1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18#ifndef __XFS_MOUNT_H__
19#define __XFS_MOUNT_H__
20
21typedef struct xfs_trans_reservations {
22 uint tr_write;
23 uint tr_itruncate;
24 uint tr_rename;
25 uint tr_link;
26 uint tr_remove;
27 uint tr_symlink;
28 uint tr_create;
29 uint tr_mkdir;
30 uint tr_ifree;
31 uint tr_ichange;
32 uint tr_growdata;
33 uint tr_swrite;
34 uint tr_addafork;
35 uint tr_writeid;
36 uint tr_attrinval;
37 uint tr_attrsetm;
38 uint tr_attrsetrt;
39 uint tr_attrrm;
40 uint tr_clearagi;
41 uint tr_growrtalloc;
42 uint tr_growrtzero;
43 uint tr_growrtfree;
44 uint tr_qm_sbchange;
45 uint tr_qm_setqlim;
46 uint tr_qm_dqalloc;
47 uint tr_qm_quotaoff;
48 uint tr_qm_equotaoff;
49 uint tr_sb;
50} xfs_trans_reservations_t;
51
52#ifndef __KERNEL__
53
54#define xfs_daddr_to_agno(mp,d) \
55 ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks))
56#define xfs_daddr_to_agbno(mp,d) \
57 ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks))
58
59#else
60
61struct xlog;
62struct xfs_inode;
63struct xfs_mru_cache;
64struct xfs_nameops;
65struct xfs_ail;
66struct xfs_quotainfo;
67
68#ifdef HAVE_PERCPU_SB
69
70
71
72
73
74
75
76
77typedef struct xfs_icsb_cnts {
78 uint64_t icsb_fdblocks;
79 uint64_t icsb_ifree;
80 uint64_t icsb_icount;
81 unsigned long icsb_flags;
82} xfs_icsb_cnts_t;
83
84#define XFS_ICSB_FLAG_LOCK (1 << 0)
85
86#define XFS_ICSB_LAZY_COUNT (1 << 1)
87
88extern int xfs_icsb_init_counters(struct xfs_mount *);
89extern void xfs_icsb_reinit_counters(struct xfs_mount *);
90extern void xfs_icsb_destroy_counters(struct xfs_mount *);
91extern void xfs_icsb_sync_counters(struct xfs_mount *, int);
92extern void xfs_icsb_sync_counters_locked(struct xfs_mount *, int);
93extern int xfs_icsb_modify_counters(struct xfs_mount *, xfs_sb_field_t,
94 int64_t, int);
95
96#else
97#define xfs_icsb_init_counters(mp) (0)
98#define xfs_icsb_destroy_counters(mp) do { } while (0)
99#define xfs_icsb_reinit_counters(mp) do { } while (0)
100#define xfs_icsb_sync_counters(mp, flags) do { } while (0)
101#define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0)
102#define xfs_icsb_modify_counters(mp, field, delta, rsvd) \
103 xfs_mod_incore_sb(mp, field, delta, rsvd)
104#endif
105
106
107enum {
108 XFS_LOWSP_1_PCNT = 0,
109 XFS_LOWSP_2_PCNT,
110 XFS_LOWSP_3_PCNT,
111 XFS_LOWSP_4_PCNT,
112 XFS_LOWSP_5_PCNT,
113 XFS_LOWSP_MAX,
114};
115
116typedef struct xfs_mount {
117 struct super_block *m_super;
118 xfs_tid_t m_tid;
119 struct xfs_ail *m_ail;
120 xfs_sb_t m_sb;
121 spinlock_t m_sb_lock;
122 struct xfs_buf *m_sb_bp;
123 char *m_fsname;
124 int m_fsname_len;
125 char *m_rtname;
126 char *m_logname;
127 int m_bsize;
128 xfs_agnumber_t m_agfrotor;
129 xfs_agnumber_t m_agirotor;
130 spinlock_t m_agirotor_lock;
131 xfs_agnumber_t m_maxagi;
132 uint m_readio_log;
133 uint m_readio_blocks;
134 uint m_writeio_log;
135 uint m_writeio_blocks;
136 struct xlog *m_log;
137 int m_logbufs;
138 int m_logbsize;
139 uint m_rsumlevels;
140 uint m_rsumsize;
141 struct xfs_inode *m_rbmip;
142 struct xfs_inode *m_rsumip;
143 struct xfs_inode *m_rootip;
144 struct xfs_quotainfo *m_quotainfo;
145 xfs_buftarg_t *m_ddev_targp;
146 xfs_buftarg_t *m_logdev_targp;
147 xfs_buftarg_t *m_rtdev_targp;
148 __uint8_t m_blkbit_log;
149 __uint8_t m_blkbb_log;
150 __uint8_t m_agno_log;
151 __uint8_t m_agino_log;
152 __uint16_t m_inode_cluster_size;
