Commit | Line | Data |
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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 | ||
03135cf7 | 21 | |
1da177e4 LT |
22 | typedef struct xfs_trans_reservations { |
23 | uint tr_write; /* extent alloc trans */ | |
24 | uint tr_itruncate; /* truncate trans */ | |
25 | uint tr_rename; /* rename trans */ | |
26 | uint tr_link; /* link trans */ | |
27 | uint tr_remove; /* unlink trans */ | |
28 | uint tr_symlink; /* symlink trans */ | |
29 | uint tr_create; /* create trans */ | |
30 | uint tr_mkdir; /* mkdir trans */ | |
31 | uint tr_ifree; /* inode free trans */ | |
32 | uint tr_ichange; /* inode update trans */ | |
33 | uint tr_growdata; /* fs data section grow trans */ | |
34 | uint tr_swrite; /* sync write inode trans */ | |
35 | uint tr_addafork; /* cvt inode to attributed trans */ | |
36 | uint tr_writeid; /* write setuid/setgid file */ | |
37 | uint tr_attrinval; /* attr fork buffer invalidation */ | |
38 | uint tr_attrset; /* set/create an attribute */ | |
39 | uint tr_attrrm; /* remove an attribute */ | |
40 | uint tr_clearagi; /* clear bad agi unlinked ino bucket */ | |
41 | uint tr_growrtalloc; /* grow realtime allocations */ | |
42 | uint tr_growrtzero; /* grow realtime zeroing */ | |
43 | uint tr_growrtfree; /* grow realtime freeing */ | |
44 | } xfs_trans_reservations_t; | |
45 | ||
1da177e4 LT |
46 | #ifndef __KERNEL__ |
47 | /* | |
48 | * Moved here from xfs_ag.h to avoid reordering header files | |
49 | */ | |
50 | #define XFS_DADDR_TO_AGNO(mp,d) \ | |
51 | ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks)) | |
52 | #define XFS_DADDR_TO_AGBNO(mp,d) \ | |
53 | ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks)) | |
54 | #else | |
55 | struct cred; | |
56 | struct log; | |
b83bd138 | 57 | struct bhv_vfs; |
67fcaa73 | 58 | struct bhv_vnode; |
1da177e4 | 59 | struct xfs_mount_args; |
1da177e4 | 60 | struct xfs_inode; |
1da177e4 LT |
61 | struct xfs_iocore; |
62 | struct xfs_bmbt_irec; | |
63 | struct xfs_bmap_free; | |
3e57ecf6 OW |
64 | struct xfs_extdelta; |
65 | struct xfs_swapext; | |
2a82b8be | 66 | struct xfs_mru_cache; |
1da177e4 | 67 | |
b83bd138 | 68 | extern struct bhv_vfsops xfs_vfsops; |
a844f451 | 69 | |
1da177e4 LT |
70 | #define AIL_LOCK_T lock_t |
71 | #define AIL_LOCKINIT(x,y) spinlock_init(x,y) | |
72 | #define AIL_LOCK_DESTROY(x) spinlock_destroy(x) | |
73 | #define AIL_LOCK(mp,s) s=mutex_spinlock(&(mp)->m_ail_lock) | |
74 | #define AIL_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_ail_lock, s) | |
75 | ||
76 | ||
77 | /* | |
78 | * Prototypes and functions for the Data Migration subsystem. | |
79 | */ | |
80 | ||
67fcaa73 | 81 | typedef int (*xfs_send_data_t)(int, struct bhv_vnode *, |
8285fb58 | 82 | xfs_off_t, size_t, int, bhv_vrwlock_t *); |
1da177e4 | 83 | typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); |
67fcaa73 | 84 | typedef int (*xfs_send_destroy_t)(struct bhv_vnode *, dm_right_t); |
b83bd138 | 85 | typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct bhv_vfs *, |
67fcaa73 NS |
86 | struct bhv_vnode *, |
87 | dm_right_t, struct bhv_vnode *, dm_right_t, | |
1da177e4 | 88 | char *, char *, mode_t, int, int); |
67fcaa73 | 89 | typedef void (*xfs_send_unmount_t)(struct bhv_vfs *, struct bhv_vnode *, |
1da177e4 LT |
90 | dm_right_t, mode_t, int, int); |
91 | ||
92 | typedef struct xfs_dmops { | |
93 | xfs_send_data_t xfs_send_data; | |
94 | xfs_send_mmap_t xfs_send_mmap; | |
95 | xfs_send_destroy_t xfs_send_destroy; | |
96 | xfs_send_namesp_t xfs_send_namesp; | |
97 | xfs_send_unmount_t xfs_send_unmount; | |
98 | } xfs_dmops_t; | |
99 | ||
100 | #define XFS_SEND_DATA(mp, ev,vp,off,len,fl,lock) \ | |
101 | (*(mp)->m_dm_ops.xfs_send_data)(ev,vp,off,len,fl,lock) | |
102 | #define XFS_SEND_MMAP(mp, vma,fl) \ | |
103 | (*(mp)->m_dm_ops.xfs_send_mmap)(vma,fl) | |
104 | #define XFS_SEND_DESTROY(mp, vp,right) \ | |
105 | (*(mp)->m_dm_ops.xfs_send_destroy)(vp,right) | |
106 | #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ | |
107 | (*(mp)->m_dm_ops.xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) | |
108 | #define XFS_SEND_PREUNMOUNT(mp, vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ | |
109 | (*(mp)->m_dm_ops.xfs_send_namesp)(DM_EVENT_PREUNMOUNT,vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) | |
110 | #define XFS_SEND_UNMOUNT(mp, vfsp,vp,right,mode,rval,fl) \ | |
111 | (*(mp)->m_dm_ops.xfs_send_unmount)(vfsp,vp,right,mode,rval,fl) | |
112 | ||
113 | ||
114 | /* | |
115 | * Prototypes and functions for the Quota Management subsystem. | |
116 | */ | |
117 | ||
118 | struct xfs_dquot; | |
119 | struct xfs_dqtrxops; | |
120 | struct xfs_quotainfo; | |
121 | ||
122 | typedef int (*xfs_qminit_t)(struct xfs_mount *, uint *, uint *); | |
123 | typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int); | |
124 | typedef int (*xfs_qmunmount_t)(struct xfs_mount *); | |
125 | typedef void (*xfs_qmdone_t)(struct xfs_mount *); | |
126 | typedef void (*xfs_dqrele_t)(struct xfs_dquot *); | |
127 | typedef int (*xfs_dqattach_t)(struct xfs_inode *, uint); | |
128 | typedef void (*xfs_dqdetach_t)(struct xfs_inode *); | |
129 | typedef int (*xfs_dqpurgeall_t)(struct xfs_mount *, uint); | |
130 | typedef int (*xfs_dqvopalloc_t)(struct xfs_mount *, | |
c8ad20ff | 131 | struct xfs_inode *, uid_t, gid_t, prid_t, uint, |
1da177e4 LT |
132 | struct xfs_dquot **, struct xfs_dquot **); |
133 | typedef void (*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *, | |
134 | struct xfs_dquot *, struct xfs_dquot *); | |
135 | typedef int (*xfs_dqvoprename_t)(struct xfs_inode **); | |
136 | typedef struct xfs_dquot * (*xfs_dqvopchown_t)( | |
137 | struct xfs_trans *, struct xfs_inode *, | |
138 | struct xfs_dquot **, struct xfs_dquot *); | |
139 | typedef int (*xfs_dqvopchownresv_t)(struct xfs_trans *, struct xfs_inode *, | |
140 | struct xfs_dquot *, struct xfs_dquot *, uint); | |
141 | ||
142 | typedef struct xfs_qmops { | |
143 | xfs_qminit_t xfs_qminit; | |
144 | xfs_qmdone_t xfs_qmdone; | |
145 | xfs_qmmount_t xfs_qmmount; | |
146 | xfs_qmunmount_t xfs_qmunmount; | |
147 | xfs_dqrele_t xfs_dqrele; | |
148 | xfs_dqattach_t xfs_dqattach; | |
149 | xfs_dqdetach_t xfs_dqdetach; | |
150 | xfs_dqpurgeall_t xfs_dqpurgeall; | |
151 | xfs_dqvopalloc_t xfs_dqvopalloc; | |
152 | xfs_dqvopcreate_t xfs_dqvopcreate; | |
153 | xfs_dqvoprename_t xfs_dqvoprename; | |
154 | xfs_dqvopchown_t xfs_dqvopchown; | |
155 | xfs_dqvopchownresv_t xfs_dqvopchownresv; | |
156 | struct xfs_dqtrxops *xfs_dqtrxops; | |
157 | } xfs_qmops_t; | |
158 | ||
159 | #define XFS_QM_INIT(mp, mnt, fl) \ | |
160 | (*(mp)->m_qm_ops.xfs_qminit)(mp, mnt, fl) | |
161 | #define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \ | |
162 | (*(mp)->m_qm_ops.xfs_qmmount)(mp, mnt, fl, mfsi_flags) | |
163 | #define XFS_QM_UNMOUNT(mp) \ | |
164 | (*(mp)->m_qm_ops.xfs_qmunmount)(mp) | |
165 | #define XFS_QM_DONE(mp) \ | |
166 | (*(mp)->m_qm_ops.xfs_qmdone)(mp) | |
167 | #define XFS_QM_DQRELE(mp, dq) \ | |
168 | (*(mp)->m_qm_ops.xfs_dqrele)(dq) | |
169 | #define XFS_QM_DQATTACH(mp, ip, fl) \ | |
170 | (*(mp)->m_qm_ops.xfs_dqattach)(ip, fl) | |
171 | #define XFS_QM_DQDETACH(mp, ip) \ | |
172 | (*(mp)->m_qm_ops.xfs_dqdetach)(ip) | |
173 | #define XFS_QM_DQPURGEALL(mp, fl) \ | |
174 | (*(mp)->m_qm_ops.xfs_dqpurgeall)(mp, fl) | |
c8ad20ff NS |
175 | #define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, prid, fl, dq1, dq2) \ |
176 | (*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, prid, fl, dq1, dq2) | |
1da177e4 LT |
177 | #define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \ |
178 | (*(mp)->m_qm_ops.xfs_dqvopcreate)(tp, ip, dq1, dq2) | |
179 | #define XFS_QM_DQVOPRENAME(mp, ip) \ | |
180 | (*(mp)->m_qm_ops.xfs_dqvoprename)(ip) | |
181 | #define XFS_QM_DQVOPCHOWN(mp, tp, ip, dqp, dq) \ | |
182 | (*(mp)->m_qm_ops.xfs_dqvopchown)(tp, ip, dqp, dq) | |
183 | #define XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, dq1, dq2, fl) \ | |
