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Commit | Line | Data |
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5b316468 NA |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | ||
3 | #ifndef BTRFS_ZONED_H | |
4 | #define BTRFS_ZONED_H | |
5 | ||
6 | #include <linux/types.h> | |
b70f5097 | 7 | #include <linux/blkdev.h> |
12659251 NA |
8 | #include "volumes.h" |
9 | #include "disk-io.h" | |
40ab3be1 | 10 | #include "block-group.h" |
869f4cdc | 11 | #include "btrfs_inode.h" |
5b316468 | 12 | |
bb5a098d | 13 | #define BTRFS_DEFAULT_RECLAIM_THRESH (75) |
18bb8bbf | 14 | |
5b316468 NA |
15 | struct btrfs_zoned_device_info { |
16 | /* | |
17 | * Number of zones, zone size and types of zones if bdev is a | |
18 | * zoned block device. | |
19 | */ | |
20 | u64 zone_size; | |
21 | u8 zone_size_shift; | |
c2ae7b77 | 22 | u64 max_zone_append_size; |
5b316468 | 23 | u32 nr_zones; |
ea6f8ddc NA |
24 | unsigned int max_active_zones; |
25 | atomic_t active_zones_left; | |
5b316468 NA |
26 | unsigned long *seq_zones; |
27 | unsigned long *empty_zones; | |
ea6f8ddc | 28 | unsigned long *active_zones; |
16beac87 | 29 | struct blk_zone *zone_cache; |
12659251 | 30 | struct blk_zone sb_zones[2 * BTRFS_SUPER_MIRROR_MAX]; |
5b316468 NA |
31 | }; |
32 | ||
33 | #ifdef CONFIG_BLK_DEV_ZONED | |
34 | int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, | |
35 | struct blk_zone *zone); | |
73651042 | 36 | int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info); |
16beac87 | 37 | int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache); |
5b316468 | 38 | void btrfs_destroy_dev_zone_info(struct btrfs_device *device); |
b70f5097 | 39 | int btrfs_check_zoned_mode(struct btrfs_fs_info *fs_info); |
5d1ab66c | 40 | int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info); |
12659251 NA |
41 | int btrfs_sb_log_location_bdev(struct block_device *bdev, int mirror, int rw, |
42 | u64 *bytenr_ret); | |
43 | int btrfs_sb_log_location(struct btrfs_device *device, int mirror, int rw, | |
44 | u64 *bytenr_ret); | |
8376d9e1 | 45 | int btrfs_advance_sb_log(struct btrfs_device *device, int mirror); |
12659251 | 46 | int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror); |
1cd6121f NA |
47 | u64 btrfs_find_allocatable_zones(struct btrfs_device *device, u64 hole_start, |
48 | u64 hole_end, u64 num_bytes); | |
49 | int btrfs_reset_device_zone(struct btrfs_device *device, u64 physical, | |
50 | u64 length, u64 *bytes); | |
51 | int btrfs_ensure_empty_zones(struct btrfs_device *device, u64 start, u64 size); | |
a94794d5 | 52 | int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new); |
169e0da9 | 53 | void btrfs_calc_zone_unusable(struct btrfs_block_group *cache); |
d3575156 NA |
54 | void btrfs_redirty_list_add(struct btrfs_transaction *trans, |
55 | struct extent_buffer *eb); | |
56 | void btrfs_free_redirty_list(struct btrfs_transaction *trans); | |
e380adfc | 57 | bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start); |
d8e3fb10 NA |
58 | void btrfs_record_physical_zoned(struct inode *inode, u64 file_offset, |
59 | struct bio *bio); | |
60 | void btrfs_rewrite_logical_zoned(struct btrfs_ordered_extent *ordered); | |
0bc09ca1 NA |
61 | bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info, |
