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ad1ac501 JB |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | ||
3 | #ifndef BTRFS_ACCESSORS_H | |
4 | #define BTRFS_ACCESSORS_H | |
5 | ||
98efb4eb DS |
6 | #include <linux/stddef.h> |
7 | ||
ad1ac501 JB |
8 | struct btrfs_map_token { |
9 | struct extent_buffer *eb; | |
10 | char *kaddr; | |
11 | unsigned long offset; | |
12 | }; | |
13 | ||
14 | void btrfs_init_map_token(struct btrfs_map_token *token, struct extent_buffer *eb); | |
15 | ||
07e81dc9 JB |
16 | /* |
17 | * Some macros to generate set/get functions for the struct fields. This | |
18 | * assumes there is a lefoo_to_cpu for every type, so lets make a simple one | |
19 | * for u8: | |
20 | */ | |
21 | #define le8_to_cpu(v) (v) | |
22 | #define cpu_to_le8(v) (v) | |
23 | #define __le8 u8 | |
24 | ||
25 | static inline u8 get_unaligned_le8(const void *p) | |
26 | { | |
27 | return *(u8 *)p; | |
28 | } | |
29 | ||
30 | static inline void put_unaligned_le8(u8 val, void *p) | |
31 | { | |
32 | *(u8 *)p = val; | |
33 | } | |
34 | ||
35 | #define read_eb_member(eb, ptr, type, member, result) (\ | |
36 | read_extent_buffer(eb, (char *)(result), \ | |
37 | ((unsigned long)(ptr)) + \ | |
38 | offsetof(type, member), \ | |
98efb4eb | 39 | sizeof_field(type, member))) |
07e81dc9 JB |
40 | |
41 | #define write_eb_member(eb, ptr, type, member, result) (\ | |
42 | write_extent_buffer(eb, (char *)(result), \ | |
43 | ((unsigned long)(ptr)) + \ | |
44 | offsetof(type, member), \ | |
98efb4eb | 45 | sizeof_field(type, member))) |
07e81dc9 JB |
46 | |
47 | #define DECLARE_BTRFS_SETGET_BITS(bits) \ | |
48 | u##bits btrfs_get_token_##bits(struct btrfs_map_token *token, \ | |
49 | const void *ptr, unsigned long off); \ | |
50 | void btrfs_set_token_##bits(struct btrfs_map_token *token, \ | |
51 | const void *ptr, unsigned long off, \ | |
52 | u##bits val); \ | |
53 | u##bits btrfs_get_##bits(const struct extent_buffer *eb, \ | |
54 | const void *ptr, unsigned long off); \ | |
55 | void btrfs_set_##bits(const struct extent_buffer *eb, void *ptr, \ | |
56 | unsigned long off, u##bits val); | |
57 | ||
58 | DECLARE_BTRFS_SETGET_BITS(8) | |
59 | DECLARE_BTRFS_SETGET_BITS(16) | |
60 | DECLARE_BTRFS_SETGET_BITS(32) | |
61 | DECLARE_BTRFS_SETGET_BITS(64) | |
62 | ||
63 | #define BTRFS_SETGET_FUNCS(name, type, member, bits) \ | |
64 | static inline u##bits btrfs_##name(const struct extent_buffer *eb, \ | |
65 | const type *s) \ | |
66 | { \ | |
98efb4eb | 67 | static_assert(sizeof(u##bits) == sizeof_field(type, member)); \ |
07e81dc9 JB |
68 | return btrfs_get_##bits(eb, s, offsetof(type, member)); \ |
69 | } \ | |
70 | static inline void btrfs_set_##name(const struct extent_buffer *eb, type *s, \ | |
71 | u##bits val) \ | |
72 | { \ | |
98efb4eb | 73 | static_assert(sizeof(u##bits) == sizeof_field(type, member)); \ |
07e81dc9 JB |
74 | btrfs_set_##bits(eb, s, offsetof(type, member), val); \ |
75 | } \ | |
76 | static inline u##bits btrfs_token_##name(struct btrfs_map_token *token, \ | |
77 | const type *s) \ | |
78 | { \ | |
98efb4eb | 79 | static_assert(sizeof(u##bits) == sizeof_field(type, member)); \ |
07e81dc9 JB |
80 | return btrfs_get_token_##bits(token, s, offsetof(type, member));\ |
81 | } \ | |
82 | static inline void btrfs_set_token_##name(struct btrfs_map_token *token,\ | |
83 | type *s, u##bits val) \ | |
84 | { \ | |
98efb4eb | 85 | static_assert(sizeof(u##bits) == sizeof_field(type, member)); \ |
07e81dc9 JB |
86 | btrfs_set_token_##bits(token, s, offsetof(type, member), val); \ |
87 | } | |
88 | ||
89 | #define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \ | |
90 | static inline u##bits btrfs_##name(const struct extent_buffer *eb) \ | |
91 | { \ | |
92 | const type *p = page_address(eb->pages[0]) + \ | |
93 | offset_in_page(eb->start); \ | |
94 | return get_unaligned_le##bits(&p->member); \ | |
95 | } \ | |
96 | static inline void btrfs_set_##name(const struct extent_buffer *eb, \ | |
97 | u##bits val) \ | |
98 | { \ | |
99 | type *p = page_address(eb->pages[0]) + offset_in_page(eb->start); \ | |
100 | put_unaligned_le##bits(val, &p->member); \ | |
101 | } | |
102 | ||
103 | #define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits) \ | |
104 | static inline u##bits btrfs_##name(const type *s) \ | |
105 | { \ | |
106 | return get_unaligned_le##bits(&s->member); \ | |
107 | } \ | |
108 | static inline void btrfs_set_##name(type *s, u##bits val) \ | |
109 | { \ | |
110 | put_unaligned_le##bits(val, &s->member); \ | |
111 | } | |
112 | ||
113 | static inline u64 btrfs_device_total_bytes(const struct extent_buffer *eb, | |
114 | struct btrfs_dev_item *s) | |
115 | { | |
98efb4eb DS |
116 | static_assert(sizeof(u64) == sizeof_field(struct btrfs_dev_item, total_bytes)); |
117 | return btrfs_get_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes)); | |
07e81dc9 JB |
118 | } |
119 | static inline void btrfs_set_device_total_bytes(const struct extent_buffer *eb, | |
120 | struct btrfs_dev_item *s, | |
121 | u64 val) | |
122 | { | |
98efb4eb | 123 | static_assert(sizeof(u64) == sizeof_field(struct btrfs_dev_item, total_bytes)); |
07e81dc9 JB |
124 | WARN_ON(!IS_ALIGNED(val, eb->fs_info->sectorsize)); |
125 | btrfs_set_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes), val); | |
126 | } | |
127 | ||
128 | BTRFS_SETGET_FUNCS(device_type, struct btrfs_dev_item, type, 64); | |
129 | BTRFS_SETGET_FUNCS(device_bytes_used, struct btrfs_dev_item, bytes_used, 64); | |
130 | BTRFS_SETGET_FUNCS(device_io_align, struct btrfs_dev_item, io_align, 32); | |
131 | BTRFS_SETGET_FUNCS(device_io_width, struct btrfs_dev_item, io_width, 32); | |
132 | BTRFS_SETGET_FUNCS(device_start_offset, struct btrfs_dev_item, start_offset, 64); | |
133 | BTRFS_SETGET_FUNCS(device_sector_size, struct btrfs_dev_item, sector_size, 32); | |
134 | BTRFS_SETGET_FUNCS(device_id, struct btrfs_dev_item, devid, 64); | |
135 | BTRFS_SETGET_FUNCS(device_group, struct btrfs_dev_item, dev_group, 32); | |
136 | BTRFS_SETGET_FUNCS(device_seek_speed, struct btrfs_dev_item, seek_speed, 8); | |
137 | BTRFS_SETGET_FUNCS(device_bandwidth, struct btrfs_dev_item, bandwidth, 8); | |
138 | BTRFS_SETGET_FUNCS(device_generation, struct btrfs_dev_item, generation, 64); | |
139 | ||
140 | BTRFS_SETGET_STACK_FUNCS(stack_device_type, struct btrfs_dev_item, type, 64); | |
141 | BTRFS_SETGET_STACK_FUNCS(stack_device_total_bytes, struct btrfs_dev_item, | |
142 | total_bytes, 64); | |
143 | BTRFS_SETGET_STACK_FUNCS(stack_device_bytes_used, struct btrfs_dev_item, | |
