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 | ||
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; |
1da177e4 | 58 | struct xfs_mount_args; |
1da177e4 | 59 | struct xfs_inode; |
1da177e4 LT |
60 | struct xfs_iocore; |
61 | struct xfs_bmbt_irec; | |
62 | struct xfs_bmap_free; | |
3e57ecf6 OW |
63 | struct xfs_extdelta; |
64 | struct xfs_swapext; | |
2a82b8be | 65 | struct xfs_mru_cache; |
1da177e4 LT |
66 | |
67 | #define AIL_LOCK_T lock_t | |
68 | #define AIL_LOCKINIT(x,y) spinlock_init(x,y) | |
69 | #define AIL_LOCK_DESTROY(x) spinlock_destroy(x) | |
70 | #define AIL_LOCK(mp,s) s=mutex_spinlock(&(mp)->m_ail_lock) | |
71 | #define AIL_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_ail_lock, s) | |
72 | ||
73 | ||
74 | /* | |
75 | * Prototypes and functions for the Data Migration subsystem. | |
76 | */ | |
77 | ||
0a74cd19 | 78 | typedef int (*xfs_send_data_t)(int, bhv_vnode_t *, |
8285fb58 | 79 | xfs_off_t, size_t, int, bhv_vrwlock_t *); |
1da177e4 | 80 | typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); |
0a74cd19 | 81 | typedef int (*xfs_send_destroy_t)(bhv_vnode_t *, dm_right_t); |
b83bd138 | 82 | typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct bhv_vfs *, |
0a74cd19 CH |
83 | bhv_vnode_t *, |
84 | dm_right_t, bhv_vnode_t *, dm_right_t, | |
1da177e4 | 85 | char *, char *, mode_t, int, int); |
293688ec CH |
86 | typedef int (*xfs_send_mount_t)(struct xfs_mount *, dm_right_t, |
87 | char *, char *); | |
0a74cd19 | 88 | typedef void (*xfs_send_unmount_t)(struct bhv_vfs *, bhv_vnode_t *, |
1da177e4 LT |
89 | dm_right_t, mode_t, int, int); |
90 | ||
91 | typedef struct xfs_dmops { | |
92 | xfs_send_data_t xfs_send_data; | |
93 | xfs_send_mmap_t xfs_send_mmap; | |
94 | xfs_send_destroy_t xfs_send_destroy; | |
95 | xfs_send_namesp_t xfs_send_namesp; | |
293688ec | 96 | xfs_send_mount_t xfs_send_mount; |
1da177e4 LT |
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) \ | |
293688ec | 101 | (*(mp)->m_dm_ops->xfs_send_data)(ev,vp,off,len,fl,lock) |
1da177e4 | 102 | #define XFS_SEND_MMAP(mp, vma,fl) \ |
293688ec | 103 | (*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl) |
1da177e4 | 104 | #define XFS_SEND_DESTROY(mp, vp,right) \ |
293688ec | 105 | (*(mp)->m_dm_ops->xfs_send_destroy)(vp,right) |
1da177e4 | 106 | #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ |
293688ec | 107 | (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) |
1da177e4 | 108 | #define XFS_SEND_PREUNMOUNT(mp, vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ |
293688ec CH |
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_MOUNT(mp,right,path,name) \ | |
111 | (*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name) | |
1da177e4 | 112 | #define XFS_SEND_UNMOUNT(mp, vfsp,vp,right,mode,rval,fl) \ |
293688ec | 113 | (*(mp)->m_dm_ops->xfs_send_unmount)(vfsp,vp,right,mode,rval,fl) |
1da177e4 LT |
114 | |
115 | ||
116 | /* | |
117 | * Prototypes and functions for the Quota Management subsystem. | |
118 | */ | |
119 | ||
120 | struct xfs_dquot; | |
121 | struct xfs_dqtrxops; | |
122 | struct xfs_quotainfo; | |
123 | ||
124 | typedef int (*xfs_qminit_t)(struct xfs_mount *, uint *, uint *); | |
125 | typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int); | |
126 | typedef int (*xfs_qmunmount_t)(struct xfs_mount *); | |
127 | typedef void (*xfs_qmdone_t)(struct xfs_mount *); | |
128 | typedef void (*xfs_dqrele_t)(struct xfs_dquot *); | |
129 | typedef int (*xfs_dqattach_t)(struct xfs_inode *, uint); | |
130 | typedef void (*xfs_dqdetach_t)(struct xfs_inode *); | |
