Line data Source code
1 : /* SPDX-License-Identifier: GPL-2.0 */
2 :
3 : #ifndef BTRFS_ACCESSORS_H
4 : #define BTRFS_ACCESSORS_H
5 :
6 : struct btrfs_map_token {
7 : struct extent_buffer *eb;
8 : char *kaddr;
9 : unsigned long offset;
10 : };
11 :
12 : void btrfs_init_map_token(struct btrfs_map_token *token, struct extent_buffer *eb);
13 :
14 : /*
15 : * Some macros to generate set/get functions for the struct fields. This
16 : * assumes there is a lefoo_to_cpu for every type, so lets make a simple one
17 : * for u8:
18 : */
19 : #define le8_to_cpu(v) (v)
20 : #define cpu_to_le8(v) (v)
21 : #define __le8 u8
22 :
23 : static inline u8 get_unaligned_le8(const void *p)
24 : {
25 0 : return *(u8 *)p;
26 : }
27 :
28 : static inline void put_unaligned_le8(u8 val, void *p)
29 : {
30 0 : *(u8 *)p = val;
31 : }
32 :
33 : #define read_eb_member(eb, ptr, type, member, result) (\
34 : read_extent_buffer(eb, (char *)(result), \
35 : ((unsigned long)(ptr)) + \
36 : offsetof(type, member), \
37 : sizeof(((type *)0)->member)))
38 :
39 : #define write_eb_member(eb, ptr, type, member, result) (\
40 : write_extent_buffer(eb, (char *)(result), \
41 : ((unsigned long)(ptr)) + \
42 : offsetof(type, member), \
43 : sizeof(((type *)0)->member)))
44 :
45 : #define DECLARE_BTRFS_SETGET_BITS(bits) \
46 : u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \
47 : const void *ptr, unsigned long off); \
48 : void btrfs_set_token_##bits(struct btrfs_map_token *token, \
49 : const void *ptr, unsigned long off, \
50 : u##bits val); \
51 : u##bits btrfs_get_##bits(const struct extent_buffer *eb, \
52 : const void *ptr, unsigned long off); \
53 : void btrfs_set_##bits(const struct extent_buffer *eb, void *ptr, \
54 : unsigned long off, u##bits val);
55 :
56 : DECLARE_BTRFS_SETGET_BITS(8)
57 : DECLARE_BTRFS_SETGET_BITS(16)
58 : DECLARE_BTRFS_SETGET_BITS(32)
59 : DECLARE_BTRFS_SETGET_BITS(64)
60 :
61 : #define BTRFS_SETGET_FUNCS(name, type, member, bits) \
62 : static inline u##bits btrfs_##name(const struct extent_buffer *eb, \
63 : const type *s) \
64 : { \
65 : static_assert(sizeof(u##bits) == sizeof(((type *)0))->member); \
66 : return btrfs_get_##bits(eb, s, offsetof(type, member)); \
67 : } \
68 : static inline void btrfs_set_##name(const struct extent_buffer *eb, type *s, \
69 : u##bits val) \
70 : { \
71 : static_assert(sizeof(u##bits) == sizeof(((type *)0))->member); \
72 : btrfs_set_##bits(eb, s, offsetof(type, member), val); \
73 : } \
74 : static inline u##bits btrfs_token_##name(struct btrfs_map_token *token, \
75 : const type *s) \
76 : { \
77 : static_assert(sizeof(u##bits) == sizeof(((type *)0))->member); \
78 : return btrfs_get_token_##bits(token, s, offsetof(type, member));\
79 : } \
80 : static inline void btrfs_set_token_##name(struct btrfs_map_token *token,\
81 : type *s, u##bits val) \
82 : { \
83 : static_assert(sizeof(u##bits) == sizeof(((type *)0))->member); \
84 : btrfs_set_token_##bits(token, s, offsetof(type, member), val); \
85 : }
86 :
87 : #define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \
88 : static inline u##bits btrfs_##name(const struct extent_buffer *eb) \
89 : { \
90 : const type *p = page_address(eb->pages[0]) + \
91 : offset_in_page(eb->start); \
92 : return get_unaligned_le##bits(&p->member); \
93 : } \
94 : static inline void btrfs_set_##name(const struct extent_buffer *eb, \
95 : u##bits val) \
96 : { \
97 : type *p = page_address(eb->pages[0]) + offset_in_page(eb->start); \
98 : put_unaligned_le##bits(val, &p->member); \
99 : }
100 :
101 : #define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits) \
102 : static inline u##bits btrfs_##name(const type *s) \
103 : { \
104 : return get_unaligned_le##bits(&s->member); \
105 : } \
106 : static inline void btrfs_set_##name(type *s, u##bits val) \
107 : { \
108 : put_unaligned_le##bits(val, &s->member); \
109 : }
110 :
111 : static inline u64 btrfs_device_total_bytes(const struct extent_buffer *eb,
112 : struct btrfs_dev_item *s)
113 : {
114 0 : static_assert(sizeof(u64) ==
115 : sizeof(((struct btrfs_dev_item *)0))->total_bytes);
116 0 : return btrfs_get_64(eb, s, offsetof(struct btrfs_dev_item,
117 : total_bytes));
118 : }
119 0 : static inline void btrfs_set_device_total_bytes(const struct extent_buffer *eb,
120 : struct btrfs_dev_item *s,
121 : u64 val)
122 : {
123 0 : static_assert(sizeof(u64) ==
124 : sizeof(((struct btrfs_dev_item *)0))->total_bytes);
125 0 : WARN_ON(!IS_ALIGNED(val, eb->fs_info->sectorsize));
126 0 : btrfs_set_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes), val);
127 0 : }
128 :
129 0 : BTRFS_SETGET_FUNCS(device_type, struct btrfs_dev_item, type, 64);
130 0 : BTRFS_SETGET_FUNCS(device_bytes_used, struct btrfs_dev_item, bytes_used, 64);
131 0 : BTRFS_SETGET_FUNCS(device_io_align, struct btrfs_dev_item, io_align, 32);
132 0 : BTRFS_SETGET_FUNCS(device_io_width, struct btrfs_dev_item, io_width, 32);
133 0 : BTRFS_SETGET_FUNCS(device_start_offset, struct btrfs_dev_item, start_offset, 64);
134 0 : BTRFS_SETGET_FUNCS(device_sector_size, struct btrfs_dev_item, sector_size, 32);
135 0 : BTRFS_SETGET_FUNCS(device_id, struct btrfs_dev_item, devid, 64);
136 0 : BTRFS_SETGET_FUNCS(device_group, struct btrfs_dev_item, dev_group, 32);
137 0 : BTRFS_SETGET_FUNCS(device_seek_speed, struct btrfs_dev_item, seek_speed, 8);
138 0 : BTRFS_SETGET_FUNCS(device_bandwidth, struct btrfs_dev_item, bandwidth, 8);
139 0 : BTRFS_SETGET_FUNCS(device_generation, struct btrfs_dev_item, generation, 64);
140 :
141 0 : BTRFS_SETGET_STACK_FUNCS(stack_device_type, struct btrfs_dev_item, type, 64);
142 0 : BTRFS_SETGET_STACK_FUNCS(stack_device_total_bytes, struct btrfs_dev_item,
143 : total_bytes, 64);
144 0 : BTRFS_SETGET_STACK_FUNCS(stack_device_bytes_used, struct btrfs_dev_item,
145 : bytes_used, 64);
146 0 : BTRFS_SETGET_STACK_FUNCS(stack_device_io_align, struct btrfs_dev_item,
147 : io_align, 32);
148 0 : BTRFS_SETGET_STACK_FUNCS(stack_device_io_width, struct btrfs_dev_item,
149 : io_width, 32);
150 0 : BTRFS_SETGET_STACK_FUNCS(stack_device_sector_size, struct btrfs_dev_item,
151 : sector_size, 32);
152 4 : 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,
155 : seek_speed, 8);
156 : BTRFS_SETGET_STACK_FUNCS(stack_device_bandwidth, struct btrfs_dev_item,
157 : bandwidth, 8);
158 0 : BTRFS_SETGET_STACK_FUNCS(stack_device_generation, struct btrfs_dev_item,
