1 /* SPDX-License-Identifier: GPL-2.0 */
3 #ifndef BTRFS_ACCESSORS_H
4 #define BTRFS_ACCESSORS_H
6 #include <linux/stddef.h>
7 #include <asm/unaligned.h>
9 struct btrfs_map_token {
10 struct extent_buffer *eb;
15 void btrfs_init_map_token(struct btrfs_map_token *token, struct extent_buffer *eb);
18 * Some macros to generate set/get functions for the struct fields. This
19 * assumes there is a lefoo_to_cpu for every type, so lets make a simple one
22 #define le8_to_cpu(v) (v)
23 #define cpu_to_le8(v) (v)
26 static inline u8 get_unaligned_le8(const void *p)
31 static inline void put_unaligned_le8(u8 val, void *p)
36 #define read_eb_member(eb, ptr, type, member, result) (\
37 read_extent_buffer(eb, (char *)(result), \
38 ((unsigned long)(ptr)) + \
39 offsetof(type, member), \
40 sizeof_field(type, member)))
42 #define write_eb_member(eb, ptr, type, member, result) (\
43 write_extent_buffer(eb, (char *)(result), \
44 ((unsigned long)(ptr)) + \
45 offsetof(type, member), \
46 sizeof_field(type, member)))
48 #define DECLARE_BTRFS_SETGET_BITS(bits) \
49 u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \
50 const void *ptr, unsigned long off); \
51 void btrfs_set_token_##bits(struct btrfs_map_token *token, \
52 const void *ptr, unsigned long off, \
54 u##bits btrfs_get_##bits(const struct extent_buffer *eb, \
55 const void *ptr, unsigned long off); \
56 void btrfs_set_##bits(const struct extent_buffer *eb, void *ptr, \
57 unsigned long off, u##bits val);
59 DECLARE_BTRFS_SETGET_BITS(8)
60 DECLARE_BTRFS_SETGET_BITS(16)
61 DECLARE_BTRFS_SETGET_BITS(32)
62 DECLARE_BTRFS_SETGET_BITS(64)
64 #define BTRFS_SETGET_FUNCS(name, type, member, bits) \
65 static inline u##bits btrfs_##name(const struct extent_buffer *eb, \
68 static_assert(sizeof(u##bits) == sizeof_field(type, member)); \
69 return btrfs_get_##bits(eb, s, offsetof(type, member)); \
71 static inline void btrfs_set_##name(const struct extent_buffer *eb, type *s, \
74 static_assert(sizeof(u##bits) == sizeof_field(type, member)); \
75 btrfs_set_##bits(eb, s, offsetof(type, member), val); \
77 static inline u##bits btrfs_token_##name(struct btrfs_map_token *token, \
80 static_assert(sizeof(u##bits) == sizeof_field(type, member)); \
81 return btrfs_get_token_##bits(token, s, offsetof(type, member));\
83 static inline void btrfs_set_token_##name(struct btrfs_map_token *token,\
84 type *s, u##bits val) \
86 static_assert(sizeof(u##bits) == sizeof_field(type, member)); \
87 btrfs_set_token_##bits(token, s, offsetof(type, member), val); \
90 #define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \
91 static inline u##bits btrfs_##name(const struct extent_buffer *eb) \
93 const type *p = page_address(eb->pages[0]) + \
94 offset_in_page(eb->start); \
95 return get_unaligned_le##bits(&p->member); \
97 static inline void btrfs_set_##name(const struct extent_buffer *eb, \
100 type *p = page_address(eb->pages[0]) + offset_in_page(eb->start); \
101 put_unaligned_le##bits(val, &p->member); \
104 #define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits) \
105 static inline u##bits btrfs_##name(const type *s) \
107 return get_unaligned_le##bits(&s->member); \
109 static inline void btrfs_set_##name(type *s, u##bits val) \
111 put_unaligned_le##bits(val, &s->member); \
114 static inline u64 btrfs_device_total_bytes(const struct extent_buffer *eb,
115 struct btrfs_dev_item *s)
117 static_assert(sizeof(u64) == sizeof_field(struct btrfs_dev_item, total_bytes));
118 return btrfs_get_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes));
120 static inline void btrfs_set_device_total_bytes(const struct extent_buffer *eb,
121 struct btrfs_dev_item *s,
124 static_assert(sizeof(u64) == sizeof_field(struct btrfs_dev_item, total_bytes));
125 WARN_ON(!IS_ALIGNED(val, eb->fs_info->sectorsize));
126 btrfs_set_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes), val);
129 BTRFS_SETGET_FUNCS(device_type, struct btrfs_dev_item, type, 64);
130 BTRFS_SETGET_FUNCS(device_bytes_used, struct btrfs_dev_item, bytes_used, 64);
131 BTRFS_SETGET_FUNCS(device_io_align, struct btrfs_dev_item, io_align, 32);
132 BTRFS_SETGET_FUNCS(device_io_width, struct btrfs_dev_item, io_width, 32);
133 BTRFS_SETGET_FUNCS(device_start_offset, struct btrfs_dev_item, start_offset, 64);
134 BTRFS_SETGET_FUNCS(device_sector_size, struct btrfs_dev_item, sector_size, 32);
135 BTRFS_SETGET_FUNCS(device_id, struct btrfs_dev_item, devid, 64);
136 BTRFS_SETGET_FUNCS(device_group, struct btrfs_dev_item, dev_group, 32);
137 BTRFS_SETGET_FUNCS(device_seek_speed, struct btrfs_dev_item, seek_speed, 8);
138 BTRFS_SETGET_FUNCS(device_bandwidth, struct btrfs_dev_item, bandwidth, 8);
139 BTRFS_SETGET_FUNCS(device_generation, struct btrfs_dev_item, generation, 64);
141 BTRFS_SETGET_STACK_FUNCS(stack_device_type, struct btrfs_dev_item, type, 64);
142 BTRFS_SETGET_STACK_FUNCS(stack_device_total_bytes, struct btrfs_dev_item,
144 BTRFS_SETGET_STACK_FUNCS(stack_device_bytes_used, struct btrfs_dev_item,
146 BTRFS_SETGET_STACK_FUNCS(stack_device_io_align, struct btrfs_dev_item,
148 BTRFS_SETGET_STACK_FUNCS(stack_device_io_width, struct btrfs_dev_item,
150 BTRFS_SETGET_STACK_FUNCS(stack_device_sector_size, struct btrfs_dev_item,
152 BTRFS_SETGET_STACK_FUNCS(stack_device_id, struct btrfs_dev_item, devid, 64);
