]>
Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 LT |
17 | */ |
18 | #ifndef __XFS_MOUNT_H__ | |
19 | #define __XFS_MOUNT_H__ | |
20 | ||
1da177e4 LT |
21 | typedef struct xfs_trans_reservations { |
22 | uint tr_write; /* extent alloc trans */ | |
23 | uint tr_itruncate; /* truncate trans */ | |
24 | uint tr_rename; /* rename trans */ | |
25 | uint tr_link; /* link trans */ | |
26 | uint tr_remove; /* unlink trans */ | |
27 | uint tr_symlink; /* symlink trans */ | |
28 | uint tr_create; /* create trans */ | |
29 | uint tr_mkdir; /* mkdir trans */ | |
30 | uint tr_ifree; /* inode free trans */ | |
31 | uint tr_ichange; /* inode update trans */ | |
32 | uint tr_growdata; /* fs data section grow trans */ | |
33 | uint tr_swrite; /* sync write inode trans */ | |
34 | uint tr_addafork; /* cvt inode to attributed trans */ | |
35 | uint tr_writeid; /* write setuid/setgid file */ | |
36 | uint tr_attrinval; /* attr fork buffer invalidation */ | |
37 | uint tr_attrset; /* set/create an attribute */ | |
38 | uint tr_attrrm; /* remove an attribute */ | |
39 | uint tr_clearagi; /* clear bad agi unlinked ino bucket */ | |
40 | uint tr_growrtalloc; /* grow realtime allocations */ | |
41 | uint tr_growrtzero; /* grow realtime zeroing */ | |
42 | uint tr_growrtfree; /* grow realtime freeing */ | |
43 | } xfs_trans_reservations_t; | |
44 | ||
1da177e4 | 45 | #ifndef __KERNEL__ |
847fff5c | 46 | |
9d87c319 | 47 | #define xfs_daddr_to_agno(mp,d) \ |
1da177e4 | 48 | ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks)) |
9d87c319 | 49 | #define xfs_daddr_to_agbno(mp,d) \ |
1da177e4 | 50 | ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks)) |
847fff5c BN |
51 | |
52 | #else /* __KERNEL__ */ | |
53 | ||
6d73cf13 CH |
54 | #include "xfs_sync.h" |
55 | ||
1da177e4 LT |
56 | struct cred; |
57 | struct log; | |
1da177e4 | 58 | struct xfs_mount_args; |
1da177e4 | 59 | struct xfs_inode; |
1da177e4 LT |
60 | struct xfs_bmbt_irec; |
61 | struct xfs_bmap_free; | |
3e57ecf6 OW |
62 | struct xfs_extdelta; |
63 | struct xfs_swapext; | |
2a82b8be | 64 | struct xfs_mru_cache; |
5163f95a | 65 | struct xfs_nameops; |
82fa9012 | 66 | struct xfs_ail; |
7d095257 CH |
67 | struct xfs_quotainfo; |
68 | ||
1da177e4 | 69 | |
1da177e4 LT |
70 | /* |
71 | * Prototypes and functions for the Data Migration subsystem. | |
72 | */ | |
73 | ||
bc4ac74a | 74 | typedef int (*xfs_send_data_t)(int, struct xfs_inode *, |
126468b1 | 75 | xfs_off_t, size_t, int, int *); |
1da177e4 | 76 | typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); |
bc4ac74a | 77 | typedef int (*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t); |
b267ce99 | 78 | typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *, |
bc4ac74a CH |
79 | struct xfs_inode *, dm_right_t, |
80 | struct xfs_inode *, dm_right_t, | |
556b8b16 | 81 | const char *, const char *, mode_t, int, int); |
293688ec CH |
82 | typedef int (*xfs_send_mount_t)(struct xfs_mount *, dm_right_t, |
83 | char *, char *); | |
bc4ac74a | 84 | typedef void (*xfs_send_unmount_t)(struct xfs_mount *, struct xfs_inode *, |
1da177e4 LT |
85 | dm_right_t, mode_t, int, int); |
86 | ||
87 | typedef struct xfs_dmops { | |
88 | xfs_send_data_t xfs_send_data; | |
89 | xfs_send_mmap_t xfs_send_mmap; | |
90 | xfs_send_destroy_t xfs_send_destroy; | |
91 | xfs_send_namesp_t xfs_send_namesp; | |
293688ec | 92 | xfs_send_mount_t xfs_send_mount; |
1da177e4 LT |
93 | xfs_send_unmount_t xfs_send_unmount; |
94 | } xfs_dmops_t; | |
95 | ||
30ac0683 CH |
96 | #define XFS_DMAPI_UNMOUNT_FLAGS(mp) \ |
97 | (((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED) | |
98 | ||
bc4ac74a CH |
99 | #define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \ |
100 | (*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock) | |