159 : generation, 64);
160 :
161 : static inline unsigned long btrfs_device_uuid(struct btrfs_dev_item *d)
162 : {
163 0 : return (unsigned long)d + offsetof(struct btrfs_dev_item, uuid);
164 : }
165 :
166 : static inline unsigned long btrfs_device_fsid(struct btrfs_dev_item *d)
167 : {
168 0 : return (unsigned long)d + offsetof(struct btrfs_dev_item, fsid);
169 : }
170 :
171 0 : BTRFS_SETGET_FUNCS(chunk_length, struct btrfs_chunk, length, 64);
172 0 : BTRFS_SETGET_FUNCS(chunk_owner, struct btrfs_chunk, owner, 64);
173 0 : BTRFS_SETGET_FUNCS(chunk_stripe_len, struct btrfs_chunk, stripe_len, 64);
174 0 : BTRFS_SETGET_FUNCS(chunk_io_align, struct btrfs_chunk, io_align, 32);
175 0 : BTRFS_SETGET_FUNCS(chunk_io_width, struct btrfs_chunk, io_width, 32);
176 0 : BTRFS_SETGET_FUNCS(chunk_sector_size, struct btrfs_chunk, sector_size, 32);
177 0 : BTRFS_SETGET_FUNCS(chunk_type, struct btrfs_chunk, type, 64);
178 0 : BTRFS_SETGET_FUNCS(chunk_num_stripes, struct btrfs_chunk, num_stripes, 16);
179 0 : BTRFS_SETGET_FUNCS(chunk_sub_stripes, struct btrfs_chunk, sub_stripes, 16);
180 0 : BTRFS_SETGET_FUNCS(stripe_devid, struct btrfs_stripe, devid, 64);
181 0 : BTRFS_SETGET_FUNCS(stripe_offset, struct btrfs_stripe, offset, 64);
182 :
183 : static inline char *btrfs_stripe_dev_uuid(struct btrfs_stripe *s)
184 : {
185 0 : return (char *)s + offsetof(struct btrfs_stripe, dev_uuid);
186 : }
187 :
188 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_length, struct btrfs_chunk, length, 64);
189 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_owner, struct btrfs_chunk, owner, 64);
190 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_stripe_len, struct btrfs_chunk,
191 : stripe_len, 64);
192 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_align, struct btrfs_chunk, io_align, 32);
193 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_width, struct btrfs_chunk, io_width, 32);
194 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_sector_size, struct btrfs_chunk,
195 : sector_size, 32);
196 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_type, struct btrfs_chunk, type, 64);
197 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_num_stripes, struct btrfs_chunk,
198 : num_stripes, 16);
199 0 : BTRFS_SETGET_STACK_FUNCS(stack_chunk_sub_stripes, struct btrfs_chunk,
200 : sub_stripes, 16);
201 0 : BTRFS_SETGET_STACK_FUNCS(stack_stripe_devid, struct btrfs_stripe, devid, 64);
202 0 : BTRFS_SETGET_STACK_FUNCS(stack_stripe_offset, struct btrfs_stripe, offset, 64);
203 :
204 : static inline struct btrfs_stripe *btrfs_stripe_nr(struct btrfs_chunk *c, int nr)
205 : {
206 0 : unsigned long offset = (unsigned long)c;
207 :
208 0 : offset += offsetof(struct btrfs_chunk, stripe);
209 0 : offset += nr * sizeof(struct btrfs_stripe);
210 0 : return (struct btrfs_stripe *)offset;
211 : }
212 :
213 : static inline char *btrfs_stripe_dev_uuid_nr(struct btrfs_chunk *c, int nr)
214 : {
215 0 : return btrfs_stripe_dev_uuid(btrfs_stripe_nr(c, nr));
216 : }
217 :
218 : static inline u64 btrfs_stripe_offset_nr(const struct extent_buffer *eb,
219 : struct btrfs_chunk *c, int nr)
220 : {
221 0 : return btrfs_stripe_offset(eb, btrfs_stripe_nr(c, nr));
222 : }
223 :
224 : static inline void btrfs_set_stripe_offset_nr(struct extent_buffer *eb,
225 : struct btrfs_chunk *c, int nr,
226 : u64 val)
227 : {
228 : btrfs_set_stripe_offset(eb, btrfs_stripe_nr(c, nr), val);
229 : }
230 :
231 : static inline u64 btrfs_stripe_devid_nr(const struct extent_buffer *eb,
232 : struct btrfs_chunk *c, int nr)
233 : {
234 0 : return btrfs_stripe_devid(eb, btrfs_stripe_nr(c, nr));
235 : }
236 :
237 : static inline void btrfs_set_stripe_devid_nr(struct extent_buffer *eb,
238 : struct btrfs_chunk *c, int nr,
239 : u64 val)
240 : {
241 : btrfs_set_stripe_devid(eb, btrfs_stripe_nr(c, nr), val);
242 : }
243 :
244 : /* struct btrfs_block_group_item */
245 0 : BTRFS_SETGET_STACK_FUNCS(stack_block_group_used, struct btrfs_block_group_item,
246 : used, 64);
247 0 : BTRFS_SETGET_FUNCS(block_group_used, struct btrfs_block_group_item, used, 64);
248 0 : BTRFS_SETGET_STACK_FUNCS(stack_block_group_chunk_objectid,
249 : struct btrfs_block_group_item, chunk_objectid, 64);
250 :
251 0 : BTRFS_SETGET_FUNCS(block_group_chunk_objectid,
252 : struct btrfs_block_group_item, chunk_objectid, 64);
253 0 : BTRFS_SETGET_FUNCS(block_group_flags, struct btrfs_block_group_item, flags, 64);
254 0 : BTRFS_SETGET_STACK_FUNCS(stack_block_group_flags,
255 : struct btrfs_block_group_item, flags, 64);
256 :
257 : /* struct btrfs_free_space_info */
258 0 : BTRFS_SETGET_FUNCS(free_space_extent_count, struct btrfs_free_space_info,
259 : extent_count, 32);
260 0 : BTRFS_SETGET_FUNCS(free_space_flags, struct btrfs_free_space_info, flags, 32);
261 :
262 : /* struct btrfs_inode_ref */
263 0 : BTRFS_SETGET_FUNCS(inode_ref_name_len, struct btrfs_inode_ref, name_len, 16);
264 0 : 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);
267 :
268 : /* struct btrfs_inode_extref */
269 0 : BTRFS_SETGET_FUNCS(inode_extref_parent, struct btrfs_inode_extref,
270 : parent_objectid, 64);
271 0 : BTRFS_SETGET_FUNCS(inode_extref_name_len, struct btrfs_inode_extref,
272 : name_len, 16);
273 0 : BTRFS_SETGET_FUNCS(inode_extref_index, struct btrfs_inode_extref, index, 64);
274 :
275 : /* struct btrfs_inode_item */
276 0 : BTRFS_SETGET_FUNCS(inode_generation, struct btrfs_inode_item, generation, 64);
277 0 : BTRFS_SETGET_FUNCS(inode_sequence, struct btrfs_inode_item, sequence, 64);
278 0 : BTRFS_SETGET_FUNCS(inode_transid, struct btrfs_inode_item, transid, 64);
279 0 : BTRFS_SETGET_FUNCS(inode_size, struct btrfs_inode_item, size, 64);
280 0 : BTRFS_SETGET_FUNCS(inode_nbytes, struct btrfs_inode_item, nbytes, 64);
281 0 : BTRFS_SETGET_FUNCS(inode_block_group, struct btrfs_inode_item, block_group, 64);
282 0 : BTRFS_SETGET_FUNCS(inode_nlink, struct btrfs_inode_item, nlink, 32);
283 0 : BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32);
284 0 : BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32);
285 0 : BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32);
286 0 : BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64);
287 0 : BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);
288 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_generation, struct btrfs_inode_item,
289 : generation, 64);