153 BTRFS_SETGET_STACK_FUNCS(stack_device_group, struct btrfs_dev_item, dev_group, 32);
154 BTRFS_SETGET_STACK_FUNCS(stack_device_seek_speed, struct btrfs_dev_item,
156 BTRFS_SETGET_STACK_FUNCS(stack_device_bandwidth, struct btrfs_dev_item,
158 BTRFS_SETGET_STACK_FUNCS(stack_device_generation, struct btrfs_dev_item,
161 static inline unsigned long btrfs_device_uuid(struct btrfs_dev_item *d)
163 return (unsigned long)d + offsetof(struct btrfs_dev_item, uuid);
166 static inline unsigned long btrfs_device_fsid(struct btrfs_dev_item *d)
168 return (unsigned long)d + offsetof(struct btrfs_dev_item, fsid);
171 BTRFS_SETGET_FUNCS(chunk_length, struct btrfs_chunk, length, 64);
172 BTRFS_SETGET_FUNCS(chunk_owner, struct btrfs_chunk, owner, 64);
173 BTRFS_SETGET_FUNCS(chunk_stripe_len, struct btrfs_chunk, stripe_len, 64);
174 BTRFS_SETGET_FUNCS(chunk_io_align, struct btrfs_chunk, io_align, 32);
175 BTRFS_SETGET_FUNCS(chunk_io_width, struct btrfs_chunk, io_width, 32);
176 BTRFS_SETGET_FUNCS(chunk_sector_size, struct btrfs_chunk, sector_size, 32);
177 BTRFS_SETGET_FUNCS(chunk_type, struct btrfs_chunk, type, 64);
178 BTRFS_SETGET_FUNCS(chunk_num_stripes, struct btrfs_chunk, num_stripes, 16);
179 BTRFS_SETGET_FUNCS(chunk_sub_stripes, struct btrfs_chunk, sub_stripes, 16);
180 BTRFS_SETGET_FUNCS(stripe_devid, struct btrfs_stripe, devid, 64);
181 BTRFS_SETGET_FUNCS(stripe_offset, struct btrfs_stripe, offset, 64);
183 static inline char *btrfs_stripe_dev_uuid(struct btrfs_stripe *s)
185 return (char *)s + offsetof(struct btrfs_stripe, dev_uuid);
188 BTRFS_SETGET_STACK_FUNCS(stack_chunk_length, struct btrfs_chunk, length, 64);
189 BTRFS_SETGET_STACK_FUNCS(stack_chunk_owner, struct btrfs_chunk, owner, 64);
190 BTRFS_SETGET_STACK_FUNCS(stack_chunk_stripe_len, struct btrfs_chunk,
192 BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_align, struct btrfs_chunk, io_align, 32);
193 BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_width, struct btrfs_chunk, io_width, 32);
194 BTRFS_SETGET_STACK_FUNCS(stack_chunk_sector_size, struct btrfs_chunk,
196 BTRFS_SETGET_STACK_FUNCS(stack_chunk_type, struct btrfs_chunk, type, 64);
197 BTRFS_SETGET_STACK_FUNCS(stack_chunk_num_stripes, struct btrfs_chunk,
199 BTRFS_SETGET_STACK_FUNCS(stack_chunk_sub_stripes, struct btrfs_chunk,
201 BTRFS_SETGET_STACK_FUNCS(stack_stripe_devid, struct btrfs_stripe, devid, 64);
202 BTRFS_SETGET_STACK_FUNCS(stack_stripe_offset, struct btrfs_stripe, offset, 64);
204 static inline struct btrfs_stripe *btrfs_stripe_nr(struct btrfs_chunk *c, int nr)
206 unsigned long offset = (unsigned long)c;
208 offset += offsetof(struct btrfs_chunk, stripe);
209 offset += nr * sizeof(struct btrfs_stripe);
210 return (struct btrfs_stripe *)offset;
213 static inline char *btrfs_stripe_dev_uuid_nr(struct btrfs_chunk *c, int nr)
215 return btrfs_stripe_dev_uuid(btrfs_stripe_nr(c, nr));
218 static inline u64 btrfs_stripe_offset_nr(const struct extent_buffer *eb,
219 struct btrfs_chunk *c, int nr)
221 return btrfs_stripe_offset(eb, btrfs_stripe_nr(c, nr));
224 static inline void btrfs_set_stripe_offset_nr(struct extent_buffer *eb,
225 struct btrfs_chunk *c, int nr,
228 btrfs_set_stripe_offset(eb, btrfs_stripe_nr(c, nr), val);
231 static inline u64 btrfs_stripe_devid_nr(const struct extent_buffer *eb,
232 struct btrfs_chunk *c, int nr)
234 return btrfs_stripe_devid(eb, btrfs_stripe_nr(c, nr));
237 static inline void btrfs_set_stripe_devid_nr(struct extent_buffer *eb,
238 struct btrfs_chunk *c, int nr,
241 btrfs_set_stripe_devid(eb, btrfs_stripe_nr(c, nr), val);
244 /* struct btrfs_block_group_item */
245 BTRFS_SETGET_STACK_FUNCS(stack_block_group_used, struct btrfs_block_group_item,
247 BTRFS_SETGET_FUNCS(block_group_used, struct btrfs_block_group_item, used, 64);
248 BTRFS_SETGET_STACK_FUNCS(stack_block_group_chunk_objectid,
249 struct btrfs_block_group_item, chunk_objectid, 64);
251 BTRFS_SETGET_FUNCS(block_group_chunk_objectid,
252 struct btrfs_block_group_item, chunk_objectid, 64);
253 BTRFS_SETGET_FUNCS(block_group_flags, struct btrfs_block_group_item, flags, 64);
254 BTRFS_SETGET_STACK_FUNCS(stack_block_group_flags,
255 struct btrfs_block_group_item, flags, 64);
257 /* struct btrfs_free_space_info */
258 BTRFS_SETGET_FUNCS(free_space_extent_count, struct btrfs_free_space_info,
260 BTRFS_SETGET_FUNCS(free_space_flags, struct btrfs_free_space_info, flags, 32);
262 /* struct btrfs_inode_ref */
263 BTRFS_SETGET_FUNCS(inode_ref_name_len, struct btrfs_inode_ref, name_len, 16);
264 BTRFS_SETGET_FUNCS(inode_ref_index, struct btrfs_inode_ref, index, 64);
265 BTRFS_SETGET_STACK_FUNCS(stack_inode_ref_name_len, struct btrfs_inode_ref, name_len, 16);
266 BTRFS_SETGET_STACK_FUNCS(stack_inode_ref_index, struct btrfs_inode_ref, index, 64);
268 /* struct btrfs_inode_extref */
269 BTRFS_SETGET_FUNCS(inode_extref_parent, struct btrfs_inode_extref,
270 parent_objectid, 64);
271 BTRFS_SETGET_FUNCS(inode_extref_name_len, struct btrfs_inode_extref,
273 BTRFS_SETGET_FUNCS(inode_extref_index, struct btrfs_inode_extref, index, 64);
275 /* struct btrfs_inode_item */
276 BTRFS_SETGET_FUNCS(inode_generation, struct btrfs_inode_item, generation, 64);
277 BTRFS_SETGET_FUNCS(inode_sequence, struct btrfs_inode_item, sequence, 64);