1da177e4 | 101 | #define XFS_SEND_MMAP(mp, vma,fl) \ |
293688ec | 102 | (*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl) |
bc4ac74a CH |
103 | #define XFS_SEND_DESTROY(mp, ip,right) \ |
104 | (*(mp)->m_dm_ops->xfs_send_destroy)(ip,right) | |
1da177e4 | 105 | #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ |
293688ec | 106 | (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) |
293688ec CH |
107 | #define XFS_SEND_MOUNT(mp,right,path,name) \ |
108 | (*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name) | |
30ac0683 CH |
109 | #define XFS_SEND_PREUNMOUNT(mp) \ |
110 | do { \ | |
111 | if (mp->m_flags & XFS_MOUNT_DMAPI) { \ | |
112 | (*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT, mp, \ | |
113 | (mp)->m_rootip, DM_RIGHT_NULL, \ | |
114 | (mp)->m_rootip, DM_RIGHT_NULL, \ | |
115 | NULL, NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \ | |
116 | } \ | |
117 | } while (0) | |
118 | #define XFS_SEND_UNMOUNT(mp) \ | |
119 | do { \ | |
120 | if (mp->m_flags & XFS_MOUNT_DMAPI) { \ | |
121 | (*(mp)->m_dm_ops->xfs_send_unmount)(mp, (mp)->m_rootip, \ | |
122 | DM_RIGHT_NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \ | |
123 | } \ | |
124 | } while (0) | |
1da177e4 LT |
125 | |
126 | ||
8d280b98 DC |
127 | #ifdef HAVE_PERCPU_SB |
128 | ||
129 | /* | |
130 | * Valid per-cpu incore superblock counters. Note that if you add new counters, | |
131 | * you may need to define new counter disabled bit field descriptors as there | |
132 | * are more possible fields in the superblock that can fit in a bitfield on a | |
133 | * 32 bit platform. The XFS_SBS_* values for the current current counters just | |
134 | * fit. | |
135 | */ | |
136 | typedef struct xfs_icsb_cnts { | |
137 | uint64_t icsb_fdblocks; | |
138 | uint64_t icsb_ifree; | |
139 | uint64_t icsb_icount; | |
01e1b69c | 140 | unsigned long icsb_flags; |
8d280b98 DC |
141 | } xfs_icsb_cnts_t; |
142 | ||
01e1b69c DC |
143 | #define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */ |
144 | ||
8d280b98 DC |
145 | #define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */ |
146 | ||
147 | extern int xfs_icsb_init_counters(struct xfs_mount *); | |
5478eead | 148 | extern void xfs_icsb_reinit_counters(struct xfs_mount *); |
c962fb79 | 149 | extern void xfs_icsb_destroy_counters(struct xfs_mount *); |
d4d90b57 CH |
150 | extern void xfs_icsb_sync_counters(struct xfs_mount *, int); |
151 | extern void xfs_icsb_sync_counters_locked(struct xfs_mount *, int); | |
8d280b98 DC |
152 | |
153 | #else | |
c962fb79 CH |
154 | #define xfs_icsb_init_counters(mp) (0) |
155 | #define xfs_icsb_destroy_counters(mp) do { } while (0) | |
156 | #define xfs_icsb_reinit_counters(mp) do { } while (0) | |
d4d90b57 | 157 | #define xfs_icsb_sync_counters(mp, flags) do { } while (0) |
7155054c | 158 | #define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0) |
8d280b98 | 159 | #endif |
1da177e4 LT |
160 | |
161 | typedef struct xfs_mount { | |
b267ce99 | 162 | struct super_block *m_super; |
1da177e4 | 163 | xfs_tid_t m_tid; /* next unused tid for fs */ |
82fa9012 | 164 | struct xfs_ail *m_ail; /* fs active log item list */ |
1da177e4 | 165 | xfs_sb_t m_sb; /* copy of fs superblock */ |
3685c2a1 | 166 | spinlock_t m_sb_lock; /* sb counter lock */ |
1da177e4 LT |
167 | struct xfs_buf *m_sb_bp; /* buffer for superblock */ |
168 | char *m_fsname; /* filesystem name */ | |
169 | int m_fsname_len; /* strlen of fs name */ | |
fc1f8c1c NS |
170 | char *m_rtname; /* realtime device name */ |
171 | char *m_logname; /* external log device name */ | |
1da177e4 LT |
172 | int m_bsize; /* fs logical block size */ |
173 | xfs_agnumber_t m_agfrotor; /* last ag where space found */ | |
174 | xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ | |
36e41eeb | 175 | spinlock_t m_agirotor_lock;/* .. and lock protecting it */ |