184 | (*(mp)->m_qm_ops.xfs_dqvopchownresv)(tp, ip, dq1, dq2, fl) | |
185 | ||
186 | ||
187 | /* | |
188 | * Prototypes and functions for I/O core modularization. | |
189 | */ | |
190 | ||
b83bd138 | 191 | typedef int (*xfs_ioinit_t)(struct bhv_vfs *, |
1da177e4 LT |
192 | struct xfs_mount_args *, int); |
193 | typedef int (*xfs_bmapi_t)(struct xfs_trans *, void *, | |
194 | xfs_fileoff_t, xfs_filblks_t, int, | |
195 | xfs_fsblock_t *, xfs_extlen_t, | |
196 | struct xfs_bmbt_irec *, int *, | |
3e57ecf6 OW |
197 | struct xfs_bmap_free *, struct xfs_extdelta *); |
198 | typedef int (*xfs_bunmapi_t)(struct xfs_trans *, | |
199 | void *, xfs_fileoff_t, | |
200 | xfs_filblks_t, int, xfs_extnum_t, | |
201 | xfs_fsblock_t *, struct xfs_bmap_free *, | |
202 | struct xfs_extdelta *, int *); | |
1da177e4 LT |
203 | typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *); |
204 | typedef int (*xfs_iomap_write_direct_t)( | |
f403b7f4 | 205 | void *, xfs_off_t, size_t, int, |
1da177e4 LT |
206 | struct xfs_bmbt_irec *, int *, int); |
207 | typedef int (*xfs_iomap_write_delay_t)( | |
f403b7f4 | 208 | void *, xfs_off_t, size_t, int, |
1da177e4 LT |
209 | struct xfs_bmbt_irec *, int *); |
210 | typedef int (*xfs_iomap_write_allocate_t)( | |
f403b7f4 | 211 | void *, xfs_off_t, size_t, |
24e17b5f | 212 | struct xfs_bmbt_irec *, int *); |
1da177e4 | 213 | typedef int (*xfs_iomap_write_unwritten_t)( |
f403b7f4 | 214 | void *, xfs_off_t, size_t); |
1da177e4 LT |
215 | typedef uint (*xfs_lck_map_shared_t)(void *); |
216 | typedef void (*xfs_lock_t)(void *, uint); | |
217 | typedef void (*xfs_lock_demote_t)(void *, uint); | |
218 | typedef int (*xfs_lock_nowait_t)(void *, uint); | |
219 | typedef void (*xfs_unlk_t)(void *, unsigned int); | |
220 | typedef xfs_fsize_t (*xfs_size_t)(void *); | |
b83bd138 | 221 | typedef xfs_fsize_t (*xfs_iodone_t)(struct bhv_vfs *); |
3e57ecf6 OW |
222 | typedef int (*xfs_swap_extents_t)(void *, void *, |
223 | struct xfs_swapext*); | |
1da177e4 LT |
224 | |
225 | typedef struct xfs_ioops { | |
226 | xfs_ioinit_t xfs_ioinit; | |
227 | xfs_bmapi_t xfs_bmapi_func; | |
3e57ecf6 | 228 | xfs_bunmapi_t xfs_bunmapi_func; |
1da177e4 LT |
229 | xfs_bmap_eof_t xfs_bmap_eof_func; |
230 | xfs_iomap_write_direct_t xfs_iomap_write_direct; | |
231 | xfs_iomap_write_delay_t xfs_iomap_write_delay; | |
232 | xfs_iomap_write_allocate_t xfs_iomap_write_allocate; | |
233 | xfs_iomap_write_unwritten_t xfs_iomap_write_unwritten; | |
234 | xfs_lock_t xfs_ilock; | |
235 | xfs_lck_map_shared_t xfs_lck_map_shared; | |
236 | xfs_lock_demote_t xfs_ilock_demote; | |
237 | xfs_lock_nowait_t xfs_ilock_nowait; | |
238 | xfs_unlk_t xfs_unlock; | |
239 | xfs_size_t xfs_size_func; | |
240 | xfs_iodone_t xfs_iodone; | |
3e57ecf6 | 241 | xfs_swap_extents_t xfs_swap_extents_func; |
1da177e4 LT |
242 | } xfs_ioops_t; |
243 | ||
244 | #define XFS_IOINIT(vfsp, args, flags) \ | |
245 | (*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags) | |
3e57ecf6 | 246 | #define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist,delta) \ |
1da177e4 | 247 | (*(mp)->m_io_ops.xfs_bmapi_func) \ |
3e57ecf6 OW |
248 | (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist,delta) |
249 | #define XFS_BUNMAPI(mp, trans,io,bno,len,f,nexts,first,flist,delta,done) \ | |
250 | (*(mp)->m_io_ops.xfs_bunmapi_func) \ | |
251 | (trans,(io)->io_obj,bno,len,f,nexts,first,flist,delta,done) | |
1da177e4 LT |
252 | #define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \ |
253 | (*(mp)->m_io_ops.xfs_bmap_eof_func) \ | |
254 | ((io)->io_obj, endoff, whichfork, eof) | |
255 | #define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\ | |
256 | (*(mp)->m_io_ops.xfs_iomap_write_direct) \ | |
257 | ((io)->io_obj, offset, count, flags, mval, nmap, found) | |
258 | #define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \ | |
259 | (*(mp)->m_io_ops.xfs_iomap_write_delay) \ | |
260 | ((io)->io_obj, offset, count, flags, mval, nmap) | |