278 BTRFS_SETGET_FUNCS(inode_transid, struct btrfs_inode_item, transid, 64);
279 BTRFS_SETGET_FUNCS(inode_size, struct btrfs_inode_item, size, 64);
280 BTRFS_SETGET_FUNCS(inode_nbytes, struct btrfs_inode_item, nbytes, 64);
281 BTRFS_SETGET_FUNCS(inode_block_group, struct btrfs_inode_item, block_group, 64);
282 BTRFS_SETGET_FUNCS(inode_nlink, struct btrfs_inode_item, nlink, 32);
283 BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32);
284 BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32);
285 BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32);
286 BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64);
287 BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);
288 BTRFS_SETGET_STACK_FUNCS(stack_inode_generation, struct btrfs_inode_item,
290 BTRFS_SETGET_STACK_FUNCS(stack_inode_sequence, struct btrfs_inode_item,
292 BTRFS_SETGET_STACK_FUNCS(stack_inode_transid, struct btrfs_inode_item,
294 BTRFS_SETGET_STACK_FUNCS(stack_inode_size, struct btrfs_inode_item, size, 64);
295 BTRFS_SETGET_STACK_FUNCS(stack_inode_nbytes, struct btrfs_inode_item, nbytes, 64);
296 BTRFS_SETGET_STACK_FUNCS(stack_inode_block_group, struct btrfs_inode_item,
298 BTRFS_SETGET_STACK_FUNCS(stack_inode_nlink, struct btrfs_inode_item, nlink, 32);
299 BTRFS_SETGET_STACK_FUNCS(stack_inode_uid, struct btrfs_inode_item, uid, 32);
300 BTRFS_SETGET_STACK_FUNCS(stack_inode_gid, struct btrfs_inode_item, gid, 32);
301 BTRFS_SETGET_STACK_FUNCS(stack_inode_mode, struct btrfs_inode_item, mode, 32);
302 BTRFS_SETGET_STACK_FUNCS(stack_inode_rdev, struct btrfs_inode_item, rdev, 64);
303 BTRFS_SETGET_STACK_FUNCS(stack_inode_flags, struct btrfs_inode_item, flags, 64);
304 BTRFS_SETGET_FUNCS(timespec_sec, struct btrfs_timespec, sec, 64);
305 BTRFS_SETGET_FUNCS(timespec_nsec, struct btrfs_timespec, nsec, 32);
306 BTRFS_SETGET_STACK_FUNCS(stack_timespec_sec, struct btrfs_timespec, sec, 64);
307 BTRFS_SETGET_STACK_FUNCS(stack_timespec_nsec, struct btrfs_timespec, nsec, 32);
309 BTRFS_SETGET_FUNCS(stripe_extent_encoding, struct btrfs_stripe_extent, encoding, 8);
310 BTRFS_SETGET_FUNCS(raid_stride_devid, struct btrfs_raid_stride, devid, 64);
311 BTRFS_SETGET_FUNCS(raid_stride_physical, struct btrfs_raid_stride, physical, 64);
312 BTRFS_SETGET_STACK_FUNCS(stack_stripe_extent_encoding,
313 struct btrfs_stripe_extent, encoding, 8);
314 BTRFS_SETGET_STACK_FUNCS(stack_raid_stride_devid, struct btrfs_raid_stride, devid, 64);
315 BTRFS_SETGET_STACK_FUNCS(stack_raid_stride_physical, struct btrfs_raid_stride, physical, 64);
317 /* struct btrfs_dev_extent */
318 BTRFS_SETGET_FUNCS(dev_extent_chunk_tree, struct btrfs_dev_extent, chunk_tree, 64);
319 BTRFS_SETGET_FUNCS(dev_extent_chunk_objectid, struct btrfs_dev_extent,
321 BTRFS_SETGET_FUNCS(dev_extent_chunk_offset, struct btrfs_dev_extent,
323 BTRFS_SETGET_FUNCS(dev_extent_length, struct btrfs_dev_extent, length, 64);
324 BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_tree, struct btrfs_dev_extent,
326 BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_objectid, struct btrfs_dev_extent,
328 BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_offset, struct btrfs_dev_extent,
330 BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_length, struct btrfs_dev_extent, length, 64);
332 BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 64);
333 BTRFS_SETGET_FUNCS(extent_generation, struct btrfs_extent_item, generation, 64);
334 BTRFS_SETGET_FUNCS(extent_flags, struct btrfs_extent_item, flags, 64);
336 BTRFS_SETGET_FUNCS(tree_block_level, struct btrfs_tree_block_info, level, 8);
338 static inline void btrfs_tree_block_key(const struct extent_buffer *eb,
339 struct btrfs_tree_block_info *item,
340 struct btrfs_disk_key *key)
342 read_eb_member(eb, item, struct btrfs_tree_block_info, key, key);
345 static inline void btrfs_set_tree_block_key(const struct extent_buffer *eb,
346 struct btrfs_tree_block_info *item,
347 struct btrfs_disk_key *key)
349 write_eb_member(eb, item, struct btrfs_tree_block_info, key, key);
352 BTRFS_SETGET_FUNCS(extent_data_ref_root, struct btrfs_extent_data_ref, root, 64);
353 BTRFS_SETGET_FUNCS(extent_data_ref_objectid, struct btrfs_extent_data_ref,
355 BTRFS_SETGET_FUNCS(extent_data_ref_offset, struct btrfs_extent_data_ref,
357 BTRFS_SETGET_FUNCS(extent_data_ref_count, struct btrfs_extent_data_ref, count, 32);
359 BTRFS_SETGET_FUNCS(shared_data_ref_count, struct btrfs_shared_data_ref, count, 32);
361 BTRFS_SETGET_FUNCS(extent_owner_ref_root_id, struct btrfs_extent_owner_ref,
364 BTRFS_SETGET_FUNCS(extent_inline_ref_type, struct btrfs_extent_inline_ref,
366 BTRFS_SETGET_FUNCS(extent_inline_ref_offset, struct btrfs_extent_inline_ref,
369 static inline u32 btrfs_extent_inline_ref_size(int type)
371 if (type == BTRFS_TREE_BLOCK_REF_KEY ||
372 type == BTRFS_SHARED_BLOCK_REF_KEY)
373 return sizeof(struct btrfs_extent_inline_ref);
374 if (type == BTRFS_SHARED_DATA_REF_KEY)
375 return sizeof(struct btrfs_shared_data_ref) +
376 sizeof(struct btrfs_extent_inline_ref);
377 if (type == BTRFS_EXTENT_DATA_REF_KEY)
378 return sizeof(struct btrfs_extent_data_ref) +
379 offsetof(struct btrfs_extent_inline_ref, offset);
380 if (type == BTRFS_EXTENT_OWNER_REF_KEY)
381 return sizeof(struct btrfs_extent_inline_ref);