290 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_sequence, struct btrfs_inode_item,
291 : sequence, 64);
292 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_transid, struct btrfs_inode_item,
293 : transid, 64);
294 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_size, struct btrfs_inode_item, size, 64);
295 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_nbytes, struct btrfs_inode_item, nbytes, 64);
296 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_block_group, struct btrfs_inode_item,
297 : block_group, 64);
298 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_nlink, struct btrfs_inode_item, nlink, 32);
299 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_uid, struct btrfs_inode_item, uid, 32);
300 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_gid, struct btrfs_inode_item, gid, 32);
301 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_mode, struct btrfs_inode_item, mode, 32);
302 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_rdev, struct btrfs_inode_item, rdev, 64);
303 0 : BTRFS_SETGET_STACK_FUNCS(stack_inode_flags, struct btrfs_inode_item, flags, 64);
304 0 : BTRFS_SETGET_FUNCS(timespec_sec, struct btrfs_timespec, sec, 64);
305 0 : BTRFS_SETGET_FUNCS(timespec_nsec, struct btrfs_timespec, nsec, 32);
306 0 : BTRFS_SETGET_STACK_FUNCS(stack_timespec_sec, struct btrfs_timespec, sec, 64);
307 0 : BTRFS_SETGET_STACK_FUNCS(stack_timespec_nsec, struct btrfs_timespec, nsec, 32);
308 :
309 : /* struct btrfs_dev_extent */
310 0 : BTRFS_SETGET_FUNCS(dev_extent_chunk_tree, struct btrfs_dev_extent, chunk_tree, 64);
311 0 : BTRFS_SETGET_FUNCS(dev_extent_chunk_objectid, struct btrfs_dev_extent,
312 : chunk_objectid, 64);
313 0 : BTRFS_SETGET_FUNCS(dev_extent_chunk_offset, struct btrfs_dev_extent,
314 : chunk_offset, 64);
315 0 : BTRFS_SETGET_FUNCS(dev_extent_length, struct btrfs_dev_extent, length, 64);
316 : BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_tree, struct btrfs_dev_extent,
317 : chunk_tree, 64);
318 : BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_objectid, struct btrfs_dev_extent,
319 : chunk_objectid, 64);
320 : BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_offset, struct btrfs_dev_extent,
321 : chunk_offset, 64);
322 : BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_length, struct btrfs_dev_extent, length, 64);
323 :
324 0 : BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 64);
325 0 : BTRFS_SETGET_FUNCS(extent_generation, struct btrfs_extent_item, generation, 64);
326 0 : BTRFS_SETGET_FUNCS(extent_flags, struct btrfs_extent_item, flags, 64);
327 :
328 0 : BTRFS_SETGET_FUNCS(tree_block_level, struct btrfs_tree_block_info, level, 8);
329 :
330 : static inline void btrfs_tree_block_key(const struct extent_buffer *eb,
331 : struct btrfs_tree_block_info *item,
332 : struct btrfs_disk_key *key)
333 : {
334 0 : read_eb_member(eb, item, struct btrfs_tree_block_info, key, key);
335 : }
336 :
337 : static inline void btrfs_set_tree_block_key(const struct extent_buffer *eb,
338 : struct btrfs_tree_block_info *item,
339 : struct btrfs_disk_key *key)
340 : {
341 0 : write_eb_member(eb, item, struct btrfs_tree_block_info, key, key);
342 0 : }
343 :
344 0 : BTRFS_SETGET_FUNCS(extent_data_ref_root, struct btrfs_extent_data_ref, root, 64);
345 0 : BTRFS_SETGET_FUNCS(extent_data_ref_objectid, struct btrfs_extent_data_ref,
346 : objectid, 64);
347 0 : BTRFS_SETGET_FUNCS(extent_data_ref_offset, struct btrfs_extent_data_ref,
348 : offset, 64);
349 0 : BTRFS_SETGET_FUNCS(extent_data_ref_count, struct btrfs_extent_data_ref, count, 32);
350 :
351 0 : BTRFS_SETGET_FUNCS(shared_data_ref_count, struct btrfs_shared_data_ref, count, 32);
352 :
353 0 : BTRFS_SETGET_FUNCS(extent_inline_ref_type, struct btrfs_extent_inline_ref,
354 : type, 8);
355 0 : BTRFS_SETGET_FUNCS(extent_inline_ref_offset, struct btrfs_extent_inline_ref,
356 : offset, 64);
357 :
358 : static inline u32 btrfs_extent_inline_ref_size(int type)
359 : {
360 0 : if (type == BTRFS_TREE_BLOCK_REF_KEY ||
361 0 : type == BTRFS_SHARED_BLOCK_REF_KEY)
362 : return sizeof(struct btrfs_extent_inline_ref);
363 0 : if (type == BTRFS_SHARED_DATA_REF_KEY)
364 : return sizeof(struct btrfs_shared_data_ref) +
365 : sizeof(struct btrfs_extent_inline_ref);
366 0 : if (type == BTRFS_EXTENT_DATA_REF_KEY)
367 0 : return sizeof(struct btrfs_extent_data_ref) +
368 : offsetof(struct btrfs_extent_inline_ref, offset);
369 : return 0;
370 : }
371 :
372 : /* struct btrfs_node */
373 0 : BTRFS_SETGET_FUNCS(key_blockptr, struct btrfs_key_ptr, blockptr, 64);
374 0 : BTRFS_SETGET_FUNCS(key_generation, struct btrfs_key_ptr, generation, 64);
375 : BTRFS_SETGET_STACK_FUNCS(stack_key_blockptr, struct btrfs_key_ptr, blockptr, 64);
376 : BTRFS_SETGET_STACK_FUNCS(stack_key_generation, struct btrfs_key_ptr,
377 : generation, 64);
378 :
379 : static inline u64 btrfs_node_blockptr(const struct extent_buffer *eb, int nr)
380 : {
381 0 : unsigned long ptr;
382 :
383 0 : ptr = offsetof(struct btrfs_node, ptrs) +
384 0 : sizeof(struct btrfs_key_ptr) * nr;
385 0 : return btrfs_key_blockptr(eb, (struct btrfs_key_ptr *)ptr);
386 : }
387 :
388 : static inline void btrfs_set_node_blockptr(const struct extent_buffer *eb,
389 : int nr, u64 val)
390 : {
391 0 : unsigned long ptr;
392 :
393 0 : ptr = offsetof(struct btrfs_node, ptrs) +
394 0 : sizeof(struct btrfs_key_ptr) * nr;
395 0 : btrfs_set_key_blockptr(eb, (struct btrfs_key_ptr *)ptr, val);
396 : }
397 :
398 : static inline u64 btrfs_node_ptr_generation(const struct extent_buffer *eb, int nr)
399 : {
400 0 : unsigned long ptr;
401 :
402 0 : ptr = offsetof(struct btrfs_node, ptrs) +
403 0 : sizeof(struct btrfs_key_ptr) * nr;
404 0 : return btrfs_key_generation(eb, (struct btrfs_key_ptr *)ptr);
405 : }
406 :
407 : static inline void btrfs_set_node_ptr_generation(const struct extent_buffer *eb,
408 : int nr, u64 val)
409 : {
410 0 : unsigned long ptr;
411 :
412 0 : ptr = offsetof(struct btrfs_node, ptrs) +
413 0 : sizeof(struct btrfs_key_ptr) * nr;
414 0 : btrfs_set_key_generation(eb, (struct btrfs_key_ptr *)ptr, val);
415 0 : }
416 :
417 : static inline unsigned long btrfs_node_key_ptr_offset(const struct extent_buffer *eb, int nr)
418 : {
419 0 : return offsetof(struct btrfs_node, ptrs) +
420 0 : sizeof(struct btrfs_key_ptr) * nr;
421 : }
422 :
423 : void btrfs_node_key(const struct extent_buffer *eb,
424 : struct btrfs_disk_key *disk_key, int nr);
