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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of version 2 of the GNU General Public License as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it would be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
11 | * | |
12 | * Further, this software is distributed without any warranty that it is | |
13 | * free of the rightful claim of any third person regarding infringement | |
14 | * or the like. Any license provided herein, whether implied or | |
15 | * otherwise, applies only to this software file. Patent licenses, if | |
16 | * any, provided herein do not apply to combinations of this program with | |
17 | * other software, or any other product whatsoever. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | |
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
22 | * | |
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | |
24 | * Mountain View, CA 94043, or: | |
25 | * | |
26 | * http://www.sgi.com | |
27 | * | |
28 | * For further information regarding this notice, see: | |
29 | * | |
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | |
31 | */ | |
32 | #ifndef __XFS_MOUNT_H__ | |
33 | #define __XFS_MOUNT_H__ | |
34 | ||
35 | ||
36 | typedef struct xfs_trans_reservations { | |
37 | uint tr_write; /* extent alloc trans */ | |
38 | uint tr_itruncate; /* truncate trans */ | |
39 | uint tr_rename; /* rename trans */ | |
40 | uint tr_link; /* link trans */ | |
41 | uint tr_remove; /* unlink trans */ | |
42 | uint tr_symlink; /* symlink trans */ | |
43 | uint tr_create; /* create trans */ | |
44 | uint tr_mkdir; /* mkdir trans */ | |
45 | uint tr_ifree; /* inode free trans */ | |
46 | uint tr_ichange; /* inode update trans */ | |
47 | uint tr_growdata; /* fs data section grow trans */ | |
48 | uint tr_swrite; /* sync write inode trans */ | |
49 | uint tr_addafork; /* cvt inode to attributed trans */ | |
50 | uint tr_writeid; /* write setuid/setgid file */ | |
51 | uint tr_attrinval; /* attr fork buffer invalidation */ | |
52 | uint tr_attrset; /* set/create an attribute */ | |
53 | uint tr_attrrm; /* remove an attribute */ | |
54 | uint tr_clearagi; /* clear bad agi unlinked ino bucket */ | |
55 | uint tr_growrtalloc; /* grow realtime allocations */ | |
56 | uint tr_growrtzero; /* grow realtime zeroing */ | |
57 | uint tr_growrtfree; /* grow realtime freeing */ | |
58 | } xfs_trans_reservations_t; | |
59 | ||
60 | ||
61 | #ifndef __KERNEL__ | |
62 | /* | |
63 | * Moved here from xfs_ag.h to avoid reordering header files | |
64 | */ | |
65 | #define XFS_DADDR_TO_AGNO(mp,d) \ | |
66 | ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks)) | |
67 | #define XFS_DADDR_TO_AGBNO(mp,d) \ | |
68 | ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks)) | |
69 | #else | |
70 | struct cred; | |
71 | struct log; | |
72 | struct vfs; | |
73 | struct vnode; | |
74 | struct xfs_mount_args; | |
75 | struct xfs_ihash; | |
76 | struct xfs_chash; | |
77 | struct xfs_inode; | |
78 | struct xfs_perag; | |
79 | struct xfs_iocore; | |
80 | struct xfs_bmbt_irec; | |
81 | struct xfs_bmap_free; | |
82 | ||
83 | #define AIL_LOCK_T lock_t | |
84 | #define AIL_LOCKINIT(x,y) spinlock_init(x,y) | |
85 | #define AIL_LOCK_DESTROY(x) spinlock_destroy(x) | |
86 | #define AIL_LOCK(mp,s) s=mutex_spinlock(&(mp)->m_ail_lock) | |
87 | #define AIL_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_ail_lock, s) | |