1da177e4 | 176 | xfs_agnumber_t m_maxagi; /* highest inode alloc group */ |
1da177e4 LT |
177 | uint m_readio_log; /* min read size log bytes */ |
178 | uint m_readio_blocks; /* min read size blocks */ | |
179 | uint m_writeio_log; /* min write size log bytes */ | |
180 | uint m_writeio_blocks; /* min write size blocks */ | |
181 | struct log *m_log; /* log specific stuff */ | |
182 | int m_logbufs; /* number of log buffers */ | |
183 | int m_logbsize; /* size of each log buffer */ | |
184 | uint m_rsumlevels; /* rt summary levels */ | |
185 | uint m_rsumsize; /* size of rt summary, bytes */ | |
186 | struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ | |
187 | struct xfs_inode *m_rsumip; /* pointer to summary inode */ | |
188 | struct xfs_inode *m_rootip; /* pointer to root directory */ | |
189 | struct xfs_quotainfo *m_quotainfo; /* disk quota information */ | |
190 | xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ | |
191 | xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ | |
192 | xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ | |
1da177e4 LT |
193 | __uint8_t m_blkbit_log; /* blocklog + NBBY */ |
194 | __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ | |
195 | __uint8_t m_agno_log; /* log #ag's */ | |
196 | __uint8_t m_agino_log; /* #bits for agino in inum */ | |
1da177e4 LT |
197 | __uint16_t m_inode_cluster_size;/* min inode buf size */ |
198 | uint m_blockmask; /* sb_blocksize-1 */ | |
199 | uint m_blockwsize; /* sb_blocksize in words */ | |
200 | uint m_blockwmask; /* blockwsize-1 */ | |
60197e8d CH |
201 | uint m_alloc_mxr[2]; /* max alloc btree records */ |
202 | uint m_alloc_mnr[2]; /* min alloc btree records */ | |
203 | uint m_bmap_dmxr[2]; /* max bmap btree records */ | |
204 | uint m_bmap_dmnr[2]; /* min bmap btree records */ | |
205 | uint m_inobt_mxr[2]; /* max inobt btree records */ | |
206 | uint m_inobt_mnr[2]; /* min inobt btree records */ | |
1da177e4 LT |
207 | uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ |
208 | uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ | |
0d87e656 | 209 | uint m_in_maxlevels; /* max inobt btree levels. */ |
1c1c6ebc DC |
210 | struct radix_tree_root m_perag_tree; /* per-ag accounting info */ |
211 | spinlock_t m_perag_lock; /* lock for m_perag_tree */ | |
cc92e7ac | 212 | struct mutex m_growlock; /* growfs mutex */ |
1da177e4 LT |
213 | int m_fixedfsid[2]; /* unchanged for life of FS */ |
214 | uint m_dmevmask; /* DMI events for this FS */ | |
e718eeb4 | 215 | __uint64_t m_flags; /* global mount flags */ |
1da177e4 LT |
216 | uint m_dir_node_ents; /* #entries in a dir danode */ |
217 | uint m_attr_node_ents; /* #entries in attr danode */ | |
218 | int m_ialloc_inos; /* inodes in inode allocation */ | |
219 | int m_ialloc_blks; /* blocks in inode allocation */ | |
1da177e4 LT |
220 | int m_inoalign_mask;/* mask sb_inoalignmt if used */ |
221 | uint m_qflags; /* quota status flags */ | |
222 | xfs_trans_reservations_t m_reservations;/* precomputed res values */ | |
223 | __uint64_t m_maxicount; /* maximum inode count */ | |
224 | __uint64_t m_maxioffset; /* maximum inode offset */ | |
225 | __uint64_t m_resblks; /* total reserved blocks */ | |
226 | __uint64_t m_resblks_avail;/* available reserved blocks */ | |
1da177e4 LT |
227 | int m_dalign; /* stripe unit */ |
228 | int m_swidth; /* stripe width */ | |
c41564b5 | 229 | int m_sinoalign; /* stripe unit inode alignment */ |
1da177e4 LT |
230 | int m_attr_magicpct;/* 37% of the blocksize */ |
231 | int m_dir_magicpct; /* 37% of the dir blocksize */ | |
1da177e4 | 232 | __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ |
5163f95a | 233 | const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */ |
1da177e4 LT |
234 | int m_dirblksize; /* directory block sz--bytes */ |