144 | bytes_used, 64); | |
145 | BTRFS_SETGET_STACK_FUNCS(stack_device_io_align, struct btrfs_dev_item, | |
146 | io_align, 32); | |
147 | BTRFS_SETGET_STACK_FUNCS(stack_device_io_width, struct btrfs_dev_item, | |
148 | io_width, 32); | |
149 | BTRFS_SETGET_STACK_FUNCS(stack_device_sector_size, struct btrfs_dev_item, | |
150 | sector_size, 32); | |
151 | BTRFS_SETGET_STACK_FUNCS(stack_device_id, struct btrfs_dev_item, devid, 64); | |
152 | BTRFS_SETGET_STACK_FUNCS(stack_device_group, struct btrfs_dev_item, dev_group, 32); | |
153 | BTRFS_SETGET_STACK_FUNCS(stack_device_seek_speed, struct btrfs_dev_item, | |
154 | seek_speed, 8); | |
155 | BTRFS_SETGET_STACK_FUNCS(stack_device_bandwidth, struct btrfs_dev_item, | |
156 | bandwidth, 8); | |
157 | BTRFS_SETGET_STACK_FUNCS(stack_device_generation, struct btrfs_dev_item, | |
158 | generation, 64); | |
159 | ||
160 | static inline unsigned long btrfs_device_uuid(struct btrfs_dev_item *d) | |
161 | { | |
162 | return (unsigned long)d + offsetof(struct btrfs_dev_item, uuid); | |
163 | } | |
164 | ||
165 | static inline unsigned long btrfs_device_fsid(struct btrfs_dev_item *d) | |
166 | { | |
167 | return (unsigned long)d + offsetof(struct btrfs_dev_item, fsid); | |
168 | } | |
169 | ||
170 | BTRFS_SETGET_FUNCS(chunk_length, struct btrfs_chunk, length, 64); | |
171 | BTRFS_SETGET_FUNCS(chunk_owner, struct btrfs_chunk, owner, 64); | |
172 | BTRFS_SETGET_FUNCS(chunk_stripe_len, struct btrfs_chunk, stripe_len, 64); | |
173 | BTRFS_SETGET_FUNCS(chunk_io_align, struct btrfs_chunk, io_align, 32); | |
174 | BTRFS_SETGET_FUNCS(chunk_io_width, struct btrfs_chunk, io_width, 32); | |
175 | BTRFS_SETGET_FUNCS(chunk_sector_size, struct btrfs_chunk, sector_size, 32); | |
176 | BTRFS_SETGET_FUNCS(chunk_type, struct btrfs_chunk, type, 64); | |
177 | BTRFS_SETGET_FUNCS(chunk_num_stripes, struct btrfs_chunk, num_stripes, 16); | |
178 | BTRFS_SETGET_FUNCS(chunk_sub_stripes, struct btrfs_chunk, sub_stripes, 16); | |
179 | BTRFS_SETGET_FUNCS(stripe_devid, struct btrfs_stripe, devid, 64); | |
180 | BTRFS_SETGET_FUNCS(stripe_offset, struct btrfs_stripe, offset, 64); | |
181 | ||
182 | static inline char *btrfs_stripe_dev_uuid(struct btrfs_stripe *s) | |
183 | { | |
184 | return (char *)s + offsetof(struct btrfs_stripe, dev_uuid); | |
185 | } | |
186 | ||
187 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_length, struct btrfs_chunk, length, 64); | |
188 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_owner, struct btrfs_chunk, owner, 64); | |
189 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_stripe_len, struct btrfs_chunk, | |
190 | stripe_len, 64); | |
191 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_align, struct btrfs_chunk, io_align, 32); | |
192 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_io_width, struct btrfs_chunk, io_width, 32); | |
193 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_sector_size, struct btrfs_chunk, | |
194 | sector_size, 32); | |
195 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_type, struct btrfs_chunk, type, 64); | |
196 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_num_stripes, struct btrfs_chunk, | |
197 | num_stripes, 16); | |
198 | BTRFS_SETGET_STACK_FUNCS(stack_chunk_sub_stripes, struct btrfs_chunk, | |
199 | sub_stripes, 16); | |
200 | BTRFS_SETGET_STACK_FUNCS(stack_stripe_devid, struct btrfs_stripe, devid, 64); | |
201 | BTRFS_SETGET_STACK_FUNCS(stack_stripe_offset, struct btrfs_stripe, offset, 64); | |
202 | ||
203 | static inline struct btrfs_stripe *btrfs_stripe_nr(struct btrfs_chunk *c, int nr) | |
204 | { | |
205 | unsigned long offset = (unsigned long)c; | |
206 | ||
207 | offset += offsetof(struct btrfs_chunk, stripe); | |
208 | offset += nr * sizeof(struct btrfs_stripe); | |
209 | return (struct btrfs_stripe *)offset; | |
210 | } | |
211 | ||
212 | static inline char *btrfs_stripe_dev_uuid_nr(struct btrfs_chunk *c, int nr) | |
213 | { | |
214 | return btrfs_stripe_dev_uuid(btrfs_stripe_nr(c, nr)); | |
215 | } | |
216 | ||
217 | static inline u64 btrfs_stripe_offset_nr(const struct extent_buffer *eb, | |
218 | struct btrfs_chunk *c, int nr) | |
219 | { | |
220 | return btrfs_stripe_offset(eb, btrfs_stripe_nr(c, nr)); | |
221 | } | |
222 | ||
054056bd JB |
223 | static inline void btrfs_set_stripe_offset_nr(struct extent_buffer *eb, |
224 | struct btrfs_chunk *c, int nr, | |
225 | u64 val) | |
226 | { | |
227 | btrfs_set_stripe_offset(eb, btrfs_stripe_nr(c, nr), val); | |
228 | } | |
229 | ||
07e81dc9 JB |
230 | static inline u64 btrfs_stripe_devid_nr(const struct extent_buffer *eb, |
231 | struct btrfs_chunk *c, int nr) | |
232 | { | |
233 | return btrfs_stripe_devid(eb, btrfs_stripe_nr(c, nr)); | |
234 | } | |
235 | ||
054056bd JB |
236 | static inline void btrfs_set_stripe_devid_nr(struct extent_buffer *eb, |
237 | struct btrfs_chunk *c, int nr, | |
238 | u64 val) | |
239 | { | |
240 | btrfs_set_stripe_devid(eb, btrfs_stripe_nr(c, nr), val); | |
241 | } | |
242 | ||
07e81dc9 JB |
243 | /* struct btrfs_block_group_item */ |
244 | BTRFS_SETGET_STACK_FUNCS(stack_block_group_used, struct btrfs_block_group_item, | |
245 | used, 64); | |
246 | BTRFS_SETGET_FUNCS(block_group_used, struct btrfs_block_group_item, used, 64); | |
247 | BTRFS_SETGET_STACK_FUNCS(stack_block_group_chunk_objectid, | |
248 | struct btrfs_block_group_item, chunk_objectid, 64); | |
249 | ||
250 | BTRFS_SETGET_FUNCS(block_group_chunk_objectid, | |
251 | struct btrfs_block_group_item, chunk_objectid, 64); | |
252 | BTRFS_SETGET_FUNCS(block_group_flags, struct btrfs_block_group_item, flags, 64); | |
253 | BTRFS_SETGET_STACK_FUNCS(stack_block_group_flags, | |
254 | struct btrfs_block_group_item, flags, 64); | |
255 | ||
256 | /* struct btrfs_free_space_info */ | |
257 | BTRFS_SETGET_FUNCS(free_space_extent_count, struct btrfs_free_space_info, | |
258 | extent_count, 32); | |
259 | BTRFS_SETGET_FUNCS(free_space_flags, struct btrfs_free_space_info, flags, 32); | |
260 | ||
261 | /* struct btrfs_inode_ref */ | |
262 | BTRFS_SETGET_FUNCS(inode_ref_name_len, struct btrfs_inode_ref, name_len, 16); | |
263 | BTRFS_SETGET_FUNCS(inode_ref_index, struct btrfs_inode_ref, index, 64); | |
054056bd JB |
264 | BTRFS_SETGET_STACK_FUNCS(stack_inode_ref_name_len, struct btrfs_inode_ref, name_len, 16); |
265 | BTRFS_SETGET_STACK_FUNCS(stack_inode_ref_index, struct btrfs_inode_ref, index, 64); | |
07e81dc9 JB |
266 | |
267 | /* struct btrfs_inode_extref */ | |
268 | BTRFS_SETGET_FUNCS(inode_extref_parent, struct btrfs_inode_extref, | |
269 | parent_objectid, 64); | |
