diff options
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r-- | fs/btrfs/ctree.h | 336 |
1 files changed, 224 insertions, 112 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index ad96495dedc5..03441a99ea38 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -45,6 +45,8 @@ struct btrfs_ordered_sum; #define BTRFS_MAX_LEVEL 8 +#define BTRFS_COMPAT_EXTENT_TREE_V0 + /* * files bigger than this get some pre-flushing when they are added * to the ordered operations list. That way we limit the total @@ -267,7 +269,18 @@ static inline unsigned long btrfs_chunk_item_size(int num_stripes) } #define BTRFS_FSID_SIZE 16 -#define BTRFS_HEADER_FLAG_WRITTEN (1 << 0) +#define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0) +#define BTRFS_HEADER_FLAG_RELOC (1ULL << 1) +#define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32) +#define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33) + +#define BTRFS_BACKREF_REV_MAX 256 +#define BTRFS_BACKREF_REV_SHIFT 56 +#define BTRFS_BACKREF_REV_MASK (((u64)BTRFS_BACKREF_REV_MAX - 1) << \ + BTRFS_BACKREF_REV_SHIFT) + +#define BTRFS_OLD_BACKREF_REV 0 +#define BTRFS_MIXED_BACKREF_REV 1 /* * every tree block (leaf or node) starts with this header. @@ -296,7 +309,6 @@ struct btrfs_header { sizeof(struct btrfs_item) - \ sizeof(struct btrfs_file_extent_item)) -#define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32) /* * this is a very generous portion of the super block, giving us @@ -355,9 +367,12 @@ struct btrfs_super_block { * Compat flags that we support. If any incompat flags are set other than the * ones specified below then we will fail to mount */ -#define BTRFS_FEATURE_COMPAT_SUPP 0x0 -#define BTRFS_FEATURE_COMPAT_RO_SUPP 0x0 -#define BTRFS_FEATURE_INCOMPAT_SUPP 0x0 +#define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF (1ULL << 0) + +#define BTRFS_FEATURE_COMPAT_SUPP 0ULL +#define BTRFS_FEATURE_COMPAT_RO_SUPP 0ULL +#define BTRFS_FEATURE_INCOMPAT_SUPP \ + BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF /* * A leaf is full of items. offset and size tell us where to find @@ -421,23 +436,65 @@ struct btrfs_path { unsigned int keep_locks:1; unsigned int skip_locking:1; unsigned int leave_spinning:1; + unsigned int search_commit_root:1; }; /* * items in the extent btree are used to record the objectid of the * owner of the block and the number of references */ + struct btrfs_extent_item { + __le64 refs; + __le64 generation; + __le64 flags; +} __attribute__ ((__packed__)); + +struct btrfs_extent_item_v0 { __le32 refs; } __attribute__ ((__packed__)); -struct btrfs_extent_ref { +#define BTRFS_MAX_EXTENT_ITEM_SIZE(r) ((BTRFS_LEAF_DATA_SIZE(r) >> 4) - \ + sizeof(struct btrfs_item)) + +#define BTRFS_EXTENT_FLAG_DATA (1ULL << 0) +#define BTRFS_EXTENT_FLAG_TREE_BLOCK (1ULL << 1) + +/* following flags only apply to tree blocks */ + +/* use full backrefs for extent pointers in the block */ +#define BTRFS_BLOCK_FLAG_FULL_BACKREF (1ULL << 8) + +struct btrfs_tree_block_info { + struct btrfs_disk_key key; + u8 level; +} __attribute__ ((__packed__)); + +struct btrfs_extent_data_ref { + __le64 root; + __le64 objectid; + __le64 offset; + __le32 count; +} __attribute__ ((__packed__)); + +struct btrfs_shared_data_ref { + __le32 count; +} __attribute__ ((__packed__)); + +struct btrfs_extent_inline_ref { + u8 type; + u64 offset; +} __attribute__ ((__packed__)); + +/* old style backrefs item */ +struct btrfs_extent_ref_v0 { __le64 