Commit | Line | Data |
---|---|---|
0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
7b718769 NS |
3 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 LT |
5 | */ |
6 | #ifndef __XFS_MOUNT_H__ | |
7 | #define __XFS_MOUNT_H__ | |
8 | ||
ad223e60 | 9 | struct xlog; |
1da177e4 | 10 | struct xfs_inode; |
2a82b8be | 11 | struct xfs_mru_cache; |
82fa9012 | 12 | struct xfs_ail; |
7d095257 | 13 | struct xfs_quotainfo; |
0650b554 | 14 | struct xfs_da_geometry; |
07b6403a | 15 | struct xfs_perag; |
7d095257 | 16 | |
055388a3 DC |
17 | /* dynamic preallocation free space thresholds, 5% down to 1% */ |
18 | enum { | |
19 | XFS_LOWSP_1_PCNT = 0, | |
20 | XFS_LOWSP_2_PCNT, | |
21 | XFS_LOWSP_3_PCNT, | |
22 | XFS_LOWSP_4_PCNT, | |
23 | XFS_LOWSP_5_PCNT, | |
24 | XFS_LOWSP_MAX, | |
25 | }; | |
26 | ||
192852be CM |
27 | /* |
28 | * Error Configuration | |
29 | * | |
30 | * Error classes define the subsystem the configuration belongs to. | |
31 | * Error numbers define the errors that are configurable. | |
32 | */ | |
33 | enum { | |
ffd40ef6 | 34 | XFS_ERR_METADATA, |
192852be CM |
35 | XFS_ERR_CLASS_MAX, |
36 | }; | |
37 | enum { | |
ffd40ef6 | 38 | XFS_ERR_DEFAULT, |
e0a431b3 CM |
39 | XFS_ERR_EIO, |
40 | XFS_ERR_ENOSPC, | |
41 | XFS_ERR_ENODEV, | |
192852be CM |
42 | XFS_ERR_ERRNO_MAX, |
43 | }; | |
44 | ||
a5ea70d2 CM |
45 | #define XFS_ERR_RETRY_FOREVER -1 |
46 | ||
77169812 ES |
47 | /* |
48 | * Although retry_timeout is in jiffies which is normally an unsigned long, | |
49 | * we limit the retry timeout to 86400 seconds, or one day. So even a | |
50 | * signed 32-bit long is sufficient for a HZ value up to 24855. Making it | |
51 | * signed lets us store the special "-1" value, meaning retry forever. | |
52 | */ | |
192852be CM |
53 | struct xfs_error_cfg { |
54 | struct xfs_kobj kobj; | |
55 | int max_retries; | |
77169812 | 56 | long retry_timeout; /* in jiffies, -1 = infinite */ |
192852be CM |
57 | }; |
58 | ||
ab23a776 DC |
59 | /* |
60 | * Per-cpu deferred inode inactivation GC lists. | |
61 | */ | |
62 | struct xfs_inodegc { | |
63 | struct llist_head list; | |
64 | struct work_struct work; | |
65 | ||
66 | /* approximate count of inodes in the list */ | |
67 | unsigned int items; | |
40b1de00 | 68 | unsigned int shrinker_hits; |
ab23a776 DC |
69 | }; |
70 | ||
b0dff466 DC |
71 | /* |
72 | * The struct xfsmount layout is optimised to separate read-mostly variables | |
73 | * from variables that are frequently modified. We put the read-mostly variables | |
74 | * first, then place all the other variables at the end. | |
75 | * | |
76 | * Typically, read-mostly variables are those that are set at mount time and | |
77 | * never changed again, or only change rarely as a result of things like sysfs | |
78 | * knobs being tweaked. | |
79 | */ | |
1da177e4 | 80 | typedef struct xfs_mount { |
b0dff466 | 81 | struct xfs_sb m_sb; /* copy of fs superblock */ |
b267ce99 | 82 | struct super_block *m_super; |
82fa9012 | 83 | struct xfs_ail *m_ail; /* fs active log item list */ |
1da177e4 | 84 | struct xfs_buf *m_sb_bp; /* buffer for superblock */ |
fc1f8c1c NS |