62 | struct extent_buffer *eb, | |
63 | struct btrfs_block_group **cache_ret); | |
64 | void btrfs_revert_meta_write_pointer(struct btrfs_block_group *cache, | |
65 | struct extent_buffer *eb); | |
de17addc | 66 | int btrfs_zoned_issue_zeroout(struct btrfs_device *device, u64 physical, u64 length); |
7db1c5d1 NA |
67 | int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, u64 logical, |
68 | u64 physical_start, u64 physical_pos); | |
e7ff9e6b JT |
69 | struct btrfs_device *btrfs_zoned_get_device(struct btrfs_fs_info *fs_info, |
70 | u64 logical, u64 length); | |
afba2bc0 NA |
71 | bool btrfs_zone_activate(struct btrfs_block_group *block_group); |
72 | int btrfs_zone_finish(struct btrfs_block_group *block_group); | |
82187d2e | 73 | bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags); |
be1a1d7a NA |
74 | void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, u64 logical, |
75 | u64 length); | |
56fbb0a4 NA |
76 | void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg, |
77 | struct extent_buffer *eb); | |
c2707a25 | 78 | void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg); |
16beac87 | 79 | void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info); |
3687fcb0 | 80 | bool btrfs_zoned_should_reclaim(struct btrfs_fs_info *fs_info); |
343d8a30 NA |
81 | void btrfs_zoned_release_data_reloc_bg(struct btrfs_fs_info *fs_info, u64 logical, |
82 | u64 length); | |
393f646e | 83 | int btrfs_zone_finish_one_bg(struct btrfs_fs_info *fs_info); |
b0931513 NA |
84 | int btrfs_zoned_activate_one_bg(struct btrfs_fs_info *fs_info, |
85 | struct btrfs_space_info *space_info, bool do_finish); | |
5b316468 NA |
86 | #else /* CONFIG_BLK_DEV_ZONED */ |
87 | static inline int btrfs_get_dev_zone(struct btrfs_device *device, u64 pos, | |
88 | struct blk_zone *zone) | |
89 | { | |
90 | return 0; | |
91 | } | |
92 | ||
73651042 NA |
93 | static inline int btrfs_get_dev_zone_info_all_devices(struct btrfs_fs_info *fs_info) |
94 | { | |
95 | return 0; | |
96 | } | |
97 | ||
16beac87 NA |
98 | static inline int btrfs_get_dev_zone_info(struct btrfs_device *device, |
99 | bool populate_cache) | |
5b316468 NA |
100 | { |
101 | return 0; | |
102 | } | |
103 | ||
104 | static inline void btrfs_destroy_dev_zone_info(struct btrfs_device *device) { } | |
105 | ||
b70f5097 NA |
106 | static inline int btrfs_check_zoned_mode(const struct btrfs_fs_info *fs_info) |
107 | { | |
108 | if (!btrfs_is_zoned(fs_info)) | |
109 | return 0; | |
110 | ||
111 | btrfs_err(fs_info, "zoned block devices support is not enabled"); | |
112 | return -EOPNOTSUPP; | |
113 | } | |
114 | ||
5d1ab66c NA |
115 | static inline int btrfs_check_mountopts_zoned(struct btrfs_fs_info *info) |
116 | { | |
117 | return 0; | |
118 | } | |
119 | ||
12659251 NA |
120 | static inline int btrfs_sb_log_location_bdev(struct block_device *bdev, |
121 | int mirror, int rw, u64 *bytenr_ret) | |
122 | { | |
123 | *bytenr_ret = btrfs_sb_offset(mirror); | |
124 | return 0; | |
125 | } | |
126 | ||
127 | static inline int btrfs_sb_log_location(struct btrfs_device *device, int mirror, | |
128 | int rw, u64 *bytenr_ret) | |
129 | { | |
130 | *bytenr_ret = btrfs_sb_offset(mirror); | |
131 | return 0; | |
132 | } | |