153 uint m_blockmask;
154 uint m_blockwsize;
155 uint m_blockwmask;
156 uint m_alloc_mxr[2];
157 uint m_alloc_mnr[2];
158 uint m_bmap_dmxr[2];
159 uint m_bmap_dmnr[2];
160 uint m_inobt_mxr[2];
161 uint m_inobt_mnr[2];
162 uint m_ag_maxlevels;
163 uint m_bm_maxlevels[2];
164 uint m_in_maxlevels;
165 struct radix_tree_root m_perag_tree;
166 spinlock_t m_perag_lock;
167 struct mutex m_growlock;
168 int m_fixedfsid[2];
169 uint m_dmevmask;
170 __uint64_t m_flags;
171 uint m_dir_node_ents;
172 uint m_attr_node_ents;
173 int m_ialloc_inos;
174 int m_ialloc_blks;
175 int m_inoalign_mask;
176 uint m_qflags;
177 xfs_trans_reservations_t m_reservations;
178 __uint64_t m_maxicount;
179 __uint64_t m_resblks;
180 __uint64_t m_resblks_avail;
181 __uint64_t m_resblks_save;
182 int m_dalign;
183 int m_swidth;
184 int m_sinoalign;
185 int m_attr_magicpct;
186 int m_dir_magicpct;
187 __uint8_t m_sectbb_log;
188 const struct xfs_nameops *m_dirnameops;
189 int m_dirblksize;
190 int m_dirblkfsbs;
191 xfs_dablk_t m_dirdatablk;
192 xfs_dablk_t m_dirleafblk;
193 xfs_dablk_t m_dirfreeblk;
194 uint m_chsize;
195 struct xfs_chash *m_chash;
196
197 atomic_t m_active_trans;
198#ifdef HAVE_PERCPU_SB
199 xfs_icsb_cnts_t __percpu *m_sb_cnts;
200 unsigned long m_icsb_counters;
201 struct notifier_block m_icsb_notifier;
202 struct mutex m_icsb_mutex;
203#endif
204 struct xfs_mru_cache *m_filestream;
205 struct delayed_work m_reclaim_work;
206 struct delayed_work m_eofblocks_work;
207
208 __int64_t m_update_flags;
209
210 int64_t m_low_space[XFS_LOWSP_MAX];
211
212
213 struct workqueue_struct *m_data_workqueue;
214 struct workqueue_struct *m_unwritten_workqueue;
215 struct workqueue_struct *m_cil_workqueue;
216 struct workqueue_struct *m_reclaim_workqueue;
217 struct workqueue_struct *m_log_workqueue;
218 struct workqueue_struct *m_eofblocks_workqueue;
219} xfs_mount_t;
220
221
222
223
224#define XFS_MOUNT_WSYNC (1ULL << 0)
225
226
227#define XFS_MOUNT_WAS_CLEAN (1ULL << 3)
228#define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4)
229
230
231#define XFS_MOUNT_DISCARD (1ULL << 5)
232#define XFS_MOUNT_RETERR (1ULL << 6)
233
234#define XFS_MOUNT_NOALIGN (1ULL << 7)
235
236#define XFS_MOUNT_ATTR2 (1ULL << 8)
237#define XFS_MOUNT_GRPID (1ULL << 9)
238#define XFS_MOUNT_NORECOVERY (1ULL << 10)
239#define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12)
240#define XFS_MOUNT_32BITINODES (1ULL << 14)
241
242#define XFS_MOUNT_SMALL_INUMS (1ULL << 15)
243#define XFS_MOUNT_NOUUID (1ULL << 16)
244#define XFS_MOUNT_BARRIER (1ULL << 17)
245#define XFS_MOUNT_IKEEP (1ULL << 18)
246#define XFS_MOUNT_SWALLOC (1ULL << 19)
247
248#define XFS_MOUNT_RDONLY (1ULL << 20)
249#define XFS_MOUNT_DIRSYNC (1ULL << 21)
250#define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22)
251
252#define XFS_MOUNT_FILESTREAMS (1ULL << 24)
253
254#define XFS_MOUNT_NOATTR2 (1ULL << 25)
255
256
257
258
259
260#define XFS_READIO_LOG_LARGE 16
261#define XFS_WRITEIO_LOG_LARGE 16
262
263
264
265
266
267#define XFS_MAX_IO_LOG 30
268#define XFS_MIN_IO_LOG PAGE_SHIFT
269
270
271
272
273
274#define XFS_WSYNC_READIO_LOG 15
275#define XFS_WSYNC_WRITEIO_LOG 14
276
277
278
279
280
281
282
283
284
285
286
287
288
289static inline unsigned long
290xfs_preferred_iosize(xfs_mount_t *mp)
291{
292 if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE)
293 return PAGE_CACHE_SIZE;
294 return (mp->m_swidth ?