85 | char *m_rtname; /* realtime device name */ |
86 | char *m_logname; /* external log device name */ | |
0650b554 DC |
87 | struct xfs_da_geometry *m_dir_geo; /* directory block geometry */ |
88 | struct xfs_da_geometry *m_attr_geo; /* attribute block geometry */ | |
ad223e60 | 89 | struct xlog *m_log; /* log specific stuff */ |
1da177e4 LT |
90 | struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ |
91 | struct xfs_inode *m_rsumip; /* pointer to summary inode */ | |
92 | struct xfs_inode *m_rootip; /* pointer to root directory */ | |
93 | struct xfs_quotainfo *m_quotainfo; /* disk quota information */ | |
94 | xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ | |
95 | xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ | |
96 | xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ | |
0ed17f01 | 97 | struct list_head m_mount_list; /* global mount list */ |
ab23a776 DC |
98 | void __percpu *m_inodegc; /* percpu inodegc structures */ |
99 | ||
b0dff466 DC |
100 | /* |
101 | * Optional cache of rt summary level per bitmap block with the | |
102 | * invariant that m_rsum_cache[bbno] <= the minimum i for which | |
103 | * rsum[i][bbno] != 0. Reads and writes are serialized by the rsumip | |
104 | * inode lock. | |
105 | */ | |
106 | uint8_t *m_rsum_cache; | |
107 | struct xfs_mru_cache *m_filestream; /* per-mount filestream data */ | |
108 | struct workqueue_struct *m_buf_workqueue; | |
109 | struct workqueue_struct *m_unwritten_workqueue; | |
b0dff466 | 110 | struct workqueue_struct *m_reclaim_workqueue; |
b0dff466 | 111 | struct workqueue_struct *m_sync_workqueue; |
ab23a776 DC |
112 | struct workqueue_struct *m_blockgc_wq; |
113 | struct workqueue_struct *m_inodegc_wq; | |
b0dff466 DC |
114 | |
115 | int m_bsize; /* fs logical block size */ | |
c8ce540d DW |
116 | uint8_t m_blkbit_log; /* blocklog + NBBY */ |
117 | uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ | |
118 | uint8_t m_agno_log; /* log #ag's */ | |
b0dff466 | 119 | uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ |
1da177e4 LT |
120 | uint m_blockmask; /* sb_blocksize-1 */ |
121 | uint m_blockwsize; /* sb_blocksize in words */ | |
122 | uint m_blockwmask; /* blockwsize-1 */ | |
60197e8d CH |
123 | uint m_alloc_mxr[2]; /* max alloc btree records */ |
124 | uint m_alloc_mnr[2]; /* min alloc btree records */ | |
125 | uint m_bmap_dmxr[2]; /* max bmap btree records */ | |
126 | uint m_bmap_dmnr[2]; /* min bmap btree records */ | |
035e00ac DW |
127 | uint m_rmap_mxr[2]; /* max rmap btree records */ |
128 | uint m_rmap_mnr[2]; /* min rmap btree records */ | |
1946b91c DW |
129 | uint m_refc_mxr[2]; /* max refc btree records */ |
130 | uint m_refc_mnr[2]; /* min refc btree records */ | |
1da177e4 LT |
131 | uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ |
132 | uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ | |
035e00ac | 133 | uint m_rmap_maxlevels; /* max rmap btree levels */ |
1946b91c | 134 | uint m_refc_maxlevels; /* max refcount btree level */ |
8018026e | 135 | xfs_extlen_t m_ag_prealloc_blocks; /* reserved ag blocks */ |
52548852 DW |