88 | ||
89 | ||
90 | /* | |
91 | * Prototypes and functions for the Data Migration subsystem. | |
92 | */ | |
93 | ||
94 | typedef int (*xfs_send_data_t)(int, struct vnode *, | |
95 | xfs_off_t, size_t, int, vrwlock_t *); | |
96 | typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); | |
97 | typedef int (*xfs_send_destroy_t)(struct vnode *, dm_right_t); | |
98 | typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct vfs *, | |
99 | struct vnode *, | |
100 | dm_right_t, struct vnode *, dm_right_t, | |
101 | char *, char *, mode_t, int, int); | |
102 | typedef void (*xfs_send_unmount_t)(struct vfs *, struct vnode *, | |
103 | dm_right_t, mode_t, int, int); | |
104 | ||
105 | typedef struct xfs_dmops { | |
106 | xfs_send_data_t xfs_send_data; | |
107 | xfs_send_mmap_t xfs_send_mmap; | |
108 | xfs_send_destroy_t xfs_send_destroy; | |
109 | xfs_send_namesp_t xfs_send_namesp; | |
110 | xfs_send_unmount_t xfs_send_unmount; | |
111 | } xfs_dmops_t; | |
112 | ||
113 | #define XFS_SEND_DATA(mp, ev,vp,off,len,fl,lock) \ | |
114 | (*(mp)->m_dm_ops.xfs_send_data)(ev,vp,off,len,fl,lock) | |
115 | #define XFS_SEND_MMAP(mp, vma,fl) \ | |
116 | (*(mp)->m_dm_ops.xfs_send_mmap)(vma,fl) | |
117 | #define XFS_SEND_DESTROY(mp, vp,right) \ | |
118 | (*(mp)->m_dm_ops.xfs_send_destroy)(vp,right) | |
119 | #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ | |
120 | (*(mp)->m_dm_ops.xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) | |
121 | #define XFS_SEND_PREUNMOUNT(mp, vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ | |
122 | (*(mp)->m_dm_ops.xfs_send_namesp)(DM_EVENT_PREUNMOUNT,vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) | |
123 | #define XFS_SEND_UNMOUNT(mp, vfsp,vp,right,mode,rval,fl) \ | |
124 | (*(mp)->m_dm_ops.xfs_send_unmount)(vfsp,vp,right,mode,rval,fl) | |
125 | ||
126 | ||
127 | /* | |
128 | * Prototypes and functions for the Quota Management subsystem. | |
129 | */ | |
130 | ||
131 | struct xfs_dquot; | |
132 | struct xfs_dqtrxops; | |
133 | struct xfs_quotainfo; | |
134 | ||
135 | typedef int (*xfs_qminit_t)(struct xfs_mount *, uint *, uint *); | |
136 | typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int); | |
137 | typedef int (*xfs_qmunmount_t)(struct xfs_mount *); | |
138 | typedef void (*xfs_qmdone_t)(struct xfs_mount *); | |
139 | typedef void (*xfs_dqrele_t)(struct xfs_dquot *); | |
140 | typedef int (*xfs_dqattach_t)(struct xfs_inode *, uint); | |
141 | typedef void (*xfs_dqdetach_t)(struct xfs_inode *); | |
142 | typedef int (*xfs_dqpurgeall_t)(struct xfs_mount *, uint); | |
143 | typedef int (*xfs_dqvopalloc_t)(struct xfs_mount *, | |
c8ad20ff | 144 | struct xfs_inode *, uid_t, gid_t, prid_t, uint, |
1da177e4 LT |
145 | struct xfs_dquot **, struct xfs_dquot **); |
146 | typedef void (*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *, | |
147 | struct xfs_dquot *, struct xfs_dquot *); | |
148 | typedef int (*xfs_dqvoprename_t)(struct xfs_inode **); | |
149 | typedef struct xfs_dquot * (*xfs_dqvopchown_t)( | |
150 | struct xfs_trans *, struct xfs_inode *, | |
151 | struct xfs_dquot **, struct xfs_dquot *); | |
152 | typedef int (*xfs_dqvopchownresv_t)(struct xfs_trans *, struct xfs_inode *, | |
153 | struct xfs_dquot *, struct xfs_dquot *, uint); | |
154 | ||
155 | typedef struct xfs_qmops { | |
156 | xfs_qminit_t xfs_qminit; | |
157 | xfs_qmdone_t xfs_qmdone; | |