425 :
426 : static inline void btrfs_set_node_key(const struct extent_buffer *eb,
427 : struct btrfs_disk_key *disk_key, int nr)
428 : {
429 0 : unsigned long ptr;
430 :
431 0 : ptr = btrfs_node_key_ptr_offset(eb, nr);
432 0 : write_eb_member(eb, (struct btrfs_key_ptr *)ptr,
433 : struct btrfs_key_ptr, key, disk_key);
434 : }
435 :
436 : /* struct btrfs_item */
437 0 : BTRFS_SETGET_FUNCS(raw_item_offset, struct btrfs_item, offset, 32);
438 0 : BTRFS_SETGET_FUNCS(raw_item_size, struct btrfs_item, size, 32);
439 : BTRFS_SETGET_STACK_FUNCS(stack_item_offset, struct btrfs_item, offset, 32);
440 : BTRFS_SETGET_STACK_FUNCS(stack_item_size, struct btrfs_item, size, 32);
441 :
442 : static inline unsigned long btrfs_item_nr_offset(const struct extent_buffer *eb, int nr)
443 : {
444 0 : return offsetof(struct btrfs_leaf, items) +
445 0 : sizeof(struct btrfs_item) * nr;
446 : }
447 :
448 : static inline struct btrfs_item *btrfs_item_nr(const struct extent_buffer *eb, int nr)
449 : {
450 0 : return (struct btrfs_item *)btrfs_item_nr_offset(eb, nr);
451 : }
452 :
453 : #define BTRFS_ITEM_SETGET_FUNCS(member) \
454 : static inline u32 btrfs_item_##member(const struct extent_buffer *eb, int slot) \
455 : { \
456 : return btrfs_raw_item_##member(eb, btrfs_item_nr(eb, slot)); \
457 : } \
458 : static inline void btrfs_set_item_##member(const struct extent_buffer *eb, \
459 : int slot, u32 val) \
460 : { \
461 : btrfs_set_raw_item_##member(eb, btrfs_item_nr(eb, slot), val); \
462 : } \
463 : static inline u32 btrfs_token_item_##member(struct btrfs_map_token *token, \
464 : int slot) \
465 : { \
466 : struct btrfs_item *item = btrfs_item_nr(token->eb, slot); \
467 : return btrfs_token_raw_item_##member(token, item); \
468 : } \
469 : static inline void btrfs_set_token_item_##member(struct btrfs_map_token *token, \
470 : int slot, u32 val) \
471 : { \
472 : struct btrfs_item *item = btrfs_item_nr(token->eb, slot); \
473 : btrfs_set_token_raw_item_##member(token, item, val); \
474 : }
475 :
476 0 : BTRFS_ITEM_SETGET_FUNCS(offset)
477 0 : BTRFS_ITEM_SETGET_FUNCS(size);
478 :
479 0 : static inline u32 btrfs_item_data_end(const struct extent_buffer *eb, int nr)
480 : {
481 0 : return btrfs_item_offset(eb, nr) + btrfs_item_size(eb, nr);
482 : }
483 :
484 : static inline void btrfs_item_key(const struct extent_buffer *eb,
485 : struct btrfs_disk_key *disk_key, int nr)
486 : {
487 0 : struct btrfs_item *item = btrfs_item_nr(eb, nr);
488 :
489 0 : read_eb_member(eb, item, struct btrfs_item, key, disk_key);
490 0 : }
491 :
492 : static inline void btrfs_set_item_key(struct extent_buffer *eb,
493 : struct btrfs_disk_key *disk_key, int nr)
494 : {
495 0 : struct btrfs_item *item = btrfs_item_nr(eb, nr);
496 :
497 0 : write_eb_member(eb, item, struct btrfs_item, key, disk_key);
498 : }
499 :
500 0 : BTRFS_SETGET_FUNCS(dir_log_end, struct btrfs_dir_log_item, end, 64);
501 :
502 : /* struct btrfs_root_ref */
503 0 : BTRFS_SETGET_FUNCS(root_ref_dirid, struct btrfs_root_ref, dirid, 64);
504 0 : BTRFS_SETGET_FUNCS(root_ref_sequence, struct btrfs_root_ref, sequence, 64);
505 0 : BTRFS_SETGET_FUNCS(root_ref_name_len, struct btrfs_root_ref, name_len, 16);
506 : BTRFS_SETGET_STACK_FUNCS(stack_root_ref_dirid, struct btrfs_root_ref, dirid, 64);
507 : BTRFS_SETGET_STACK_FUNCS(stack_root_ref_sequence, struct btrfs_root_ref, sequence, 64);
508 : BTRFS_SETGET_STACK_FUNCS(stack_root_ref_name_len, struct btrfs_root_ref, name_len, 16);
509 :
510 : /* struct btrfs_dir_item */
511 0 : BTRFS_SETGET_FUNCS(dir_data_len, struct btrfs_dir_item, data_len, 16);
512 0 : BTRFS_SETGET_FUNCS(dir_flags, struct btrfs_dir_item, type, 8);
513 0 : BTRFS_SETGET_FUNCS(dir_name_len, struct btrfs_dir_item, name_len, 16);
514 0 : BTRFS_SETGET_FUNCS(dir_transid, struct btrfs_dir_item, transid, 64);
515 0 : BTRFS_SETGET_STACK_FUNCS(stack_dir_flags, struct btrfs_dir_item, type, 8);
516 0 : BTRFS_SETGET_STACK_FUNCS(stack_dir_data_len, struct btrfs_dir_item, data_len, 16);
517 0 : BTRFS_SETGET_STACK_FUNCS(stack_dir_name_len, struct btrfs_dir_item, name_len, 16);
518 0 : BTRFS_SETGET_STACK_FUNCS(stack_dir_transid, struct btrfs_dir_item, transid, 64);
519 :
520 : static inline u8 btrfs_dir_ftype(const struct extent_buffer *eb,
521 : const struct btrfs_dir_item *item)
522 : {
523 0 : return btrfs_dir_flags_to_ftype(btrfs_dir_flags(eb, item));
524 : }
525 :
526 : static inline u8 btrfs_stack_dir_ftype(const struct btrfs_dir_item *item)
527 : {
528 0 : return btrfs_dir_flags_to_ftype(btrfs_stack_dir_flags(item));
529 : }
530 :
531 : static inline void btrfs_dir_item_key(const struct extent_buffer *eb,
532 : const struct btrfs_dir_item *item,
533 : struct btrfs_disk_key *key)
534 : {
535 0 : read_eb_member(eb, item, struct btrfs_dir_item, location, key);
536 : }
537 :
538 : static inline void btrfs_set_dir_item_key(struct extent_buffer *eb,
539 : struct btrfs_dir_item *item,
540 : const struct btrfs_disk_key *key)
541 : {
542 0 : write_eb_member(eb, item, struct btrfs_dir_item, location, key);
543 : }
544 :
545 0 : BTRFS_SETGET_FUNCS(free_space_entries, struct btrfs_free_space_header,
546 : num_entries, 64);
547 0 : BTRFS_SETGET_FUNCS(free_space_bitmaps, struct btrfs_free_space_header,
548 : num_bitmaps, 64);
549 0 : BTRFS_SETGET_FUNCS(free_space_generation, struct btrfs_free_space_header,
550 : generation, 64);
551 :
552 : static inline void btrfs_free_space_key(const struct extent_buffer *eb,
553 : const struct btrfs_free_space_header *h,
554 : struct btrfs_disk_key *key)
555 : {
556 0 : read_eb_member(eb, h, struct btrfs_free_space_header, location, key);
557 : }
558 :
559 : static inline void btrfs_set_free_space_key(struct extent_buffer *eb,
560 : struct btrfs_free_space_header *h,
561 : const struct btrfs_disk_key *key)
562 : {
563 0 : write_eb_member(eb, h, struct btrfs_free_space_header, location, key);
564 : }
565 :
566 : /* struct btrfs_disk_key */
567 0 : BTRFS_SETGET_STACK_FUNCS(disk_key_objectid, struct btrfs_disk_key, objectid, 64);
568 0 : BTRFS_SETGET_STACK_FUNCS(disk_key_offset, struct btrfs_disk_key, offset, 64);
569 0 : BTRFS_SETGET_STACK_FUNCS(disk_key_type, struct btrfs_disk_key, type, 8);
570 :
571 : #ifdef __LITTLE_ENDIAN
572 :
573 : /*
574 : * Optimized helpers for little-endian architectures where CPU and on-disk
575 : * structures have the same endianness and we can skip conversions.