136 | uint m_alloc_set_aside; /* space we can't use */ |
137 | uint m_ag_max_usable; /* max space per AG */ | |
b0dff466 DC |
138 | int m_dalign; /* stripe unit */ |
139 | int m_swidth; /* stripe width */ | |
140 | xfs_agnumber_t m_maxagi; /* highest inode alloc group */ | |
141 | uint m_allocsize_log;/* min write size log bytes */ | |
142 | uint m_allocsize_blocks; /* min write size blocks */ | |
143 | int m_logbufs; /* number of log buffers */ | |
144 | int m_logbsize; /* size of each log buffer */ | |
145 | uint m_rsumlevels; /* rt summary levels */ | |
146 | uint m_rsumsize; /* size of rt summary, bytes */ | |
1da177e4 | 147 | int m_fixedfsid[2]; /* unchanged for life of FS */ |
1da177e4 | 148 | uint m_qflags; /* quota status flags */ |
a1d86e8d | 149 | uint64_t m_features; /* active filesystem features */ |
65f03d86 DW |
150 | uint64_t m_low_space[XFS_LOWSP_MAX]; |
151 | uint64_t m_low_rtexts[XFS_LOWSP_MAX]; | |
b0dff466 | 152 | struct xfs_ino_geometry m_ino_geo; /* inode geometry */ |
0eadd102 | 153 | struct xfs_trans_resv m_resv; /* precomputed res values */ |
b0dff466 | 154 | /* low free space thresholds */ |
ab23a776 | 155 | unsigned long m_opstate; /* dynamic state flags */ |
b0dff466 DC |
156 | bool m_always_cow; |
157 | bool m_fail_unmount; | |
158 | bool m_finobt_nores; /* no per-AG finobt resv. */ | |
159 | bool m_update_sb; /* sb needs update in mount */ | |
160 | ||
161 | /* | |
162 | * Bitsets of per-fs metadata that have been checked and/or are sick. | |
163 | * Callers must hold m_sb_lock to access these two fields. | |
164 | */ | |
165 | uint8_t m_fs_checked; | |
166 | uint8_t m_fs_sick; | |
167 | /* | |
168 | * Bitsets of rt metadata that have been checked and/or are sick. | |
169 | * Callers must hold m_sb_lock to access this field. | |
170 | */ | |
171 | uint8_t m_rt_checked; | |
172 | uint8_t m_rt_sick; | |
173 | ||
174 | /* | |
175 | * End of read-mostly variables. Frequently written variables and locks | |
176 | * should be placed below this comment from now on. The first variable | |
177 | * here is marked as cacheline aligned so they it is separated from | |
178 | * the read-mostly variables. | |
179 | */ | |
180 | ||
181 | spinlock_t ____cacheline_aligned m_sb_lock; /* sb counter lock */ | |
182 | struct percpu_counter m_icount; /* allocated inodes counter */ | |
183 | struct percpu_counter m_ifree; /* free inodes counter */ | |
184 | struct percpu_counter m_fdblocks; /* free block counter */ | |
185 | /* | |
186 | * Count of data device blocks reserved for delayed allocations, | |
187 | * including indlen blocks. Does not include allocated CoW staging | |
188 | * extents or anything related to the rt device. | |
189 | */ | |
190 | struct percpu_counter m_delalloc_blks; | |
16eaab83 BF |
191 | /* |
192 | * Global count of allocation btree blocks in use across all AGs. Only | |
193 | * used when perag reservation is enabled. Helps prevent block | |
194 | * reservation from attempting to reserve allocation btree blocks. | |
195 | */ | |
196 | atomic64_t m_allocbt_blks; | |
b0dff466 DC |
197 | |
198 | struct radix_tree_root m_perag_tree; /* per-ag accounting info */ | |
