diff options
Diffstat (limited to 'fs/btrfs/disk-io.h')
| -rw-r--r-- | fs/btrfs/disk-io.h | 74 |
1 files changed, 31 insertions, 43 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index f2f295eb6103..5320da83d0cf 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -6,6 +6,23 @@ #ifndef BTRFS_DISK_IO_H #define BTRFS_DISK_IO_H +#include <linux/sizes.h> +#include <linux/compiler_types.h> +#include "ctree.h" +#include "bio.h" +#include "ordered-data.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 @@ -25,39 +42,26 @@ 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); -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, struct btrfs_tree_parent_check *check); struct extent_buffer *btrfs_find_create_tree_block( struct btrfs_fs_info *fs_info, u64 bytenr, u64 owner_root, int level); -void btrfs_clean_tree_block(struct extent_buffer *buf); -void btrfs_clear_oneshot_options(struct btrfs_fs_info *fs_info); 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); -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); @@ -65,7 +69,7 @@ void btrfs_free_fs_roots(struct btrfs_fs_info *fs_info); struct btrfs_root *btrfs_get_fs_root(struct btrfs_fs_info *fs_info, u64 objectid, bool check_ref); struct btrfs_root *btrfs_get_new_fs_root(struct btrfs_fs_info *fs_info, - u64 objectid, dev_t anon_dev); + u64 objectid, dev_t *anon_dev); struct btrfs_root *btrfs_get_fs_root_commit_root(struct btrfs_fs_info *fs_info, struct btrfs_path *path, u64 objectid); @@ -75,18 +79,14 @@ 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); -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); -int btrfs_validate_metadata_buffer(struct btrfs_bio *bbio, - struct page *page, u64 start, u64 end, - int mirror); -void btrfs_submit_metadata_bio(struct btrfs_inode *inode, struct bio *bio, int mirror_num); +int btrfs_validate_extent_buffer(struct extent_buffer *eb, + 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 @@ -94,9 +94,6 @@ 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) { @@ -108,21 +105,13 @@ static inline struct btrfs_root *btrfs_grab_root(struct btrfs_root *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); +void btrfs_mark_buffer_dirty(struct btrfs_trans_handle *trans, + struct extent_buffer *buf); +int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, bool atomic); int btrfs_read_extent_buffer(struct extent_buffer *buf, - struct btrfs_tree_parent_check *check); - -enum btrfs_wq_submit_cmd { - WQ_SUBMIT_METADATA, - WQ_SUBMIT_DATA, - WQ_SUBMIT_DATA_DIO, -}; + const struct btrfs_tree_parent_check *check); -bool btrfs_wq_submit_bio(struct btrfs_inode *inode, struct bio *bio, int mirror_num, - u64 dio_file_offset, enum btrfs_wq_submit_cmd cmd); -blk_status_t btree_submit_bio_start(struct bio *bio); +int btree_csum_one_bio(struct btrfs_bio *bbio); int btrfs_alloc_log_tree_node(struct btrfs_trans_handle *trans, struct btrfs_root *root); int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans, @@ -131,8 +120,7 @@ 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); |