24e17b5f | 261 | #define XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count, mval, nmap) \ |
1da177e4 | 262 | (*(mp)->m_io_ops.xfs_iomap_write_allocate) \ |
24e17b5f | 263 | ((io)->io_obj, offset, count, mval, nmap) |
1da177e4 LT |
264 | #define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \ |
265 | (*(mp)->m_io_ops.xfs_iomap_write_unwritten) \ | |
266 | ((io)->io_obj, offset, count) | |
267 | #define XFS_LCK_MAP_SHARED(mp, io) \ | |
268 | (*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj) | |
269 | #define XFS_ILOCK(mp, io, mode) \ | |
270 | (*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode) | |
271 | #define XFS_ILOCK_NOWAIT(mp, io, mode) \ | |
272 | (*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode) | |
273 | #define XFS_IUNLOCK(mp, io, mode) \ | |
274 | (*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode) | |
275 | #define XFS_ILOCK_DEMOTE(mp, io, mode) \ | |
276 | (*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode) | |
277 | #define XFS_SIZE(mp, io) \ | |
278 | (*(mp)->m_io_ops.xfs_size_func)((io)->io_obj) | |
279 | #define XFS_IODONE(vfsp) \ | |
280 | (*(mp)->m_io_ops.xfs_iodone)(vfsp) | |
3e57ecf6 OW |
281 | #define XFS_SWAP_EXTENTS(mp, io, tio, sxp) \ |
282 | (*(mp)->m_io_ops.xfs_swap_extents_func) \ | |
283 | ((io)->io_obj, (tio)->io_obj, sxp) | |
1da177e4 | 284 | |
8d280b98 DC |
285 | #ifdef HAVE_PERCPU_SB |
286 | ||
287 | /* | |
288 | * Valid per-cpu incore superblock counters. Note that if you add new counters, | |
289 | * you may need to define new counter disabled bit field descriptors as there | |
290 | * are more possible fields in the superblock that can fit in a bitfield on a | |
291 | * 32 bit platform. The XFS_SBS_* values for the current current counters just | |
292 | * fit. | |
293 | */ | |
294 | typedef struct xfs_icsb_cnts { | |
295 | uint64_t icsb_fdblocks; | |
296 | uint64_t icsb_ifree; | |
297 | uint64_t icsb_icount; | |
01e1b69c | 298 | unsigned long icsb_flags; |
8d280b98 DC |
299 | } xfs_icsb_cnts_t; |
300 | ||
01e1b69c DC |
301 | #define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */ |
302 | ||
8d280b98 DC |
303 | #define XFS_ICSB_SB_LOCKED (1 << 0) /* sb already locked */ |
304 | #define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */ | |
305 | ||
306 | extern int xfs_icsb_init_counters(struct xfs_mount *); | |
5478eead | 307 | extern void xfs_icsb_reinit_counters(struct xfs_mount *); |
dbcabad1 | 308 | extern void xfs_icsb_sync_counters_flags(struct xfs_mount *, int); |
8d280b98 DC |
309 | |
310 | #else | |
311 | #define xfs_icsb_init_counters(mp) (0) | |
5478eead | 312 | #define xfs_icsb_reinit_counters(mp) do { } while (0) |
c97be736 | 313 | #define xfs_icsb_sync_counters_flags(mp, flags) do { } while (0) |
8d280b98 | 314 | #endif |
1da177e4 LT |
315 | |
316 | typedef struct xfs_mount { | |
317 | bhv_desc_t m_bhv; /* vfs xfs behavior */ | |
318 | xfs_tid_t m_tid; /* next unused tid for fs */ | |
319 | AIL_LOCK_T m_ail_lock; /* fs AIL mutex */ | |
320 | xfs_ail_entry_t m_ail; /* fs active log item list */ | |
321 | uint m_ail_gen; /* fs AIL generation count */ | |
322 | xfs_sb_t m_sb; /* copy of fs superblock */ | |
323 | lock_t m_sb_lock; /* sb counter mutex */ | |
324 | struct xfs_buf *m_sb_bp; /* buffer for superblock */ | |
325 | char *m_fsname; /* filesystem name */ | |
326 | int m_fsname_len; /* strlen of fs name */ | |
fc1f8c1c NS |
327 | char *m_rtname; /* realtime device name */ |
328 | char *m_logname; /* external log device name */ | |
1da177e4 LT |
329 | int m_bsize; /* fs logical block size */ |
330 | xfs_agnumber_t m_agfrotor; /* last ag where space found */ | |
331 | xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ | |
332 | lock_t m_agirotor_lock;/* .. and lock protecting it */ | |
333 | xfs_agnumber_t m_maxagi; /* highest inode alloc group */ | |
1da177e4 LT |
334 | struct xfs_inode *m_inodes; /* active inode list */ |
335 | struct list_head m_del_inodes; /* inodes to reclaim */ | |
336 | mutex_t m_ilock; /* inode list mutex */ | |