131 | typedef int (*xfs_dqpurgeall_t)(struct xfs_mount *, uint); | |
132 | typedef int (*xfs_dqvopalloc_t)(struct xfs_mount *, | |
c8ad20ff | 133 | struct xfs_inode *, uid_t, gid_t, prid_t, uint, |
1da177e4 LT |
134 | struct xfs_dquot **, struct xfs_dquot **); |
135 | typedef void (*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *, | |
136 | struct xfs_dquot *, struct xfs_dquot *); | |
137 | typedef int (*xfs_dqvoprename_t)(struct xfs_inode **); | |
138 | typedef struct xfs_dquot * (*xfs_dqvopchown_t)( | |
139 | struct xfs_trans *, struct xfs_inode *, | |
140 | struct xfs_dquot **, struct xfs_dquot *); | |
141 | typedef int (*xfs_dqvopchownresv_t)(struct xfs_trans *, struct xfs_inode *, | |
142 | struct xfs_dquot *, struct xfs_dquot *, uint); | |
b09cc771 CH |
143 | typedef void (*xfs_dqstatvfs_t)(struct xfs_inode *, bhv_statvfs_t *); |
144 | typedef int (*xfs_dqsync_t)(struct xfs_mount *, int flags); | |
145 | typedef int (*xfs_quotactl_t)(struct xfs_mount *, int, int, xfs_caddr_t); | |
1da177e4 LT |
146 | |
147 | typedef struct xfs_qmops { | |
148 | xfs_qminit_t xfs_qminit; | |
149 | xfs_qmdone_t xfs_qmdone; | |
150 | xfs_qmmount_t xfs_qmmount; | |
151 | xfs_qmunmount_t xfs_qmunmount; | |
152 | xfs_dqrele_t xfs_dqrele; | |
153 | xfs_dqattach_t xfs_dqattach; | |
154 | xfs_dqdetach_t xfs_dqdetach; | |
155 | xfs_dqpurgeall_t xfs_dqpurgeall; | |
156 | xfs_dqvopalloc_t xfs_dqvopalloc; | |
157 | xfs_dqvopcreate_t xfs_dqvopcreate; | |
158 | xfs_dqvoprename_t xfs_dqvoprename; | |
159 | xfs_dqvopchown_t xfs_dqvopchown; | |
160 | xfs_dqvopchownresv_t xfs_dqvopchownresv; | |
b09cc771 CH |
161 | xfs_dqstatvfs_t xfs_dqstatvfs; |
162 | xfs_dqsync_t xfs_dqsync; | |
163 | xfs_quotactl_t xfs_quotactl; | |
1da177e4 LT |
164 | struct xfs_dqtrxops *xfs_dqtrxops; |
165 | } xfs_qmops_t; | |
166 | ||
167 | #define XFS_QM_INIT(mp, mnt, fl) \ | |
b09cc771 | 168 | (*(mp)->m_qm_ops->xfs_qminit)(mp, mnt, fl) |
1da177e4 | 169 | #define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \ |
b09cc771 | 170 | (*(mp)->m_qm_ops->xfs_qmmount)(mp, mnt, fl, mfsi_flags) |
1da177e4 | 171 | #define XFS_QM_UNMOUNT(mp) \ |
b09cc771 | 172 | (*(mp)->m_qm_ops->xfs_qmunmount)(mp) |
1da177e4 | 173 | #define XFS_QM_DONE(mp) \ |
b09cc771 | 174 | (*(mp)->m_qm_ops->xfs_qmdone)(mp) |
1da177e4 | 175 | #define XFS_QM_DQRELE(mp, dq) \ |
b09cc771 | 176 | (*(mp)->m_qm_ops->xfs_dqrele)(dq) |
1da177e4 | 177 | #define XFS_QM_DQATTACH(mp, ip, fl) \ |
b09cc771 | 178 | (*(mp)->m_qm_ops->xfs_dqattach)(ip, fl) |
1da177e4 | 179 | #define XFS_QM_DQDETACH(mp, ip) \ |
b09cc771 | 180 | (*(mp)->m_qm_ops->xfs_dqdetach)(ip) |
1da177e4 | 181 | #define XFS_QM_DQPURGEALL(mp, fl) \ |
b09cc771 | 182 | (*(mp)->m_qm_ops->xfs_dqpurgeall)(mp, fl) |
c8ad20ff | 183 | #define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, prid, fl, dq1, dq2) \ |
b09cc771 | 184 | (*(mp)->m_qm_ops->xfs_dqvopalloc)(mp, ip, uid, gid, prid, fl, dq1, dq2) |
1da177e4 | 185 | #define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \ |
b09cc771 | 186 | (*(mp)->m_qm_ops->xfs_dqvopcreate)(tp, ip, dq1, dq2) |
1da177e4 | 187 | #define XFS_QM_DQVOPRENAME(mp, ip) \ |
b09cc771 | 188 | (*(mp)->m_qm_ops->xfs_dqvoprename)(ip) |
1da177e4 | 189 | #define XFS_QM_DQVOPCHOWN(mp, tp, ip, dqp, dq) \ |
b09cc771 | 190 | (*(mp)->m_qm_ops->xfs_dqvopchown)(tp, ip, dqp, dq) |
1da177e4 | 191 | #define XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, dq1, dq2, fl) \ |
b09cc771 CH |
192 | (*(mp)->m_qm_ops->xfs_dqvopchownresv)(tp, ip, dq1, dq2, fl) |
193 | #define XFS_QM_DQSTATVFS(ip, statp) \ | |
194 | (*(ip)->i_mount->m_qm_ops->xfs_dqstatvfs)(ip, statp) | |