576 : */
577 :
578 0 : static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu_key,
579 : const struct btrfs_disk_key *disk_key)
580 : {
581 0 : memcpy(cpu_key, disk_key, sizeof(struct btrfs_key));
582 0 : }
583 :
584 0 : static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk_key,
585 : const struct btrfs_key *cpu_key)
586 : {
587 0 : memcpy(disk_key, cpu_key, sizeof(struct btrfs_key));
588 0 : }
589 :
590 : static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
591 : struct btrfs_key *cpu_key, int nr)
592 : {
593 0 : struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
594 :
595 0 : btrfs_node_key(eb, disk_key, nr);
596 0 : }
597 :
598 : static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
599 : struct btrfs_key *cpu_key, int nr)
600 : {
601 0 : struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
602 :
603 0 : btrfs_item_key(eb, disk_key, nr);
604 0 : }
605 :
606 : static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
607 : const struct btrfs_dir_item *item,
608 : struct btrfs_key *cpu_key)
609 : {
610 0 : struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key;
611 :
612 0 : btrfs_dir_item_key(eb, item, disk_key);
613 : }
614 :
615 : #else
616 :
617 : static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu,
618 : const struct btrfs_disk_key *disk)
619 : {
620 : cpu->offset = le64_to_cpu(disk->offset);
621 : cpu->type = disk->type;
622 : cpu->objectid = le64_to_cpu(disk->objectid);
623 : }
624 :
625 : static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk,
626 : const struct btrfs_key *cpu)
627 : {
628 : disk->offset = cpu_to_le64(cpu->offset);
629 : disk->type = cpu->type;
630 : disk->objectid = cpu_to_le64(cpu->objectid);
631 : }
632 :
633 : static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
634 : struct btrfs_key *key, int nr)
635 : {
636 : struct btrfs_disk_key disk_key;
637 :
638 : btrfs_node_key(eb, &disk_key, nr);
639 : btrfs_disk_key_to_cpu(key, &disk_key);
640 : }
641 :
642 : static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
643 : struct btrfs_key *key, int nr)
644 : {
645 : struct btrfs_disk_key disk_key;
646 :
647 : btrfs_item_key(eb, &disk_key, nr);
648 : btrfs_disk_key_to_cpu(key, &disk_key);
649 : }
650 :
651 : static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
652 : const struct btrfs_dir_item *item,
653 : struct btrfs_key *key)
654 : {
655 : struct btrfs_disk_key disk_key;
656 :
657 : btrfs_dir_item_key(eb, item, &disk_key);
658 : btrfs_disk_key_to_cpu(key, &disk_key);
659 : }
660 :
661 : #endif
662 :
663 : /* struct btrfs_header */
664 0 : BTRFS_SETGET_HEADER_FUNCS(header_bytenr, struct btrfs_header, bytenr, 64);
665 0 : BTRFS_SETGET_HEADER_FUNCS(header_generation, struct btrfs_header, generation, 64);
666 0 : BTRFS_SETGET_HEADER_FUNCS(header_owner, struct btrfs_header, owner, 64);
667 0 : BTRFS_SETGET_HEADER_FUNCS(header_nritems, struct btrfs_header, nritems, 32);
668 0 : BTRFS_SETGET_HEADER_FUNCS(header_flags, struct btrfs_header, flags, 64);
669 0 : BTRFS_SETGET_HEADER_FUNCS(header_level, struct btrfs_header, level, 8);
670 0 : BTRFS_SETGET_STACK_FUNCS(stack_header_generation, struct btrfs_header,
671 : generation, 64);
672 : BTRFS_SETGET_STACK_FUNCS(stack_header_owner, struct btrfs_header, owner, 64);
673 : BTRFS_SETGET_STACK_FUNCS(stack_header_nritems, struct btrfs_header, nritems, 32);
674 0 : BTRFS_SETGET_STACK_FUNCS(stack_header_bytenr, struct btrfs_header, bytenr, 64);
675 :
676 : static inline int btrfs_header_flag(const struct extent_buffer *eb, u64 flag)
677 : {
678 0 : return (btrfs_header_flags(eb) & flag) == flag;
679 : }
680 :
681 0 : static inline void btrfs_set_header_flag(struct extent_buffer *eb, u64 flag)
682 : {
683 0 : u64 flags = btrfs_header_flags(eb);
684 :
685 0 : btrfs_set_header_flags(eb, flags | flag);
686 0 : }
687 :
688 0 : static inline void btrfs_clear_header_flag(struct extent_buffer *eb, u64 flag)
689 : {
690 0 : u64 flags = btrfs_header_flags(eb);
691 :
692 0 : btrfs_set_header_flags(eb, flags & ~flag);
693 0 : }
694 :
695 : static inline int btrfs_header_backref_rev(const struct extent_buffer *eb)
696 : {
697 0 : u64 flags = btrfs_header_flags(eb);
698 :
699 0 : return flags >> BTRFS_BACKREF_REV_SHIFT;
700 : }
701 :
702 0 : static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb, int rev)
703 : {
704 0 : u64 flags = btrfs_header_flags(eb);
705 :
706 0 : flags &= ~BTRFS_BACKREF_REV_MASK;
707 0 : flags |= (u64)rev << BTRFS_BACKREF_REV_SHIFT;
708 0 : btrfs_set_header_flags(eb, flags);
709 0 : }
710 :
711 : static inline int btrfs_is_leaf(const struct extent_buffer *eb)
712 : {
713 0 : return btrfs_header_level(eb) == 0;
714 : }
715 :
716 : /* struct btrfs_root_item */
717 : BTRFS_SETGET_FUNCS(disk_root_generation, struct btrfs_root_item, generation, 64);
718 0 : BTRFS_SETGET_FUNCS(disk_root_refs, struct btrfs_root_item, refs, 32);
719 0 : BTRFS_SETGET_FUNCS(disk_root_bytenr, struct btrfs_root_item, bytenr, 64);
720 : BTRFS_SETGET_FUNCS(disk_root_level, struct btrfs_root_item, level, 8);
721 :
722 0 : BTRFS_SETGET_STACK_FUNCS(root_generation, struct btrfs_root_item, generation, 64);
723 0 : BTRFS_SETGET_STACK_FUNCS(root_bytenr, struct btrfs_root_item, bytenr, 64);
724 0 : BTRFS_SETGET_STACK_FUNCS(root_drop_level, struct btrfs_root_item, drop_level, 8);
725 0 : BTRFS_SETGET_STACK_FUNCS(root_level, struct btrfs_root_item, level, 8);
726 0 : BTRFS_SETGET_STACK_FUNCS(root_dirid, struct btrfs_root_item, root_dirid, 64);
727 0 : BTRFS_SETGET_STACK_FUNCS(root_refs, struct btrfs_root_item, refs, 32);
728 0 : BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 64);