158 | xfs_qmmount_t xfs_qmmount; | |
159 | xfs_qmunmount_t xfs_qmunmount; | |
160 | xfs_dqrele_t xfs_dqrele; | |
161 | xfs_dqattach_t xfs_dqattach; | |
162 | xfs_dqdetach_t xfs_dqdetach; | |
163 | xfs_dqpurgeall_t xfs_dqpurgeall; | |
164 | xfs_dqvopalloc_t xfs_dqvopalloc; | |
165 | xfs_dqvopcreate_t xfs_dqvopcreate; | |
166 | xfs_dqvoprename_t xfs_dqvoprename; | |
167 | xfs_dqvopchown_t xfs_dqvopchown; | |
168 | xfs_dqvopchownresv_t xfs_dqvopchownresv; | |
169 | struct xfs_dqtrxops *xfs_dqtrxops; | |
170 | } xfs_qmops_t; | |
171 | ||
172 | #define XFS_QM_INIT(mp, mnt, fl) \ | |
173 | (*(mp)->m_qm_ops.xfs_qminit)(mp, mnt, fl) | |
174 | #define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \ | |
175 | (*(mp)->m_qm_ops.xfs_qmmount)(mp, mnt, fl, mfsi_flags) | |
176 | #define XFS_QM_UNMOUNT(mp) \ | |
177 | (*(mp)->m_qm_ops.xfs_qmunmount)(mp) | |
178 | #define XFS_QM_DONE(mp) \ | |
179 | (*(mp)->m_qm_ops.xfs_qmdone)(mp) | |
180 | #define XFS_QM_DQRELE(mp, dq) \ | |
181 | (*(mp)->m_qm_ops.xfs_dqrele)(dq) | |
182 | #define XFS_QM_DQATTACH(mp, ip, fl) \ | |
183 | (*(mp)->m_qm_ops.xfs_dqattach)(ip, fl) | |
184 | #define XFS_QM_DQDETACH(mp, ip) \ | |
185 | (*(mp)->m_qm_ops.xfs_dqdetach)(ip) | |
186 | #define XFS_QM_DQPURGEALL(mp, fl) \ | |
187 | (*(mp)->m_qm_ops.xfs_dqpurgeall)(mp, fl) | |
c8ad20ff NS |
188 | #define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, prid, fl, dq1, dq2) \ |
189 | (*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, prid, fl, dq1, dq2) | |
1da177e4 LT |
190 | #define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \ |
191 | (*(mp)->m_qm_ops.xfs_dqvopcreate)(tp, ip, dq1, dq2) | |
192 | #define XFS_QM_DQVOPRENAME(mp, ip) \ | |
193 | (*(mp)->m_qm_ops.xfs_dqvoprename)(ip) | |
194 | #define XFS_QM_DQVOPCHOWN(mp, tp, ip, dqp, dq) \ | |
195 | (*(mp)->m_qm_ops.xfs_dqvopchown)(tp, ip, dqp, dq) | |
196 | #define XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, dq1, dq2, fl) \ | |
197 | (*(mp)->m_qm_ops.xfs_dqvopchownresv)(tp, ip, dq1, dq2, fl) | |
198 | ||
199 | ||
200 | /* | |
201 | * Prototypes and functions for I/O core modularization. | |
202 | */ | |
203 | ||
204 | typedef int (*xfs_ioinit_t)(struct vfs *, | |
205 | struct xfs_mount_args *, int); | |
206 | typedef int (*xfs_bmapi_t)(struct xfs_trans *, void *, | |
207 | xfs_fileoff_t, xfs_filblks_t, int, | |
208 | xfs_fsblock_t *, xfs_extlen_t, | |
209 | struct xfs_bmbt_irec *, int *, | |
210 | struct xfs_bmap_free *); | |
211 | typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *); | |
212 | typedef int (*xfs_iomap_write_direct_t)( | |
f403b7f4 | 213 | void *, xfs_off_t, size_t, int, |
1da177e4 LT |
214 | struct xfs_bmbt_irec *, int *, int); |
215 | typedef int (*xfs_iomap_write_delay_t)( | |
f403b7f4 | 216 | void *, xfs_off_t, size_t, int, |
1da177e4 LT |
217 | struct xfs_bmbt_irec *, int *); |
218 | typedef int (*xfs_iomap_write_allocate_t)( | |
f403b7f4 | 219 | void *, xfs_off_t, size_t, |
24e17b5f | 220 | struct xfs_bmbt_irec *, int *); |
1da177e4 | 221 | typedef int (*xfs_iomap_write_unwritten_t)( |
f403b7f4 | 222 | void *, xfs_off_t, size_t); |
1da177e4 LT |
223 | typedef uint (*xfs_lck_map_shared_t)(void *); |
224 | typedef void (*xfs_lock_t)(void *, uint); | |
225 | typedef void (*xfs_lock_demote_t)(void *, uint); | |
226 | typedef int (*xfs_lock_nowait_t)(void *, uint); | |
227 | typedef void (*xfs_unlk_t)(void *, unsigned int); | |