235 | int m_dirblkfsbs; /* directory block sz--fsbs */ | |
236 | xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ | |
237 | xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ | |
238 | xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ | |
239 | uint m_chsize; /* size of next field */ | |
240 | struct xfs_chash *m_chash; /* fs private inode per-cluster | |
241 | * hash table */ | |
293688ec | 242 | struct xfs_dmops *m_dm_ops; /* vector of DMI ops */ |
b09cc771 | 243 | struct xfs_qmops *m_qm_ops; /* vector of XQM ops */ |
1da177e4 | 244 | atomic_t m_active_trans; /* number trans frozen */ |
8d280b98 DC |
245 | #ifdef HAVE_PERCPU_SB |
246 | xfs_icsb_cnts_t *m_sb_cnts; /* per-cpu superblock counters */ | |
247 | unsigned long m_icsb_counters; /* disabled per-cpu counters */ | |
e8234a68 | 248 | struct notifier_block m_icsb_notifier; /* hotplug cpu notifier */ |
20b64285 | 249 | struct mutex m_icsb_mutex; /* balancer sync lock */ |
8d280b98 | 250 | #endif |
2a82b8be | 251 | struct xfs_mru_cache *m_filestream; /* per-mount filestream data */ |
74394496 | 252 | struct task_struct *m_sync_task; /* generalised sync thread */ |
a8d770d9 | 253 | xfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */ |
74394496 CH |
254 | struct list_head m_sync_list; /* sync thread work item list */ |
255 | spinlock_t m_sync_lock; /* work item list lock */ | |
256 | int m_sync_seq; /* sync thread generation no. */ | |
257 | wait_queue_head_t m_wait_single_sync_task; | |
7884bc86 CH |
258 | __int64_t m_update_flags; /* sb flags we need to update |
259 | on the next remount,rw */ | |
1da177e4 LT |
260 | } xfs_mount_t; |
261 | ||
262 | /* | |
263 | * Flags for m_flags. | |
264 | */ | |
92821e2b | 265 | #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops |
1da177e4 LT |
266 | must be synchronous except |
267 | for space allocations */ | |
bd186aa9 | 268 | #define XFS_MOUNT_DMAPI (1ULL << 2) /* dmapi is enabled */ |
92821e2b | 269 | #define XFS_MOUNT_WAS_CLEAN (1ULL << 3) |
e718eeb4 | 270 | #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem |
1da177e4 LT |
271 | operations, typically for |
272 | disk errors in metadata */ | |
e718eeb4 | 273 | #define XFS_MOUNT_RETERR (1ULL << 6) /* return alignment errors to |
1da177e4 | 274 | user */ |
e718eeb4 | 275 | #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment |
1da177e4 | 276 | allocations */ |
13059ff0 | 277 | #define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */ |
bd186aa9 | 278 | #define XFS_MOUNT_GRPID (1ULL << 9) /* group-ID assigned from directory */ |
e718eeb4 | 279 | #define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */ |
e718eeb4 NS |
280 | #define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */ |
281 | #define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */ | |
1da177e4 | 282 | /* osyncisdsync is now default*/ |
e718eeb4 | 283 | #define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above |
1da177e4 | 284 | * 32 bits in size */ |
bd186aa9 | 285 | #define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */ |
e718eeb4 NS |
286 | #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ |
287 | #define XFS_MOUNT_BARRIER (1ULL << 17) | |
1bd960ee | 288 | #define XFS_MOUNT_IKEEP (1ULL << 18) /* keep empty inode clusters*/ |
e718eeb4 | 289 | #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width |
1da177e4 | 290 | * allocation */ |
bd186aa9 | 291 | #define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */ |
e718eeb4 NS |
292 | #define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */ |
293 | #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred | |
e8c8b3a7 | 294 | * I/O size in stat() */ |
8d280b98 DC |
295 | #define XFS_MOUNT_NO_PERCPU_SB (1ULL << 23) /* don't use per-cpu superblock |