199 | spinlock_t m_perag_lock; /* lock for m_perag_tree */ | |
c8ce540d DW |
200 | uint64_t m_resblks; /* total reserved blocks */ |
201 | uint64_t m_resblks_avail;/* available reserved blocks */ | |
202 | uint64_t m_resblks_save; /* reserved blks @ remount,ro */ | |
a7b339f1 | 203 | struct delayed_work m_reclaim_work; /* background inode reclaim */ |
a31b1d3d | 204 | struct xfs_kobj m_kobj; |
192852be | 205 | struct xfs_kobj m_error_kobj; |
ffd40ef6 | 206 | struct xfs_kobj m_error_meta_kobj; |
192852be | 207 | struct xfs_error_cfg m_error_cfg[XFS_ERR_CLASS_MAX][XFS_ERR_ERRNO_MAX]; |
225e4635 | 208 | struct xstats m_stats; /* per-fs stats */ |
b0dff466 DC |
209 | xfs_agnumber_t m_agfrotor; /* last ag where space found */ |
210 | xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ | |
211 | spinlock_t m_agirotor_lock;/* .. and lock protecting it */ | |
aa6bf01d | 212 | |
40b1de00 DW |
213 | /* Memory shrinker to throttle and reprioritize inodegc */ |
214 | struct shrinker m_inodegc_shrinker; | |
f0f7a674 DW |
215 | /* |
216 | * Workqueue item so that we can coalesce multiple inode flush attempts | |
217 | * into a single flush. | |
218 | */ | |
219 | struct work_struct m_flush_inodes_work; | |
52785112 CH |
220 | |
221 | /* | |
222 | * Generation of the filesysyem layout. This is incremented by each | |
223 | * growfs, and used by the pNFS server to ensure the client updates | |
224 | * its view of the block device once it gets a layout that might | |
225 | * reference the newly added blocks. Does not need to be persistent | |
226 | * as long as we only allow file system size increments, but if we | |
227 | * ever support shrinks it would have to be persisted in addition | |
228 | * to various other kinds of pain inflicted on the pNFS server. | |
229 | */ | |
c8ce540d | 230 | uint32_t m_generation; |
b0dff466 | 231 | struct mutex m_growlock; /* growfs mutex */ |
801cc4e1 BF |
232 | |
233 | #ifdef DEBUG | |
31965ef3 DW |
234 | /* |
235 | * Frequency with which errors are injected. Replaces xfs_etest; the | |
236 | * value stored in here is the inverse of the frequency with which the | |
237 | * error triggers. 1 = always, 2 = half the time, etc. | |
238 | */ | |
239 | unsigned int *m_errortag; | |
c6840101 | 240 | struct xfs_kobj m_errortag_kobj; |
801cc4e1 | 241 | #endif |
1da177e4 LT |
242 | } xfs_mount_t; |
243 | ||
ef325959 DW |
244 | #define M_IGEO(mp) (&(mp)->m_ino_geo) |
245 | ||
a1d86e8d DC |
246 | /* |
247 | * Flags for m_features. | |
248 | * | |
249 | * These are all the active features in the filesystem, regardless of how | |
250 | * they are configured. | |
251 | */ | |
252 | #define XFS_FEAT_ATTR (1ULL << 0) /* xattrs present in fs */ | |
253 | #define XFS_FEAT_NLINK (1ULL << 1) /* 32 bit link counts */ | |
254 | #define XFS_FEAT_QUOTA (1ULL << 2) /* quota active */ | |
255 | #define XFS_FEAT_ALIGN (1ULL << 3) /* inode alignment */ | |
256 | #define XFS_FEAT_DALIGN (1ULL << 4) /* data alignment */ | |
257 | #define XFS_FEAT_LOGV2 (1ULL << 5) /* version 2 logs */ | |
258 | #define XFS_FEAT_SECTOR (1ULL << 6) /* sector size > 512 bytes */ | |