270 | BTRFS_SETGET_FUNCS(inode_extref_name_len, struct btrfs_inode_extref, | |
271 | name_len, 16); | |
272 | BTRFS_SETGET_FUNCS(inode_extref_index, struct btrfs_inode_extref, index, 64); | |
273 | ||
274 | /* struct btrfs_inode_item */ | |
275 | BTRFS_SETGET_FUNCS(inode_generation, struct btrfs_inode_item, generation, 64); | |
276 | BTRFS_SETGET_FUNCS(inode_sequence, struct btrfs_inode_item, sequence, 64); | |
277 | BTRFS_SETGET_FUNCS(inode_transid, struct btrfs_inode_item, transid, 64); | |
278 | BTRFS_SETGET_FUNCS(inode_size, struct btrfs_inode_item, size, 64); | |
279 | BTRFS_SETGET_FUNCS(inode_nbytes, struct btrfs_inode_item, nbytes, 64); | |
280 | BTRFS_SETGET_FUNCS(inode_block_group, struct btrfs_inode_item, block_group, 64); | |
281 | BTRFS_SETGET_FUNCS(inode_nlink, struct btrfs_inode_item, nlink, 32); | |
282 | BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32); | |
283 | BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32); | |
284 | BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32); | |
285 | BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64); | |
286 | BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64); | |
287 | BTRFS_SETGET_STACK_FUNCS(stack_inode_generation, struct btrfs_inode_item, | |
288 | generation, 64); | |
289 | BTRFS_SETGET_STACK_FUNCS(stack_inode_sequence, struct btrfs_inode_item, | |
290 | sequence, 64); | |
291 | BTRFS_SETGET_STACK_FUNCS(stack_inode_transid, struct btrfs_inode_item, | |
292 | transid, 64); | |
293 | BTRFS_SETGET_STACK_FUNCS(stack_inode_size, struct btrfs_inode_item, size, 64); | |
294 | BTRFS_SETGET_STACK_FUNCS(stack_inode_nbytes, struct btrfs_inode_item, nbytes, 64); | |
295 | BTRFS_SETGET_STACK_FUNCS(stack_inode_block_group, struct btrfs_inode_item, | |
296 | block_group, 64); | |
297 | BTRFS_SETGET_STACK_FUNCS(stack_inode_nlink, struct btrfs_inode_item, nlink, 32); | |
298 | BTRFS_SETGET_STACK_FUNCS(stack_inode_uid, struct btrfs_inode_item, uid, 32); | |
299 | BTRFS_SETGET_STACK_FUNCS(stack_inode_gid, struct btrfs_inode_item, gid, 32); | |
300 | BTRFS_SETGET_STACK_FUNCS(stack_inode_mode, struct btrfs_inode_item, mode, 32); | |
301 | BTRFS_SETGET_STACK_FUNCS(stack_inode_rdev, struct btrfs_inode_item, rdev, 64); | |
302 | BTRFS_SETGET_STACK_FUNCS(stack_inode_flags, struct btrfs_inode_item, flags, 64); | |
303 | BTRFS_SETGET_FUNCS(timespec_sec, struct btrfs_timespec, sec, 64); | |
304 | BTRFS_SETGET_FUNCS(timespec_nsec, struct btrfs_timespec, nsec, 32); | |
305 | BTRFS_SETGET_STACK_FUNCS(stack_timespec_sec, struct btrfs_timespec, sec, 64); | |
306 | BTRFS_SETGET_STACK_FUNCS(stack_timespec_nsec, struct btrfs_timespec, nsec, 32); | |
307 | ||
308 | /* struct btrfs_dev_extent */ | |
309 | BTRFS_SETGET_FUNCS(dev_extent_chunk_tree, struct btrfs_dev_extent, chunk_tree, 64); | |
310 | BTRFS_SETGET_FUNCS(dev_extent_chunk_objectid, struct btrfs_dev_extent, | |
311 | chunk_objectid, 64); | |
312 | BTRFS_SETGET_FUNCS(dev_extent_chunk_offset, struct btrfs_dev_extent, | |
313 | chunk_offset, 64); | |
314 | BTRFS_SETGET_FUNCS(dev_extent_length, struct btrfs_dev_extent, length, 64); | |
054056bd JB |
315 | BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_tree, struct btrfs_dev_extent, |
316 | chunk_tree, 64); | |
317 | BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_objectid, struct btrfs_dev_extent, | |
318 | chunk_objectid, 64); | |
319 | BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_chunk_offset, struct btrfs_dev_extent, | |
320 | chunk_offset, 64); | |
321 | BTRFS_SETGET_STACK_FUNCS(stack_dev_extent_length, struct btrfs_dev_extent, length, 64); | |
322 | ||
07e81dc9 JB |
323 | BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 64); |
324 | BTRFS_SETGET_FUNCS(extent_generation, struct btrfs_extent_item, generation, 64); | |
325 | BTRFS_SETGET_FUNCS(extent_flags, struct btrfs_extent_item, flags, 64); | |
326 | ||
327 | BTRFS_SETGET_FUNCS(tree_block_level, struct btrfs_tree_block_info, level, 8); | |
328 | ||
329 | static inline void btrfs_tree_block_key(const struct extent_buffer *eb, | |
330 | struct btrfs_tree_block_info *item, | |
331 | struct btrfs_disk_key *key) | |
332 | { | |
333 | read_eb_member(eb, item, struct btrfs_tree_block_info, key, key); | |
334 | } | |
335 | ||
336 | static inline void btrfs_set_tree_block_key(const struct extent_buffer *eb, | |
337 | struct btrfs_tree_block_info *item, | |
338 | struct btrfs_disk_key *key) | |
339 | { | |
340 | write_eb_member(eb, item, struct btrfs_tree_block_info, key, key); | |
341 | } | |
342 | ||
343 | BTRFS_SETGET_FUNCS(extent_data_ref_root, struct btrfs_extent_data_ref, root, 64); | |
344 | BTRFS_SETGET_FUNCS(extent_data_ref_objectid, struct btrfs_extent_data_ref, | |
345 | objectid, 64); | |
346 | BTRFS_SETGET_FUNCS(extent_data_ref_offset, struct btrfs_extent_data_ref, | |
347 | offset, 64); | |
348 | BTRFS_SETGET_FUNCS(extent_data_ref_count, struct btrfs_extent_data_ref, count, 32); | |
349 | ||
350 | BTRFS_SETGET_FUNCS(shared_data_ref_count, struct btrfs_shared_data_ref, count, 32); | |
351 | ||
352 | BTRFS_SETGET_FUNCS(extent_inline_ref_type, struct btrfs_extent_inline_ref, | |
353 | type, 8); | |
354 | BTRFS_SETGET_FUNCS(extent_inline_ref_offset, struct btrfs_extent_inline_ref, | |
355 | offset, 64); | |
356 | ||
357 | static inline u32 btrfs_extent_inline_ref_size(int type) | |
358 | { | |
359 | if (type == BTRFS_TREE_BLOCK_REF_KEY || | |
360 | type == BTRFS_SHARED_BLOCK_REF_KEY) | |
361 | return sizeof(struct btrfs_extent_inline_ref); | |
362 | if (type == BTRFS_SHARED_DATA_REF_KEY) | |
363 | return sizeof(struct btrfs_shared_data_ref) + | |
364 | sizeof(struct btrfs_extent_inline_ref); | |
365 | if (type == BTRFS_EXTENT_DATA_REF_KEY) | |
366 | return sizeof(struct btrfs_extent_data_ref) + | |
367 | offsetof(struct btrfs_extent_inline_ref, offset); | |
368 | return 0; | |
369 | } | |
370 | ||
371 | /* struct btrfs_node */ | |
372 | BTRFS_SETGET_FUNCS(key_blockptr, struct btrfs_key_ptr, blockptr, 64); | |
373 | BTRFS_SETGET_FUNCS(key_generation, struct btrfs_key_ptr, generation, 64); | |
374 | BTRFS_SETGET_STACK_FUNCS(stack_key_blockptr, struct btrfs_key_ptr, blockptr, 64); | |
375 | BTRFS_SETGET_STACK_FUNCS(stack_key_generation, struct btrfs_key_ptr, | |
376 | generation, 64); | |
377 | ||
378 | static inline u64 btrfs_node_blockptr(const struct extent_buffer *eb, int nr) | |
379 | { | |
380 | unsigned long ptr; | |
381 | ||
382 | ptr = offsetof(struct btrfs_node, ptrs) + | |
383 | sizeof(struct btrfs_key_ptr) * nr; | |
384 | return btrfs_key_blockptr(eb, (struct btrfs_key_ptr *)ptr); | |