337 | uint m_ireclaims; /* count of calls to reclaim*/ | |
338 | uint m_readio_log; /* min read size log bytes */ | |
339 | uint m_readio_blocks; /* min read size blocks */ | |
340 | uint m_writeio_log; /* min write size log bytes */ | |
341 | uint m_writeio_blocks; /* min write size blocks */ | |
342 | struct log *m_log; /* log specific stuff */ | |
343 | int m_logbufs; /* number of log buffers */ | |
344 | int m_logbsize; /* size of each log buffer */ | |
345 | uint m_rsumlevels; /* rt summary levels */ | |
346 | uint m_rsumsize; /* size of rt summary, bytes */ | |
347 | struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ | |
348 | struct xfs_inode *m_rsumip; /* pointer to summary inode */ | |
349 | struct xfs_inode *m_rootip; /* pointer to root directory */ | |
350 | struct xfs_quotainfo *m_quotainfo; /* disk quota information */ | |
351 | xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ | |
352 | xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ | |
353 | xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ | |
1da177e4 LT |
354 | __uint8_t m_dircook_elog; /* log d-cookie entry bits */ |
355 | __uint8_t m_blkbit_log; /* blocklog + NBBY */ | |
356 | __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ | |
357 | __uint8_t m_agno_log; /* log #ag's */ | |
358 | __uint8_t m_agino_log; /* #bits for agino in inum */ | |
1da177e4 LT |
359 | __uint16_t m_inode_cluster_size;/* min inode buf size */ |
360 | uint m_blockmask; /* sb_blocksize-1 */ | |
361 | uint m_blockwsize; /* sb_blocksize in words */ | |
362 | uint m_blockwmask; /* blockwsize-1 */ | |
363 | uint m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */ | |
364 | uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */ | |
365 | uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */ | |
366 | uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */ | |
367 | uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */ | |
368 | uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */ | |
369 | uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ | |
370 | uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ | |
371 | uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */ | |
372 | struct xfs_perag *m_perag; /* per-ag accounting info */ | |
373 | struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */ | |
374 | sema_t m_growlock; /* growfs mutex */ | |
375 | int m_fixedfsid[2]; /* unchanged for life of FS */ | |
376 | uint m_dmevmask; /* DMI events for this FS */ | |
e718eeb4 | 377 | __uint64_t m_flags; /* global mount flags */ |
1da177e4 LT |
378 | uint m_attroffset; /* inode attribute offset */ |
379 | uint m_dir_node_ents; /* #entries in a dir danode */ | |
380 | uint m_attr_node_ents; /* #entries in attr danode */ | |
381 | int m_ialloc_inos; /* inodes in inode allocation */ | |
382 | int m_ialloc_blks; /* blocks in inode allocation */ | |
383 | int m_litino; /* size of inode union area */ | |
384 | int m_inoalign_mask;/* mask sb_inoalignmt if used */ | |
385 | uint m_qflags; /* quota status flags */ | |
386 | xfs_trans_reservations_t m_reservations;/* precomputed res values */ | |
387 | __uint64_t m_maxicount; /* maximum inode count */ | |
388 | __uint64_t m_maxioffset; /* maximum inode offset */ | |
389 | __uint64_t m_resblks; /* total reserved blocks */ | |
390 | __uint64_t m_resblks_avail;/* available reserved blocks */ | |
391 | #if XFS_BIG_INUMS | |
392 | xfs_ino_t m_inoadd; /* add value for ino64_offset */ | |
393 | #endif | |
394 | int m_dalign; /* stripe unit */ | |
395 | int m_swidth; /* stripe width */ | |
c41564b5 | 396 | int m_sinoalign; /* stripe unit inode alignment */ |
1da177e4 LT |
397 | int m_attr_magicpct;/* 37% of the blocksize */ |
398 | int m_dir_magicpct; /* 37% of the dir blocksize */ | |
399 | __uint8_t m_mk_sharedro; /* mark shared ro on unmount */ | |
400 | __uint8_t m_inode_quiesce;/* call quiesce on new inodes. | |
401 | field governed by m_ilock */ | |
402 | __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ | |
1da177e4 LT |
403 | int m_dirblksize; /* directory block sz--bytes */ |
404 | int m_dirblkfsbs; /* directory block sz--fsbs */ | |
405 | xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ | |
406 | xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ | |
407 | xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ | |
408 | uint m_chsize; /* size of next field */ | |
409 | struct xfs_chash *m_chash; /* fs private inode per-cluster | |
410 | * hash table */ | |
411 | struct xfs_dmops m_dm_ops; /* vector of DMI ops */ | |
412 | struct xfs_qmops m_qm_ops; /* vector of XQM ops */ | |
413 | struct xfs_ioops m_io_ops; /* vector of I/O ops */ | |
414 | atomic_t m_active_trans; /* number trans frozen */ | |
8d280b98 DC |
415 | #ifdef HAVE_PERCPU_SB |
416 | xfs_icsb_cnts_t *m_sb_cnts; /* per-cpu superblock counters */ | |
417 | unsigned long m_icsb_counters; /* disabled per-cpu counters */ | |
e8234a68 | 418 | struct notifier_block m_icsb_notifier; /* hotplug cpu notifier */ |
20b64285 | 419 | struct mutex m_icsb_mutex; /* balancer sync lock */ |
8d280b98 | 420 | #endif |
2a82b8be | 421 | struct xfs_mru_cache *m_filestream; /* per-mount filestream data */ |
1da177e4 LT |
422 | } xfs_mount_t; |
423 | ||
424 | /* | |
425 | * Flags for m_flags. | |
426 | */ | |
92821e2b | 427 | #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops |
1da177e4 LT |
428 | must be synchronous except |
429 | for space allocations */ | |
92821e2b | 430 | #define XFS_MOUNT_INO64 (1ULL << 1) |
e718eeb4 | 431 | /* (1ULL << 2) -- currently unused */ |
92821e2b | 432 | #define XFS_MOUNT_WAS_CLEAN (1ULL << 3) |
e718eeb4 | 433 | #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem |
1da177e4 LT |
434 | operations, typically for |
435 | disk errors in metadata */ | |
e718eeb4 | 436 | #define XFS_MOUNT_RETERR (1ULL << 6) /* return alignment errors to |
1da177e4 | 437 | user */ |
e718eeb4 | 438 | #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment |
1da177e4 | 439 | allocations */ |
13059ff0 | 440 | #define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */ |
e718eeb4 NS |
441 | /* (1ULL << 9) -- currently unused */ |
442 | #define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */ | |
443 | #define XFS_MOUNT_SHARED (1ULL << 11) /* shared mount */ | |
444 | #define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */ | |
445 | #define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */ | |
1da177e4 | 446 | /* osyncisdsync is now default*/ |
e718eeb4 | 447 | #define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above |
1da177e4 | 448 | * 32 bits in size */ |
c11e2c36 | 449 | /* (1ULL << 15) -- currently unused */ |
e718eeb4 NS |
450 | #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ |
451 | #define XFS_MOUNT_BARRIER (1ULL << 17) | |
452 | #define XFS_MOUNT_IDELETE (1ULL << 18) /* delete empty inode clusters*/ | |
453 | #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width | |
1da177e4 | 454 | * allocation */ |
da353b0d | 455 | /* (1ULL << 20) -- currently unused */ |
e718eeb4 NS |
456 | #define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */ |
457 | #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred | |
e8c8b3a7 | 458 | * I/O size in stat() */ |
8d280b98 DC |
459 | #define XFS_MOUNT_NO_PERCPU_SB (1ULL << 23) /* don't use per-cpu superblock |
460 | counters */ | |
2a82b8be DC |
461 | #define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams |
462 | allocator */ | |
e8c8b3a7 | 463 | |
1da177e4 LT |
464 | |
465 | /* | |
466 | * Default minimum read and write sizes. | |
467 | */ | |
468 | #define XFS_READIO_LOG_LARGE 16 | |
469 | #define XFS_WRITEIO_LOG_LARGE 16 | |
470 | ||
471 | /* | |
1f443ad7 NS |
472 | * Max and min values for mount-option defined I/O |
473 | * preallocation sizes. | |
1da177e4 | 474 | */ |
1f443ad7 | 475 | #define XFS_MAX_IO_LOG 30 /* 1G */ |
1da177e4 LT |
476 | #define XFS_MIN_IO_LOG PAGE_SHIFT |
477 | ||
478 | /* | |
479 | * Synchronous read and write sizes. This should be | |