259 | #define XFS_FEAT_EXTFLG (1ULL << 7) /* unwritten extents */ | |
260 | #define XFS_FEAT_ASCIICI (1ULL << 8) /* ASCII only case-insens. */ | |
261 | #define XFS_FEAT_LAZYSBCOUNT (1ULL << 9) /* Superblk counters */ | |
262 | #define XFS_FEAT_ATTR2 (1ULL << 10) /* dynamic attr fork */ | |
263 | #define XFS_FEAT_PARENT (1ULL << 11) /* parent pointers */ | |
264 | #define XFS_FEAT_PROJID32 (1ULL << 12) /* 32 bit project id */ | |
265 | #define XFS_FEAT_CRC (1ULL << 13) /* metadata CRCs */ | |
266 | #define XFS_FEAT_V3INODES (1ULL << 14) /* Version 3 inodes */ | |
267 | #define XFS_FEAT_PQUOTINO (1ULL << 15) /* non-shared proj/grp quotas */ | |
268 | #define XFS_FEAT_FTYPE (1ULL << 16) /* inode type in dir */ | |
269 | #define XFS_FEAT_FINOBT (1ULL << 17) /* free inode btree */ | |
270 | #define XFS_FEAT_RMAPBT (1ULL << 18) /* reverse map btree */ | |
271 | #define XFS_FEAT_REFLINK (1ULL << 19) /* reflinked files */ | |
272 | #define XFS_FEAT_SPINODES (1ULL << 20) /* sparse inode chunks */ | |
273 | #define XFS_FEAT_META_UUID (1ULL << 21) /* metadata UUID */ | |
274 | #define XFS_FEAT_REALTIME (1ULL << 22) /* realtime device present */ | |
275 | #define XFS_FEAT_INOBTCNT (1ULL << 23) /* inobt block counts */ | |
276 | #define XFS_FEAT_BIGTIME (1ULL << 24) /* large timestamps */ | |
277 | #define XFS_FEAT_NEEDSREPAIR (1ULL << 25) /* needs xfs_repair */ | |
278 | ||
8970a5b8 DC |
279 | /* Mount features */ |
280 | #define XFS_FEAT_NOATTR2 (1ULL << 48) /* disable attr2 creation */ | |
281 | #define XFS_FEAT_NOALIGN (1ULL << 49) /* ignore alignment */ | |
282 | #define XFS_FEAT_ALLOCSIZE (1ULL << 50) /* user specified allocation size */ | |
283 | #define XFS_FEAT_LARGE_IOSIZE (1ULL << 51) /* report large preferred | |
284 | * I/O size in stat() */ | |
285 | #define XFS_FEAT_WSYNC (1ULL << 52) /* synchronous metadata ops */ | |
286 | #define XFS_FEAT_DIRSYNC (1ULL << 53) /* synchronous directory ops */ | |
287 | #define XFS_FEAT_DISCARD (1ULL << 54) /* discard unused blocks */ | |
288 | #define XFS_FEAT_GRPID (1ULL << 55) /* group-ID assigned from directory */ | |
289 | #define XFS_FEAT_SMALL_INUMS (1ULL << 56) /* user wants 32bit inodes */ | |
290 | #define XFS_FEAT_IKEEP (1ULL << 57) /* keep empty inode clusters*/ | |
291 | #define XFS_FEAT_SWALLOC (1ULL << 58) /* stripe width allocation */ | |
292 | #define XFS_FEAT_FILESTREAMS (1ULL << 59) /* use filestreams allocator */ | |
293 | #define XFS_FEAT_DAX_ALWAYS (1ULL << 60) /* DAX always enabled */ | |
294 | #define XFS_FEAT_DAX_NEVER (1ULL << 61) /* DAX never enabled */ | |
295 | #define XFS_FEAT_NORECOVERY (1ULL << 62) /* no recovery - dirty fs */ | |
296 | #define XFS_FEAT_NOUUID (1ULL << 63) /* ignore uuid during mount */ | |
297 | ||
a1d86e8d DC |
298 | #define __XFS_HAS_FEAT(name, NAME) \ |
299 | static inline bool xfs_has_ ## name (struct xfs_mount *mp) \ | |
300 | { \ | |
301 | return mp->m_features & XFS_FEAT_ ## NAME; \ | |
302 | } | |
303 | ||
304 | /* Some features can be added dynamically so they need a set wrapper, too. */ | |
305 | #define __XFS_ADD_FEAT(name, NAME) \ | |