root; __le64 generation; __le64 objectid; - __le32 num_refs; + __le32 count; } __attribute__ ((__packed__)); + /* dev extents record free space on individual devices. The owner * field points back to the chunk allocation mapping tree that allocated * the extent. The chunk tree uuid field is a way to double check the owner @@ -695,12 +752,7 @@ struct btrfs_block_group_cache { struct list_head cluster_list; }; -struct btrfs_leaf_ref_tree { - struct rb_root root; - struct list_head list; - spinlock_t lock; -}; - +struct reloc_control; struct btrfs_device; struct btrfs_fs_devices; struct btrfs_fs_info { @@ -831,18 +883,11 @@ struct btrfs_fs_info { struct task_struct *cleaner_kthread; int thread_pool_size; - /* tree relocation relocated fields */ - struct list_head dead_reloc_roots; - struct btrfs_leaf_ref_tree reloc_ref_tree; - struct btrfs_leaf_ref_tree shared_ref_tree; - struct kobject super_kobj; struct completion kobj_unregister; int do_barriers; int closing; int log_root_recovering; - atomic_t throttles; - atomic_t throttle_gen; u64 total_pinned; @@ -861,6 +906,8 @@ struct btrfs_fs_info { */ struct list_head space_info; + struct reloc_control *reloc_ctl; + spinlock_t delalloc_lock; spinlock_t new_trans_lock; u64 delalloc_bytes; @@ -881,6 +928,9 @@ struct btrfs_fs_info { u64 metadata_alloc_profile; u64 system_alloc_profile; + unsigned data_chunk_allocations; + unsigned metadata_ratio; + void *bdev_holder; }; @@ -888,7 +938,6 @@ struct btrfs_fs_info { * in ram representation of the tree. extent_root is used for all allocations * and for the extent tree extent_root root. */ -struct btrfs_dirty_root; struct btrfs_root { struct extent_buffer *node; @@ -896,9 +945,6 @@ struct btrfs_root { spinlock_t node_lock; struct extent_buffer *commit_root; - struct btrfs_leaf_ref_tree *ref_tree; - struct btrfs_leaf_ref_tree ref_tree_struct; - struct btrfs_dirty_root *dirty_root; struct btrfs_root *log_root; struct btrfs_root *reloc_root; @@ -949,10 +995,15 @@ struct btrfs_root { /* the dirty list is only used by non-reference counted roots */ struct list_head dirty_list; + struct list_head root_list; + spinlock_t list_lock; - struct list_head dead_list; struct list_head orphan_list; + spinlock_t inode_lock; + /* red-black tree that keeps track of in-memory inodes */ + struct rb_root inode_tree; + /* * right now this just gets used so that a root has its own devid * for stat. It may be used for more later @@ -1014,7 +1065,16 @@ struct btrfs_root { * are used, and how many references there are to each block */ #define BTRFS_EXTENT_ITEM_KEY 168 -#define BTRFS_EXTENT_REF_KEY 180 + +#define BTRFS_TREE_BLOCK_REF_KEY 176 + +#define BTRFS_EXTENT_DATA_REF_KEY 178 + +#define BTRFS_EXTENT_REF_V0_KEY 180 + +#define BTRFS_SHARED_BLOCK_REF_KEY 182 + +#define BTRFS_SHARED_DATA_REF_KEY 184 /* * block groups give us hints into the extent allocation trees. Which @@ -1040,6 +1100,8 @@ struct btrfs_root { #define BTRFS_MOUNT_COMPRESS (1 << 5) #define BTRFS_MOUNT_NOTREELOG (1 << 6) #define BTRFS_MOUNT_FLUSHONCOMMIT (1 << 7) +#define BTRFS_MOUNT_SSD_SPREAD (1 << 8) +#define BTRFS_MOUNT_NOSSD (1 << 9) #define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt) #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt) @@ -1053,12 +1115,14 @@ struct btrfs_root { #define BTRFS_INODE_READONLY (1 << 2) #define BTRFS_INODE_NOCOMPRESS (1 << 3) #define BTRFS_INODE_PREALLOC (1 << 4) -#define btrfs_clear_flag(inode, flag) (BTRFS_I(inode)->flags &= \ - ~BTRFS_INODE_##flag) -#define btrfs_set_flag(inode, flag) (BTRFS_I(inode)->flags |= \ - BTRFS_INODE_##flag) -#define btrfs_test_flag(inode, flag) (BTRFS_I(inode)->flags & \ - BTRFS_INODE_##flag) +#define BTRFS_INODE_SYNC (1 << 5) +#define BTRFS_INODE_IMMUTABLE (1 << 6) +#define BTRFS_INODE_APPEND (1 << 7) +#define BTRFS_INODE_NODUMP (1 << 8) +#define BTRFS_INODE_NOATIME (1 << 9) +#define BTRFS_INODE_DIRSYNC (1 << 10) + + /* some macros to generate set/get funcs for the struct fields. This * assumes there is a lefoo_to_cpu for every type, so lets make a simple * one for u8: @@ -1314,24 +1378,67 @@ static inline u8 *btrfs_dev_extent_chunk_tree_uuid(struct btrfs_dev_extent *dev) return (u8 *)((unsigned long)dev + ptr); } -/* struct btrfs_extent_ref */ -BTRFS_SETGET_FUNCS(ref_root, struct btrfs_extent_ref, root, 64); -BTRFS_SETGET_FUNCS(ref_generation, struct btrfs_extent_ref, generation, 64); -BTRFS_SETGET_FUNCS(ref_objectid, struct btrfs_extent_ref, objectid, 64); -BTRFS_SETGET_FUNCS(ref_num_refs, struct btrfs_extent_ref, num_refs, 32); +BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 64); +BTRFS_SETGET_FUNCS(extent_generation, struct btrfs_extent_item, + generation, 64); +BTRFS_SETGET_FUNCS(extent_flags, struct btrfs_extent_item, flags, 64); -BTRFS_SETGET_STACK_FUNCS(stack_ref_root, struct btrfs_extent_ref, root, 64); -BTRFS_SETGET_STACK_FUNCS(stack_ref_generation, struct btrfs_extent_ref, - generation, 64); -BTRFS_SETGET_STACK_FUNCS(stack_ref_objectid, struct btrfs_extent_ref, - objectid, 64); -BTRFS_SETGET_STACK_FUNCS(stack_ref_num_refs, struct btrfs_extent_ref, - num_refs, 32); +BTRFS_SETGET_FUNCS(extent_refs_v0, struct btrfs_extent_item_v0, refs, 32); + + +BTRFS_SETGET_FUNCS(tree_block_level, struct btrfs_tree_block_info, level, 8); + +static inline void btrfs_tree_block_key(struct extent_buffer *eb, + struct btrfs_tree_block_info *item, + struct btrfs_disk_key *key) +{ + read_eb_member(eb, item, struct btrfs_tree_block_info, key, key); +} + +static inline void btrfs_set_tree_block_key(struct extent_buffer *eb, + struct btrfs_tree_block_info *item, + struct btrfs_disk_key *key) +{ + write_eb_member(eb, item, struct btrfs_tree_block_info, key, key); +} + +BTRFS_SETGET_FUNCS(extent_data_ref_root, struct btrfs_extent_data_ref, + root, 64); +BTRFS_SETGET_FUNCS(extent_data_ref_objectid, struct btrfs_extent_data_ref, + objectid, 64); +BTRFS_SETGET_FUNCS(extent_data_ref_offset, struct btrfs_extent_data_ref, + offset, 64); +BTRFS_SETGET_FUNCS(extent_data_ref_count, struct btrfs_extent_data_ref, + count, 32); + +BTRFS_SETGET_FUNCS(shared_data_ref_count, struct btrfs_shared_data_ref, + count, 32); -/* struct btrfs_extent_item */ -BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 32); -BTRFS_SETGET_STACK_FUNCS(stack_extent_refs, struct btrfs_extent_item, - refs, 32); +BTRFS_SETGET_FUNCS(extent_inline_ref_type, struct btrfs_extent_inline_ref, + type, 8); +BTRFS_SETGET_FUNCS(extent_inline_ref_offset, struct btrfs_extent_inline_ref, + offset, 64); + +static inline u32 btrfs_extent_inline_ref_size(int type) +{ + if (type == BTRFS_TREE_BLOCK_REF_KEY || + type == BTRFS_SHARED_BLOCK_REF_KEY) + return sizeof(struct btrfs_extent_inline_ref); + if (type == BTRFS_SHARED_DATA_REF_KEY) + return sizeof(struct btrfs_shared_data_ref) + + sizeof(struct btrfs_extent_inline_ref); + if (type == BTRFS_EXTENT_DATA_REF_KEY) + return sizeof(struct btrfs_extent_data_ref) + + offsetof(struct