195 | #define XFS_QM_DQSYNC(mp, flags) \ | |
196 | (*(mp)->m_qm_ops->xfs_dqsync)(mp, flags) | |
197 | #define XFS_QM_QUOTACTL(mp, cmd, id, addr) \ | |
198 | (*(mp)->m_qm_ops->xfs_quotactl)(mp, cmd, id, addr) | |
1da177e4 LT |
199 | |
200 | ||
201 | /* | |
202 | * Prototypes and functions for I/O core modularization. | |
203 | */ | |
204 | ||
b83bd138 | 205 | typedef int (*xfs_ioinit_t)(struct bhv_vfs *, |
1da177e4 LT |
206 | struct xfs_mount_args *, int); |
207 | typedef int (*xfs_bmapi_t)(struct xfs_trans *, void *, | |
208 | xfs_fileoff_t, xfs_filblks_t, int, | |
209 | xfs_fsblock_t *, xfs_extlen_t, | |
210 | struct xfs_bmbt_irec *, int *, | |
3e57ecf6 OW |
211 | struct xfs_bmap_free *, struct xfs_extdelta *); |
212 | typedef int (*xfs_bunmapi_t)(struct xfs_trans *, | |
213 | void *, xfs_fileoff_t, | |
214 | xfs_filblks_t, int, xfs_extnum_t, | |
215 | xfs_fsblock_t *, struct xfs_bmap_free *, | |
216 | struct xfs_extdelta *, int *); | |
1da177e4 LT |
217 | typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *); |
218 | typedef int (*xfs_iomap_write_direct_t)( | |
f403b7f4 | 219 | void *, xfs_off_t, size_t, int, |
1da177e4 LT |
220 | struct xfs_bmbt_irec *, int *, int); |
221 | typedef int (*xfs_iomap_write_delay_t)( | |
f403b7f4 | 222 | void *, xfs_off_t, size_t, int, |
1da177e4 LT |
223 | struct xfs_bmbt_irec *, int *); |
224 | typedef int (*xfs_iomap_write_allocate_t)( | |
f403b7f4 | 225 | void *, xfs_off_t, size_t, |
24e17b5f | 226 | struct xfs_bmbt_irec *, int *); |
1da177e4 | 227 | typedef int (*xfs_iomap_write_unwritten_t)( |
f403b7f4 | 228 | void *, xfs_off_t, size_t); |
1da177e4 LT |
229 | typedef uint (*xfs_lck_map_shared_t)(void *); |
230 | typedef void (*xfs_lock_t)(void *, uint); | |
231 | typedef void (*xfs_lock_demote_t)(void *, uint); | |
232 | typedef int (*xfs_lock_nowait_t)(void *, uint); | |
233 | typedef void (*xfs_unlk_t)(void *, unsigned int); | |
234 | typedef xfs_fsize_t (*xfs_size_t)(void *); | |
b83bd138 | 235 | typedef xfs_fsize_t (*xfs_iodone_t)(struct bhv_vfs *); |
3e57ecf6 OW |
236 | typedef int (*xfs_swap_extents_t)(void *, void *, |
237 | struct xfs_swapext*); | |
1da177e4 LT |
238 | |
239 | typedef struct xfs_ioops { | |
240 | xfs_ioinit_t xfs_ioinit; | |
241 | xfs_bmapi_t xfs_bmapi_func; | |
3e57ecf6 | 242 | xfs_bunmapi_t xfs_bunmapi_func; |
1da177e4 LT |
243 | xfs_bmap_eof_t xfs_bmap_eof_func; |
244 | xfs_iomap_write_direct_t xfs_iomap_write_direct; | |
245 | xfs_iomap_write_delay_t xfs_iomap_write_delay; | |
246 | xfs_iomap_write_allocate_t xfs_iomap_write_allocate; | |
247 | xfs_iomap_write_unwritten_t xfs_iomap_write_unwritten; | |
248 | xfs_lock_t xfs_ilock; | |
249 | xfs_lck_map_shared_t xfs_lck_map_shared; | |
250 | xfs_lock_demote_t xfs_ilock_demote; | |
251 | xfs_lock_nowait_t xfs_ilock_nowait; | |
252 | xfs_unlk_t xfs_unlock; | |
253 | xfs_size_t xfs_size_func; | |
254 | xfs_iodone_t xfs_iodone; | |
3e57ecf6 | 255 | xfs_swap_extents_t xfs_swap_extents_func; |
1da177e4 LT |
256 | } xfs_ioops_t; |
257 | ||
258 | #define XFS_IOINIT(vfsp, args, flags) \ | |
259 | (*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags) | |
3e57ecf6 | 260 | #define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist,delta) \ |
1da177e4 | 261 | (*(mp)->m_io_ops.xfs_bmapi_func) \ |
3e57ecf6 OW |
262 | (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist,delta) |
263 | #define XFS_BUNMAPI(mp, trans,io,bno,len,f,nexts,first,flist,delta,done) \ | |
264 | (*(mp)->m_io_ops.xfs_bunmapi_func) \ | |
265 | (trans,(io)->io_obj,bno,len,f,nexts,first,flist,delta,done) | |