228 | typedef xfs_fsize_t (*xfs_size_t)(void *); | |
229 | typedef xfs_fsize_t (*xfs_iodone_t)(struct vfs *); | |
230 | ||
231 | typedef struct xfs_ioops { | |
232 | xfs_ioinit_t xfs_ioinit; | |
233 | xfs_bmapi_t xfs_bmapi_func; | |
234 | xfs_bmap_eof_t xfs_bmap_eof_func; | |
235 | xfs_iomap_write_direct_t xfs_iomap_write_direct; | |
236 | xfs_iomap_write_delay_t xfs_iomap_write_delay; | |
237 | xfs_iomap_write_allocate_t xfs_iomap_write_allocate; | |
238 | xfs_iomap_write_unwritten_t xfs_iomap_write_unwritten; | |
239 | xfs_lock_t xfs_ilock; | |
240 | xfs_lck_map_shared_t xfs_lck_map_shared; | |
241 | xfs_lock_demote_t xfs_ilock_demote; | |
242 | xfs_lock_nowait_t xfs_ilock_nowait; | |
243 | xfs_unlk_t xfs_unlock; | |
244 | xfs_size_t xfs_size_func; | |
245 | xfs_iodone_t xfs_iodone; | |
246 | } xfs_ioops_t; | |
247 | ||
248 | #define XFS_IOINIT(vfsp, args, flags) \ | |
249 | (*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags) | |
250 | #define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist) \ | |
251 | (*(mp)->m_io_ops.xfs_bmapi_func) \ | |
252 | (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist) | |
253 | #define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \ | |
254 | (*(mp)->m_io_ops.xfs_bmap_eof_func) \ | |
255 | ((io)->io_obj, endoff, whichfork, eof) | |
256 | #define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\ | |
257 | (*(mp)->m_io_ops.xfs_iomap_write_direct) \ | |
258 | ((io)->io_obj, offset, count, flags, mval, nmap, found) | |
259 | #define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \ | |
260 | (*(mp)->m_io_ops.xfs_iomap_write_delay) \ | |
261 | ((io)->io_obj, offset, count, flags, mval, nmap) | |
24e17b5f | 262 | #define XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count, mval, nmap) \ |
1da177e4 | 263 | (*(mp)->m_io_ops.xfs_iomap_write_allocate) \ |
24e17b5f | 264 | ((io)->io_obj, offset, count, mval, nmap) |
1da177e4 LT |
265 | #define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \ |
266 | (*(mp)->m_io_ops.xfs_iomap_write_unwritten) \ | |
267 | ((io)->io_obj, offset, count) | |
268 | #define XFS_LCK_MAP_SHARED(mp, io) \ | |
269 | (*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj) | |
270 | #define XFS_ILOCK(mp, io, mode) \ | |
271 | (*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode) | |
272 | #define XFS_ILOCK_NOWAIT(mp, io, mode) \ | |
273 | (*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode) | |
274 | #define XFS_IUNLOCK(mp, io, mode) \ | |
275 | (*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode) | |
276 | #define XFS_ILOCK_DEMOTE(mp, io, mode) \ | |
277 | (*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode) | |
278 | #define XFS_SIZE(mp, io) \ | |
279 | (*(mp)->m_io_ops.xfs_size_func)((io)->io_obj) | |
280 | #define XFS_IODONE(vfsp) \ | |
281 | (*(mp)->m_io_ops.xfs_iodone)(vfsp) | |
282 | ||
283 | ||
284 | typedef struct xfs_mount { | |
285 | bhv_desc_t m_bhv; /* vfs xfs behavior */ | |
286 | xfs_tid_t m_tid; /* next unused tid for fs */ | |
287 | AIL_LOCK_T m_ail_lock; /* fs AIL mutex */ | |
288 | xfs_ail_entry_t m_ail; /* fs active log item list */ | |
289 | uint m_ail_gen; /* fs AIL generation count */ | |
290 | xfs_sb_t m_sb; /* copy of fs superblock */ | |
291 | lock_t m_sb_lock; /* sb counter mutex */ | |
292 | struct xfs_buf *m_sb_bp; /* buffer for superblock */ | |
293 | char *m_fsname; /* filesystem name */ | |