385 /* struct btrfs_node */
386 BTRFS_SETGET_FUNCS(key_blockptr, struct btrfs_key_ptr, blockptr, 64);
387 BTRFS_SETGET_FUNCS(key_generation, struct btrfs_key_ptr, generation, 64);
388 BTRFS_SETGET_STACK_FUNCS(stack_key_blockptr, struct btrfs_key_ptr, blockptr, 64);
389 BTRFS_SETGET_STACK_FUNCS(stack_key_generation, struct btrfs_key_ptr,
392 static inline u64 btrfs_node_blockptr(const struct extent_buffer *eb, int nr)
396 ptr = offsetof(struct btrfs_node, ptrs) +
397 sizeof(struct btrfs_key_ptr) * nr;
398 return btrfs_key_blockptr(eb, (struct btrfs_key_ptr *)ptr);
401 static inline void btrfs_set_node_blockptr(const struct extent_buffer *eb,
406 ptr = offsetof(struct btrfs_node, ptrs) +
407 sizeof(struct btrfs_key_ptr) * nr;
408 btrfs_set_key_blockptr(eb, (struct btrfs_key_ptr *)ptr, val);
411 static inline u64 btrfs_node_ptr_generation(const struct extent_buffer *eb, int nr)
415 ptr = offsetof(struct btrfs_node, ptrs) +
416 sizeof(struct btrfs_key_ptr) * nr;
417 return btrfs_key_generation(eb, (struct btrfs_key_ptr *)ptr);
420 static inline void btrfs_set_node_ptr_generation(const struct extent_buffer *eb,
425 ptr = offsetof(struct btrfs_node, ptrs) +
426 sizeof(struct btrfs_key_ptr) * nr;
427 btrfs_set_key_generation(eb, (struct btrfs_key_ptr *)ptr, val);
430 static inline unsigned long btrfs_node_key_ptr_offset(const struct extent_buffer *eb, int nr)
432 return offsetof(struct btrfs_node, ptrs) +
433 sizeof(struct btrfs_key_ptr) * nr;
436 void btrfs_node_key(const struct extent_buffer *eb,
437 struct btrfs_disk_key *disk_key, int nr);
439 static inline void btrfs_set_node_key(const struct extent_buffer *eb,
440 struct btrfs_disk_key *disk_key, int nr)
444 ptr = btrfs_node_key_ptr_offset(eb, nr);
445 write_eb_member(eb, (struct btrfs_key_ptr *)ptr,
446 struct btrfs_key_ptr, key, disk_key);
449 /* struct btrfs_item */
450 BTRFS_SETGET_FUNCS(raw_item_offset, struct btrfs_item, offset, 32);
451 BTRFS_SETGET_FUNCS(raw_item_size, struct btrfs_item, size, 32);
452 BTRFS_SETGET_STACK_FUNCS(stack_item_offset, struct btrfs_item, offset, 32);
453 BTRFS_SETGET_STACK_FUNCS(stack_item_size, struct btrfs_item, size, 32);
455 static inline unsigned long btrfs_item_nr_offset(const struct extent_buffer *eb, int nr)
457 return offsetof(struct btrfs_leaf, items) +
458 sizeof(struct btrfs_item) * nr;
461 static inline struct btrfs_item *btrfs_item_nr(const struct extent_buffer *eb, int nr)
463 return (struct btrfs_item *)btrfs_item_nr_offset(eb, nr);
466 #define BTRFS_ITEM_SETGET_FUNCS(member) \
467 static inline u32 btrfs_item_##member(const struct extent_buffer *eb, int slot) \
469 return btrfs_raw_item_##member(eb, btrfs_item_nr(eb, slot)); \
471 static inline void btrfs_set_item_##member(const struct extent_buffer *eb, \
474 btrfs_set_raw_item_##member(eb, btrfs_item_nr(eb, slot), val); \
476 static inline u32 btrfs_token_item_##member(struct btrfs_map_token *token, \
479 struct btrfs_item *item = btrfs_item_nr(token->eb, slot); \
480 return btrfs_token_raw_item_##member(token, item); \
482 static inline void btrfs_set_token_item_##member(struct btrfs_map_token *token, \
485 struct btrfs_item *item = btrfs_item_nr(token->eb, slot); \
486 btrfs_set_token_raw_item_##member(token, item, val); \
489 BTRFS_ITEM_SETGET_FUNCS(offset)
490 BTRFS_ITEM_SETGET_FUNCS(size);
492 static inline u32 btrfs_item_data_end(const struct extent_buffer *eb, int nr)
494 return btrfs_item_offset(eb, nr) + btrfs_item_size(eb, nr);
497 static inline void btrfs_item_key(const struct extent_buffer *eb,
498 struct btrfs_disk_key *disk_key, int nr)
500 struct btrfs_item *item = btrfs_item_nr(eb, nr);
502 read_eb_member(eb, item, struct btrfs_item, key, disk_key);
505 static inline void btrfs_set_item_key(struct extent_buffer *eb,
506 struct btrfs_disk_key *disk_key, int nr)
508 struct btrfs_item *item = btrfs_item_nr(eb, nr);
510 write_eb_member(eb, item, struct btrfs_item, key, disk_key);
513 BTRFS_SETGET_FUNCS(dir_log_end, struct btrfs_dir_log_item, end, 64);
515 /* struct btrfs_root_ref */
516 BTRFS_SETGET_FUNCS(root_ref_dirid, struct btrfs_root_ref, dirid, 64);
517 BTRFS_SETGET_FUNCS(root_ref_sequence, struct btrfs_root_ref, sequence, 64);
518 BTRFS_SETGET_FUNCS(root_ref_name_len, struct btrfs_root_ref, name_len, 16);
519 BTRFS_SETGET_STACK_FUNCS(stack_root_ref_dirid, struct btrfs_root_ref, dirid, 64);
520 BTRFS_SETGET_STACK_FUNCS(stack_root_ref_sequence, struct btrfs_root_ref, sequence, 64);
521 BTRFS_SETGET_STACK_FUNCS(stack_root_ref_name_len, struct btrfs_root_ref, name_len, 16);
523 /* struct btrfs_dir_item */
524 BTRFS_SETGET_FUNCS(dir_data_len, struct btrfs_dir_item, data_len, 16);
525 BTRFS_SETGET_FUNCS(dir_flags, struct btrfs_dir_item, type, 8);
526 BTRFS_SETGET_FUNCS(dir_name_len, struct btrfs_dir_item, name_len, 16);
527 BTRFS_SETGET_FUNCS(dir_transid, struct btrfs_dir_item, transid, 64);
528 BTRFS_SETGET_STACK_FUNCS(stack_dir_flags, struct btrfs_dir_item, type, 8);
529 BTRFS_SETGET_STACK_FUNCS(stack_dir_data_len, struct btrfs_dir_item, data_len, 16);
530 BTRFS_SETGET_STACK_FUNCS(stack_dir_name_len, struct btrfs_dir_item, name_len, 16);
531 BTRFS_SETGET_STACK_FUNCS(stack_dir_transid, struct btrfs_dir_item, transid, 64);
533 static inline u8 btrfs_dir_ftype(const struct extent_buffer *eb,