729 0 : BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64);
730 0 : BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64);
731 0 : BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
732 : last_snapshot, 64);
733 0 : BTRFS_SETGET_STACK_FUNCS(root_generation_v2, struct btrfs_root_item,
734 : generation_v2, 64);
735 0 : BTRFS_SETGET_STACK_FUNCS(root_ctransid, struct btrfs_root_item, ctransid, 64);
736 0 : BTRFS_SETGET_STACK_FUNCS(root_otransid, struct btrfs_root_item, otransid, 64);
737 0 : BTRFS_SETGET_STACK_FUNCS(root_stransid, struct btrfs_root_item, stransid, 64);
738 0 : BTRFS_SETGET_STACK_FUNCS(root_rtransid, struct btrfs_root_item, rtransid, 64);
739 :
740 : /* struct btrfs_root_backup */
741 0 : BTRFS_SETGET_STACK_FUNCS(backup_tree_root, struct btrfs_root_backup,
742 : tree_root, 64);
743 0 : BTRFS_SETGET_STACK_FUNCS(backup_tree_root_gen, struct btrfs_root_backup,
744 : tree_root_gen, 64);
745 0 : BTRFS_SETGET_STACK_FUNCS(backup_tree_root_level, struct btrfs_root_backup,
746 : tree_root_level, 8);
747 :
748 0 : BTRFS_SETGET_STACK_FUNCS(backup_chunk_root, struct btrfs_root_backup,
749 : chunk_root, 64);
750 0 : BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_gen, struct btrfs_root_backup,
751 : chunk_root_gen, 64);
752 0 : BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_level, struct btrfs_root_backup,
753 : chunk_root_level, 8);
754 :
755 0 : BTRFS_SETGET_STACK_FUNCS(backup_extent_root, struct btrfs_root_backup,
756 : extent_root, 64);
757 0 : BTRFS_SETGET_STACK_FUNCS(backup_extent_root_gen, struct btrfs_root_backup,
758 : extent_root_gen, 64);
759 0 : BTRFS_SETGET_STACK_FUNCS(backup_extent_root_level, struct btrfs_root_backup,
760 : extent_root_level, 8);
761 :
762 0 : BTRFS_SETGET_STACK_FUNCS(backup_fs_root, struct btrfs_root_backup,
763 : fs_root, 64);
764 0 : BTRFS_SETGET_STACK_FUNCS(backup_fs_root_gen, struct btrfs_root_backup,
765 : fs_root_gen, 64);
766 0 : BTRFS_SETGET_STACK_FUNCS(backup_fs_root_level, struct btrfs_root_backup,
767 : fs_root_level, 8);
768 :
769 0 : BTRFS_SETGET_STACK_FUNCS(backup_dev_root, struct btrfs_root_backup,
770 : dev_root, 64);
771 0 : BTRFS_SETGET_STACK_FUNCS(backup_dev_root_gen, struct btrfs_root_backup,
772 : dev_root_gen, 64);
773 0 : BTRFS_SETGET_STACK_FUNCS(backup_dev_root_level, struct btrfs_root_backup,
774 : dev_root_level, 8);
775 :
776 0 : BTRFS_SETGET_STACK_FUNCS(backup_csum_root, struct btrfs_root_backup,
777 : csum_root, 64);
778 0 : BTRFS_SETGET_STACK_FUNCS(backup_csum_root_gen, struct btrfs_root_backup,
779 : csum_root_gen, 64);
780 0 : BTRFS_SETGET_STACK_FUNCS(backup_csum_root_level, struct btrfs_root_backup,
781 : csum_root_level, 8);
782 0 : BTRFS_SETGET_STACK_FUNCS(backup_total_bytes, struct btrfs_root_backup,
783 : total_bytes, 64);
784 0 : BTRFS_SETGET_STACK_FUNCS(backup_bytes_used, struct btrfs_root_backup,
785 : bytes_used, 64);
786 0 : BTRFS_SETGET_STACK_FUNCS(backup_num_devices, struct btrfs_root_backup,
787 : num_devices, 64);
788 :
789 : /* struct btrfs_balance_item */
790 0 : BTRFS_SETGET_FUNCS(balance_flags, struct btrfs_balance_item, flags, 64);
791 :
792 : static inline void btrfs_balance_data(const struct extent_buffer *eb,
793 : const struct btrfs_balance_item *bi,
794 : struct btrfs_disk_balance_args *ba)
795 : {
796 0 : read_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
797 : }
798 :
799 : static inline void btrfs_set_balance_data(struct extent_buffer *eb,
800 : struct btrfs_balance_item *bi,
801 : const struct btrfs_disk_balance_args *ba)
802 : {
803 0 : write_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
804 : }
805 :
806 : static inline void btrfs_balance_meta(const struct extent_buffer *eb,
807 : const struct btrfs_balance_item *bi,
808 : struct btrfs_disk_balance_args *ba)
809 : {
810 0 : read_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
811 : }
812 :
813 : static inline void btrfs_set_balance_meta(struct extent_buffer *eb,
814 : struct btrfs_balance_item *bi,
815 : const struct btrfs_disk_balance_args *ba)
816 : {
817 0 : write_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
818 : }
819 :
820 : static inline void btrfs_balance_sys(const struct extent_buffer *eb,
821 : const struct btrfs_balance_item *bi,
822 : struct btrfs_disk_balance_args *ba)
823 : {
824 0 : read_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
825 : }
826 :
827 : static inline void btrfs_set_balance_sys(struct extent_buffer *eb,
828 : struct btrfs_balance_item *bi,
829 : const struct btrfs_disk_balance_args *ba)
830 : {
831 0 : write_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
832 : }
833 :
834 0 : static inline void btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu,
835 : const struct btrfs_disk_balance_args *disk)
836 : {
837 0 : memset(cpu, 0, sizeof(*cpu));
838 :
839 0 : cpu->profiles = le64_to_cpu(disk->profiles);
840 0 : cpu->usage = le64_to_cpu(disk->usage);
841 0 : cpu->devid = le64_to_cpu(disk->devid);
842 0 : cpu->pstart = le64_to_cpu(disk->pstart);
843 0 : cpu->pend = le64_to_cpu(disk->pend);
844 0 : cpu->vstart = le64_to_cpu(disk->vstart);
845 0 : cpu->vend = le64_to_cpu(disk->vend);
846 0 : cpu->target = le64_to_cpu(disk->target);
847 0 : cpu->flags = le64_to_cpu(disk->flags);
848 0 : cpu->limit = le64_to_cpu(disk->limit);
849 0 : cpu->stripes_min = le32_to_cpu(disk->stripes_min);
850 0 : cpu->stripes_max = le32_to_cpu(disk->stripes_max);
851 0 : }
852 :
853 0 : static inline void btrfs_cpu_balance_args_to_disk(
854 : struct btrfs_disk_balance_args *disk,
855 : const struct btrfs_balance_args *cpu)
856 : {
857 0 : memset(disk, 0, sizeof(*disk));
858 :
859 0 : disk->profiles = cpu_to_le64(cpu->profiles);