1da177e4 LT |
266 | #define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \ |
267 | (*(mp)->m_io_ops.xfs_bmap_eof_func) \ | |
268 | ((io)->io_obj, endoff, whichfork, eof) | |
269 | #define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\ | |
270 | (*(mp)->m_io_ops.xfs_iomap_write_direct) \ | |
271 | ((io)->io_obj, offset, count, flags, mval, nmap, found) | |
272 | #define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \ | |
273 | (*(mp)->m_io_ops.xfs_iomap_write_delay) \ | |
274 | ((io)->io_obj, offset, count, flags, mval, nmap) | |
24e17b5f | 275 | #define XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count, mval, nmap) \ |
1da177e4 | 276 | (*(mp)->m_io_ops.xfs_iomap_write_allocate) \ |
24e17b5f | 277 | ((io)->io_obj, offset, count, mval, nmap) |
1da177e4 LT |
278 | #define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \ |
279 | (*(mp)->m_io_ops.xfs_iomap_write_unwritten) \ | |
280 | ((io)->io_obj, offset, count) | |
281 | #define XFS_LCK_MAP_SHARED(mp, io) \ | |
282 | (*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj) | |
283 | #define XFS_ILOCK(mp, io, mode) \ | |
284 | (*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode) | |
285 | #define XFS_ILOCK_NOWAIT(mp, io, mode) \ | |
286 | (*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode) | |
287 | #define XFS_IUNLOCK(mp, io, mode) \ | |
288 | (*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode) | |
289 | #define XFS_ILOCK_DEMOTE(mp, io, mode) \ | |
290 | (*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode) | |
291 | #define XFS_SIZE(mp, io) \ | |
292 | (*(mp)->m_io_ops.xfs_size_func)((io)->io_obj) | |
293 | #define XFS_IODONE(vfsp) \ | |
294 | (*(mp)->m_io_ops.xfs_iodone)(vfsp) | |
3e57ecf6 OW |
295 | #define XFS_SWAP_EXTENTS(mp, io, tio, sxp) \ |
296 | (*(mp)->m_io_ops.xfs_swap_extents_func) \ | |
297 | ((io)->io_obj, (tio)->io_obj, sxp) | |
1da177e4 | 298 | |
8d280b98 DC |
299 | #ifdef HAVE_PERCPU_SB |
300 | ||
301 | /* | |
302 | * Valid per-cpu incore superblock counters. Note that if you add new counters, | |
303 | * you may need to define new counter disabled bit field descriptors as there | |
304 | * are more possible fields in the superblock that can fit in a bitfield on a | |
305 | * 32 bit platform. The XFS_SBS_* values for the current current counters just | |
306 | * fit. | |
307 | */ | |
308 | typedef struct xfs_icsb_cnts { | |
309 | uint64_t icsb_fdblocks; | |
310 | uint64_t icsb_ifree; | |
311 | uint64_t icsb_icount; | |
01e1b69c | 312 | unsigned long icsb_flags; |
8d280b98 DC |
313 | } xfs_icsb_cnts_t; |
314 | ||
01e1b69c DC |
315 | #define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */ |
316 | ||
8d280b98 DC |
317 | #define XFS_ICSB_SB_LOCKED (1 << 0) /* sb already locked */ |
318 | #define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */ | |
319 | ||
320 | extern int xfs_icsb_init_counters(struct xfs_mount *); | |
5478eead | 321 | extern void xfs_icsb_reinit_counters(struct xfs_mount *); |
dbcabad1 | 322 | extern void xfs_icsb_sync_counters_flags(struct xfs_mount *, int); |
8d280b98 DC |
323 | |
324 | #else | |
325 | #define xfs_icsb_init_counters(mp) (0) | |
5478eead | 326 | #define xfs_icsb_reinit_counters(mp) do { } while (0) |
c97be736 | 327 | #define xfs_icsb_sync_counters_flags(mp, flags) do { } while (0) |
8d280b98 | 328 | #endif |
1da177e4 LT |
329 | |
330 | typedef struct xfs_mount { | |
745f6919 | 331 | struct bhv_vfs *m_vfsp; |
1da177e4 LT |
332 | xfs_tid_t m_tid; /* next unused tid for fs */ |
333 | AIL_LOCK_T m_ail_lock; /* fs AIL mutex */ | |