294 | int m_fsname_len; /* strlen of fs name */ | |
295 | int m_bsize; /* fs logical block size */ | |
296 | xfs_agnumber_t m_agfrotor; /* last ag where space found */ | |
297 | xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ | |
298 | lock_t m_agirotor_lock;/* .. and lock protecting it */ | |
299 | xfs_agnumber_t m_maxagi; /* highest inode alloc group */ | |
300 | uint m_ihsize; /* size of next field */ | |
301 | struct xfs_ihash *m_ihash; /* fs private inode hash table*/ | |
302 | struct xfs_inode *m_inodes; /* active inode list */ | |
303 | struct list_head m_del_inodes; /* inodes to reclaim */ | |
304 | mutex_t m_ilock; /* inode list mutex */ | |
305 | uint m_ireclaims; /* count of calls to reclaim*/ | |
306 | uint m_readio_log; /* min read size log bytes */ | |
307 | uint m_readio_blocks; /* min read size blocks */ | |
308 | uint m_writeio_log; /* min write size log bytes */ | |
309 | uint m_writeio_blocks; /* min write size blocks */ | |
310 | struct log *m_log; /* log specific stuff */ | |
311 | int m_logbufs; /* number of log buffers */ | |
312 | int m_logbsize; /* size of each log buffer */ | |
313 | uint m_rsumlevels; /* rt summary levels */ | |
314 | uint m_rsumsize; /* size of rt summary, bytes */ | |
315 | struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ | |
316 | struct xfs_inode *m_rsumip; /* pointer to summary inode */ | |
317 | struct xfs_inode *m_rootip; /* pointer to root directory */ | |
318 | struct xfs_quotainfo *m_quotainfo; /* disk quota information */ | |
319 | xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ | |
320 | xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ | |
321 | xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ | |
322 | #define m_dev m_ddev_targp->pbr_dev | |
323 | __uint8_t m_dircook_elog; /* log d-cookie entry bits */ | |
324 | __uint8_t m_blkbit_log; /* blocklog + NBBY */ | |
325 | __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ | |
326 | __uint8_t m_agno_log; /* log #ag's */ | |
327 | __uint8_t m_agino_log; /* #bits for agino in inum */ | |
328 | __uint8_t m_nreadaheads; /* #readahead buffers */ | |
329 | __uint16_t m_inode_cluster_size;/* min inode buf size */ | |
330 | uint m_blockmask; /* sb_blocksize-1 */ | |
331 | uint m_blockwsize; /* sb_blocksize in words */ | |
332 | uint m_blockwmask; /* blockwsize-1 */ | |
333 | uint m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */ | |
334 | uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */ | |
335 | uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */ | |
336 | uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */ | |
337 | uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */ | |
338 | uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */ | |
339 | uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ | |
340 | uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ | |
341 | uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */ | |
342 | struct xfs_perag *m_perag; /* per-ag accounting info */ | |
343 | struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */ | |
344 | sema_t m_growlock; /* growfs mutex */ | |
345 | int m_fixedfsid[2]; /* unchanged for life of FS */ | |
346 | uint m_dmevmask; /* DMI events for this FS */ | |
347 | uint m_flags; /* global mount flags */ | |
348 | uint m_attroffset; /* inode attribute offset */ | |
349 | uint m_dir_node_ents; /* #entries in a dir danode */ | |