860 0 : disk->usage = cpu_to_le64(cpu->usage);
861 0 : disk->devid = cpu_to_le64(cpu->devid);
862 0 : disk->pstart = cpu_to_le64(cpu->pstart);
863 0 : disk->pend = cpu_to_le64(cpu->pend);
864 0 : disk->vstart = cpu_to_le64(cpu->vstart);
865 0 : disk->vend = cpu_to_le64(cpu->vend);
866 0 : disk->target = cpu_to_le64(cpu->target);
867 0 : disk->flags = cpu_to_le64(cpu->flags);
868 0 : disk->limit = cpu_to_le64(cpu->limit);
869 0 : disk->stripes_min = cpu_to_le32(cpu->stripes_min);
870 0 : disk->stripes_max = cpu_to_le32(cpu->stripes_max);
871 0 : }
872 :
873 : /* struct btrfs_super_block */
874 4 : BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64);
875 4 : BTRFS_SETGET_STACK_FUNCS(super_flags, struct btrfs_super_block, flags, 64);
876 4 : BTRFS_SETGET_STACK_FUNCS(super_generation, struct btrfs_super_block,
877 : generation, 64);
878 0 : BTRFS_SETGET_STACK_FUNCS(super_root, struct btrfs_super_block, root, 64);
879 0 : BTRFS_SETGET_STACK_FUNCS(super_sys_array_size,
880 : struct btrfs_super_block, sys_chunk_array_size, 32);
881 0 : BTRFS_SETGET_STACK_FUNCS(super_chunk_root_generation,
882 : struct btrfs_super_block, chunk_root_generation, 64);
883 0 : BTRFS_SETGET_STACK_FUNCS(super_root_level, struct btrfs_super_block,
884 : root_level, 8);
885 0 : BTRFS_SETGET_STACK_FUNCS(super_chunk_root, struct btrfs_super_block,
886 : chunk_root, 64);
887 0 : BTRFS_SETGET_STACK_FUNCS(super_chunk_root_level, struct btrfs_super_block,
888 : chunk_root_level, 8);
889 0 : BTRFS_SETGET_STACK_FUNCS(super_log_root, struct btrfs_super_block, log_root, 64);
890 0 : BTRFS_SETGET_STACK_FUNCS(super_log_root_level, struct btrfs_super_block,
891 : log_root_level, 8);
892 0 : BTRFS_SETGET_STACK_FUNCS(super_total_bytes, struct btrfs_super_block,
893 : total_bytes, 64);
894 0 : BTRFS_SETGET_STACK_FUNCS(super_bytes_used, struct btrfs_super_block,
895 : bytes_used, 64);
896 0 : BTRFS_SETGET_STACK_FUNCS(super_sectorsize, struct btrfs_super_block,
897 : sectorsize, 32);
898 0 : BTRFS_SETGET_STACK_FUNCS(super_nodesize, struct btrfs_super_block,
899 : nodesize, 32);
900 0 : BTRFS_SETGET_STACK_FUNCS(super_stripesize, struct btrfs_super_block,
901 : stripesize, 32);
902 0 : BTRFS_SETGET_STACK_FUNCS(super_root_dir, struct btrfs_super_block,
903 : root_dir_objectid, 64);
904 4 : BTRFS_SETGET_STACK_FUNCS(super_num_devices, struct btrfs_super_block,
905 : num_devices, 64);
906 0 : BTRFS_SETGET_STACK_FUNCS(super_compat_flags, struct btrfs_super_block,
907 : compat_flags, 64);
908 0 : BTRFS_SETGET_STACK_FUNCS(super_compat_ro_flags, struct btrfs_super_block,
909 : compat_ro_flags, 64);
910 4 : BTRFS_SETGET_STACK_FUNCS(super_incompat_flags, struct btrfs_super_block,
911 : incompat_flags, 64);
912 0 : BTRFS_SETGET_STACK_FUNCS(super_csum_type, struct btrfs_super_block,
913 : csum_type, 16);
914 0 : BTRFS_SETGET_STACK_FUNCS(super_cache_generation, struct btrfs_super_block,
915 : cache_generation, 64);
916 4 : BTRFS_SETGET_STACK_FUNCS(super_magic, struct btrfs_super_block, magic, 64);
917 0 : BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block,
918 : uuid_tree_generation, 64);
919 : BTRFS_SETGET_STACK_FUNCS(super_nr_global_roots, struct btrfs_super_block,
920 : nr_global_roots, 64);
921 :
922 : /* struct btrfs_file_extent_item */
923 0 : BTRFS_SETGET_STACK_FUNCS(stack_file_extent_type, struct btrfs_file_extent_item,
924 : type, 8);
925 0 : BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_bytenr,
926 : struct btrfs_file_extent_item, disk_bytenr, 64);
927 0 : BTRFS_SETGET_STACK_FUNCS(stack_file_extent_offset,
928 : struct btrfs_file_extent_item, offset, 64);
929 0 : BTRFS_SETGET_STACK_FUNCS(stack_file_extent_generation,
930 : struct btrfs_file_extent_item, generation, 64);
931 0 : BTRFS_SETGET_STACK_FUNCS(stack_file_extent_num_bytes,
932 : struct btrfs_file_extent_item, num_bytes, 64);
933 0 : BTRFS_SETGET_STACK_FUNCS(stack_file_extent_ram_bytes,
934 : struct btrfs_file_extent_item, ram_bytes, 64);
935 0 : BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_num_bytes,
936 : struct btrfs_file_extent_item, disk_num_bytes, 64);
937 0 : BTRFS_SETGET_STACK_FUNCS(stack_file_extent_compression,
938 : struct btrfs_file_extent_item, compression, 8);
939 :
940 :
941 0 : BTRFS_SETGET_FUNCS(file_extent_type, struct btrfs_file_extent_item, type, 8);
942 0 : BTRFS_SETGET_FUNCS(file_extent_disk_bytenr, struct btrfs_file_extent_item,
943 : disk_bytenr, 64);
944 0 : BTRFS_SETGET_FUNCS(file_extent_generation, struct btrfs_file_extent_item,
945 : generation, 64);
946 0 : BTRFS_SETGET_FUNCS(file_extent_disk_num_bytes, struct btrfs_file_extent_item,
947 : disk_num_bytes, 64);
948 0 : BTRFS_SETGET_FUNCS(file_extent_offset, struct btrfs_file_extent_item,
949 : offset, 64);
950 0 : BTRFS_SETGET_FUNCS(file_extent_num_bytes, struct btrfs_file_extent_item,
951 : num_bytes, 64);
952 0 : BTRFS_SETGET_FUNCS(file_extent_ram_bytes, struct btrfs_file_extent_item,
953 : ram_bytes, 64);
954 0 : BTRFS_SETGET_FUNCS(file_extent_compression, struct btrfs_file_extent_item,
955 : compression, 8);
956 0 : BTRFS_SETGET_FUNCS(file_extent_encryption, struct btrfs_file_extent_item,
957 : encryption, 8);
958 0 : BTRFS_SETGET_FUNCS(file_extent_other_encoding, struct btrfs_file_extent_item,
959 : other_encoding, 16);
960 :
961 : /* btrfs_qgroup_status_item */
962 0 : BTRFS_SETGET_FUNCS(qgroup_status_generation, struct btrfs_qgroup_status_item,
963 : generation, 64);
964 0 : BTRFS_SETGET_FUNCS(qgroup_status_version, struct btrfs_qgroup_status_item,
965 : version, 64);
966 0 : BTRFS_SETGET_FUNCS(qgroup_status_flags, struct btrfs_qgroup_status_item,
967 : flags, 64);