534 const struct btrfs_dir_item *item)
536 return btrfs_dir_flags_to_ftype(btrfs_dir_flags(eb, item));
539 static inline u8 btrfs_stack_dir_ftype(const struct btrfs_dir_item *item)
541 return btrfs_dir_flags_to_ftype(btrfs_stack_dir_flags(item));
544 static inline void btrfs_dir_item_key(const struct extent_buffer *eb,
545 const struct btrfs_dir_item *item,
546 struct btrfs_disk_key *key)
548 read_eb_member(eb, item, struct btrfs_dir_item, location, key);
551 static inline void btrfs_set_dir_item_key(struct extent_buffer *eb,
552 struct btrfs_dir_item *item,
553 const struct btrfs_disk_key *key)
555 write_eb_member(eb, item, struct btrfs_dir_item, location, key);
558 BTRFS_SETGET_FUNCS(free_space_entries, struct btrfs_free_space_header,
560 BTRFS_SETGET_FUNCS(free_space_bitmaps, struct btrfs_free_space_header,
562 BTRFS_SETGET_FUNCS(free_space_generation, struct btrfs_free_space_header,
565 static inline void btrfs_free_space_key(const struct extent_buffer *eb,
566 const struct btrfs_free_space_header *h,
567 struct btrfs_disk_key *key)
569 read_eb_member(eb, h, struct btrfs_free_space_header, location, key);
572 static inline void btrfs_set_free_space_key(struct extent_buffer *eb,
573 struct btrfs_free_space_header *h,
574 const struct btrfs_disk_key *key)
576 write_eb_member(eb, h, struct btrfs_free_space_header, location, key);
579 /* struct btrfs_disk_key */
580 BTRFS_SETGET_STACK_FUNCS(disk_key_objectid, struct btrfs_disk_key, objectid, 64);
581 BTRFS_SETGET_STACK_FUNCS(disk_key_offset, struct btrfs_disk_key, offset, 64);
582 BTRFS_SETGET_STACK_FUNCS(disk_key_type, struct btrfs_disk_key, type, 8);
584 #ifdef __LITTLE_ENDIAN
587 * Optimized helpers for little-endian architectures where CPU and on-disk
588 * structures have the same endianness and we can skip conversions.
591 static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu_key,
592 const struct btrfs_disk_key *disk_key)
594 memcpy(cpu_key, disk_key, sizeof(struct btrfs_key));
597 static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk_key,
598 const struct btrfs_key *cpu_key)
600 memcpy(disk_key, cpu_key, sizeof(struct btrfs_key));
603 static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
604 struct btrfs_key *cpu_key, int nr)
606 struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
608 btrfs_node_key(eb, disk_key, nr);
611 static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
612 struct btrfs_key *cpu_key, int nr)
614 struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
616 btrfs_item_key(eb, disk_key, nr);
619 static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
620 const struct btrfs_dir_item *item,
621 struct btrfs_key *cpu_key)
623 struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
625 btrfs_dir_item_key(eb, item, disk_key);
630 static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu,
631 const struct btrfs_disk_key *disk)
633 cpu->offset = le64_to_cpu(disk->offset);
634 cpu->type = disk->type;
635 cpu->objectid = le64_to_cpu(disk->objectid);
638 static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk,
639 const struct btrfs_key *cpu)
641 disk->offset = cpu_to_le64(cpu->offset);
642 disk->type = cpu->type;
643 disk->objectid = cpu_to_le64(cpu->objectid);
646 static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
647 struct btrfs_key *key, int nr)
649 struct btrfs_disk_key disk_key;
651 btrfs_node_key(eb, &disk_key, nr);
652 btrfs_disk_key_to_cpu(key, &disk_key);
655 static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
656 struct btrfs_key *key, int nr)
658 struct btrfs_disk_key disk_key;
660 btrfs_item_key(eb, &disk_key, nr);
661 btrfs_disk_key_to_cpu(key, &disk_key);
664 static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
665 const struct btrfs_dir_item *item,
666 struct btrfs_key *key)
668 struct btrfs_disk_key disk_key;
670 btrfs_dir_item_key(eb, item, &disk_key);
671 btrfs_disk_key_to_cpu(key, &disk_key);
676 /* struct btrfs_header */
677 BTRFS_SETGET_HEADER_FUNCS(header_bytenr, struct btrfs_header, bytenr, 64);
678 BTRFS_SETGET_HEADER_FUNCS(header_generation, struct btrfs_header, generation, 64);
679 BTRFS_SETGET_HEADER_FUNCS(header_owner, struct btrfs_header, owner, 64);
680 BTRFS_SETGET_HEADER_FUNCS(header_nritems, struct btrfs_header, nritems, 32);
681 BTRFS_SETGET_HEADER_FUNCS(header_flags, struct btrfs_header, flags, 64);
682 BTRFS_SETGET_HEADER_FUNCS(header_level, struct btrfs_header, level, 8);
683 BTRFS_SETGET_STACK_FUNCS(stack_header_generation, struct btrfs_header,
685 BTRFS_SETGET_STACK_FUNCS(stack_header_owner, struct btrfs_header, owner, 64);
686 BTRFS_SETGET_STACK_FUNCS(stack_header_nritems, struct btrfs_header, nritems, 32);
687 BTRFS_SETGET_STACK_FUNCS(stack_header_bytenr, struct btrfs_header, bytenr, 64);
689 static inline int btrfs_header_flag(const struct extent_buffer *eb, u64 flag)
691 return (btrfs_header_flags(eb) & flag) == flag;
694 static inline void btrfs_set_header_flag(struct extent_buffer *eb, u64 flag)
696 u64 flags = btrfs_header_flags(eb);
698 btrfs_set_header_flags(eb, flags | flag);
701 static inline void btrfs_clear_header_flag(struct extent_buffer *eb, u64 flag)
703 u64 flags = btrfs_header_flags(eb);
705 btrfs_set_header_flags(eb, flags & ~flag);
708 static inline int btrfs_header_backref_rev(const struct extent_buffer *eb)