350 | uint m_attr_node_ents; /* #entries in attr danode */ | |
351 | int m_ialloc_inos; /* inodes in inode allocation */ | |
352 | int m_ialloc_blks; /* blocks in inode allocation */ | |
353 | int m_litino; /* size of inode union area */ | |
354 | int m_inoalign_mask;/* mask sb_inoalignmt if used */ | |
355 | uint m_qflags; /* quota status flags */ | |
356 | xfs_trans_reservations_t m_reservations;/* precomputed res values */ | |
357 | __uint64_t m_maxicount; /* maximum inode count */ | |
358 | __uint64_t m_maxioffset; /* maximum inode offset */ | |
359 | __uint64_t m_resblks; /* total reserved blocks */ | |
360 | __uint64_t m_resblks_avail;/* available reserved blocks */ | |
361 | #if XFS_BIG_INUMS | |
362 | xfs_ino_t m_inoadd; /* add value for ino64_offset */ | |
363 | #endif | |
364 | int m_dalign; /* stripe unit */ | |
365 | int m_swidth; /* stripe width */ | |
366 | int m_sinoalign; /* stripe unit inode alignmnt */ | |
367 | int m_attr_magicpct;/* 37% of the blocksize */ | |
368 | int m_dir_magicpct; /* 37% of the dir blocksize */ | |
369 | __uint8_t m_mk_sharedro; /* mark shared ro on unmount */ | |
370 | __uint8_t m_inode_quiesce;/* call quiesce on new inodes. | |
371 | field governed by m_ilock */ | |
372 | __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ | |
373 | __uint8_t m_dirversion; /* 1 or 2 */ | |
374 | xfs_dirops_t m_dirops; /* table of dir funcs */ | |
375 | int m_dirblksize; /* directory block sz--bytes */ | |
376 | int m_dirblkfsbs; /* directory block sz--fsbs */ | |
377 | xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ | |
378 | xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ | |
379 | xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ | |
380 | uint m_chsize; /* size of next field */ | |
381 | struct xfs_chash *m_chash; /* fs private inode per-cluster | |
382 | * hash table */ | |
383 | struct xfs_dmops m_dm_ops; /* vector of DMI ops */ | |
384 | struct xfs_qmops m_qm_ops; /* vector of XQM ops */ | |
385 | struct xfs_ioops m_io_ops; /* vector of I/O ops */ | |
386 | atomic_t m_active_trans; /* number trans frozen */ | |
387 | } xfs_mount_t; | |
388 | ||
389 | /* | |
390 | * Flags for m_flags. | |
391 | */ | |
392 | #define XFS_MOUNT_WSYNC 0x00000001 /* for nfs - all metadata ops | |
393 | must be synchronous except | |
394 | for space allocations */ | |
395 | #define XFS_MOUNT_INO64 0x00000002 | |
396 | /* 0x00000004 -- currently unused */ | |
397 | /* 0x00000008 -- currently unused */ | |
398 | #define XFS_MOUNT_FS_SHUTDOWN 0x00000010 /* atomic stop of all filesystem | |
399 | operations, typically for | |
400 | disk errors in metadata */ | |
401 | #define XFS_MOUNT_NOATIME 0x00000020 /* don't modify inode access | |
402 | times on reads */ | |
403 | #define XFS_MOUNT_RETERR 0x00000040 /* return alignment errors to | |
404 | user */ | |
405 | #define XFS_MOUNT_NOALIGN 0x00000080 /* turn off stripe alignment | |
406 | allocations */ | |
407 | /* 0x00000100 -- currently unused */ | |
408 | /* 0x00000200 -- currently unused */ | |
409 | #define XFS_MOUNT_NORECOVERY 0x00000400 /* no recovery - dirty fs */ | |
410 | #define XFS_MOUNT_SHARED 0x00000800 /* shared mount */ | |
411 | #define XFS_MOUNT_DFLT_IOSIZE 0x00001000 /* set default i/o size */ | |
412 | #define XFS_MOUNT_OSYNCISOSYNC 0x00002000 /* o_sync is REALLY o_sync */ | |
413 | /* osyncisdsync is now default*/ | |
