diff options
Diffstat (limited to 'fs/btrfs/disk-io.h')
| -rw-r--r-- | fs/btrfs/disk-io.h | 34 |
1 files changed, 12 insertions, 22 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index 8c2d6cf1ce59..cd629113f61c 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -39,6 +39,8 @@ static inline u64 btrfs_sb_offset(int mirror) struct btrfs_device; struct btrfs_fs_devices; +void btrfs_check_leaked_roots(struct btrfs_fs_info *fs_info); +void btrfs_init_fs_info(struct btrfs_fs_info *fs_info); int btrfs_verify_level_key(struct extent_buffer *eb, int level, struct btrfs_key *first_key, u64 parent_transid); struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr, @@ -54,15 +56,12 @@ int __cold open_ctree(struct super_block *sb, char *options); void __cold close_ctree(struct btrfs_fs_info *fs_info); int write_all_supers(struct btrfs_fs_info *fs_info, int max_mirrors); -struct buffer_head *btrfs_read_dev_super(struct block_device *bdev); -int btrfs_read_dev_one_super(struct block_device *bdev, int copy_num, - struct buffer_head **bh_ret); +struct btrfs_super_block *btrfs_read_dev_super(struct block_device *bdev); +struct btrfs_super_block *btrfs_read_dev_one_super(struct block_device *bdev, + int copy_num); int btrfs_commit_super(struct btrfs_fs_info *fs_info); -struct btrfs_root *btrfs_read_fs_root(struct btrfs_root *tree_root, - struct btrfs_key *location); -int btrfs_init_fs_root(struct btrfs_root *root); -struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info, - u64 root_id); +struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root, + struct btrfs_key *key); int btrfs_insert_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root); void btrfs_free_fs_roots(struct btrfs_fs_info *fs_info); @@ -70,19 +69,13 @@ void btrfs_free_fs_roots(struct btrfs_fs_info *fs_info); struct btrfs_root *btrfs_get_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_key *key, bool check_ref); -static inline struct btrfs_root * -btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info, - struct btrfs_key *location) -{ - return btrfs_get_fs_root(fs_info, location, true); -} +void btrfs_free_fs_info(struct btrfs_fs_info *fs_info); int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info); void btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info); void btrfs_btree_balance_dirty_nodelay(struct btrfs_fs_info *fs_info); void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root); -void btrfs_free_fs_root(struct btrfs_root *root); #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info); @@ -95,19 +88,16 @@ struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info); * If you want to ensure the whole tree is safe, you should use * fs_info->subvol_srcu */ -static inline struct btrfs_root *btrfs_grab_fs_root(struct btrfs_root *root) +static inline struct btrfs_root *btrfs_grab_root(struct btrfs_root *root) { + if (!root) + return NULL; if (refcount_inc_not_zero(&root->refs)) return root; return NULL; } -static inline void btrfs_put_fs_root(struct btrfs_root *root) -{ - if (refcount_dec_and_test(&root->refs)) - kfree(root); -} - +void btrfs_put_root(struct btrfs_root *root); void btrfs_mark_buffer_dirty(struct extent_buffer *buf); int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, int atomic); |