295 (mp->m_swidth << mp->m_sb.sb_blocklog) :
296 ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ?
297 (1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) :
298 PAGE_CACHE_SIZE));
299}
300
301#define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \
302 ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN)
303#define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN)
304void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
305 int lnnum);
306#define xfs_force_shutdown(m,f) \
307 xfs_do_force_shutdown(m, f, __FILE__, __LINE__)
308
309#define SHUTDOWN_META_IO_ERROR 0x0001
310#define SHUTDOWN_LOG_IO_ERROR 0x0002
311#define SHUTDOWN_FORCE_UMOUNT 0x0004
312#define SHUTDOWN_CORRUPT_INCORE 0x0008
313#define SHUTDOWN_REMOTE_REQ 0x0010
314#define SHUTDOWN_DEVICE_REQ 0x0020
315
316
317
318
319#define XFS_MFSI_QUIET 0x40
320
321static inline xfs_agnumber_t
322xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d)
323{
324 xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d);
325 do_div(ld, mp->m_sb.sb_agblocks);
326 return (xfs_agnumber_t) ld;
327}
328
329static inline xfs_agblock_t
330xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d)
331{
332 xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d);
333 return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks);
334}
335
336
337
338
339struct xfs_perag *xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno);
340struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *mp, xfs_agnumber_t agno,
341 int tag);
342void xfs_perag_put(struct xfs_perag *pag);
343
344
345
346
347#ifdef HAVE_PERCPU_SB
348static inline void
349xfs_icsb_lock(xfs_mount_t *mp)
350{
351 mutex_lock(&mp->m_icsb_mutex);
352}
353
354static inline void
355xfs_icsb_unlock(xfs_mount_t *mp)
356{
357 mutex_unlock(&mp->m_icsb_mutex);
358}
359#else
360#define xfs_icsb_lock(mp)
361#define xfs_icsb_unlock(mp)
362#endif
363
364
365
366
367
368typedef struct xfs_mod_sb {
369 xfs_sb_field_t msb_field;
370 int64_t msb_delta;
371} xfs_mod_sb_t;
372
373extern int xfs_log_sbcount(xfs_mount_t *);
374extern __uint64_t xfs_default_resblks(xfs_mount_t *mp);
375extern int xfs_mountfs(xfs_mount_t *mp);
376
377extern void xfs_unmountfs(xfs_mount_t *);
378extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
379extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *,
380 uint, int);
381extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t);
382extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int);
383extern int xfs_readsb(xfs_mount_t *, int);
384extern void xfs_freesb(xfs_mount_t *);
385extern int xfs_fs_writable(xfs_mount_t *);
386extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t);
387
388extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
389
390extern void xfs_set_low_space_thresholds(struct xfs_mount *);
391
392#endif
393
394extern void xfs_sb_calc_crc(struct xfs_buf *);
395extern void xfs_mod_sb(struct xfs_trans *, __int64_t);
396extern int xfs_initialize_perag(struct xfs_mount *, xfs_agnumber_t,
397 xfs_agnumber_t *);
398extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *);
399extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t);
400
401extern const struct xfs_buf_ops xfs_sb_buf_ops;
402
403#endif
404