710 u64 flags = btrfs_header_flags(eb);
712 return flags >> BTRFS_BACKREF_REV_SHIFT;
715 static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb, int rev)
717 u64 flags = btrfs_header_flags(eb);
719 flags &= ~BTRFS_BACKREF_REV_MASK;
720 flags |= (u64)rev << BTRFS_BACKREF_REV_SHIFT;
721 btrfs_set_header_flags(eb, flags);
724 static inline int btrfs_is_leaf(const struct extent_buffer *eb)
726 return btrfs_header_level(eb) == 0;
729 /* struct btrfs_root_item */
730 BTRFS_SETGET_FUNCS(disk_root_generation, struct btrfs_root_item, generation, 64);
731 BTRFS_SETGET_FUNCS(disk_root_refs, struct btrfs_root_item, refs, 32);
732 BTRFS_SETGET_FUNCS(disk_root_bytenr, struct btrfs_root_item, bytenr, 64);
733 BTRFS_SETGET_FUNCS(disk_root_level, struct btrfs_root_item, level, 8);
735 BTRFS_SETGET_STACK_FUNCS(root_generation, struct btrfs_root_item, generation, 64);
736 BTRFS_SETGET_STACK_FUNCS(root_bytenr, struct btrfs_root_item, bytenr, 64);
737 BTRFS_SETGET_STACK_FUNCS(root_drop_level, struct btrfs_root_item, drop_level, 8);
738 BTRFS_SETGET_STACK_FUNCS(root_level, struct btrfs_root_item, level, 8);
739 BTRFS_SETGET_STACK_FUNCS(root_dirid, struct btrfs_root_item, root_dirid, 64);
740 BTRFS_SETGET_STACK_FUNCS(root_refs, struct btrfs_root_item, refs, 32);
741 BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 64);
742 BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64);
743 BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64);
744 BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
746 BTRFS_SETGET_STACK_FUNCS(root_generation_v2, struct btrfs_root_item,
748 BTRFS_SETGET_STACK_FUNCS(root_ctransid, struct btrfs_root_item, ctransid, 64);
749 BTRFS_SETGET_STACK_FUNCS(root_otransid, struct btrfs_root_item, otransid, 64);
750 BTRFS_SETGET_STACK_FUNCS(root_stransid, struct btrfs_root_item, stransid, 64);
751 BTRFS_SETGET_STACK_FUNCS(root_rtransid, struct btrfs_root_item, rtransid, 64);
753 /* struct btrfs_root_backup */
754 BTRFS_SETGET_STACK_FUNCS(backup_tree_root, struct btrfs_root_backup,
756 BTRFS_SETGET_STACK_FUNCS(backup_tree_root_gen, struct btrfs_root_backup,
758 BTRFS_SETGET_STACK_FUNCS(backup_tree_root_level, struct btrfs_root_backup,
761 BTRFS_SETGET_STACK_FUNCS(backup_chunk_root, struct btrfs_root_backup,
763 BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_gen, struct btrfs_root_backup,
765 BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_level, struct btrfs_root_backup,
766 chunk_root_level, 8);
768 BTRFS_SETGET_STACK_FUNCS(backup_extent_root, struct btrfs_root_backup,
770 BTRFS_SETGET_STACK_FUNCS(backup_extent_root_gen, struct btrfs_root_backup,
771 extent_root_gen, 64);
772 BTRFS_SETGET_STACK_FUNCS(backup_extent_root_level, struct btrfs_root_backup,
773 extent_root_level, 8);
775 BTRFS_SETGET_STACK_FUNCS(backup_fs_root, struct btrfs_root_backup,
777 BTRFS_SETGET_STACK_FUNCS(backup_fs_root_gen, struct btrfs_root_backup,
779 BTRFS_SETGET_STACK_FUNCS(backup_fs_root_level, struct btrfs_root_backup,
782 BTRFS_SETGET_STACK_FUNCS(backup_dev_root, struct btrfs_root_backup,
784 BTRFS_SETGET_STACK_FUNCS(backup_dev_root_gen, struct btrfs_root_backup,
786 BTRFS_SETGET_STACK_FUNCS(backup_dev_root_level, struct btrfs_root_backup,
789 BTRFS_SETGET_STACK_FUNCS(backup_csum_root, struct btrfs_root_backup,
791 BTRFS_SETGET_STACK_FUNCS(backup_csum_root_gen, struct btrfs_root_backup,
793 BTRFS_SETGET_STACK_FUNCS(backup_csum_root_level, struct btrfs_root_backup,
795 BTRFS_SETGET_STACK_FUNCS(backup_total_bytes, struct btrfs_root_backup,
797 BTRFS_SETGET_STACK_FUNCS(backup_bytes_used, struct btrfs_root_backup,
799 BTRFS_SETGET_STACK_FUNCS(backup_num_devices, struct btrfs_root_backup,
802 /* struct btrfs_balance_item */
803 BTRFS_SETGET_FUNCS(balance_flags, struct btrfs_balance_item, flags, 64);
805 static inline void btrfs_balance_data(const struct extent_buffer *eb,
806 const struct btrfs_balance_item *bi,
807 struct btrfs_disk_balance_args *ba)
809 read_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
812 static inline void btrfs_set_balance_data(struct extent_buffer *eb,
813 struct btrfs_balance_item *bi,
814 const struct btrfs_disk_balance_args *ba)
816 write_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
819 static inline void btrfs_balance_meta(const struct extent_buffer *eb,
820 const struct btrfs_balance_item *bi,
821 struct btrfs_disk_balance_args *ba)
823 read_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
826 static inline void btrfs_set_balance_meta(struct extent_buffer *eb,
827 struct btrfs_balance_item *bi,
828 const struct btrfs_disk_balance_args *ba)
830 write_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
833 static inline void btrfs_balance_sys(const struct extent_buffer *eb,
834 const struct btrfs_balance_item *bi,
835 struct btrfs_disk_balance_args *ba)
837 read_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
840 static inline void btrfs_set_balance_sys(struct extent_buffer *eb,
841 struct btrfs_balance_item *bi,
842 const struct btrfs_disk_balance_args *ba)
844 write_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
847 static inline void btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu,
848 const struct btrfs_disk_balance_args *disk)
850 memset(cpu, 0, sizeof(*cpu));