306 | __XFS_HAS_FEAT(name, NAME); \ | |
307 | static inline void xfs_add_ ## name (struct xfs_mount *mp) \ | |
308 | { \ | |
309 | mp->m_features |= XFS_FEAT_ ## NAME; \ | |
310 | xfs_sb_version_add ## name(&mp->m_sb); \ | |
311 | } | |
312 | ||
8970a5b8 | 313 | /* Superblock features */ |
a1d86e8d DC |
314 | __XFS_ADD_FEAT(attr, ATTR) |
315 | __XFS_HAS_FEAT(nlink, NLINK) | |
316 | __XFS_ADD_FEAT(quota, QUOTA) | |
317 | __XFS_HAS_FEAT(align, ALIGN) | |
318 | __XFS_HAS_FEAT(dalign, DALIGN) | |
319 | __XFS_HAS_FEAT(logv2, LOGV2) | |
320 | __XFS_HAS_FEAT(sector, SECTOR) | |
321 | __XFS_HAS_FEAT(extflg, EXTFLG) | |
322 | __XFS_HAS_FEAT(asciici, ASCIICI) | |
323 | __XFS_HAS_FEAT(lazysbcount, LAZYSBCOUNT) | |
324 | __XFS_ADD_FEAT(attr2, ATTR2) | |
325 | __XFS_HAS_FEAT(parent, PARENT) | |
326 | __XFS_ADD_FEAT(projid32, PROJID32) | |
327 | __XFS_HAS_FEAT(crc, CRC) | |
328 | __XFS_HAS_FEAT(v3inodes, V3INODES) | |
329 | __XFS_HAS_FEAT(pquotino, PQUOTINO) | |
330 | __XFS_HAS_FEAT(ftype, FTYPE) | |
331 | __XFS_HAS_FEAT(finobt, FINOBT) | |
332 | __XFS_HAS_FEAT(rmapbt, RMAPBT) | |
333 | __XFS_HAS_FEAT(reflink, REFLINK) | |
334 | __XFS_HAS_FEAT(sparseinodes, SPINODES) | |
335 | __XFS_HAS_FEAT(metauuid, META_UUID) | |
336 | __XFS_HAS_FEAT(realtime, REALTIME) | |
38c26bfd DC |
337 | __XFS_HAS_FEAT(inobtcounts, INOBTCNT) |
338 | __XFS_HAS_FEAT(bigtime, BIGTIME) | |
339 | __XFS_HAS_FEAT(needsrepair, NEEDSREPAIR) | |
a1d86e8d | 340 | |
8970a5b8 DC |
341 | /* |
342 | * Mount features | |
343 | * | |
2e973b2c DC |
344 | * These do not change dynamically - features that can come and go, such as 32 |
345 | * bit inodes and read-only state, are kept as operational state rather than | |
8970a5b8 DC |
346 | * features. |
347 | */ | |
348 | __XFS_HAS_FEAT(noattr2, NOATTR2) | |
349 | __XFS_HAS_FEAT(noalign, NOALIGN) | |
350 | __XFS_HAS_FEAT(allocsize, ALLOCSIZE) | |
351 | __XFS_HAS_FEAT(large_iosize, LARGE_IOSIZE) | |
352 | __XFS_HAS_FEAT(wsync, WSYNC) | |
353 | __XFS_HAS_FEAT(dirsync, DIRSYNC) | |
354 | __XFS_HAS_FEAT(discard, DISCARD) | |
355 | __XFS_HAS_FEAT(grpid, GRPID) | |
356 | __XFS_HAS_FEAT(small_inums, SMALL_INUMS) | |
357 | __XFS_HAS_FEAT(ikeep, IKEEP) | |
358 | __XFS_HAS_FEAT(swalloc, SWALLOC) | |
359 | __XFS_HAS_FEAT(filestreams, FILESTREAMS) | |
360 | __XFS_HAS_FEAT(dax_always, DAX_ALWAYS) | |
361 | __XFS_HAS_FEAT(dax_never, DAX_NEVER) | |
362 | __XFS_HAS_FEAT(norecovery, NORECOVERY) | |
363 | __XFS_HAS_FEAT(nouuid, NOUUID) | |
364 | ||
1da177e4 | 365 | /* |
2e973b2c DC |
366 | * Operational mount state flags |
367 | * | |
368 | * Use these with atomic bit ops only! | |
1da177e4 | 369 | */ |
2e973b2c DC |
370 | #define XFS_OPSTATE_UNMOUNTING 0 /* filesystem is unmounting */ |
371 | #define XFS_OPSTATE_CLEAN 1 /* mount was clean */ | |
372 | #define XFS_OPSTATE_SHUTDOWN 2 /* stop all fs operations */ | |
373 | #define XFS_OPSTATE_INODE32 3 /* inode32 allocator active */ | |
374 | #define XFS_OPSTATE_READONLY 4 /* read-only fs */ | |
cbe4dab1 | 375 | |
ab23a776 DC |
376 | /* |
377 | * If set, inactivation worker threads will be scheduled to process queued | |
