diff options
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 82 |
1 files changed, 31 insertions, 51 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 36df977b64d9..8aa7b9dac405 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -33,6 +33,7 @@ #include "extent_map.h" #include "async-thread.h" #include "block-rsv.h" +#include "locking.h" struct btrfs_trans_handle; struct btrfs_transaction; @@ -596,8 +597,8 @@ struct btrfs_fs_info { /* keep track of unallocated space */ atomic64_t free_chunk_space; - struct extent_io_tree freed_extents[2]; - struct extent_io_tree *pinned_extents; + /* Track ranges which are used by log trees blocks/logged data extents */ + struct extent_io_tree excluded_extents; /* logical->physical extent mapping */ struct extent_map_tree mapping_tree; @@ -696,7 +697,6 @@ struct btrfs_fs_info { struct rw_semaphore cleanup_work_sem; struct rw_semaphore subvol_sem; - struct srcu_struct subvol_srcu; spinlock_t trans_lock; /* @@ -947,6 +947,10 @@ struct btrfs_fs_info { #ifdef CONFIG_BTRFS_DEBUG struct kobject *debug_kobj; struct kobject *discard_debug_kobj; + struct list_head allocated_roots; + + spinlock_t eb_leak_lock; + struct list_head allocated_ebs; #endif }; @@ -955,11 +959,6 @@ static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb) return sb->s_fs_info; } -struct btrfs_subvolume_writers { - struct percpu_counter counter; - wait_queue_head_t wait; -}; - /* * The state of btrfs root */ @@ -1131,8 +1130,9 @@ struct btrfs_root { * root_item_lock. */ int dedupe_in_progress; - struct btrfs_subvolume_writers *subv_writers; - atomic_t will_be_snapshotted; + /* For exclusion of snapshot creation and nocow writes */ + struct btrfs_drew_lock snapshot_lock; + atomic_t snapshot_force_cow; /* For qgroup metadata reserved space */ @@ -1149,6 +1149,10 @@ struct btrfs_root { #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS u64 alloc_bytenr; #endif + +#ifdef CONFIG_BTRFS_DEBUG + struct list_head leak_list; +#endif }; struct btrfs_clone_extent_info { @@ -1971,16 +1975,6 @@ static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb, btrfs_set_header_flags(eb, flags); } -static inline unsigned long btrfs_header_fsid(void) -{ - return offsetof(struct btrfs_header, fsid); -} - -static inline unsigned long btrfs_header_chunk_tree_uuid(const struct extent_buffer *eb) -{ - return offsetof(struct btrfs_header, chunk_tree_uuid); -} - static inline int btrfs_is_leaf(const struct extent_buffer *eb) { return btrfs_header_level(eb) == 0; @@ -2458,9 +2452,9 @@ int btrfs_lookup_data_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len); int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, u64 bytenr, u64 offset, int metadata, u64 *refs, u64 *flags); -int btrfs_pin_extent(struct btrfs_fs_info *fs_info, - u64 bytenr, u64 num, int reserved); -int btrfs_pin_extent_for_log_replay(struct btrfs_fs_info *fs_info, +int btrfs_pin_extent(struct btrfs_trans_handle *trans, u64 bytenr, u64 num, + int reserved); +int btrfs_pin_extent_for_log_replay(struct btrfs_trans_handle *trans, u64 bytenr, u64 num_bytes); int btrfs_exclude_logged_extents(struct extent_buffer *eb); int btrfs_cross_ref_exist(struct btrfs_root *root, @@ -2490,13 +2484,13 @@ int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf, int full_backref); int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans, - u64 bytenr, u64 num_bytes, u64 flags, + struct extent_buffer *eb, u64 flags, int level, int is_data); int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref); int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len, int delalloc); -int btrfs_pin_reserved_extent(struct btrfs_fs_info *fs_info, u64 start, +int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans, u64 