852 cpu->profiles = le64_to_cpu(disk->profiles);
853 cpu->usage = le64_to_cpu(disk->usage);
854 cpu->devid = le64_to_cpu(disk->devid);
855 cpu->pstart = le64_to_cpu(disk->pstart);
856 cpu->pend = le64_to_cpu(disk->pend);
857 cpu->vstart = le64_to_cpu(disk->vstart);
858 cpu->vend = le64_to_cpu(disk->vend);
859 cpu->target = le64_to_cpu(disk->target);
860 cpu->flags = le64_to_cpu(disk->flags);
861 cpu->limit = le64_to_cpu(disk->limit);
862 cpu->stripes_min = le32_to_cpu(disk->stripes_min);
863 cpu->stripes_max = le32_to_cpu(disk->stripes_max);
866 static inline void btrfs_cpu_balance_args_to_disk(
867 struct btrfs_disk_balance_args *disk,
868 const struct btrfs_balance_args *cpu)
870 memset(disk, 0, sizeof(*disk));
872 disk->profiles = cpu_to_le64(cpu->profiles);
873 disk->usage = cpu_to_le64(cpu->usage);
874 disk->devid = cpu_to_le64(cpu->devid);
875 disk->pstart = cpu_to_le64(cpu->pstart);
876 disk->pend = cpu_to_le64(cpu->pend);
877 disk->vstart = cpu_to_le64(cpu->vstart);
878 disk->vend = cpu_to_le64(cpu->vend);
879 disk->target = cpu_to_le64(cpu->target);
880 disk->flags = cpu_to_le64(cpu->flags);
881 disk->limit = cpu_to_le64(cpu->limit);
882 disk->stripes_min = cpu_to_le32(cpu->stripes_min);
883 disk->stripes_max = cpu_to_le32(cpu->stripes_max);
886 /* struct btrfs_super_block */
887 BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64);
888 BTRFS_SETGET_STACK_FUNCS(super_flags, struct btrfs_super_block, flags, 64);
889 BTRFS_SETGET_STACK_FUNCS(super_generation, struct btrfs_super_block,
891 BTRFS_SETGET_STACK_FUNCS(super_root, struct btrfs_super_block, root, 64);
892 BTRFS_SETGET_STACK_FUNCS(super_sys_array_size,
893 struct btrfs_super_block, sys_chunk_array_size, 32);
894 BTRFS_SETGET_STACK_FUNCS(super_chunk_root_generation,
895 struct btrfs_super_block, chunk_root_generation, 64);
896 BTRFS_SETGET_STACK_FUNCS(super_root_level, struct btrfs_super_block,
898 BTRFS_SETGET_STACK_FUNCS(super_chunk_root, struct btrfs_super_block,
900 BTRFS_SETGET_STACK_FUNCS(super_chunk_root_level, struct btrfs_super_block,
901 chunk_root_level, 8);
902 BTRFS_SETGET_STACK_FUNCS(super_log_root, struct btrfs_super_block, log_root, 64);
903 BTRFS_SETGET_STACK_FUNCS(super_log_root_level, struct btrfs_super_block,
905 BTRFS_SETGET_STACK_FUNCS(super_total_bytes, struct btrfs_super_block,
907 BTRFS_SETGET_STACK_FUNCS(super_bytes_used, struct btrfs_super_block,
909 BTRFS_SETGET_STACK_FUNCS(super_sectorsize, struct btrfs_super_block,
911 BTRFS_SETGET_STACK_FUNCS(super_nodesize, struct btrfs_super_block,
913 BTRFS_SETGET_STACK_FUNCS(super_stripesize, struct btrfs_super_block,
915 BTRFS_SETGET_STACK_FUNCS(super_root_dir, struct btrfs_super_block,
916 root_dir_objectid, 64);
917 BTRFS_SETGET_STACK_FUNCS(super_num_devices, struct btrfs_super_block,
919 BTRFS_SETGET_STACK_FUNCS(super_compat_flags, struct btrfs_super_block,
921 BTRFS_SETGET_STACK_FUNCS(super_compat_ro_flags, struct btrfs_super_block,
922 compat_ro_flags, 64);
923 BTRFS_SETGET_STACK_FUNCS(super_incompat_flags, struct btrfs_super_block,
925 BTRFS_SETGET_STACK_FUNCS(super_csum_type, struct btrfs_super_block,
927 BTRFS_SETGET_STACK_FUNCS(super_cache_generation, struct btrfs_super_block,
928 cache_generation, 64);
929 BTRFS_SETGET_STACK_FUNCS(super_magic, struct btrfs_super_block, magic, 64);
930 BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block,
931 uuid_tree_generation, 64);
932 BTRFS_SETGET_STACK_FUNCS(super_nr_global_roots, struct btrfs_super_block,
933 nr_global_roots, 64);
935 /* struct btrfs_file_extent_item */
936 BTRFS_SETGET_STACK_FUNCS(stack_file_extent_type, struct btrfs_file_extent_item,
938 BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_bytenr,
939 struct btrfs_file_extent_item, disk_bytenr, 64);
940 BTRFS_SETGET_STACK_FUNCS(stack_file_extent_offset,
941 struct btrfs_file_extent_item, offset, 64);
942 BTRFS_SETGET_STACK_FUNCS(stack_file_extent_generation,
943 struct btrfs_file_extent_item, generation, 64);
944 BTRFS_SETGET_STACK_FUNCS(stack_file_extent_num_bytes,
945 struct btrfs_file_extent_item, num_bytes, 64);
946 BTRFS_SETGET_STACK_FUNCS(stack_file_extent_ram_bytes,
947 struct btrfs_file_extent_item, ram_bytes, 64);
948 BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_num_bytes,
949 struct btrfs_file_extent_item, disk_num_bytes, 64);
950 BTRFS_SETGET_STACK_FUNCS(stack_file_extent_compression,
951 struct btrfs_file_extent_item, compression, 8);
954 BTRFS_SETGET_FUNCS(file_extent_type, struct btrfs_file_extent_item, type, 8);
955 BTRFS_SETGET_FUNCS(file_extent_disk_bytenr, struct btrfs_file_extent_item,
957 BTRFS_SETGET_FUNCS(file_extent_generation, struct btrfs_file_extent_item,
959 BTRFS_SETGET_FUNCS(file_extent_disk_num_bytes, struct btrfs_file_extent_item,
961 BTRFS_SETGET_FUNCS(file_extent_offset, struct btrfs_file_extent_item,
963 BTRFS_SETGET_FUNCS(file_extent_num_bytes, struct btrfs_file_extent_item,
965 BTRFS_SETGET_FUNCS(file_extent_ram_bytes, struct btrfs_file_extent_item,
967 BTRFS_SETGET_FUNCS(file_extent_compression, struct btrfs_file_extent_item,
969 BTRFS_SETGET_FUNCS(file_extent_encryption, struct btrfs_file_extent_item,
971 BTRFS_SETGET_FUNCS(file_extent_other_encoding, struct btrfs_file_extent_item,
974 /* btrfs_qgroup_status_item */