385 | } | |
386 | ||
387 | static inline void btrfs_set_node_blockptr(const struct extent_buffer *eb, | |
388 | int nr, u64 val) | |
389 | { | |
390 | unsigned long ptr; | |
391 | ||
392 | ptr = offsetof(struct btrfs_node, ptrs) + | |
393 | sizeof(struct btrfs_key_ptr) * nr; | |
394 | btrfs_set_key_blockptr(eb, (struct btrfs_key_ptr *)ptr, val); | |
395 | } | |
396 | ||
397 | static inline u64 btrfs_node_ptr_generation(const struct extent_buffer *eb, int nr) | |
398 | { | |
399 | unsigned long ptr; | |
400 | ||
401 | ptr = offsetof(struct btrfs_node, ptrs) + | |
402 | sizeof(struct btrfs_key_ptr) * nr; | |
403 | return btrfs_key_generation(eb, (struct btrfs_key_ptr *)ptr); | |
404 | } | |
405 | ||
406 | static inline void btrfs_set_node_ptr_generation(const struct extent_buffer *eb, | |
407 | int nr, u64 val) | |
408 | { | |
409 | unsigned long ptr; | |
410 | ||
411 | ptr = offsetof(struct btrfs_node, ptrs) + | |
412 | sizeof(struct btrfs_key_ptr) * nr; | |
413 | btrfs_set_key_generation(eb, (struct btrfs_key_ptr *)ptr, val); | |
414 | } | |
415 | ||
e23efd8e | 416 | static inline unsigned long btrfs_node_key_ptr_offset(const struct extent_buffer *eb, int nr) |
07e81dc9 JB |
417 | { |
418 | return offsetof(struct btrfs_node, ptrs) + | |
419 | sizeof(struct btrfs_key_ptr) * nr; | |
420 | } | |
421 | ||
422 | void btrfs_node_key(const struct extent_buffer *eb, | |
423 | struct btrfs_disk_key *disk_key, int nr); | |
424 | ||
425 | static inline void btrfs_set_node_key(const struct extent_buffer *eb, | |
426 | struct btrfs_disk_key *disk_key, int nr) | |
427 | { | |
428 | unsigned long ptr; | |
429 | ||
e23efd8e | 430 | ptr = btrfs_node_key_ptr_offset(eb, nr); |
07e81dc9 JB |
431 | write_eb_member(eb, (struct btrfs_key_ptr *)ptr, |
432 | struct btrfs_key_ptr, key, disk_key); | |
433 | } | |
434 | ||
435 | /* struct btrfs_item */ | |
436 | BTRFS_SETGET_FUNCS(raw_item_offset, struct btrfs_item, offset, 32); | |
437 | BTRFS_SETGET_FUNCS(raw_item_size, struct btrfs_item, size, 32); | |
438 | BTRFS_SETGET_STACK_FUNCS(stack_item_offset, struct btrfs_item, offset, 32); | |
439 | BTRFS_SETGET_STACK_FUNCS(stack_item_size, struct btrfs_item, size, 32); | |
440 | ||
42c9419a | 441 | static inline unsigned long btrfs_item_nr_offset(const struct extent_buffer *eb, int nr) |
07e81dc9 JB |
442 | { |
443 | return offsetof(struct btrfs_leaf, items) + | |
444 | sizeof(struct btrfs_item) * nr; | |
445 | } | |
446 | ||
42c9419a | 447 | static inline struct btrfs_item *btrfs_item_nr(const struct extent_buffer *eb, int nr) |
07e81dc9 | 448 | { |
42c9419a | 449 | return (struct btrfs_item *)btrfs_item_nr_offset(eb, nr); |
07e81dc9 JB |
450 | } |
451 | ||
452 | #define BTRFS_ITEM_SETGET_FUNCS(member) \ | |
453 | static inline u32 btrfs_item_##member(const struct extent_buffer *eb, int slot) \ | |
454 | { \ | |
42c9419a | 455 | return btrfs_raw_item_##member(eb, btrfs_item_nr(eb, slot)); \ |
07e81dc9 JB |
456 | } \ |
457 | static inline void btrfs_set_item_##member(const struct extent_buffer *eb, \ | |
458 | int slot, u32 val) \ | |
459 | { \ | |
42c9419a | 460 | btrfs_set_raw_item_##member(eb, btrfs_item_nr(eb, slot), val); \ |
07e81dc9 JB |
461 | } \ |
462 | static inline u32 btrfs_token_item_##member(struct btrfs_map_token *token, \ | |
463 | int slot) \ | |
464 | { \ | |
42c9419a | 465 | struct btrfs_item *item = btrfs_item_nr(token->eb, slot); \ |
07e81dc9 JB |
466 | return btrfs_token_raw_item_##member(token, item); \ |
467 | } \ | |
468 | static inline void btrfs_set_token_item_##member(struct btrfs_map_token *token, \ | |
469 | int slot, u32 val) \ | |
470 | { \ | |
42c9419a | 471 | struct btrfs_item *item = btrfs_item_nr(token->eb, slot); \ |
07e81dc9 JB |
472 | btrfs_set_token_raw_item_##member(token, item, val); \ |
473 | } | |
474 | ||
475 | BTRFS_ITEM_SETGET_FUNCS(offset) | |
476 | BTRFS_ITEM_SETGET_FUNCS(size); | |
477 | ||
478 | static inline u32 btrfs_item_data_end(const struct extent_buffer *eb, int nr) | |
479 | { | |
480 | return btrfs_item_offset(eb, nr) + btrfs_item_size(eb, nr); | |
481 | } | |
482 | ||
483 | static inline void btrfs_item_key(const struct extent_buffer *eb, | |
484 | struct btrfs_disk_key *disk_key, int nr) | |
485 | { | |
42c9419a | 486 | struct btrfs_item *item = btrfs_item_nr(eb, nr); |
07e81dc9 JB |
487 | |
488 | read_eb_member(eb, item, struct btrfs_item, key, disk_key); | |
489 | } | |
490 | ||
491 | static inline void btrfs_set_item_key(struct extent_buffer *eb, | |
492 | struct btrfs_disk_key *disk_key, int nr) | |
493 | { | |
42c9419a | 494 | struct btrfs_item *item = btrfs_item_nr(eb, nr); |
07e81dc9 JB |
495 | |
496 | write_eb_member(eb, item, struct btrfs_item, key, disk_key); | |
497 | } | |
498 | ||
499 | BTRFS_SETGET_FUNCS(dir_log_end, struct btrfs_dir_log_item, end, 64); | |
500 | ||
501 | /* struct btrfs_root_ref */ | |
502 | BTRFS_SETGET_FUNCS(root_ref_dirid, struct btrfs_root_ref, dirid, 64); | |
503 | BTRFS_SETGET_FUNCS(root_ref_sequence, struct btrfs_root_ref, sequence, 64); | |
504 | BTRFS_SETGET_FUNCS(root_ref_name_len, struct btrfs_root_ref, name_len, 16); | |
054056bd JB |
505 | BTRFS_SETGET_STACK_FUNCS(stack_root_ref_dirid, struct btrfs_root_ref, dirid, 64); |
506 | BTRFS_SETGET_STACK_FUNCS(stack_root_ref_sequence, struct btrfs_root_ref, sequence, 64); | |
507 | BTRFS_SETGET_STACK_FUNCS(stack_root_ref_name_len, struct btrfs_root_ref, name_len, 16); | |
07e81dc9 JB |
508 | |
509 | /* struct btrfs_dir_item */ | |
510 | BTRFS_SETGET_FUNCS(dir_data_len, struct btrfs_dir_item, data_len, 16); | |
94a48aef | 511 | BTRFS_SETGET_FUNCS(dir_flags, struct btrfs_dir_item, type, 8); |
07e81dc9 JB |
512 | BTRFS_SETGET_FUNCS(dir_name_len, struct btrfs_dir_item, name_len, 16); |
513 | BTRFS_SETGET_FUNCS(dir_transid, struct btrfs_dir_item, transid, 64); | |
94a48aef | 514 | BTRFS_SETGET_STACK_FUNCS(stack_dir_flags, struct btrfs_dir_item, type, 8); |
07e81dc9 JB |
515 | BTRFS_SETGET_STACK_FUNCS(stack_dir_data_len, struct btrfs_dir_item, data_len, 16); |
516 | BTRFS_SETGET_STACK_FUNCS(stack_dir_name_len, struct btrfs_dir_item, name_len, 16); | |
517 | BTRFS_SETGET_STACK_FUNCS(stack_dir_transid, struct btrfs_dir_item, transid, 64); | |
518 | ||
94a48aef OS |
519 | static inline u8 btrfs_dir_ftype(const struct extent_buffer *eb, |
520 | const struct btrfs_dir_item *item) | |
521 | { | |
522 | return btrfs_dir_flags_to_ftype(btrfs_dir_flags(eb, item)); | |
523 | } | |
524 | ||
525 | static inline u8 btrfs_stack_dir_ftype(const struct btrfs_dir_item *item) | |
526 | { | |
527 | return btrfs_dir_flags_to_ftype(btrfs_stack_dir_flags(item)); | |