btrfs_extent_inline_ref, offset); + BUG(); + return 0; +} + +BTRFS_SETGET_FUNCS(ref_root_v0, struct btrfs_extent_ref_v0, root, 64); +BTRFS_SETGET_FUNCS(ref_generation_v0, struct btrfs_extent_ref_v0, + generation, 64); +BTRFS_SETGET_FUNCS(ref_objectid_v0, struct btrfs_extent_ref_v0, objectid, 64); +BTRFS_SETGET_FUNCS(ref_count_v0, struct btrfs_extent_ref_v0, count, 32); /* struct btrfs_node */ BTRFS_SETGET_FUNCS(key_blockptr, struct btrfs_key_ptr, blockptr, 64); @@ -1555,6 +1662,21 @@ static inline int btrfs_clear_header_flag(struct extent_buffer *eb, u64 flag) return (flags & flag) == flag; } +static inline int btrfs_header_backref_rev(struct extent_buffer *eb) +{ + u64 flags = btrfs_header_flags(eb); + return flags >> BTRFS_BACKREF_REV_SHIFT; +} + +static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb, + int rev) +{ + u64 flags = btrfs_header_flags(eb); + flags &= ~BTRFS_BACKREF_REV_MASK; + flags |= (u64)rev << BTRFS_BACKREF_REV_SHIFT; + btrfs_set_header_flags(eb, flags); +} + static inline u8 *btrfs_header_fsid(struct extent_buffer *eb) { unsigned long ptr = offsetof(struct btrfs_header, fsid); @@ -1787,39 +1909,32 @@ int btrfs_update_pinned_extents(struct btrfs_root *root, int btrfs_drop_leaf_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *leaf); int btrfs_cross_ref_exist(struct btrfs_trans_handle *trans, - struct btrfs_root *root, u64 objectid, u64 bytenr); + struct btrfs_root *root, + u64 objectid, u64 offset, u64 bytenr); 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); +void btrfs_put_block_group(struct btrfs_block_group_cache *cache); 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, - u64 root_objectid, - u64 ref_generation, - int level, - u64 hint, - u64 empty_size); + struct btrfs_root *root, u32 blocksize, + u64 parent, u64 root_objectid, + struct btrfs_disk_key *key, int level, + u64 hint, u64 empty_size); struct extent_buffer *btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytenr, u32 blocksize, int level); -int btrfs_alloc_extent(struct btrfs_trans_handle *trans, - struct btrfs_root *root, - u64 num_bytes, u64 parent, u64 min_bytes, - u64 root_objectid, u64 ref_generation, - u64 owner, u64 empty_size, u64 hint_byte, - u64 search_end, struct btrfs_key *ins, u64 data); -int btrfs_alloc_reserved_extent(struct btrfs_trans_handle *trans, - struct btrfs_root *root, u64 parent, - u64 root_objectid, u64 ref_generation, - u64 owner, struct btrfs_key *ins); -int btrfs_alloc_logged_extent(struct btrfs_trans_handle *trans, - struct btrfs_root *root, u64 parent, - u64 root_objectid, u64 ref_generation, - u64 owner, struct btrfs_key *ins); +int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + u64 root_objectid, u64 owner, + u64 offset, struct btrfs_key *ins); +int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans, + struct btrfs_root *root, + u64 root_objectid, u64 owner, u64 offset, + struct btrfs_key *ins); int btrfs_reserve_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 num_bytes, u64 min_alloc_size, @@ -1827,18 +1942,18 @@ int btrfs_reserve_extent(struct btrfs_trans_handle *trans, u64 search_end, struct btrfs_key *ins, u64 data); int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, - struct extent_buffer *orig_buf, struct extent_buffer *buf, - u32 *nr_extents); -int btrfs_cache_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, - struct extent_buffer *buf, u32 nr_extents); -int btrfs_update_ref(struct btrfs_trans_handle *trans, - struct btrfs_root *root, struct extent_buffer *orig_buf, - struct extent_buffer *buf, int start_slot, int nr); + struct extent_buffer *buf, int full_backref); +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, + struct btrfs_root *root, + u64 bytenr, u64 num_bytes, u64 flags, + int is_data); int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytenr, u64 num_bytes, u64 parent, - u64 root_objectid, u64 ref_generation, - u64 owner_objectid, int pin); + u64 root_objectid, u64 owner, u64 offset); + int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len); int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans, struct btrfs_root *root, @@ -1846,13 +1961,8 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans, int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytenr, u64 num_bytes, u64 parent, - u64 root_objectid, u64 ref_generation, - u64 owner_objectid); -int btrfs_update_extent_ref(struct btrfs_trans_handle *trans, - struct btrfs_root *root, u64 bytenr, u64 num_bytes, - u64 orig_parent, u64 parent, - u64 root_objectid, u64 ref_generation, - u64 owner_objectid); + u64 root_objectid, u64 owner, u64 offset); + 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); @@ -1864,16 +1974,9 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, u64 size); int btrfs_remove_block_group(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 group_start); -int btrfs_relocate_block_group(struct btrfs_root *root, u64 group_start); -int btrfs_free_reloc_root(struct btrfs_trans_handle *trans, - struct btrfs_root *root); -int btrfs_drop_dead_reloc_roots(struct btrfs_root *root); -int btrfs_reloc_tree_cache_ref(struct btrfs_trans_handle *trans, - struct btrfs_root *root, - struct extent_buffer *buf, u64 orig_start); -int btrfs_add_dead_reloc_root(struct btrfs_root *root); -int btrfs_cleanup_reloc_trees(struct btrfs_root *root); -int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len); +int btrfs_prepare_block_group_relocation(struct btrfs_root *root, + struct btrfs_block_group_cache *group); + u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags); void btrfs_set_inode_space_info(struct btrfs_root *root, struct inode *ionde); void btrfs_clear_space_info_full(struct btrfs_fs_info *info); @@ -1888,13 +1991,12 @@ void btrfs_delalloc_reserve_space(struct btrfs_root *root, struct inode *inode, void btrfs_delalloc_free_space(struct btrfs_root *root, struct inode *inode, u64 bytes); /* ctree.c */ +int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key, + int level, int *slot); +int btrfs_comp_cpu_keys(struct btrfs_key *k1, struct btrfs_key *k2); int btrfs_previous_item(struct btrfs_root *root, struct btrfs_path *path, u64 min_objectid, int type); -int btrfs_merge_path(struct btrfs_trans_handle *trans, - struct btrfs_root *root, - struct btrfs_key *node_keys, - u64 *nodes, int lowest_level); int btrfs_set_item_key_safe(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_key *new_key); @@ -1915,6 +2017,8 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf, struct extent_buffer **cow_ret, u64 new_root_objectid); +int btrfs_block_can_be_shared(struct btrfs_root *root, + struct extent_buffer *buf); int btrfs_extend_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, u32 data_size); int btrfs_truncate_item(struct btrfs_trans_handle *trans, @@ -1941,9 +2045,6 @@ void btrfs_unlock_up_safe(struct btrfs_path *p, int level); int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int