378 | * inodegc work. If not, queued inodes remain in memory waiting to be | |
379 | * processed. | |
380 | */ | |
2e973b2c | 381 | #define XFS_OPSTATE_INODEGC_ENABLED 5 |
6f649091 DW |
382 | /* |
383 | * If set, background speculative prealloc gc worker threads will be scheduled | |
384 | * to process queued blockgc work. If not, inodes retain their preallocations | |
385 | * until explicitly deleted. | |
386 | */ | |
2e973b2c | 387 | #define XFS_OPSTATE_BLOCKGC_ENABLED 6 |
ab23a776 DC |
388 | |
389 | #define __XFS_IS_OPSTATE(name, NAME) \ | |
390 | static inline bool xfs_is_ ## name (struct xfs_mount *mp) \ | |
391 | { \ | |
392 | return test_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \ | |
393 | } \ | |
394 | static inline bool xfs_clear_ ## name (struct xfs_mount *mp) \ | |
395 | { \ | |
396 | return test_and_clear_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \ | |
397 | } \ | |
398 | static inline bool xfs_set_ ## name (struct xfs_mount *mp) \ | |
399 | { \ | |
400 | return test_and_set_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \ | |
401 | } | |
402 | ||
2e973b2c DC |
403 | __XFS_IS_OPSTATE(unmounting, UNMOUNTING) |
404 | __XFS_IS_OPSTATE(clean, CLEAN) | |
405 | __XFS_IS_OPSTATE(shutdown, SHUTDOWN) | |
406 | __XFS_IS_OPSTATE(inode32, INODE32) | |
407 | __XFS_IS_OPSTATE(readonly, READONLY) | |
ab23a776 | 408 | __XFS_IS_OPSTATE(inodegc_enabled, INODEGC_ENABLED) |
6f649091 | 409 | __XFS_IS_OPSTATE(blockgc_enabled, BLOCKGC_ENABLED) |
ab23a776 DC |
410 | |
411 | #define XFS_OPSTATE_STRINGS \ | |
2e973b2c DC |
412 | { (1UL << XFS_OPSTATE_UNMOUNTING), "unmounting" }, \ |
413 | { (1UL << XFS_OPSTATE_CLEAN), "clean" }, \ | |
414 | { (1UL << XFS_OPSTATE_SHUTDOWN), "shutdown" }, \ | |
415 | { (1UL << XFS_OPSTATE_INODE32), "inode32" }, \ | |
416 | { (1UL << XFS_OPSTATE_READONLY), "read_only" }, \ | |
6f649091 DW |
417 | { (1UL << XFS_OPSTATE_INODEGC_ENABLED), "inodegc" }, \ |
418 | { (1UL << XFS_OPSTATE_BLOCKGC_ENABLED), "blockgc" } | |
ab23a776 | 419 | |
1da177e4 | 420 | /* |
1f443ad7 NS |
421 | * Max and min values for mount-option defined I/O |
422 | * preallocation sizes. | |
1da177e4 | 423 | */ |
1f443ad7 | 424 | #define XFS_MAX_IO_LOG 30 /* 1G */ |
1da177e4 LT |
425 | #define XFS_MIN_IO_LOG PAGE_SHIFT |
426 | ||
75c8c50f | 427 | #define xfs_is_shutdown(mp) xfs_is_shutdown(mp) |
745f6919 CH |
428 | void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname, |
429 | int lnnum); | |
1da177e4 | 430 | #define xfs_force_shutdown(m,f) \ |
745f6919 | 431 | xfs_do_force_shutdown(m, f, __FILE__, __LINE__) |
1da177e4 | 432 | |
2b5decd0 CH |
433 | #define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ |
434 | #define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ | |
435 | #define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */ | |
436 | #define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */ | |
2b5decd0 | 437 | |
7f89c838 DW |
438 | #define XFS_SHUTDOWN_STRINGS \ |
439 | { SHUTDOWN_META_IO_ERROR, "metadata_io" }, \ | |
440 | { SHUTDOWN_LOG_IO_ERROR, "log_io" }, \ | |
441 | { SHUTDOWN_FORCE_UMOUNT, "force_umount" }, \ | |