start, u64 len); void btrfs_prepare_extent_commit(struct btrfs_fs_info *fs_info); int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans); @@ -2665,9 +2659,8 @@ static inline int btrfs_next_item(struct btrfs_root *root, struct btrfs_path *p) return btrfs_next_old_item(root, p, 0); } int btrfs_leaf_free_space(struct extent_buffer *leaf); -int __must_check btrfs_drop_snapshot(struct btrfs_root *root, - struct btrfs_block_rsv *block_rsv, - int update_ref, int for_reloc); +int __must_check btrfs_drop_snapshot(struct btrfs_root *root, int update_ref, + int for_reloc); int btrfs_drop_subtree(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *node, @@ -2695,23 +2688,6 @@ static inline int btrfs_need_cleaner_sleep(struct btrfs_fs_info *fs_info) return fs_info->sb->s_flags & SB_RDONLY || btrfs_fs_closing(fs_info); } -static inline void free_fs_info(struct btrfs_fs_info *fs_info) -{ - kfree(fs_info->balance_ctl); - kfree(fs_info->delayed_root); - kfree(fs_info->extent_root); - kfree(fs_info->tree_root); - kfree(fs_info->chunk_root); - kfree(fs_info->dev_root); - kfree(fs_info->csum_root); - kfree(fs_info->quota_root); - kfree(fs_info->uuid_root); - kfree(fs_info->free_space_root); - kfree(fs_info->super_copy); - kfree(fs_info->super_for_commit); - kvfree(fs_info); -} - /* tree mod log functions from ctree.c */ u64 btrfs_get_tree_mod_seq(struct btrfs_fs_info *fs_info, struct seq_list *elem); @@ -2750,9 +2726,7 @@ int btrfs_uuid_tree_add(struct btrfs_trans_handle *trans, u8 *uuid, u8 type, u64 subid); int btrfs_uuid_tree_remove(struct btrfs_trans_handle *trans, u8 *uuid, u8 type, u64 subid); -int btrfs_uuid_tree_iterate(struct btrfs_fs_info *fs_info, - int (*check_func)(struct btrfs_fs_info *, u8 *, u8, - u64)); +int btrfs_uuid_tree_iterate(struct btrfs_fs_info *fs_info); /* dir-item.c */ int btrfs_check_dir_item_collision(struct btrfs_root *root, u64 dir, @@ -2859,6 +2833,12 @@ void btrfs_extent_item_to_extent_map(struct btrfs_inode *inode, struct btrfs_file_extent_item *fi, const bool new_inline, struct extent_map *em); +int btrfs_inode_clear_file_extent_range(struct btrfs_inode *inode, u64 start, + u64 len); +int btrfs_inode_set_file_extent_range(struct btrfs_inode *inode, u64 start, + u64 len); +void btrfs_inode_safe_disk_i_size_write(struct inode *inode, u64 new_i_size); +u64 btrfs_file_extent_end(const struct btrfs_path *path); /* inode.c */ struct extent_map *btrfs_get_extent_fiemap(struct btrfs_inode *inode, @@ -2996,9 +2976,6 @@ int btrfs_dirty_pages(struct inode *inode, struct page **pages, size_t num_pages, loff_t pos, size_t write_bytes, struct extent_state **cached); int btrfs_fdatawrite_range(struct inode *inode, loff_t start, loff_t end); -loff_t btrfs_remap_file_range(struct file *file_in, loff_t pos_in, - struct file *file_out, loff_t pos_out, - loff_t len, unsigned int remap_flags); /* tree-defrag.c */ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans, @@ -3008,6 +2985,8 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans, int btrfs_parse_options(struct btrfs_fs_info *info, char *options, unsigned long new_flags); int btrfs_sync_fs(struct super_block *sb, int wait); +char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info, + u64 subvol_objectid); static inline __printf(2, 3) __cold void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) @@ -3401,6 +3380,7 @@ void btrfs_reloc_pre_snapshot(struct btrfs_pending_snapshot *pending, u64 *bytes_to_reserve); int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans, struct btrfs_pending_snapshot *pending); +int btrfs_should_cancel_balance(struct btrfs_fs_info *fs_info); /* scrub.c */ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start, |