334 | xfs_ail_entry_t m_ail; /* fs active log item list */ | |
335 | uint m_ail_gen; /* fs AIL generation count */ | |
336 | xfs_sb_t m_sb; /* copy of fs superblock */ | |
337 | lock_t m_sb_lock; /* sb counter mutex */ | |
338 | struct xfs_buf *m_sb_bp; /* buffer for superblock */ | |
339 | char *m_fsname; /* filesystem name */ | |
340 | int m_fsname_len; /* strlen of fs name */ | |
fc1f8c1c NS |
341 | char *m_rtname; /* realtime device name */ |
342 | char *m_logname; /* external log device name */ | |
1da177e4 LT |
343 | int m_bsize; /* fs logical block size */ |
344 | xfs_agnumber_t m_agfrotor; /* last ag where space found */ | |
345 | xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ | |
346 | lock_t m_agirotor_lock;/* .. and lock protecting it */ | |
347 | xfs_agnumber_t m_maxagi; /* highest inode alloc group */ | |
1da177e4 LT |
348 | struct xfs_inode *m_inodes; /* active inode list */ |
349 | struct list_head m_del_inodes; /* inodes to reclaim */ | |
350 | mutex_t m_ilock; /* inode list mutex */ | |
351 | uint m_ireclaims; /* count of calls to reclaim*/ | |
352 | uint m_readio_log; /* min read size log bytes */ | |
353 | uint m_readio_blocks; /* min read size blocks */ | |
354 | uint m_writeio_log; /* min write size log bytes */ | |
355 | uint m_writeio_blocks; /* min write size blocks */ | |
356 | struct log *m_log; /* log specific stuff */ | |
357 | int m_logbufs; /* number of log buffers */ | |
358 | int m_logbsize; /* size of each log buffer */ | |
359 | uint m_rsumlevels; /* rt summary levels */ | |
360 | uint m_rsumsize; /* size of rt summary, bytes */ | |
361 | struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ | |
362 | struct xfs_inode *m_rsumip; /* pointer to summary inode */ | |
363 | struct xfs_inode *m_rootip; /* pointer to root directory */ | |
364 | struct xfs_quotainfo *m_quotainfo; /* disk quota information */ | |
365 | xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ | |
366 | xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ | |
367 | xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ | |
1da177e4 LT |
368 | __uint8_t m_dircook_elog; /* log d-cookie entry bits */ |
369 | __uint8_t m_blkbit_log; /* blocklog + NBBY */ | |
370 | __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ | |
371 | __uint8_t m_agno_log; /* log #ag's */ | |
372 | __uint8_t m_agino_log; /* #bits for agino in inum */ | |
1da177e4 LT |
373 | __uint16_t m_inode_cluster_size;/* min inode buf size */ |
374 | uint m_blockmask; /* sb_blocksize-1 */ | |
375 | uint m_blockwsize; /* sb_blocksize in words */ | |
376 | uint m_blockwmask; /* blockwsize-1 */ | |
377 | uint m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */ | |
378 | uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */ | |
379 | uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */ | |
380 | uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */ | |
381 | uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */ | |
382 | uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */ | |
383 | uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ | |
384 | uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ | |
385 | uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */ | |
386 | struct xfs_perag *m_perag; /* per-ag accounting info */ | |
387 | struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */ | |
388 | sema_t m_growlock; /* growfs mutex */ | |
389 | int m_fixedfsid[2]; /* unchanged for life of FS */ | |
390 | uint m_dmevmask; /* DMI events for this FS */ | |
e718eeb4 | 391 | __uint64_t m_flags; /* global mount flags */ |