133 | ||
8376d9e1 NA |
134 | static inline int btrfs_advance_sb_log(struct btrfs_device *device, int mirror) |
135 | { | |
136 | return 0; | |
137 | } | |
12659251 NA |
138 | |
139 | static inline int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror) | |
140 | { | |
141 | return 0; | |
142 | } | |
143 | ||
1cd6121f NA |
144 | static inline u64 btrfs_find_allocatable_zones(struct btrfs_device *device, |
145 | u64 hole_start, u64 hole_end, | |
146 | u64 num_bytes) | |
147 | { | |
148 | return hole_start; | |
149 | } | |
150 | ||
151 | static inline int btrfs_reset_device_zone(struct btrfs_device *device, | |
152 | u64 physical, u64 length, u64 *bytes) | |
153 | { | |
154 | *bytes = 0; | |
155 | return 0; | |
156 | } | |
157 | ||
158 | static inline int btrfs_ensure_empty_zones(struct btrfs_device *device, | |
159 | u64 start, u64 size) | |
160 | { | |
161 | return 0; | |
162 | } | |
163 | ||
08e11a3d | 164 | static inline int btrfs_load_block_group_zone_info( |
a94794d5 | 165 | struct btrfs_block_group *cache, bool new) |
08e11a3d NA |
166 | { |
167 | return 0; | |
168 | } | |
169 | ||
169e0da9 NA |
170 | static inline void btrfs_calc_zone_unusable(struct btrfs_block_group *cache) { } |
171 | ||
d3575156 NA |
172 | static inline void btrfs_redirty_list_add(struct btrfs_transaction *trans, |
173 | struct extent_buffer *eb) { } | |
174 | static inline void btrfs_free_redirty_list(struct btrfs_transaction *trans) { } | |
175 | ||
e380adfc | 176 | static inline bool btrfs_use_zone_append(struct btrfs_inode *inode, u64 start) |
08f45559 JT |
177 | { |
178 | return false; | |
179 | } | |
d8e3fb10 NA |
180 | |
181 | static inline void btrfs_record_physical_zoned(struct inode *inode, | |
182 | u64 file_offset, struct bio *bio) | |
183 | { | |
184 | } | |
185 | ||
186 | static inline void btrfs_rewrite_logical_zoned( | |
187 | struct btrfs_ordered_extent *ordered) { } | |
188 | ||
0bc09ca1 NA |
189 | static inline bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info, |
190 | struct extent_buffer *eb, | |
191 | struct btrfs_block_group **cache_ret) | |
192 | { | |
193 | return true; | |
194 | } | |
195 | ||
196 | static inline void btrfs_revert_meta_write_pointer( | |
197 | struct btrfs_block_group *cache, | |
198 | struct extent_buffer *eb) | |
199 | { | |
200 | } | |
201 | ||
de17addc NA |
202 | static inline int btrfs_zoned_issue_zeroout(struct btrfs_device *device, |
203 | u64 physical, u64 length) | |
204 | { | |
205 | return -EOPNOTSUPP; | |
206 | } | |
207 | ||
7db1c5d1 NA |
208 | static inline int btrfs_sync_zone_write_pointer(struct btrfs_device *tgt_dev, |
209 | u64 logical, u64 physical_start, | |
210 | u64 physical_pos) | |
211 | { | |
212 | return -EOPNOTSUPP; | |
213 | } | |
214 | ||
e7ff9e6b JT |
215 | static inline struct btrfs_device *btrfs_zoned_get_device( |
216 | struct btrfs_fs_info *fs_info, | |
217 | u64 logical, u64 length) | |
218 | { | |
219 | return ERR_PTR(-EOPNOTSUPP); | |
220 | } | |
221 | ||
afba2bc0 NA |
222 | static inline bool btrfs_zone_activate(struct btrfs_block_group *block_group) |
223 | { | |
224 | return true; | |
225 | } | |
226 | ||
227 | static inline int btrfs_zone_finish(struct btrfs_block_group *block_group) | |
228 | { | |
229 | return 0; | |