528 | } | |
529 | ||
07e81dc9 JB |
530 | static inline void btrfs_dir_item_key(const struct extent_buffer *eb, |
531 | const struct btrfs_dir_item *item, | |
532 | struct btrfs_disk_key *key) | |
533 | { | |
534 | read_eb_member(eb, item, struct btrfs_dir_item, location, key); | |
535 | } | |
536 | ||
537 | static inline void btrfs_set_dir_item_key(struct extent_buffer *eb, | |
538 | struct btrfs_dir_item *item, | |
539 | const struct btrfs_disk_key *key) | |
540 | { | |
541 | write_eb_member(eb, item, struct btrfs_dir_item, location, key); | |
542 | } | |
543 | ||
544 | BTRFS_SETGET_FUNCS(free_space_entries, struct btrfs_free_space_header, | |
545 | num_entries, 64); | |
546 | BTRFS_SETGET_FUNCS(free_space_bitmaps, struct btrfs_free_space_header, | |
547 | num_bitmaps, 64); | |
548 | BTRFS_SETGET_FUNCS(free_space_generation, struct btrfs_free_space_header, | |
549 | generation, 64); | |
550 | ||
551 | static inline void btrfs_free_space_key(const struct extent_buffer *eb, | |
552 | const struct btrfs_free_space_header *h, | |
553 | struct btrfs_disk_key *key) | |
554 | { | |
555 | read_eb_member(eb, h, struct btrfs_free_space_header, location, key); | |
556 | } | |
557 | ||
558 | static inline void btrfs_set_free_space_key(struct extent_buffer *eb, | |
559 | struct btrfs_free_space_header *h, | |
560 | const struct btrfs_disk_key *key) | |
561 | { | |
562 | write_eb_member(eb, h, struct btrfs_free_space_header, location, key); | |
563 | } | |
564 | ||
565 | /* struct btrfs_disk_key */ | |
566 | BTRFS_SETGET_STACK_FUNCS(disk_key_objectid, struct btrfs_disk_key, objectid, 64); | |
567 | BTRFS_SETGET_STACK_FUNCS(disk_key_offset, struct btrfs_disk_key, offset, 64); | |
568 | BTRFS_SETGET_STACK_FUNCS(disk_key_type, struct btrfs_disk_key, type, 8); | |
569 | ||
570 | #ifdef __LITTLE_ENDIAN | |
571 | ||
572 | /* | |
573 | * Optimized helpers for little-endian architectures where CPU and on-disk | |
574 | * structures have the same endianness and we can skip conversions. | |
575 | */ | |
576 | ||
577 | static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu_key, | |
578 | const struct btrfs_disk_key *disk_key) | |
579 | { | |
580 | memcpy(cpu_key, disk_key, sizeof(struct btrfs_key)); | |
581 | } | |
582 | ||
583 | static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk_key, | |
584 | const struct btrfs_key *cpu_key) | |
585 | { | |
586 | memcpy(disk_key, cpu_key, sizeof(struct btrfs_key)); | |
587 | } | |
588 | ||
589 | static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb, | |
590 | struct btrfs_key *cpu_key, int nr) | |
591 | { | |
592 | struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key; | |
593 | ||
594 | btrfs_node_key(eb, disk_key, nr); | |
595 | } | |
596 | ||
597 | static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb, | |
598 | struct btrfs_key *cpu_key, int nr) | |
599 | { | |
600 | struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key; | |
601 | ||
602 | btrfs_item_key(eb, disk_key, nr); | |
603 | } | |
604 | ||
605 | static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb, | |
606 | const struct btrfs_dir_item *item, | |
607 | struct btrfs_key *cpu_key) | |
608 | { | |
609 | struct btrfs_disk_key *disk_key = (struct btrfs_disk_key *)cpu_key; | |
610 | ||
611 | btrfs_dir_item_key(eb, item, disk_key); | |
612 | } | |
613 | ||
614 | #else | |
615 | ||
616 | static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu, | |
617 | const struct btrfs_disk_key *disk) | |
618 | { | |
619 | cpu->offset = le64_to_cpu(disk->offset); | |
620 | cpu->type = disk->type; | |
621 | cpu->objectid = le64_to_cpu(disk->objectid); | |
622 | } | |
623 | ||
624 | static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk, | |
625 | const struct btrfs_key *cpu) | |
626 | { | |
627 | disk->offset = cpu_to_le64(cpu->offset); | |
628 | disk->type = cpu->type; | |
629 | disk->objectid = cpu_to_le64(cpu->objectid); | |
630 | } | |
631 | ||
632 | static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb, | |
633 | struct btrfs_key *key, int nr) | |
634 | { | |
635 | struct btrfs_disk_key disk_key; | |
636 | ||
637 | btrfs_node_key(eb, &disk_key, nr); | |
638 | btrfs_disk_key_to_cpu(key, &disk_key); | |
639 | } | |
640 | ||
641 | static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb, | |
642 | struct btrfs_key *key, int nr) | |
643 | { | |
644 | struct btrfs_disk_key disk_key; | |
645 | ||
646 | btrfs_item_key(eb, &disk_key, nr); | |
647 | btrfs_disk_key_to_cpu(key, &disk_key); | |
648 | } | |
649 | ||
650 | static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb, | |
651 | const struct btrfs_dir_item *item, | |
652 | struct btrfs_key *key) | |
653 | { | |
654 | struct btrfs_disk_key disk_key; | |
655 | ||
656 | btrfs_dir_item_key(eb, item, &disk_key); | |
657 | btrfs_disk_key_to_cpu(key, &disk_key); | |
658 | } | |
659 | ||
660 | #endif | |
661 | ||
662 | /* struct btrfs_header */ | |
663 | BTRFS_SETGET_HEADER_FUNCS(header_bytenr, struct btrfs_header, bytenr, 64); | |
664 | BTRFS_SETGET_HEADER_FUNCS(header_generation, struct btrfs_header, generation, 64); | |
665 | BTRFS_SETGET_HEADER_FUNCS(header_owner, struct btrfs_header, owner, 64); | |
666 | BTRFS_SETGET_HEADER_FUNCS(header_nritems, struct btrfs_header, nritems, 32); | |
667 | BTRFS_SETGET_HEADER_FUNCS(header_flags, struct btrfs_header, flags, 64); | |
668 | BTRFS_SETGET_HEADER_FUNCS(header_level, struct btrfs_header, level, 8); | |
669 | BTRFS_SETGET_STACK_FUNCS(stack_header_generation, struct btrfs_header, | |
670 | generation, 64); | |
671 | BTRFS_SETGET_STACK_FUNCS(stack_header_owner, struct btrfs_header, owner, 64); | |
672 | BTRFS_SETGET_STACK_FUNCS(stack_header_nritems, struct btrfs_header, nritems, 32); | |
673 | BTRFS_SETGET_STACK_FUNCS(stack_header_bytenr, struct btrfs_header, bytenr, 64); | |
674 | ||
675 | static inline int btrfs_header_flag(const struct extent_buffer *eb, u64 flag) | |
676 | { | |
677 | return (btrfs_header_flags(eb) & flag) == flag; | |
678 | } | |
679 | ||
680 | static inline void btrfs_set_header_flag(struct extent_buffer *eb, u64 flag) | |
681 | { | |
682 | u64 flags = btrfs_header_flags(eb); | |
683 | ||
684 | btrfs_set_header_flags(eb, flags | flag); | |
685 | } | |
686 | ||
687 | static inline void btrfs_clear_header_flag(struct extent_buffer *eb, u64 flag) | |
688 | { | |
689 | u64 flags = btrfs_header_flags(eb); | |
690 | ||
691 | btrfs_set_header_flags(eb, flags & ~flag); | |
692 | } | |
693 | ||
694 | static inline int btrfs_header_backref_rev(const struct extent_buffer *eb) | |