414 | #define XFS_MOUNT_32BITINODES 0x00004000 /* do not create inodes above | |
415 | * 32 bits in size */ | |
416 | #define XFS_MOUNT_32BITINOOPT 0x00008000 /* saved mount option state */ | |
417 | #define XFS_MOUNT_NOUUID 0x00010000 /* ignore uuid during mount */ | |
418 | #define XFS_MOUNT_NOLOGFLUSH 0x00020000 | |
419 | #define XFS_MOUNT_IDELETE 0x00040000 /* delete empty inode clusters*/ | |
420 | #define XFS_MOUNT_SWALLOC 0x00080000 /* turn on stripe width | |
421 | * allocation */ | |
422 | #define XFS_MOUNT_IHASHSIZE 0x00100000 /* inode hash table size */ | |
423 | #define XFS_MOUNT_DIRSYNC 0x00200000 /* synchronous directory ops */ | |
424 | ||
425 | /* | |
426 | * Default minimum read and write sizes. | |
427 | */ | |
428 | #define XFS_READIO_LOG_LARGE 16 | |
429 | #define XFS_WRITEIO_LOG_LARGE 16 | |
430 | ||
431 | /* | |
1f443ad7 NS |
432 | * Max and min values for mount-option defined I/O |
433 | * preallocation sizes. | |
1da177e4 | 434 | */ |
1f443ad7 | 435 | #define XFS_MAX_IO_LOG 30 /* 1G */ |
1da177e4 LT |
436 | #define XFS_MIN_IO_LOG PAGE_SHIFT |
437 | ||
438 | /* | |
439 | * Synchronous read and write sizes. This should be | |
440 | * better for NFSv2 wsync filesystems. | |
441 | */ | |
442 | #define XFS_WSYNC_READIO_LOG 15 /* 32K */ | |
443 | #define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */ | |
444 | ||
445 | #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) | |
446 | ||
447 | #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) | |
448 | #define xfs_force_shutdown(m,f) \ | |
449 | VFS_FORCE_SHUTDOWN((XFS_MTOVFS(m)), f, __FILE__, __LINE__) | |
450 | ||
451 | /* | |
452 | * Flags sent to xfs_force_shutdown. | |
453 | */ | |
454 | #define XFS_METADATA_IO_ERROR 0x1 | |
455 | #define XFS_LOG_IO_ERROR 0x2 | |
456 | #define XFS_FORCE_UMOUNT 0x4 | |
457 | #define XFS_CORRUPT_INCORE 0x8 /* Corrupt in-memory data structures */ | |
458 | #define XFS_SHUTDOWN_REMOTE_REQ 0x10 /* Shutdown came from remote cell */ | |
459 | ||
460 | /* | |
461 | * xflags for xfs_syncsub | |
462 | */ | |
463 | #define XFS_XSYNC_RELOC 0x01 | |
464 | ||
465 | /* | |
466 | * Flags for xfs_mountfs | |
467 | */ | |
468 | #define XFS_MFSI_SECOND 0x01 /* Secondary mount -- skip stuff */ | |
469 | #define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */ | |
470 | #define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */ | |
471 | /* log recovery */ | |
472 | #define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */ | |
473 | ||
474 | /* | |
475 | * Macros for getting from mount to vfs and back. | |
476 | */ | |
477 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MTOVFS) | |
478 | struct vfs *xfs_mtovfs(xfs_mount_t *mp); | |
479 | #define XFS_MTOVFS(mp) xfs_mtovfs(mp) | |
480 | #else | |
481 | #define XFS_MTOVFS(mp) (bhvtovfs(&(mp)->m_bhv)) | |
482 | #endif | |
483 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BHVTOM) | |
484 | xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp); | |
485 | #define XFS_BHVTOM(bdp) xfs_bhvtom(bdp) | |
486 | #else | |
487 | #define XFS_BHVTOM(bdp) ((xfs_mount_t *)BHV_PDATA(bdp)) | |
488 | #endif | |
489 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_VFSTOM) | |
490 | xfs_mount_t *xfs_vfstom(vfs_t *vfs); | |
491 | #define XFS_VFSTOM(vfs) xfs_vfstom(vfs) | |
492 | #else | |
493 | #define XFS_VFSTOM(vfs) \ | |
494 | (XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfs), &xfs_vfsops))) | |
