diff options
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index fe4b2176a6e8..e71def319655 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -3763,6 +3763,34 @@ int btrfs_trim_block_group_bitmaps(struct btrfs_block_group *block_group, return ret; } +bool btrfs_free_space_cache_v1_active(struct btrfs_fs_info *fs_info) +{ + return btrfs_super_cache_generation(fs_info->super_copy); +} + +int btrfs_set_free_space_cache_v1_active(struct btrfs_fs_info *fs_info, bool active) +{ + struct btrfs_trans_handle *trans; + int ret; + + /* + * update_super_roots will appropriately set + * super_copy->cache_generation based on the SPACE_CACHE option, so all + * we have to do is trigger a transaction commit. + */ + trans = btrfs_start_transaction(fs_info->tree_root, 0); + if (IS_ERR(trans)) + return PTR_ERR(trans); + + if (!active) + set_bit(BTRFS_FS_CLEANUP_SPACE_CACHE_V1, &fs_info->flags); + + ret = btrfs_commit_transaction(trans); + clear_bit(BTRFS_FS_CLEANUP_SPACE_CACHE_V1, &fs_info->flags); + + return ret; +} + #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS /* * Use this if you need to make a bitmap or extent entry specifically, it |