695 | { | |
696 | u64 flags = btrfs_header_flags(eb); | |
697 | ||
698 | return flags >> BTRFS_BACKREF_REV_SHIFT; | |
699 | } | |
700 | ||
701 | static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb, int rev) | |
702 | { | |
703 | u64 flags = btrfs_header_flags(eb); | |
704 | ||
705 | flags &= ~BTRFS_BACKREF_REV_MASK; | |
706 | flags |= (u64)rev << BTRFS_BACKREF_REV_SHIFT; | |
707 | btrfs_set_header_flags(eb, flags); | |
708 | } | |
709 | ||
710 | static inline int btrfs_is_leaf(const struct extent_buffer *eb) | |
711 | { | |
712 | return btrfs_header_level(eb) == 0; | |
713 | } | |
714 | ||
715 | /* struct btrfs_root_item */ | |
716 | BTRFS_SETGET_FUNCS(disk_root_generation, struct btrfs_root_item, generation, 64); | |
717 | BTRFS_SETGET_FUNCS(disk_root_refs, struct btrfs_root_item, refs, 32); | |
718 | BTRFS_SETGET_FUNCS(disk_root_bytenr, struct btrfs_root_item, bytenr, 64); | |
719 | BTRFS_SETGET_FUNCS(disk_root_level, struct btrfs_root_item, level, 8); | |
720 | ||
721 | BTRFS_SETGET_STACK_FUNCS(root_generation, struct btrfs_root_item, generation, 64); | |
722 | BTRFS_SETGET_STACK_FUNCS(root_bytenr, struct btrfs_root_item, bytenr, 64); | |
723 | BTRFS_SETGET_STACK_FUNCS(root_drop_level, struct btrfs_root_item, drop_level, 8); | |
724 | BTRFS_SETGET_STACK_FUNCS(root_level, struct btrfs_root_item, level, 8); | |
725 | BTRFS_SETGET_STACK_FUNCS(root_dirid, struct btrfs_root_item, root_dirid, 64); | |
726 | BTRFS_SETGET_STACK_FUNCS(root_refs, struct btrfs_root_item, refs, 32); | |
727 | BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 64); | |
728 | BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64); | |
729 | BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64); | |
730 | BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item, | |
731 | last_snapshot, 64); | |
732 | BTRFS_SETGET_STACK_FUNCS(root_generation_v2, struct btrfs_root_item, | |
733 | generation_v2, 64); | |
734 | BTRFS_SETGET_STACK_FUNCS(root_ctransid, struct btrfs_root_item, ctransid, 64); | |
735 | BTRFS_SETGET_STACK_FUNCS(root_otransid, struct btrfs_root_item, otransid, 64); | |
736 | BTRFS_SETGET_STACK_FUNCS(root_stransid, struct btrfs_root_item, stransid, 64); | |
737 | BTRFS_SETGET_STACK_FUNCS(root_rtransid, struct btrfs_root_item, rtransid, 64); | |
738 | ||
07e81dc9 JB |
739 | /* struct btrfs_root_backup */ |
740 | BTRFS_SETGET_STACK_FUNCS(backup_tree_root, struct btrfs_root_backup, | |
741 | tree_root, 64); | |
742 | BTRFS_SETGET_STACK_FUNCS(backup_tree_root_gen, struct btrfs_root_backup, | |
743 | tree_root_gen, 64); | |
744 | BTRFS_SETGET_STACK_FUNCS(backup_tree_root_level, struct btrfs_root_backup, | |
745 | tree_root_level, 8); | |
746 | ||
747 | BTRFS_SETGET_STACK_FUNCS(backup_chunk_root, struct btrfs_root_backup, | |
748 | chunk_root, 64); | |
749 | BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_gen, struct btrfs_root_backup, | |
750 | chunk_root_gen, 64); | |
751 | BTRFS_SETGET_STACK_FUNCS(backup_chunk_root_level, struct btrfs_root_backup, | |
752 | chunk_root_level, 8); | |
753 | ||
754 | BTRFS_SETGET_STACK_FUNCS(backup_extent_root, struct btrfs_root_backup, | |
755 | extent_root, 64); | |
756 | BTRFS_SETGET_STACK_FUNCS(backup_extent_root_gen, struct btrfs_root_backup, | |
757 | extent_root_gen, 64); | |
758 | BTRFS_SETGET_STACK_FUNCS(backup_extent_root_level, struct btrfs_root_backup, | |
759 | extent_root_level, 8); | |
760 | ||
761 | BTRFS_SETGET_STACK_FUNCS(backup_fs_root, struct btrfs_root_backup, | |
762 | fs_root, 64); | |
763 | BTRFS_SETGET_STACK_FUNCS(backup_fs_root_gen, struct btrfs_root_backup, | |
764 | fs_root_gen, 64); | |
765 | BTRFS_SETGET_STACK_FUNCS(backup_fs_root_level, struct btrfs_root_backup, | |
766 | fs_root_level, 8); | |
767 | ||
768 | BTRFS_SETGET_STACK_FUNCS(backup_dev_root, struct btrfs_root_backup, | |
769 | dev_root, 64); | |
770 | BTRFS_SETGET_STACK_FUNCS(backup_dev_root_gen, struct btrfs_root_backup, | |
771 | dev_root_gen, 64); | |
772 | BTRFS_SETGET_STACK_FUNCS(backup_dev_root_level, struct btrfs_root_backup, | |
773 | dev_root_level, 8); | |
774 | ||
775 | BTRFS_SETGET_STACK_FUNCS(backup_csum_root, struct btrfs_root_backup, | |
776 | csum_root, 64); | |
777 | BTRFS_SETGET_STACK_FUNCS(backup_csum_root_gen, struct btrfs_root_backup, | |
778 | csum_root_gen, 64); | |
779 | BTRFS_SETGET_STACK_FUNCS(backup_csum_root_level, struct btrfs_root_backup, | |
780 | csum_root_level, 8); | |
781 | BTRFS_SETGET_STACK_FUNCS(backup_total_bytes, struct btrfs_root_backup, | |
782 | total_bytes, 64); | |
783 | BTRFS_SETGET_STACK_FUNCS(backup_bytes_used, struct btrfs_root_backup, | |
784 | bytes_used, 64); | |
785 | BTRFS_SETGET_STACK_FUNCS(backup_num_devices, struct btrfs_root_backup, | |
786 | num_devices, 64); | |
787 | ||
788 | /* struct btrfs_balance_item */ | |
789 | BTRFS_SETGET_FUNCS(balance_flags, struct btrfs_balance_item, flags, 64); | |
790 | ||
791 | static inline void btrfs_balance_data(const struct extent_buffer *eb, | |
792 | const struct btrfs_balance_item *bi, | |
793 | struct btrfs_disk_balance_args *ba) | |
794 | { | |
795 | read_eb_member(eb, bi, struct btrfs_balance_item, data, ba); | |
796 | } | |
797 | ||
798 | static inline void btrfs_set_balance_data(struct extent_buffer *eb, | |
799 | struct btrfs_balance_item *bi, | |
800 | const struct btrfs_disk_balance_args *ba) | |
801 | { | |
802 | write_eb_member(eb, bi, struct btrfs_balance_item, data, ba); | |
803 | } | |
804 | ||
805 | static inline void btrfs_balance_meta(const struct extent_buffer *eb, | |
806 | const struct btrfs_balance_item *bi, | |
807 | struct btrfs_disk_balance_args *ba) | |
808 | { | |
809 | read_eb_member(eb, bi, struct btrfs_balance_item, meta, ba); | |
810 | } | |
811 | ||
812 | static inline void btrfs_set_balance_meta(struct extent_buffer *eb, | |
813 | struct btrfs_balance_item *bi, | |
814 | const struct btrfs_disk_balance_args *ba) | |
815 | { | |
816 | write_eb_member(eb, bi, struct btrfs_balance_item, meta, ba); | |
817 | } | |
818 | ||
819 | static inline void btrfs_balance_sys(const struct extent_buffer *eb, | |
820 | const struct btrfs_balance_item *bi, | |
821 | struct btrfs_disk_balance_args *ba) | |
822 | { | |
823 | read_eb_member(eb, bi, struct btrfs_balance_item, sys, ba); | |
824 | } | |
825 | ||
826 | static inline void btrfs_set_balance_sys(struct extent_buffer *eb, | |
827 | struct btrfs_balance_item *bi, | |
828 | const struct btrfs_disk_balance_args *ba) | |
829 | { | |
830 | write_eb_member(eb, bi, struct btrfs_balance_item, sys, ba); | |
831 | } | |
832 | ||