480 | * better for NFSv2 wsync filesystems. | |
481 | */ | |
482 | #define XFS_WSYNC_READIO_LOG 15 /* 32K */ | |
483 | #define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */ | |
484 | ||
e8c8b3a7 DC |
485 | /* |
486 | * Allow large block sizes to be reported to userspace programs if the | |
487 | * "largeio" mount option is used. | |
488 | * | |
489 | * If compatibility mode is specified, simply return the basic unit of caching | |
490 | * so that we don't get inefficient read/modify/write I/O from user apps. | |
491 | * Otherwise.... | |
492 | * | |
493 | * If the underlying volume is a stripe, then return the stripe width in bytes | |
494 | * as the recommended I/O size. It is not a stripe and we've set a default | |
495 | * buffered I/O size, return that, otherwise return the compat default. | |
496 | */ | |
497 | static inline unsigned long | |
498 | xfs_preferred_iosize(xfs_mount_t *mp) | |
499 | { | |
500 | if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE) | |
501 | return PAGE_CACHE_SIZE; | |
502 | return (mp->m_swidth ? | |
503 | (mp->m_swidth << mp->m_sb.sb_blocklog) : | |
504 | ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ? | |
505 | (1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) : | |
506 | PAGE_CACHE_SIZE)); | |
507 | } | |
508 | ||
1da177e4 LT |
509 | #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) |
510 | ||
92821e2b DC |
511 | #define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \ |
512 | ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN) | |
1da177e4 LT |
513 | #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) |
514 | #define xfs_force_shutdown(m,f) \ | |
b83bd138 | 515 | bhv_vfs_force_shutdown((XFS_MTOVFS(m)), f, __FILE__, __LINE__) |
1da177e4 | 516 | |
1da177e4 LT |
517 | /* |
518 | * Flags for xfs_mountfs | |
519 | */ | |
520 | #define XFS_MFSI_SECOND 0x01 /* Secondary mount -- skip stuff */ | |
521 | #define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */ | |
764d1f89 | 522 | /* XFS_MFSI_RRINODES */ |
1da177e4 LT |
523 | #define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */ |
524 | /* log recovery */ | |
525 | #define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */ | |
764d1f89 NS |
526 | /* XFS_MFSI_CONVERT_SUNIT */ |
527 | #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */ | |
1da177e4 LT |
528 | |
529 | /* | |
530 | * Macros for getting from mount to vfs and back. | |
531 | */ | |
1da177e4 | 532 | #define XFS_MTOVFS(mp) xfs_mtovfs(mp) |
b83bd138 | 533 | static inline struct bhv_vfs *xfs_mtovfs(xfs_mount_t *mp) |
a844f451 NS |
534 | { |
535 | return bhvtovfs(&mp->m_bhv); | |
536 | } | |
1da177e4 | 537 | |
a844f451 NS |
538 | #define XFS_BHVTOM(bdp) xfs_bhvtom(bdp) |
539 | static inline xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp) | |
540 | { | |
541 | return (xfs_mount_t *)BHV_PDATA(bdp); | |
542 | } | |
1da177e4 | 543 | |
a844f451 | 544 | #define XFS_VFSTOM(vfs) xfs_vfstom(vfs) |
b83bd138 | 545 | static inline xfs_mount_t *xfs_vfstom(bhv_vfs_t *vfs) |
a844f451 | 546 | { |
fe48cae9 CH |
547 | return XFS_BHVTOM(bhv_lookup_range(VFS_BHVHEAD(vfs), |
548 | VFS_POSITION_XFS, VFS_POSITION_XFS)); | |
a844f451 | 549 | } |
1da177e4 | 550 | |
1da177e4 | 551 | #define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d) |
a844f451 NS |
552 | static inline xfs_agnumber_t |
553 | xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 554 | { |
a844f451 NS |
555 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
556 | do_div(ld, mp->m_sb.sb_agblocks); | |
557 | return (xfs_agnumber_t) ld; | |
1da177e4 LT |
558 | } |
559 | ||
1da177e4 | 560 | #define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d) |
a844f451 NS |
561 | static inline xfs_agblock_t |
562 | xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 563 | { |
a844f451 NS |
564 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
565 | return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks); | |
1da177e4 LT |