975 BTRFS_SETGET_FUNCS(qgroup_status_generation, struct btrfs_qgroup_status_item,
977 BTRFS_SETGET_FUNCS(qgroup_status_version, struct btrfs_qgroup_status_item,
979 BTRFS_SETGET_FUNCS(qgroup_status_flags, struct btrfs_qgroup_status_item,
981 BTRFS_SETGET_FUNCS(qgroup_status_rescan, struct btrfs_qgroup_status_item,
983 BTRFS_SETGET_FUNCS(qgroup_status_enable_gen, struct btrfs_qgroup_status_item,
986 /* btrfs_qgroup_info_item */
987 BTRFS_SETGET_FUNCS(qgroup_info_generation, struct btrfs_qgroup_info_item,
989 BTRFS_SETGET_FUNCS(qgroup_info_rfer, struct btrfs_qgroup_info_item, rfer, 64);
990 BTRFS_SETGET_FUNCS(qgroup_info_rfer_cmpr, struct btrfs_qgroup_info_item,
992 BTRFS_SETGET_FUNCS(qgroup_info_excl, struct btrfs_qgroup_info_item, excl, 64);
993 BTRFS_SETGET_FUNCS(qgroup_info_excl_cmpr, struct btrfs_qgroup_info_item,
996 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_generation,
997 struct btrfs_qgroup_info_item, generation, 64);
998 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer, struct btrfs_qgroup_info_item,
1000 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer_cmpr,
1001 struct btrfs_qgroup_info_item, rfer_cmpr, 64);
1002 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl, struct btrfs_qgroup_info_item,
1004 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl_cmpr,
1005 struct btrfs_qgroup_info_item, excl_cmpr, 64);
1007 /* btrfs_qgroup_limit_item */
1008 BTRFS_SETGET_FUNCS(qgroup_limit_flags, struct btrfs_qgroup_limit_item, flags, 64);
1009 BTRFS_SETGET_FUNCS(qgroup_limit_max_rfer, struct btrfs_qgroup_limit_item,
1011 BTRFS_SETGET_FUNCS(qgroup_limit_max_excl, struct btrfs_qgroup_limit_item,
1013 BTRFS_SETGET_FUNCS(qgroup_limit_rsv_rfer, struct btrfs_qgroup_limit_item,
1015 BTRFS_SETGET_FUNCS(qgroup_limit_rsv_excl, struct btrfs_qgroup_limit_item,
1017 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_flags,
1018 struct btrfs_qgroup_limit_item, flags, 64);
1019 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_rfer,
1020 struct btrfs_qgroup_limit_item, max_rfer, 64);
1021 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_excl,
1022 struct btrfs_qgroup_limit_item, max_excl, 64);
1023 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_rfer,
1024 struct btrfs_qgroup_limit_item, rsv_rfer, 64);
1025 BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_excl,
1026 struct btrfs_qgroup_limit_item, rsv_excl, 64);
1028 /* btrfs_dev_replace_item */
1029 BTRFS_SETGET_FUNCS(dev_replace_src_devid,
1030 struct btrfs_dev_replace_item, src_devid, 64);
1031 BTRFS_SETGET_FUNCS(dev_replace_cont_reading_from_srcdev_mode,
1032 struct btrfs_dev_replace_item, cont_reading_from_srcdev_mode,
1034 BTRFS_SETGET_FUNCS(dev_replace_replace_state, struct btrfs_dev_replace_item,
1036 BTRFS_SETGET_FUNCS(dev_replace_time_started, struct btrfs_dev_replace_item,
1038 BTRFS_SETGET_FUNCS(dev_replace_time_stopped, struct btrfs_dev_replace_item,
1040 BTRFS_SETGET_FUNCS(dev_replace_num_write_errors, struct btrfs_dev_replace_item,
1041 num_write_errors, 64);
1042 BTRFS_SETGET_FUNCS(dev_replace_num_uncorrectable_read_errors,
1043 struct btrfs_dev_replace_item, num_uncorrectable_read_errors,
1045 BTRFS_SETGET_FUNCS(dev_replace_cursor_left, struct btrfs_dev_replace_item,
1047 BTRFS_SETGET_FUNCS(dev_replace_cursor_right, struct btrfs_dev_replace_item,
1050 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_src_devid,
1051 struct btrfs_dev_replace_item, src_devid, 64);
1052 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cont_reading_from_srcdev_mode,
1053 struct btrfs_dev_replace_item,
1054 cont_reading_from_srcdev_mode, 64);
1055 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_replace_state,
1056 struct btrfs_dev_replace_item, replace_state, 64);
1057 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_started,
1058 struct btrfs_dev_replace_item, time_started, 64);
1059 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_stopped,
1060 struct btrfs_dev_replace_item, time_stopped, 64);
1061 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_write_errors,
1062 struct btrfs_dev_replace_item, num_write_errors, 64);
1063 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_uncorrectable_read_errors,
1064 struct btrfs_dev_replace_item,
1065 num_uncorrectable_read_errors, 64);
1066 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_left,
1067 struct btrfs_dev_replace_item, cursor_left, 64);
1068 BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_right,
1069 struct btrfs_dev_replace_item, cursor_right, 64);
1071 /* btrfs_verity_descriptor_item */
1072 BTRFS_SETGET_FUNCS(verity_descriptor_encryption, struct btrfs_verity_descriptor_item,
1074 BTRFS_SETGET_FUNCS(verity_descriptor_size, struct btrfs_verity_descriptor_item,
1076 BTRFS_SETGET_STACK_FUNCS(stack_verity_descriptor_encryption,
1077 struct btrfs_verity_descriptor_item, encryption, 8);
1078 BTRFS_SETGET_STACK_FUNCS(stack_verity_descriptor_size,
1079 struct btrfs_verity_descriptor_item, size, 64);
1081 /* Cast into the data area of the leaf. */
1082 #define btrfs_item_ptr(leaf, slot, type) \
1083 ((type *)(btrfs_item_nr_offset(leaf, 0) + btrfs_item_offset(leaf, slot)))
1085 #define btrfs_item_ptr_offset(leaf, slot) \
1086 ((unsigned long)(btrfs_item_nr_offset(leaf, 0) + btrfs_item_offset(leaf, slot)))