296 | counters */ | |
2a82b8be DC |
297 | #define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams |
298 | allocator */ | |
7c12f296 | 299 | #define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */ |
e8c8b3a7 | 300 | |
1da177e4 LT |
301 | |
302 | /* | |
303 | * Default minimum read and write sizes. | |
304 | */ | |
305 | #define XFS_READIO_LOG_LARGE 16 | |
306 | #define XFS_WRITEIO_LOG_LARGE 16 | |
307 | ||
308 | /* | |
1f443ad7 NS |
309 | * Max and min values for mount-option defined I/O |
310 | * preallocation sizes. | |
1da177e4 | 311 | */ |
1f443ad7 | 312 | #define XFS_MAX_IO_LOG 30 /* 1G */ |
1da177e4 LT |
313 | #define XFS_MIN_IO_LOG PAGE_SHIFT |
314 | ||
315 | /* | |
316 | * Synchronous read and write sizes. This should be | |
317 | * better for NFSv2 wsync filesystems. | |
318 | */ | |
9da096fd MP |
319 | #define XFS_WSYNC_READIO_LOG 15 /* 32k */ |
320 | #define XFS_WSYNC_WRITEIO_LOG 14 /* 16k */ | |
1da177e4 | 321 | |
e8c8b3a7 DC |
322 | /* |
323 | * Allow large block sizes to be reported to userspace programs if the | |
556b8b16 | 324 | * "largeio" mount option is used. |
e8c8b3a7 DC |
325 | * |
326 | * If compatibility mode is specified, simply return the basic unit of caching | |
327 | * so that we don't get inefficient read/modify/write I/O from user apps. | |
328 | * Otherwise.... | |
329 | * | |
330 | * If the underlying volume is a stripe, then return the stripe width in bytes | |
331 | * as the recommended I/O size. It is not a stripe and we've set a default | |
332 | * buffered I/O size, return that, otherwise return the compat default. | |
333 | */ | |
334 | static inline unsigned long | |
335 | xfs_preferred_iosize(xfs_mount_t *mp) | |
336 | { | |
337 | if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE) | |
338 | return PAGE_CACHE_SIZE; | |
339 | return (mp->m_swidth ? | |
340 | (mp->m_swidth << mp->m_sb.sb_blocklog) : | |
341 | ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ? | |
342 | (1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) : | |
343 | PAGE_CACHE_SIZE)); | |
344 | } | |
345 | ||
1da177e4 LT |
346 | #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) |
347 | ||
92821e2b DC |
348 | #define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \ |
349 | ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN) | |
1da177e4 | 350 | #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) |
745f6919 CH |
351 | void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname, |
352 | int lnnum); | |
1da177e4 | 353 | #define xfs_force_shutdown(m,f) \ |
745f6919 | 354 | xfs_do_force_shutdown(m, f, __FILE__, __LINE__) |
1da177e4 | 355 | |
2b5decd0 CH |
356 | #define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ |
357 | #define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ | |
358 | #define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */ | |
359 | #define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */ | |
360 | #define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */ | |
361 | #define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */ | |
362 | ||
363 | #define xfs_test_for_freeze(mp) ((mp)->m_super->s_frozen) | |
364 | #define xfs_wait_for_freeze(mp,l) vfs_check_frozen((mp)->m_super, (l)) | |
365 | ||
1da177e4 LT |
366 | /* |
367 | * Flags for xfs_mountfs | |
368 | */ | |
764d1f89 | 369 | #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */ |
1da177e4 | 370 | |
a844f451 NS |
371 | static inline xfs_agnumber_t |
372 | xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 373 | { |
a844f451 NS |
374 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
375 | do_div(ld, mp->m_sb.sb_agblocks); | |
376 | return (xfs_agnumber_t) ld; | |
1da177e4 LT |
377 | } |
378 | ||
a844f451 NS |
379 | static inline xfs_agblock_t |