833 | static inline void btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu, | |
834 | const struct btrfs_disk_balance_args *disk) | |
835 | { | |
836 | memset(cpu, 0, sizeof(*cpu)); | |
837 | ||
838 | cpu->profiles = le64_to_cpu(disk->profiles); | |
839 | cpu->usage = le64_to_cpu(disk->usage); | |
840 | cpu->devid = le64_to_cpu(disk->devid); | |
841 | cpu->pstart = le64_to_cpu(disk->pstart); | |
842 | cpu->pend = le64_to_cpu(disk->pend); | |
843 | cpu->vstart = le64_to_cpu(disk->vstart); | |
844 | cpu->vend = le64_to_cpu(disk->vend); | |
845 | cpu->target = le64_to_cpu(disk->target); | |
846 | cpu->flags = le64_to_cpu(disk->flags); | |
847 | cpu->limit = le64_to_cpu(disk->limit); | |
848 | cpu->stripes_min = le32_to_cpu(disk->stripes_min); | |
849 | cpu->stripes_max = le32_to_cpu(disk->stripes_max); | |
850 | } | |
851 | ||
852 | static inline void btrfs_cpu_balance_args_to_disk( | |
853 | struct btrfs_disk_balance_args *disk, | |
854 | const struct btrfs_balance_args *cpu) | |
855 | { | |
856 | memset(disk, 0, sizeof(*disk)); | |
857 | ||
858 | disk->profiles = cpu_to_le64(cpu->profiles); | |
859 | disk->usage = cpu_to_le64(cpu->usage); | |
860 | disk->devid = cpu_to_le64(cpu->devid); | |
861 | disk->pstart = cpu_to_le64(cpu->pstart); | |
862 | disk->pend = cpu_to_le64(cpu->pend); | |
863 | disk->vstart = cpu_to_le64(cpu->vstart); | |
864 | disk->vend = cpu_to_le64(cpu->vend); | |
865 | disk->target = cpu_to_le64(cpu->target); | |
866 | disk->flags = cpu_to_le64(cpu->flags); | |
867 | disk->limit = cpu_to_le64(cpu->limit); | |
868 | disk->stripes_min = cpu_to_le32(cpu->stripes_min); | |
869 | disk->stripes_max = cpu_to_le32(cpu->stripes_max); | |
870 | } | |
871 | ||
872 | /* struct btrfs_super_block */ | |
873 | BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64); | |
874 | BTRFS_SETGET_STACK_FUNCS(super_flags, struct btrfs_super_block, flags, 64); | |
875 | BTRFS_SETGET_STACK_FUNCS(super_generation, struct btrfs_super_block, | |
876 | generation, 64); | |
877 | BTRFS_SETGET_STACK_FUNCS(super_root, struct btrfs_super_block, root, 64); | |
878 | BTRFS_SETGET_STACK_FUNCS(super_sys_array_size, | |
879 | struct btrfs_super_block, sys_chunk_array_size, 32); | |
880 | BTRFS_SETGET_STACK_FUNCS(super_chunk_root_generation, | |
881 | struct btrfs_super_block, chunk_root_generation, 64); | |
882 | BTRFS_SETGET_STACK_FUNCS(super_root_level, struct btrfs_super_block, | |
883 | root_level, 8); | |
884 | BTRFS_SETGET_STACK_FUNCS(super_chunk_root, struct btrfs_super_block, | |
885 | chunk_root, 64); | |
886 | BTRFS_SETGET_STACK_FUNCS(super_chunk_root_level, struct btrfs_super_block, | |
887 | chunk_root_level, 8); | |
888 | BTRFS_SETGET_STACK_FUNCS(super_log_root, struct btrfs_super_block, log_root, 64); | |
889 | BTRFS_SETGET_STACK_FUNCS(super_log_root_level, struct btrfs_super_block, | |
890 | log_root_level, 8); | |
891 | BTRFS_SETGET_STACK_FUNCS(super_total_bytes, struct btrfs_super_block, | |
892 | total_bytes, 64); | |
893 | BTRFS_SETGET_STACK_FUNCS(super_bytes_used, struct btrfs_super_block, | |
894 | bytes_used, 64); | |
895 | BTRFS_SETGET_STACK_FUNCS(super_sectorsize, struct btrfs_super_block, | |
896 | sectorsize, 32); | |
897 | BTRFS_SETGET_STACK_FUNCS(super_nodesize, struct btrfs_super_block, | |
898 | nodesize, 32); | |
899 | BTRFS_SETGET_STACK_FUNCS(super_stripesize, struct btrfs_super_block, | |
900 | stripesize, 32); | |
901 | BTRFS_SETGET_STACK_FUNCS(super_root_dir, struct btrfs_super_block, | |
902 | root_dir_objectid, 64); | |
903 | BTRFS_SETGET_STACK_FUNCS(super_num_devices, struct btrfs_super_block, | |
904 | num_devices, 64); | |
905 | BTRFS_SETGET_STACK_FUNCS(super_compat_flags, struct btrfs_super_block, | |
906 | compat_flags, 64); | |
907 | BTRFS_SETGET_STACK_FUNCS(super_compat_ro_flags, struct btrfs_super_block, | |
908 | compat_ro_flags, 64); | |
909 | BTRFS_SETGET_STACK_FUNCS(super_incompat_flags, struct btrfs_super_block, | |
910 | incompat_flags, 64); | |
911 | BTRFS_SETGET_STACK_FUNCS(super_csum_type, struct btrfs_super_block, | |
912 | csum_type, 16); | |
913 | BTRFS_SETGET_STACK_FUNCS(super_cache_generation, struct btrfs_super_block, | |
914 | cache_generation, 64); | |
915 | BTRFS_SETGET_STACK_FUNCS(super_magic, struct btrfs_super_block, magic, 64); | |
916 | BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block, | |
917 | uuid_tree_generation, 64); | |
0c703003 JB |
918 | BTRFS_SETGET_STACK_FUNCS(super_nr_global_roots, struct btrfs_super_block, |
919 | nr_global_roots, 64); | |
07e81dc9 | 920 | |
07e81dc9 JB |
921 | /* struct btrfs_file_extent_item */ |
922 | BTRFS_SETGET_STACK_FUNCS(stack_file_extent_type, struct btrfs_file_extent_item, | |
923 | type, 8); | |
924 | BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_bytenr, | |
925 | struct btrfs_file_extent_item, disk_bytenr, 64); | |
926 | BTRFS_SETGET_STACK_FUNCS(stack_file_extent_offset, | |
927 | struct btrfs_file_extent_item, offset, 64); | |
928 | BTRFS_SETGET_STACK_FUNCS(stack_file_extent_generation, | |
929 | struct btrfs_file_extent_item, generation, 64); | |
930 | BTRFS_SETGET_STACK_FUNCS(stack_file_extent_num_bytes, | |
931 | struct btrfs_file_extent_item, num_bytes, 64); | |
932 | BTRFS_SETGET_STACK_FUNCS(stack_file_extent_ram_bytes, | |
933 | struct btrfs_file_extent_item, ram_bytes, 64); | |
934 | BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_num_bytes, | |
935 | struct btrfs_file_extent_item, disk_num_bytes, 64); | |
936 | BTRFS_SETGET_STACK_FUNCS(stack_file_extent_compression, | |
937 | struct btrfs_file_extent_item, compression, 8); | |
938 | ||
07e81dc9 JB |
939 | |
940 | BTRFS_SETGET_FUNCS(file_extent_type, struct btrfs_file_extent_item, type, 8); | |
941 | BTRFS_SETGET_FUNCS(file_extent_disk_bytenr, struct btrfs_file_extent_item, | |
942 | disk_bytenr, 64); | |
943 | BTRFS_SETGET_FUNCS(file_extent_generation, struct btrfs_file_extent_item, | |
944 | generation, 64); | |
945 | BTRFS_SETGET_FUNCS(file_extent_disk_num_bytes, struct btrfs_file_extent_item, | |
946 | disk_num_bytes, 64); | |
947 | BTRFS_SETGET_FUNCS(file_extent_offset, struct btrfs_file_extent_item, | |
948 | offset, 64); | |
949 | BTRFS_SETGET_FUNCS(file_extent_num_bytes, struct btrfs_file_extent_item, | |
950 | num_bytes, 64); | |
951 | BTRFS_SETGET_FUNCS(file_extent_ram_bytes, struct btrfs_file_extent_item, | |
952 | ram_bytes, 64); | |
953 | BTRFS_SETGET_FUNCS(file_extent_compression, struct btrfs_file_extent_item, | |
954 | compression, 8); | |
955 | BTRFS_SETGET_FUNCS(file_extent_encryption, struct btrfs_file_extent_item, | |
956 | encryption, 8); | |