442 | { SHUTDOWN_CORRUPT_INCORE, "corruption" } | |
443 | ||
1da177e4 LT |
444 | /* |
445 | * Flags for xfs_mountfs | |
446 | */ | |
764d1f89 | 447 | #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */ |
1da177e4 | 448 | |
a844f451 NS |
449 | static inline xfs_agnumber_t |
450 | xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 451 | { |
4f1adf33 | 452 | xfs_rfsblock_t ld = XFS_BB_TO_FSBT(mp, d); |
a844f451 NS |
453 | do_div(ld, mp->m_sb.sb_agblocks); |
454 | return (xfs_agnumber_t) ld; | |
1da177e4 LT |
455 | } |
456 | ||
a844f451 NS |
457 | static inline xfs_agblock_t |
458 | xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 459 | { |
4f1adf33 | 460 | xfs_rfsblock_t ld = XFS_BB_TO_FSBT(mp, d); |
a844f451 | 461 | return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks); |
1da177e4 LT |
462 | } |
463 | ||
07b6403a DC |
464 | int xfs_buf_hash_init(struct xfs_perag *pag); |
465 | void xfs_buf_hash_destroy(struct xfs_perag *pag); | |
6031e73a | 466 | |
af3b6382 | 467 | extern void xfs_uuid_table_free(void); |
c8ce540d | 468 | extern uint64_t xfs_default_resblks(xfs_mount_t *mp); |
4249023a | 469 | extern int xfs_mountfs(xfs_mount_t *mp); |
41b5c2e7 | 470 | extern void xfs_unmountfs(xfs_mount_t *); |
964aa8d9 | 471 | |
7d6f07d2 DW |
472 | /* |
473 | * Deltas for the block count can vary from 1 to very large, but lock contention | |
474 | * only occurs on frequent small block count updates such as in the delayed | |
475 | * allocation path for buffered writes (page a time updates). Hence we set | |
476 | * a large batch count (1024) to minimise global counter updates except when | |
477 | * we get near to ENOSPC and we have to be very accurate with our updates. | |
478 | */ | |
479 | #define XFS_FDBLOCKS_BATCH 1024 | |
480 | ||
0d485ada DC |
481 | extern int xfs_mod_fdblocks(struct xfs_mount *mp, int64_t delta, |
482 | bool reserved); | |
bab98bbe DC |
483 | extern int xfs_mod_frextents(struct xfs_mount *mp, int64_t delta); |
484 | ||
764d1f89 | 485 | extern int xfs_readsb(xfs_mount_t *, int); |
1da177e4 | 486 | extern void xfs_freesb(xfs_mount_t *); |
91ee575f | 487 | extern bool xfs_fs_writable(struct xfs_mount *mp, int level); |
c8ce540d | 488 | extern int xfs_sb_validate_fsb_count(struct xfs_sb *, uint64_t); |
1da177e4 | 489 | |
d7658d48 CH |
490 | extern int xfs_dev_is_read_only(struct xfs_mount *, char *); |
491 | ||
055388a3 DC |
492 | extern void xfs_set_low_space_thresholds(struct xfs_mount *); |
493 | ||
3fbbbea3 DC |
494 | int xfs_zero_extent(struct xfs_inode *ip, xfs_fsblock_t start_fsb, |
495 | xfs_off_t count_fsb); | |
496 | ||
df309390 CM |
497 | struct xfs_error_cfg * xfs_error_get_cfg(struct xfs_mount *mp, |
498 | int error_class, int error); | |
f467cad9 | 499 | void xfs_force_summary_recalc(struct xfs_mount *mp); |
908ce71e DW |
500 | int xfs_add_incompat_log_feature(struct xfs_mount *mp, uint32_t feature); |
501 | bool xfs_clear_incompat_log_features(struct xfs_mount *mp); | |
9fe82b8c | 502 | void xfs_mod_delalloc(struct xfs_mount *mp, int64_t delta); |
df309390 | 503 | |
1da177e4 | 504 | #endif /* __XFS_MOUNT_H__ */ |