380 | xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 381 | { |
a844f451 NS |
382 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
383 | return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks); | |
1da177e4 LT |
384 | } |
385 | ||
da353b0d | 386 | /* |
aed3bb90 | 387 | * perag get/put wrappers for ref counting |
da353b0d | 388 | */ |
5017e97d DC |
389 | static inline struct xfs_perag * |
390 | xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno) | |
da353b0d | 391 | { |
1c1c6ebc DC |
392 | struct xfs_perag *pag; |
393 | ||
394 | spin_lock(&mp->m_perag_lock); | |
395 | pag = radix_tree_lookup(&mp->m_perag_tree, agno); | |
aed3bb90 DC |
396 | if (pag) { |
397 | ASSERT(atomic_read(&pag->pag_ref) >= 0); | |
398 | /* catch leaks in the positive direction during testing */ | |
399 | ASSERT(atomic_read(&pag->pag_ref) < 1000); | |
400 | atomic_inc(&pag->pag_ref); | |
401 | } | |
1c1c6ebc DC |
402 | spin_unlock(&mp->m_perag_lock); |
403 | return pag; | |
da353b0d DC |
404 | } |
405 | ||
406 | static inline void | |
5017e97d | 407 | xfs_perag_put(struct xfs_perag *pag) |
da353b0d | 408 | { |
aed3bb90 DC |
409 | ASSERT(atomic_read(&pag->pag_ref) > 0); |
410 | atomic_dec(&pag->pag_ref); | |
da353b0d DC |
411 | } |
412 | ||
03135cf7 DC |
413 | /* |
414 | * Per-cpu superblock locking functions | |
415 | */ | |
416 | #ifdef HAVE_PERCPU_SB | |
b8f82a4a | 417 | static inline void |
03135cf7 DC |
418 | xfs_icsb_lock(xfs_mount_t *mp) |
419 | { | |
420 | mutex_lock(&mp->m_icsb_mutex); | |
421 | } | |
422 | ||
b8f82a4a | 423 | static inline void |
03135cf7 DC |
424 | xfs_icsb_unlock(xfs_mount_t *mp) |
425 | { | |
426 | mutex_unlock(&mp->m_icsb_mutex); | |
427 | } | |
428 | #else | |
429 | #define xfs_icsb_lock(mp) | |
430 | #define xfs_icsb_unlock(mp) | |
431 | #endif | |
432 | ||
1da177e4 LT |
433 | /* |
434 | * This structure is for use by the xfs_mod_incore_sb_batch() routine. | |
20f4ebf2 | 435 | * xfs_growfs can specify a few fields which are more than int limit |
1da177e4 LT |
436 | */ |
437 | typedef struct xfs_mod_sb { | |
438 | xfs_sb_field_t msb_field; /* Field to modify, see below */ | |
20f4ebf2 | 439 | int64_t msb_delta; /* Change to make to specified field */ |
1da177e4 LT |
440 | } xfs_mod_sb_t; |
441 | ||
92821e2b | 442 | extern int xfs_log_sbcount(xfs_mount_t *, uint); |
4249023a | 443 | extern int xfs_mountfs(xfs_mount_t *mp); |
1da177e4 | 444 | |
41b5c2e7 | 445 | extern void xfs_unmountfs(xfs_mount_t *); |
1da177e4 | 446 | extern int xfs_unmountfs_writesb(xfs_mount_t *); |
20f4ebf2 | 447 | extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); |
1da177e4 LT |
448 | extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, |
449 | uint, int); | |
7884bc86 | 450 | extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); |
1da177e4 | 451 | extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); |
764d1f89 | 452 | extern int xfs_readsb(xfs_mount_t *, int); |
1da177e4 | 453 | extern void xfs_freesb(xfs_mount_t *); |
92821e2b | 454 | extern int xfs_fs_writable(xfs_mount_t *); |
4cc929ee | 455 | extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t); |
1da177e4 | 456 | |
9d565ffa | 457 | extern int xfs_dmops_get(struct xfs_mount *); |
293688ec CH |
458 | extern void xfs_dmops_put(struct xfs_mount *); |
459 | ||
460 | extern struct xfs_dmops xfs_dmcore_xfs; | |
1da177e4 | 461 | |
1da177e4 LT |
462 | #endif /* __KERNEL__ */ |
463 | ||
847fff5c | 464 | extern void xfs_mod_sb(struct xfs_trans *, __int64_t); |
1c1c6ebc DC |
465 | extern int xfs_initialize_perag(struct xfs_mount *, xfs_agnumber_t, |
466 | xfs_agnumber_t *); | |
847fff5c BN |
467 | extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *); |
468 | extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t); | |
469 | ||
1da177e4 | 470 | #endif /* __XFS_MOUNT_H__ */ |