968 0 : BTRFS_SETGET_FUNCS(qgroup_status_rescan, struct btrfs_qgroup_status_item,
969 : rescan, 64);
970 :
971 : /* btrfs_qgroup_info_item */
972 0 : BTRFS_SETGET_FUNCS(qgroup_info_generation, struct btrfs_qgroup_info_item,
973 : generation, 64);
974 0 : BTRFS_SETGET_FUNCS(qgroup_info_rfer, struct btrfs_qgroup_info_item, rfer, 64);
975 0 : BTRFS_SETGET_FUNCS(qgroup_info_rfer_cmpr, struct btrfs_qgroup_info_item,
976 : rfer_cmpr, 64);
977 0 : BTRFS_SETGET_FUNCS(qgroup_info_excl, struct btrfs_qgroup_info_item, excl, 64);
978 0 : BTRFS_SETGET_FUNCS(qgroup_info_excl_cmpr, struct btrfs_qgroup_info_item,
979 : excl_cmpr, 64);
980 :
981 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_generation,
982 : struct btrfs_qgroup_info_item, generation, 64);
983 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer, struct btrfs_qgroup_info_item,
984 : rfer, 64);
985 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer_cmpr,
986 : struct btrfs_qgroup_info_item, rfer_cmpr, 64);
987 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl, struct btrfs_qgroup_info_item,
988 : excl, 64);
989 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl_cmpr,
990 : struct btrfs_qgroup_info_item, excl_cmpr, 64);
991 :
992 : /* btrfs_qgroup_limit_item */
993 0 : BTRFS_SETGET_FUNCS(qgroup_limit_flags, struct btrfs_qgroup_limit_item, flags, 64);
994 0 : BTRFS_SETGET_FUNCS(qgroup_limit_max_rfer, struct btrfs_qgroup_limit_item,
995 : max_rfer, 64);
996 0 : BTRFS_SETGET_FUNCS(qgroup_limit_max_excl, struct btrfs_qgroup_limit_item,
997 : max_excl, 64);
998 0 : BTRFS_SETGET_FUNCS(qgroup_limit_rsv_rfer, struct btrfs_qgroup_limit_item,
999 : rsv_rfer, 64);
1000 0 : BTRFS_SETGET_FUNCS(qgroup_limit_rsv_excl, struct btrfs_qgroup_limit_item,
1001 : rsv_excl, 64);
1002 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_flags,
1003 : struct btrfs_qgroup_limit_item, flags, 64);
1004 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_rfer,
1005 : struct btrfs_qgroup_limit_item, max_rfer, 64);
1006 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_excl,
1007 : struct btrfs_qgroup_limit_item, max_excl, 64);
1008 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_rfer,
1009 : struct btrfs_qgroup_limit_item, rsv_rfer, 64);
1010 : BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_excl,
1011 : struct btrfs_qgroup_limit_item, rsv_excl, 64);
1012 :
1013 : /* btrfs_dev_replace_item */
1014 0 : BTRFS_SETGET_FUNCS(dev_replace_src_devid,
1015 : struct btrfs_dev_replace_item, src_devid, 64);
1016 0 : BTRFS_SETGET_FUNCS(dev_replace_cont_reading_from_srcdev_mode,
1017 : struct btrfs_dev_replace_item, cont_reading_from_srcdev_mode,
1018 : 64);
1019 0 : BTRFS_SETGET_FUNCS(dev_replace_replace_state, struct btrfs_dev_replace_item,
1020 : replace_state, 64);
1021 0 : BTRFS_SETGET_FUNCS(dev_replace_time_started, struct btrfs_dev_replace_item,
1022 : time_started, 64);
1023 0 : BTRFS_SETGET_FUNCS(dev_replace_time_stopped, struct btrfs_dev_replace_item,
1024 : time_stopped, 64);
1025 0 : BTRFS_SETGET_FUNCS(dev_replace_num_write_errors, struct btrfs_dev_replace_item,
1026 : num_write_errors, 64);
1027 0 : BTRFS_SETGET_FUNCS(dev_replace_num_uncorrectable_read_errors,
1028 : struct btrfs_dev_replace_item, num_uncorrectable_read_errors,
1029 : 64);
1030 0 : BTRFS_SETGET_FUNCS(dev_replace_cursor_left, struct btrfs_dev_replace_item,
1031 : cursor_left, 64);
1032 0 : BTRFS_SETGET_FUNCS(dev_replace_cursor_right, struct btrfs_dev_replace_item,
1033 : cursor_right, 64);
1034 :
1035 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_src_devid,
1036 : struct btrfs_dev_replace_item, src_devid, 64);
1037 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cont_reading_from_srcdev_mode,
1038 : struct btrfs_dev_replace_item,
1039 : cont_reading_from_srcdev_mode, 64);
1040 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_replace_state,
1041 : struct btrfs_dev_replace_item, replace_state, 64);
1042 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_started,
1043 : struct btrfs_dev_replace_item, time_started, 64);
1044 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_stopped,
1045 : struct btrfs_dev_replace_item, time_stopped, 64);
1046 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_write_errors,
1047 : struct btrfs_dev_replace_item, num_write_errors, 64);
1048 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_uncorrectable_read_errors,
1049 : struct btrfs_dev_replace_item,
1050 : num_uncorrectable_read_errors, 64);
1051 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_left,
1052 : struct btrfs_dev_replace_item, cursor_left, 64);
1053 : BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_right,
1054 : struct btrfs_dev_replace_item, cursor_right, 64);
1055 :
1056 : /* btrfs_verity_descriptor_item */
1057 : BTRFS_SETGET_FUNCS(verity_descriptor_encryption, struct btrfs_verity_descriptor_item,
1058 : encryption, 8);
1059 : BTRFS_SETGET_FUNCS(verity_descriptor_size, struct btrfs_verity_descriptor_item,
1060 : size, 64);
1061 : BTRFS_SETGET_STACK_FUNCS(stack_verity_descriptor_encryption,
1062 : struct btrfs_verity_descriptor_item, encryption, 8);
1063 : BTRFS_SETGET_STACK_FUNCS(stack_verity_descriptor_size,
1064 : struct btrfs_verity_descriptor_item, size, 64);
1065 :
1066 : /* Cast into the data area of the leaf. */
1067 : #define btrfs_item_ptr(leaf, slot, type) \
1068 : ((type *)(btrfs_item_nr_offset(leaf, 0) + btrfs_item_offset(leaf, slot)))
1069 :
1070 : #define btrfs_item_ptr_offset(leaf, slot) \
1071 : ((unsigned long)(btrfs_item_nr_offset(leaf, 0) + btrfs_item_offset(leaf, slot)))
1072 :
1073 : #endif
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