1da177e4 LT |
392 | uint m_attroffset; /* inode attribute offset */ |
393 | uint m_dir_node_ents; /* #entries in a dir danode */ | |
394 | uint m_attr_node_ents; /* #entries in attr danode */ | |
395 | int m_ialloc_inos; /* inodes in inode allocation */ | |
396 | int m_ialloc_blks; /* blocks in inode allocation */ | |
397 | int m_litino; /* size of inode union area */ | |
398 | int m_inoalign_mask;/* mask sb_inoalignmt if used */ | |
399 | uint m_qflags; /* quota status flags */ | |
400 | xfs_trans_reservations_t m_reservations;/* precomputed res values */ | |
401 | __uint64_t m_maxicount; /* maximum inode count */ | |
402 | __uint64_t m_maxioffset; /* maximum inode offset */ | |
403 | __uint64_t m_resblks; /* total reserved blocks */ | |
404 | __uint64_t m_resblks_avail;/* available reserved blocks */ | |
405 | #if XFS_BIG_INUMS | |
406 | xfs_ino_t m_inoadd; /* add value for ino64_offset */ | |
407 | #endif | |
408 | int m_dalign; /* stripe unit */ | |
409 | int m_swidth; /* stripe width */ | |
c41564b5 | 410 | int m_sinoalign; /* stripe unit inode alignment */ |
1da177e4 LT |
411 | int m_attr_magicpct;/* 37% of the blocksize */ |
412 | int m_dir_magicpct; /* 37% of the dir blocksize */ | |
413 | __uint8_t m_mk_sharedro; /* mark shared ro on unmount */ | |
414 | __uint8_t m_inode_quiesce;/* call quiesce on new inodes. | |
415 | field governed by m_ilock */ | |
416 | __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ | |
1da177e4 LT |
417 | int m_dirblksize; /* directory block sz--bytes */ |
418 | int m_dirblkfsbs; /* directory block sz--fsbs */ | |
419 | xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ | |
420 | xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ | |
421 | xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ | |
422 | uint m_chsize; /* size of next field */ | |
423 | struct xfs_chash *m_chash; /* fs private inode per-cluster | |
424 | * hash table */ | |
293688ec | 425 | struct xfs_dmops *m_dm_ops; /* vector of DMI ops */ |
b09cc771 | 426 | struct xfs_qmops *m_qm_ops; /* vector of XQM ops */ |
1da177e4 LT |
427 | struct xfs_ioops m_io_ops; /* vector of I/O ops */ |
428 | atomic_t m_active_trans; /* number trans frozen */ | |
8d280b98 DC |
429 | #ifdef HAVE_PERCPU_SB |
430 | xfs_icsb_cnts_t *m_sb_cnts; /* per-cpu superblock counters */ | |
431 | unsigned long m_icsb_counters; /* disabled per-cpu counters */ | |
e8234a68 | 432 | struct notifier_block m_icsb_notifier; /* hotplug cpu notifier */ |
20b64285 | 433 | struct mutex m_icsb_mutex; /* balancer sync lock */ |
8d280b98 | 434 | #endif |
2a82b8be | 435 | struct xfs_mru_cache *m_filestream; /* per-mount filestream data */ |
74394496 CH |
436 | struct task_struct *m_sync_task; /* generalised sync thread */ |
437 | bhv_vfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */ | |
438 | struct list_head m_sync_list; /* sync thread work item list */ | |
439 | spinlock_t m_sync_lock; /* work item list lock */ | |
440 | int m_sync_seq; /* sync thread generation no. */ | |
441 | wait_queue_head_t m_wait_single_sync_task; | |
1da177e4 LT |
442 | } xfs_mount_t; |
443 | ||
444 | /* | |
445 | * Flags for m_flags. | |
446 | */ | |
92821e2b | 447 | #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops |
1da177e4 LT |
448 | must be synchronous except |
449 | for space allocations */ | |
92821e2b | 450 | #define XFS_MOUNT_INO64 (1ULL << 1) |
bd186aa9 | 451 | #define XFS_MOUNT_DMAPI (1ULL << 2) /* dmapi is enabled */ |
92821e2b | 452 | #define XFS_MOUNT_WAS_CLEAN (1ULL << 3) |
e718eeb4 | 453 | #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem |
1da177e4 LT |
454 | operations, typically for |
455 | disk errors in metadata */ | |
e718eeb4 | 456 | #define XFS_MOUNT_RETERR (1ULL << 6) /* return alignment errors to |
1da177e4 | 457 | user */ |
e718eeb4 | 458 | #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment |
1da177e4 | 459 | allocations */ |
13059ff0 | 460 | #define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */ |
bd186aa9 | 461 | #define XFS_MOUNT_GRPID (1ULL << 9) /* group-ID assigned from directory */ |
e718eeb4 NS |
462 | #define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */ |
463 | #define XFS_MOUNT_SHARED (1ULL << 11) /* shared mount */ | |
464 | #define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */ | |
465 | #define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */ | |
1da177e4 | 466 | /* osyncisdsync is now default*/ |
e718eeb4 | 467 | #define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above |
1da177e4 | 468 | * 32 bits in size */ |
bd186aa9 | 469 | #define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */ |
e718eeb4 NS |
470 | #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ |
471 | #define XFS_MOUNT_BARRIER (1ULL << 17) | |
472 | #define XFS_MOUNT_IDELETE (1ULL << 18) /* delete empty inode clusters*/ | |
473 | #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width | |
1da177e4 | 474 | * allocation */ |
bd186aa9 | 475 | #define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */ |
e718eeb4 NS |
476 | #define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */ |
477 | #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred | |
e8c8b3a7 | 478 | * I/O size in stat() */ |
8d280b98 DC |
479 | #define XFS_MOUNT_NO_PERCPU_SB (1ULL << 23) /* don't use per-cpu superblock |
480 | counters */ | |
2a82b8be DC |
481 | #define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams |
482 | allocator */ | |
e8c8b3a7 | 483 | |
1da177e4 LT |
484 | |
485 | /* | |
486 | * Default minimum read and write sizes. | |
487 | */ | |
488 | #define XFS_READIO_LOG_LARGE 16 | |
489 | #define XFS_WRITEIO_LOG_LARGE 16 | |
490 | ||
491 | /* | |
1f443ad7 NS |
492 | * Max and min values for mount-option defined I/O |
493 | * preallocation sizes. | |
1da177e4 | 494 | */ |
1f443ad7 | 495 | #define XFS_MAX_IO_LOG 30 /* 1G */ |
1da177e4 LT |
496 | #define XFS_MIN_IO_LOG PAGE_SHIFT |
497 | ||
498 | /* | |
499 | * Synchronous read and write sizes. This should be | |
500 | * better for NFSv2 wsync filesystems. | |
501 | */ | |
502 | #define XFS_WSYNC_READIO_LOG 15 /* 32K */ | |
503 | #define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */ | |
504 | ||
e8c8b3a7 DC |
505 | /* |
506 | * Allow large block sizes to be reported to userspace programs if the | |
507 | * "largeio" mount option is used. | |
508 | * | |
509 | * If compatibility mode is specified, simply return the basic unit of caching | |
510 | * so that we don't get inefficient read/modify/write I/O from user apps. | |
511 | * Otherwise.... | |
512 | * | |
513 | * If the underlying volume is a stripe, then return the stripe width in bytes | |
514 | * as the recommended I/O size. It is not a stripe and we've set a default | |
515 | * buffered I/O size, return that, otherwise return the compat default. | |
516 | */ | |
517 | static inline unsigned long | |
518 | xfs_preferred_iosize(xfs_mount_t *mp) | |
519 | { | |
520 | if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE) | |
521 | return PAGE_CACHE_SIZE; | |
522 | return (mp->m_swidth ? | |
523 | (mp->m_swidth << mp->m_sb.sb_blocklog) : | |
