diff options
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 5b0c79d22c09..8733081d97a3 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -653,6 +653,9 @@ struct btrfs_block_group_cache { /* for block groups in the same raid type */ struct list_head list; + + /* usage count */ + atomic_t count; }; struct btrfs_leaf_ref_tree { @@ -1706,10 +1709,8 @@ int btrfs_copy_pinned(struct btrfs_root *root, struct extent_io_tree *copy); struct btrfs_block_group_cache *btrfs_lookup_block_group(struct btrfs_fs_info *info, u64 bytenr); -struct btrfs_block_group_cache *btrfs_find_block_group(struct btrfs_root *root, - struct btrfs_block_group_cache - *hint, u64 search_start, - int data, int owner); +u64 btrfs_find_block_group(struct btrfs_root *root, + u64 search_start, u64 search_hint, int owner); struct extent_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, u32 blocksize, u64 parent, @@ -1770,6 +1771,7 @@ int btrfs_update_extent_ref(struct btrfs_trans_handle *trans, u64 owner_objectid); int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans, struct btrfs_root *root); +int btrfs_extent_readonly(struct btrfs_root *root, u64 bytenr); int btrfs_free_block_groups(struct btrfs_fs_info *info); int btrfs_read_block_groups(struct btrfs_root *root); int btrfs_make_block_group(struct btrfs_trans_handle *trans, @@ -2019,10 +2021,9 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root); int btrfs_set_extent_delalloc(struct inode *inode, u64 start, u64 end); int btrfs_writepages(struct address_space *mapping, struct writeback_control *wbc); -int btrfs_create_subvol_root(struct btrfs_root *new_root, struct dentry *dentry, - struct btrfs_trans_handle *trans, u64 new_dirid, - struct btrfs_block_group_cache *block_group); - +int btrfs_create_subvol_root(struct btrfs_trans_handle *trans, + struct btrfs_root *new_root, struct dentry *dentry, + u64 new_dirid, u64 alloc_hint); int btrfs_merge_bio_hook(struct page *page, unsigned long offset, size_t size, struct bio *bio, unsigned long bio_flags); |