diff options
Diffstat (limited to 'drivers/md/dm-thin-metadata.c')
| -rw-r--r-- | drivers/md/dm-thin-metadata.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 43824d73366d..a15091a0d40c 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -1677,6 +1677,36 @@ int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *resu return r; } +int dm_pool_inc_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e) +{ + int r = 0; + + down_write(&pmd->root_lock); + for (; b != e; b++) { + r = dm_sm_inc_block(pmd->data_sm, b); + if (r) + break; + } + up_write(&pmd->root_lock); + + return r; +} + +int dm_pool_dec_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e) +{ + int r = 0; + + down_write(&pmd->root_lock); + for (; b != e; b++) { + r = dm_sm_dec_block(pmd->data_sm, b); + if (r) + break; + } + up_write(&pmd->root_lock); + + return r; +} + bool dm_thin_changed_this_transaction(struct dm_thin_device *td) { int r; |