diff options
Diffstat (limited to 'fs/btrfs/disk-io.h')
| -rw-r--r-- | fs/btrfs/disk-io.h | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index eb3473d1c1ac..587842991b24 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -6,6 +6,22 @@ #ifndef BTRFS_DISK_IO_H #define BTRFS_DISK_IO_H +#include <linux/sizes.h> +#include <linux/compiler_types.h> +#include "ctree.h" +#include "fs.h" + +struct block_device; +struct super_block; +struct extent_buffer; +struct btrfs_device; +struct btrfs_fs_devices; +struct btrfs_fs_info; +struct btrfs_super_block; +struct btrfs_trans_handle; +struct btrfs_tree_parent_check; +struct btrfs_transaction; + #define BTRFS_SUPER_MIRROR_MAX 3 #define BTRFS_SUPER_MIRROR_SHIFT 12 @@ -25,11 +41,7 @@ static inline u64 btrfs_sb_offset(int mirror) return BTRFS_SUPER_INFO_OFFSET; } -struct btrfs_device; -struct btrfs_fs_devices; -struct btrfs_tree_parent_check; - -void btrfs_check_leaked_roots(struct btrfs_fs_info *fs_info); +void btrfs_check_leaked_roots(const struct btrfs_fs_info *fs_info); void btrfs_init_fs_info(struct btrfs_fs_info *fs_info); struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr, struct btrfs_tree_parent_check *check); @@ -40,12 +52,10 @@ struct extent_buffer *btrfs_find_create_tree_block( int btrfs_start_pre_rw_mount(struct btrfs_fs_info *fs_info); int btrfs_check_super_csum(struct btrfs_fs_info *fs_info, const struct btrfs_super_block *disk_sb); -int __cold open_ctree(struct super_block *sb, - struct btrfs_fs_devices *fs_devices, - char *options); +int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_devices); void __cold close_ctree(struct btrfs_fs_info *fs_info); -int btrfs_validate_super(struct btrfs_fs_info *fs_info, - struct btrfs_super_block *sb, int mirror_num); +int btrfs_validate_super(const struct btrfs_fs_info *fs_info, + const struct btrfs_super_block *sb, int mirror_num); int btrfs_check_features(struct btrfs_fs_info *fs_info, bool is_rw_mount); int write_all_supers(struct btrfs_fs_info *fs_info, int max_mirrors); struct btrfs_super_block *btrfs_read_dev_super(struct block_device *bdev); @@ -53,7 +63,7 @@ struct btrfs_super_block *btrfs_read_dev_one_super(struct block_device *bdev, int copy_num, bool drop_cache); int btrfs_commit_super(struct btrfs_fs_info *fs_info); struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root, - struct btrfs_key *key); + const 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); @@ -71,7 +81,6 @@ struct btrfs_root *btrfs_global_root(struct btrfs_fs_info *fs_info, struct btrfs_key *key); struct btrfs_root *btrfs_csum_root(struct btrfs_fs_info *fs_info, u64 bytenr); struct btrfs_root *btrfs_extent_root(struct btrfs_fs_info *fs_info, u64 bytenr); -struct btrfs_root *btrfs_block_group_root(struct btrfs_fs_info *fs_info); void btrfs_free_fs_info(struct btrfs_fs_info *fs_info); void btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info); @@ -79,7 +88,7 @@ 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); int btrfs_validate_extent_buffer(struct extent_buffer *eb, - struct btrfs_tree_parent_check *check); + const struct btrfs_tree_parent_check *check); #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info); #endif @@ -87,9 +96,6 @@ struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info); /* * This function is used to grab the root, and avoid it is freed when we * access it. But it doesn't ensure that the tree is not dropped. - * - * If you want to ensure the whole tree is safe, you should use - * fs_info->subvol_srcu */ static inline struct btrfs_root *btrfs_grab_root(struct btrfs_root *root) { @@ -106,7 +112,7 @@ void btrfs_mark_buffer_dirty(struct btrfs_trans_handle *trans, int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, int atomic); int btrfs_read_extent_buffer(struct extent_buffer *buf, - struct btrfs_tree_parent_check *check); + const struct btrfs_tree_parent_check *check); blk_status_t btree_csum_one_bio(struct btrfs_bio *bbio); int btrfs_alloc_log_tree_node(struct btrfs_trans_handle *trans, @@ -117,8 +123,7 @@ int btrfs_add_log_tree(struct btrfs_trans_handle *trans, struct btrfs_root *root); void btrfs_cleanup_dirty_bgs(struct btrfs_transaction *trans, struct btrfs_fs_info *fs_info); -void btrfs_cleanup_one_transaction(struct btrfs_transaction *trans, - struct btrfs_fs_info *fs_info); +void btrfs_cleanup_one_transaction(struct btrfs_transaction *trans); struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans, u64 objectid); int btrfs_get_num_tolerated_disk_barrier_failures(u64 flags); |