495 | #endif | |
496 | ||
497 | ||
498 | /* | |
499 | * Moved here from xfs_ag.h to avoid reordering header files | |
500 | */ | |
501 | ||
502 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGNO) | |
503 | xfs_agnumber_t xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d); | |
504 | #define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d) | |
505 | #else | |
506 | ||
507 | static inline xfs_agnumber_t XFS_DADDR_TO_AGNO(xfs_mount_t *mp, xfs_daddr_t d) | |
508 | { | |
509 | d = XFS_BB_TO_FSBT(mp, d); | |
510 | do_div(d, mp->m_sb.sb_agblocks); | |
511 | return (xfs_agnumber_t) d; | |
512 | } | |
513 | ||
514 | #endif | |
515 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGBNO) | |
516 | xfs_agblock_t xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d); | |
517 | #define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d) | |
518 | #else | |
519 | ||
520 | static inline xfs_agblock_t XFS_DADDR_TO_AGBNO(xfs_mount_t *mp, xfs_daddr_t d) | |
521 | { | |
522 | d = XFS_BB_TO_FSBT(mp, d); | |
523 | return (xfs_agblock_t) do_div(d, mp->m_sb.sb_agblocks); | |
524 | } | |
525 | ||
526 | #endif | |
527 | ||
528 | /* | |
529 | * This structure is for use by the xfs_mod_incore_sb_batch() routine. | |
530 | */ | |
531 | typedef struct xfs_mod_sb { | |
532 | xfs_sb_field_t msb_field; /* Field to modify, see below */ | |
533 | int msb_delta; /* Change to make to specified field */ | |
534 | } xfs_mod_sb_t; | |
535 | ||
536 | #define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock), PINOD) | |
537 | #define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock)) | |
538 | #define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock) | |
539 | #define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s)) | |
540 | ||
541 | extern xfs_mount_t *xfs_mount_init(void); | |
542 | extern void xfs_mod_sb(xfs_trans_t *, __int64_t); | |
543 | extern void xfs_mount_free(xfs_mount_t *mp, int remove_bhv); | |
544 | extern int xfs_mountfs(struct vfs *, xfs_mount_t *mp, int); | |
545 | ||
546 | extern int xfs_unmountfs(xfs_mount_t *, struct cred *); | |
1da177e4 LT |
547 | extern void xfs_unmountfs_close(xfs_mount_t *, struct cred *); |
548 | extern int xfs_unmountfs_writesb(xfs_mount_t *); | |
549 | extern int xfs_unmount_flush(xfs_mount_t *, int); | |
550 | extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int, int); | |
551 | extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, | |
552 | uint, int); | |
553 | extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); | |
554 | extern int xfs_readsb(xfs_mount_t *mp); | |
555 | extern void xfs_freesb(xfs_mount_t *); | |
556 | extern void xfs_do_force_shutdown(bhv_desc_t *, int, char *, int); | |
557 | extern int xfs_syncsub(xfs_mount_t *, int, int, int *); | |
558 | extern xfs_agnumber_t xfs_initialize_perag(xfs_mount_t *, xfs_agnumber_t); | |
559 | extern void xfs_xlatesb(void *, struct xfs_sb *, int, __int64_t); | |
560 | ||
561 | extern struct vfsops xfs_vfsops; | |
562 | extern struct vnodeops xfs_vnodeops; | |
563 | ||
564 | extern struct xfs_dmops xfs_dmcore_stub; | |
565 | extern struct xfs_qmops xfs_qmcore_stub; | |
566 | extern struct xfs_ioops xfs_iocore_xfs; | |
567 | ||
568 | extern int xfs_init(void); | |
569 | extern void xfs_cleanup(void); | |
570 | ||
571 | #endif /* __KERNEL__ */ | |
572 | ||
573 | #endif /* __XFS_MOUNT_H__ */ |