230 | } | |
231 | ||
a85f05e5 | 232 | static inline bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, |
82187d2e | 233 | u64 flags) |
a85f05e5 NA |
234 | { |
235 | return true; | |
236 | } | |
237 | ||
be1a1d7a NA |
238 | static inline void btrfs_zone_finish_endio(struct btrfs_fs_info *fs_info, |
239 | u64 logical, u64 length) { } | |
240 | ||
56fbb0a4 NA |
241 | static inline void btrfs_schedule_zone_finish_bg(struct btrfs_block_group *bg, |
242 | struct extent_buffer *eb) { } | |
243 | ||
c2707a25 JT |
244 | static inline void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg) { } |
245 | ||
16beac87 | 246 | static inline void btrfs_free_zone_cache(struct btrfs_fs_info *fs_info) { } |
3687fcb0 JT |
247 | |
248 | static inline bool btrfs_zoned_should_reclaim(struct btrfs_fs_info *fs_info) | |
249 | { | |
250 | return false; | |
251 | } | |
343d8a30 NA |
252 | |
253 | static inline void btrfs_zoned_release_data_reloc_bg(struct btrfs_fs_info *fs_info, | |
254 | u64 logical, u64 length) { } | |
393f646e NA |
255 | |
256 | static inline int btrfs_zone_finish_one_bg(struct btrfs_fs_info *fs_info) | |
257 | { | |
258 | return 1; | |
259 | } | |
260 | ||
b0931513 NA |
261 | static inline int btrfs_zoned_activate_one_bg(struct btrfs_fs_info *fs_info, |
262 | struct btrfs_space_info *space_info, | |
263 | bool do_finish) | |
264 | { | |
265 | /* Consider all the block groups are active */ | |
266 | return 0; | |
267 | } | |
268 | ||
5b316468 NA |
269 | #endif |
270 | ||
271 | static inline bool btrfs_dev_is_sequential(struct btrfs_device *device, u64 pos) | |
272 | { | |
273 | struct btrfs_zoned_device_info *zone_info = device->zone_info; | |
274 | ||
275 | if (!zone_info) | |
276 | return false; | |
277 | ||
278 | return test_bit(pos >> zone_info->zone_size_shift, zone_info->seq_zones); | |
279 | } | |
280 | ||
281 | static inline bool btrfs_dev_is_empty_zone(struct btrfs_device *device, u64 pos) | |
282 | { | |
283 | struct btrfs_zoned_device_info *zone_info = device->zone_info; | |
284 | ||
285 | if (!zone_info) | |
286 | return true; | |
287 | ||
288 | return test_bit(pos >> zone_info->zone_size_shift, zone_info->empty_zones); | |
289 | } | |
290 | ||
291 | static inline void btrfs_dev_set_empty_zone_bit(struct btrfs_device *device, | |
292 | u64 pos, bool set) | |
293 | { | |
294 | struct btrfs_zoned_device_info *zone_info = device->zone_info; | |
295 | unsigned int zno; | |
296 | ||
297 | if (!zone_info) | |
298 | return; | |
299 | ||
300 | zno = pos >> zone_info->zone_size_shift; | |
301 | if (set) | |
302 | set_bit(zno, zone_info->empty_zones); | |
303 | else | |
304 | clear_bit(zno, zone_info->empty_zones); | |
305 | } | |
306 | ||
307 | static inline void btrfs_dev_set_zone_empty(struct btrfs_device *device, u64 pos) | |
308 | { | |
309 | btrfs_dev_set_empty_zone_bit(device, pos, true); | |
310 | } | |
311 | ||
312 | static inline void btrfs_dev_clear_zone_empty(struct btrfs_device *device, u64 pos) | |
313 | { | |
314 | btrfs_dev_set_empty_zone_bit(device, pos, false); | |
315 | } | |
316 | ||
b70f5097 NA |
317 | static inline bool btrfs_check_device_zone_type(const struct btrfs_fs_info *fs_info, |
318 | struct block_device *bdev) | |
319 | { | |
