void dm_block_manager_destroy(struct dm_block_manager *bm); +void dm_block_manager_reset(struct dm_block_manager *bm); unsigned int dm_bm_block_size(struct dm_block_manager *bm); dm_block_t dm_bm_nr_blocks(struct dm_block_manager *bm); @@ -50,12 +51,14 @@ dm_block_t dm_bm_nr_blocks(struct dm_block_manager *bm); */ struct dm_block_validator { const char *name; - void (*prepare_for_write)(struct dm_block_validator *v, struct dm_block *b, size_t block_size); + void (*prepare_for_write)(const struct dm_block_validator *v, + struct dm_block *b, size_t block_size); /* * Return 0 if the checksum is valid or < 0 on error. */ - int (*check)(struct dm_block_validator *v, struct dm_block *b, size_t block_size); + int (*check)(const struct dm_block_validator *v, + struct dm_block *b, size_t block_size); }; /*----------------------------------------------------------------*/ @@ -72,11 +75,11 @@ struct dm_block_validator { * written back to the disk sometime after dm_bm_unlock is called. */ int dm_bm_read_lock(struct dm_block_manager *bm, dm_block_t b, - struct dm_block_validator *v, + const struct dm_block_validator *v, struct dm_block **result); int dm_bm_write_lock(struct dm_block_manager *bm, dm_block_t b, - struct dm_block_validator *v, + const struct dm_block_validator *v, struct dm_block **result); /* @@ -84,7 +87,7 @@ int dm_bm_write_lock(struct dm_block_manager *bm, dm_block_t b, * available immediately. */ int dm_bm_read_try_lock(struct dm_block_manager *bm, dm_block_t b, - struct dm_block_validator *v, + const struct dm_block_validator *v, struct dm_block **result); /* @@ -92,7 +95,7 @@ int dm_bm_read_try_lock(struct dm_block_manager *bm, dm_block_t b, * overwrite the block completely. It saves a disk read. */ int dm_bm_write_lock_zero(struct dm_block_manager *bm, dm_block_t b, - struct dm_block_validator *v, + const struct dm_block_validator *v, struct dm_block **result); void dm_bm_unlock(struct dm_block *b); |