566 | } |
567 | ||
da353b0d DC |
568 | /* |
569 | * perag get/put wrappers for eventual ref counting | |
570 | */ | |
571 | static inline xfs_perag_t * | |
572 | xfs_get_perag(struct xfs_mount *mp, xfs_ino_t ino) | |
573 | { | |
574 | return &mp->m_perag[XFS_INO_TO_AGNO(mp, ino)]; | |
575 | } | |
576 | ||
577 | static inline void | |
578 | xfs_put_perag(struct xfs_mount *mp, xfs_perag_t *pag) | |
579 | { | |
580 | /* nothing to see here, move along */ | |
581 | } | |
582 | ||
03135cf7 DC |
583 | /* |
584 | * Per-cpu superblock locking functions | |
585 | */ | |
586 | #ifdef HAVE_PERCPU_SB | |
587 | STATIC_INLINE void | |
588 | xfs_icsb_lock(xfs_mount_t *mp) | |
589 | { | |
590 | mutex_lock(&mp->m_icsb_mutex); | |
591 | } | |
592 | ||
593 | STATIC_INLINE void | |
594 | xfs_icsb_unlock(xfs_mount_t *mp) | |
595 | { | |
596 | mutex_unlock(&mp->m_icsb_mutex); | |
597 | } | |
598 | #else | |
599 | #define xfs_icsb_lock(mp) | |
600 | #define xfs_icsb_unlock(mp) | |
601 | #endif | |
602 | ||
1da177e4 LT |
603 | /* |
604 | * This structure is for use by the xfs_mod_incore_sb_batch() routine. | |
20f4ebf2 | 605 | * xfs_growfs can specify a few fields which are more than int limit |
1da177e4 LT |
606 | */ |
607 | typedef struct xfs_mod_sb { | |
608 | xfs_sb_field_t msb_field; /* Field to modify, see below */ | |
20f4ebf2 | 609 | int64_t msb_delta; /* Change to make to specified field */ |
1da177e4 LT |
610 | } xfs_mod_sb_t; |
611 | ||
794ee1ba | 612 | #define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock)) |
1da177e4 LT |
613 | #define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock)) |
614 | #define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock) | |
615 | #define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s)) | |
616 | ||
617 | extern xfs_mount_t *xfs_mount_init(void); | |
618 | extern void xfs_mod_sb(xfs_trans_t *, __int64_t); | |
92821e2b | 619 | extern int xfs_log_sbcount(xfs_mount_t *, uint); |
1da177e4 | 620 | extern void xfs_mount_free(xfs_mount_t *mp, int remove_bhv); |
b83bd138 | 621 | extern int xfs_mountfs(struct bhv_vfs *, xfs_mount_t *mp, int); |
f538d4da | 622 | extern void xfs_mountfs_check_barriers(xfs_mount_t *mp); |
1da177e4 LT |
623 | |
624 | extern int xfs_unmountfs(xfs_mount_t *, struct cred *); | |
1da177e4 LT |
625 | extern void xfs_unmountfs_close(xfs_mount_t *, struct cred *); |
626 | extern int xfs_unmountfs_writesb(xfs_mount_t *); | |
627 | extern int xfs_unmount_flush(xfs_mount_t *, int); | |
20f4ebf2 | 628 | extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); |
8d280b98 | 629 | extern int xfs_mod_incore_sb_unlocked(xfs_mount_t *, xfs_sb_field_t, |
20f4ebf2 | 630 | int64_t, int); |
1da177e4 LT |
631 | extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, |
632 | uint, int); | |
633 | extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); | |
764d1f89 | 634 | extern int xfs_readsb(xfs_mount_t *, int); |
1da177e4 | 635 | extern void xfs_freesb(xfs_mount_t *); |
92821e2b | 636 | extern int xfs_fs_writable(xfs_mount_t *); |
1da177e4 | 637 | extern void xfs_do_force_shutdown(bhv_desc_t *, int, char *, int); |
1f9b3b64 LM |
638 | extern int xfs_syncsub(xfs_mount_t *, int, int *); |
639 | extern int xfs_sync_inodes(xfs_mount_t *, int, int *); | |
b83bd138 | 640 | extern xfs_agnumber_t xfs_initialize_perag(struct bhv_vfs *, xfs_mount_t *, |
c11e2c36 | 641 | xfs_agnumber_t); |
2bdf7cd0 CH |
642 | extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *); |
643 | extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t); | |
4cc929ee | 644 | extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t); |
1da177e4 | 645 | |
1da177e4 LT |
646 | extern struct xfs_dmops xfs_dmcore_stub; |
647 | extern struct xfs_qmops xfs_qmcore_stub; | |
648 | extern struct xfs_ioops xfs_iocore_xfs; | |
649 | ||
650 | extern int xfs_init(void); | |
651 | extern void xfs_cleanup(void); | |
652 | ||
653 | #endif /* __KERNEL__ */ | |
654 | ||
655 | #endif /* __XFS_MOUNT_H__ */ |