slot, int nr); -int btrfs_del_leaf(struct btrfs_trans_handle *trans, - struct btrfs_root *root, - struct btrfs_path *path, u64 bytenr); static inline int btrfs_del_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path) @@ -2002,8 +2103,9 @@ int btrfs_find_last_root(struct btrfs_root *root, u64 objectid, struct btrfs_root_item *item, struct btrfs_key *key); int btrfs_search_root(struct btrfs_root *root, u64 search_start, u64 *found_objectid); -int btrfs_find_dead_roots(struct btrfs_root *root, u64 objectid, - struct btrfs_root *latest_root); +int btrfs_find_dead_roots(struct btrfs_root *root, u64 objectid); +int btrfs_set_root_node(struct btrfs_root_item *item, + struct extent_buffer *node); /* dir-item.c */ int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, const char *name, @@ -2136,7 +2238,6 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf); int btrfs_readpage(struct file *file, struct page *page); void btrfs_delete_inode(struct inode *inode); void btrfs_put_inode(struct inode *inode); -void btrfs_read_locked_inode(struct inode *inode); int btrfs_write_inode(struct inode *inode, int wait); void btrfs_dirty_inode(struct inode *inode); struct inode *btrfs_alloc_inode(struct super_block *sb); @@ -2144,12 +2245,8 @@ void btrfs_destroy_inode(struct inode *inode); int btrfs_init_cachep(void); void btrfs_destroy_cachep(void); long btrfs_ioctl_trans_end(struct file *file); -struct inode *btrfs_ilookup(struct super_block *s, u64 objectid, - struct btrfs_root *root, int wait); -struct inode *btrfs_iget_locked(struct super_block *s, u64 objectid, - struct btrfs_root *root); struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location, - struct btrfs_root *root, int *is_new); + struct btrfs_root *root); int btrfs_commit_write(struct file *file, struct page *page, unsigned from, unsigned to); struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page, @@ -2165,6 +2262,8 @@ int btrfs_cont_expand(struct inode *inode, loff_t size); /* ioctl.c */ long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg); +void btrfs_update_iflags(struct inode *inode); +void btrfs_inherit_iflags(struct inode *inode, struct inode *dir); /* file.c */ int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync); @@ -2174,7 +2273,8 @@ int btrfs_check_file(struct btrfs_root *root, struct inode *inode); extern struct file_operations btrfs_file_operations; int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode, - u64 start, u64 end, u64 inline_limit, u64 *hint_block); + u64 start, u64 end, u64 locked_end, + u64 inline_limit, u64 *hint_block); int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode, u64 start, u64 end); @@ -2201,8 +2301,20 @@ int btrfs_parse_options(struct btrfs_root *root, char *options); int btrfs_sync_fs(struct super_block *sb, int wait); /* acl.c */ +#ifdef CONFIG_FS_POSIX_ACL int btrfs_check_acl(struct inode *inode, int mask); +#else +#define btrfs_check_acl NULL +#endif int btrfs_init_acl(struct inode *inode, struct inode *dir); int btrfs_acl_chmod(struct inode *inode); +/* relocation.c */ +int btrfs_relocate_block_group(struct btrfs_root *root, u64 group_start); +int btrfs_init_reloc_root(struct btrfs_trans_handle *trans, + struct btrfs_root *root); +int btrfs_update_reloc_root(struct btrfs_trans_handle *trans, + struct btrfs_root *root); +int btrfs_recover_relocation(struct btrfs_root *root); +int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len); #endif |