diff options
Diffstat (limited to 'fs/btrfs/block-group.c')
| -rw-r--r-- | fs/btrfs/block-group.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index 82324c327a50..5ea515fc8c16 100644 --- a/fs/btrfs/block-group.c +++ b/fs/btrfs/block-group.c @@ -504,10 +504,17 @@ static void fragment_free_space(struct btrfs_block_group *block_group) #endif /* - * This is only called by btrfs_cache_block_group, since we could have freed - * extents we need to check the pinned_extents for any extents that can't be - * used yet since their free space will be released as soon as the transaction - * commits. + * Add a free space range to the in memory free space cache of a block group. + * This checks if the range contains super block locations and any such + * locations are not added to the free space cache. + * + * @block_group: The target block group. + * @start: Start offset of the range. + * @end: End offset of the range (exclusive). + * @total_added_ret: Optional pointer to return the total amount of space + * added to the block group's free space cache. + * + * Returns 0 on success or < 0 on error. */ int add_new_free_space(struct btrfs_block_group *block_group, u64 start, u64 end, u64 *total_added_ret) |