957 | BTRFS_SETGET_FUNCS(file_extent_other_encoding, struct btrfs_file_extent_item, | |
958 | other_encoding, 16); | |
959 | ||
07e81dc9 JB |
960 | /* btrfs_qgroup_status_item */ |
961 | BTRFS_SETGET_FUNCS(qgroup_status_generation, struct btrfs_qgroup_status_item, | |
962 | generation, 64); | |
963 | BTRFS_SETGET_FUNCS(qgroup_status_version, struct btrfs_qgroup_status_item, | |
964 | version, 64); | |
965 | BTRFS_SETGET_FUNCS(qgroup_status_flags, struct btrfs_qgroup_status_item, | |
966 | flags, 64); | |
967 | BTRFS_SETGET_FUNCS(qgroup_status_rescan, struct btrfs_qgroup_status_item, | |
968 | rescan, 64); | |
969 | ||
970 | /* btrfs_qgroup_info_item */ | |
971 | BTRFS_SETGET_FUNCS(qgroup_info_generation, struct btrfs_qgroup_info_item, | |
972 | generation, 64); | |
973 | BTRFS_SETGET_FUNCS(qgroup_info_rfer, struct btrfs_qgroup_info_item, rfer, 64); | |
974 | BTRFS_SETGET_FUNCS(qgroup_info_rfer_cmpr, struct btrfs_qgroup_info_item, | |
975 | rfer_cmpr, 64); | |
976 | BTRFS_SETGET_FUNCS(qgroup_info_excl, struct btrfs_qgroup_info_item, excl, 64); | |
977 | BTRFS_SETGET_FUNCS(qgroup_info_excl_cmpr, struct btrfs_qgroup_info_item, | |
978 | excl_cmpr, 64); | |
979 | ||
980 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_generation, | |
981 | struct btrfs_qgroup_info_item, generation, 64); | |
982 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer, struct btrfs_qgroup_info_item, | |
983 | rfer, 64); | |
984 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_rfer_cmpr, | |
985 | struct btrfs_qgroup_info_item, rfer_cmpr, 64); | |
986 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl, struct btrfs_qgroup_info_item, | |
987 | excl, 64); | |
988 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_info_excl_cmpr, | |
989 | struct btrfs_qgroup_info_item, excl_cmpr, 64); | |
990 | ||
991 | /* btrfs_qgroup_limit_item */ | |
992 | BTRFS_SETGET_FUNCS(qgroup_limit_flags, struct btrfs_qgroup_limit_item, flags, 64); | |
993 | BTRFS_SETGET_FUNCS(qgroup_limit_max_rfer, struct btrfs_qgroup_limit_item, | |
994 | max_rfer, 64); | |
995 | BTRFS_SETGET_FUNCS(qgroup_limit_max_excl, struct btrfs_qgroup_limit_item, | |
996 | max_excl, 64); | |
997 | BTRFS_SETGET_FUNCS(qgroup_limit_rsv_rfer, struct btrfs_qgroup_limit_item, | |
998 | rsv_rfer, 64); | |
999 | BTRFS_SETGET_FUNCS(qgroup_limit_rsv_excl, struct btrfs_qgroup_limit_item, | |
1000 | rsv_excl, 64); | |
054056bd JB |
1001 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_flags, |
1002 | struct btrfs_qgroup_limit_item, flags, 64); | |
1003 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_rfer, | |
1004 | struct btrfs_qgroup_limit_item, max_rfer, 64); | |
1005 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_excl, | |
1006 | struct btrfs_qgroup_limit_item, max_excl, 64); | |
1007 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_rfer, | |
1008 | struct btrfs_qgroup_limit_item, rsv_rfer, 64); | |
1009 | BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_excl, | |
1010 | struct btrfs_qgroup_limit_item, rsv_excl, 64); | |
07e81dc9 JB |
1011 | |
1012 | /* btrfs_dev_replace_item */ | |
1013 | BTRFS_SETGET_FUNCS(dev_replace_src_devid, | |
1014 | struct btrfs_dev_replace_item, src_devid, 64); | |
1015 | BTRFS_SETGET_FUNCS(dev_replace_cont_reading_from_srcdev_mode, | |
1016 | struct btrfs_dev_replace_item, cont_reading_from_srcdev_mode, | |
1017 | 64); | |
1018 | BTRFS_SETGET_FUNCS(dev_replace_replace_state, struct btrfs_dev_replace_item, | |
1019 | replace_state, 64); | |
1020 | BTRFS_SETGET_FUNCS(dev_replace_time_started, struct btrfs_dev_replace_item, | |
1021 | time_started, 64); | |
1022 | BTRFS_SETGET_FUNCS(dev_replace_time_stopped, struct btrfs_dev_replace_item, | |
1023 | time_stopped, 64); | |
1024 | BTRFS_SETGET_FUNCS(dev_replace_num_write_errors, struct btrfs_dev_replace_item, | |
1025 | num_write_errors, 64); | |
1026 | BTRFS_SETGET_FUNCS(dev_replace_num_uncorrectable_read_errors, | |
1027 | struct btrfs_dev_replace_item, num_uncorrectable_read_errors, | |
1028 | 64); | |
1029 | BTRFS_SETGET_FUNCS(dev_replace_cursor_left, struct btrfs_dev_replace_item, | |
1030 | cursor_left, 64); | |
1031 | BTRFS_SETGET_FUNCS(dev_replace_cursor_right, struct btrfs_dev_replace_item, | |
1032 | cursor_right, 64); | |
1033 | ||
1034 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_src_devid, | |
1035 | struct btrfs_dev_replace_item, src_devid, 64); | |
1036 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cont_reading_from_srcdev_mode, | |
1037 | struct btrfs_dev_replace_item, | |
1038 | cont_reading_from_srcdev_mode, 64); | |
1039 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_replace_state, | |
1040 | struct btrfs_dev_replace_item, replace_state, 64); | |
1041 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_started, | |
1042 | struct btrfs_dev_replace_item, time_started, 64); | |
1043 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_time_stopped, | |
1044 | struct btrfs_dev_replace_item, time_stopped, 64); | |
1045 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_write_errors, | |
1046 | struct btrfs_dev_replace_item, num_write_errors, 64); | |
1047 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_num_uncorrectable_read_errors, | |
1048 | struct btrfs_dev_replace_item, | |
1049 | num_uncorrectable_read_errors, 64); | |
1050 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_left, | |
1051 | struct btrfs_dev_replace_item, cursor_left, 64); | |
1052 | BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_right, | |
1053 | struct btrfs_dev_replace_item, cursor_right, 64); | |
1054 | ||
1055 | /* btrfs_verity_descriptor_item */ | |
1056 | BTRFS_SETGET_FUNCS(verity_descriptor_encryption, struct btrfs_verity_descriptor_item, | |
1057 | encryption, 8); | |
1058 | BTRFS_SETGET_FUNCS(verity_descriptor_size, struct btrfs_verity_descriptor_item, | |
1059 | size, 64); | |
1060 | BTRFS_SETGET_STACK_FUNCS(stack_verity_descriptor_encryption, | |
1061 | struct btrfs_verity_descriptor_item, encryption, 8); | |
1062 | BTRFS_SETGET_STACK_FUNCS(stack_verity_descriptor_size, | |
1063 | struct btrfs_verity_descriptor_item, size, 64); | |
1064 | ||
1065 | /* Cast into the data area of the leaf. */ | |
1066 | #define btrfs_item_ptr(leaf, slot, type) \ | |
8009adf3 | 1067 | ((type *)(btrfs_item_nr_offset(leaf, 0) + btrfs_item_offset(leaf, slot))) |
07e81dc9 JB |
1068 | |
1069 | #define btrfs_item_ptr_offset(leaf, slot) \ | |
8009adf3 | 1070 | ((unsigned long)(btrfs_item_nr_offset(leaf, 0) + btrfs_item_offset(leaf, slot))) |
07e81dc9 | 1071 | |
ad1ac501 | 1072 | #endif |