b70f5097 | 320 | if (btrfs_is_zoned(fs_info)) { |
3c9daa09 JT |
321 | /* |
322 | * We can allow a regular device on a zoned filesystem, because | |
323 | * we will emulate the zoned capabilities. | |
324 | */ | |
325 | if (!bdev_is_zoned(bdev)) | |
326 | return true; | |
327 | ||
328 | return fs_info->zone_size == | |
329 | (bdev_zone_sectors(bdev) << SECTOR_SHIFT); | |
b70f5097 NA |
330 | } |
331 | ||
332 | /* Do not allow Host Manged zoned device */ | |
333 | return bdev_zoned_model(bdev) != BLK_ZONED_HM; | |
334 | } | |
335 | ||
12659251 NA |
336 | static inline bool btrfs_check_super_location(struct btrfs_device *device, u64 pos) |
337 | { | |
338 | /* | |
339 | * On a non-zoned device, any address is OK. On a zoned device, | |
340 | * non-SEQUENTIAL WRITE REQUIRED zones are capable. | |
341 | */ | |
342 | return device->zone_info == NULL || !btrfs_dev_is_sequential(device, pos); | |
343 | } | |
344 | ||
dcba6e48 NA |
345 | static inline bool btrfs_can_zone_reset(struct btrfs_device *device, |
346 | u64 physical, u64 length) | |
347 | { | |
348 | u64 zone_size; | |
349 | ||
350 | if (!btrfs_dev_is_sequential(device, physical)) | |
351 | return false; | |
352 | ||
353 | zone_size = device->zone_info->zone_size; | |
354 | if (!IS_ALIGNED(physical, zone_size) || !IS_ALIGNED(length, zone_size)) | |
355 | return false; | |
356 | ||
357 | return true; | |
358 | } | |
359 | ||
0bc09ca1 NA |
360 | static inline void btrfs_zoned_meta_io_lock(struct btrfs_fs_info *fs_info) |
361 | { | |
362 | if (!btrfs_is_zoned(fs_info)) | |
363 | return; | |
364 | mutex_lock(&fs_info->zoned_meta_io_lock); | |
365 | } | |
366 | ||
367 | static inline void btrfs_zoned_meta_io_unlock(struct btrfs_fs_info *fs_info) | |
368 | { | |
369 | if (!btrfs_is_zoned(fs_info)) | |
370 | return; | |
371 | mutex_unlock(&fs_info->zoned_meta_io_lock); | |
372 | } | |
373 | ||
40ab3be1 NA |
374 | static inline void btrfs_clear_treelog_bg(struct btrfs_block_group *bg) |
375 | { | |
376 | struct btrfs_fs_info *fs_info = bg->fs_info; | |
377 | ||
378 | if (!btrfs_is_zoned(fs_info)) | |
379 | return; | |
380 | ||
381 | spin_lock(&fs_info->treelog_bg_lock); | |
382 | if (fs_info->treelog_bg == bg->start) | |
383 | fs_info->treelog_bg = 0; | |
384 | spin_unlock(&fs_info->treelog_bg_lock); | |
385 | } | |
386 | ||
869f4cdc JT |
387 | static inline void btrfs_zoned_data_reloc_lock(struct btrfs_inode *inode) |
388 | { | |
389 | struct btrfs_root *root = inode->root; | |
390 | ||
391 | if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info)) | |
5f0addf7 | 392 | mutex_lock(&root->fs_info->zoned_data_reloc_io_lock); |
869f4cdc JT |
393 | } |
394 | ||
395 | static inline void btrfs_zoned_data_reloc_unlock(struct btrfs_inode *inode) | |
396 | { | |
397 | struct btrfs_root *root = inode->root; | |
398 | ||
399 | if (btrfs_is_data_reloc_root(root) && btrfs_is_zoned(root->fs_info)) | |
5f0addf7 | 400 | mutex_unlock(&root->fs_info->zoned_data_reloc_io_lock); |
869f4cdc JT |
401 | } |
402 | ||
1bfd4767 NA |
403 | static inline bool btrfs_zoned_bg_is_full(const struct btrfs_block_group *bg) |
404 | { | |
405 | ASSERT(btrfs_is_zoned(bg->fs_info)); | |
406 | return (bg->alloc_offset == bg->zone_capacity); | |
407 | } | |
408 | ||
5b316468 | 409 | #endif |