524 | ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ? | |
525 | (1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) : | |
526 | PAGE_CACHE_SIZE)); | |
527 | } | |
528 | ||
1da177e4 LT |
529 | #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) |
530 | ||
92821e2b DC |
531 | #define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \ |
532 | ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN) | |
1da177e4 | 533 | #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) |
745f6919 CH |
534 | void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname, |
535 | int lnnum); | |
1da177e4 | 536 | #define xfs_force_shutdown(m,f) \ |
745f6919 | 537 | xfs_do_force_shutdown(m, f, __FILE__, __LINE__) |
1da177e4 | 538 | |
1da177e4 LT |
539 | /* |
540 | * Flags for xfs_mountfs | |
541 | */ | |
542 | #define XFS_MFSI_SECOND 0x01 /* Secondary mount -- skip stuff */ | |
543 | #define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */ | |
764d1f89 | 544 | /* XFS_MFSI_RRINODES */ |
1da177e4 LT |
545 | #define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */ |
546 | /* log recovery */ | |
547 | #define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */ | |
764d1f89 NS |
548 | /* XFS_MFSI_CONVERT_SUNIT */ |
549 | #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */ | |
1da177e4 LT |
550 | |
551 | /* | |
552 | * Macros for getting from mount to vfs and back. | |
553 | */ | |
1da177e4 | 554 | #define XFS_MTOVFS(mp) xfs_mtovfs(mp) |
b83bd138 | 555 | static inline struct bhv_vfs *xfs_mtovfs(xfs_mount_t *mp) |
a844f451 | 556 | { |
745f6919 | 557 | return mp->m_vfsp; |
a844f451 | 558 | } |
1da177e4 | 559 | |
a844f451 | 560 | #define XFS_VFSTOM(vfs) xfs_vfstom(vfs) |
b83bd138 | 561 | static inline xfs_mount_t *xfs_vfstom(bhv_vfs_t *vfs) |
a844f451 | 562 | { |
745f6919 | 563 | return vfs->vfs_mount; |
a844f451 | 564 | } |
1da177e4 | 565 | |
1da177e4 | 566 | #define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d) |
a844f451 NS |
567 | static inline xfs_agnumber_t |
568 | xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 569 | { |
a844f451 NS |
570 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
571 | do_div(ld, mp->m_sb.sb_agblocks); | |
572 | return (xfs_agnumber_t) ld; | |
1da177e4 LT |
573 | } |
574 | ||
1da177e4 | 575 | #define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d) |
a844f451 NS |
576 | static inline xfs_agblock_t |
577 | xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 578 | { |
a844f451 NS |
579 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
580 | return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks); | |
1da177e4 LT |
581 | } |
582 | ||
da353b0d DC |
583 | /* |
584 | * perag get/put wrappers for eventual ref counting | |
585 | */ | |
586 | static inline xfs_perag_t * | |
587 | xfs_get_perag(struct xfs_mount *mp, xfs_ino_t ino) | |
588 | { | |
589 | return &mp->m_perag[XFS_INO_TO_AGNO(mp, ino)]; | |
590 | } | |
591 | ||
592 | static inline void | |
593 | xfs_put_perag(struct xfs_mount *mp, xfs_perag_t *pag) | |
594 | { | |
595 | /* nothing to see here, move along */ | |
596 | } | |
597 | ||
03135cf7 DC |
598 | /* |
599 | * Per-cpu superblock locking functions | |
600 | */ | |
601 | #ifdef HAVE_PERCPU_SB | |
602 | STATIC_INLINE void | |
603 | xfs_icsb_lock(xfs_mount_t *mp) | |
604 | { | |
605 | mutex_lock(&mp->m_icsb_mutex); | |
606 | } | |
607 | ||
608 | STATIC_INLINE void | |
609 | xfs_icsb_unlock(xfs_mount_t *mp) | |
610 | { | |
611 | mutex_unlock(&mp->m_icsb_mutex); | |
612 | } | |
613 | #else | |
614 | #define xfs_icsb_lock(mp) | |
615 | #define xfs_icsb_unlock(mp) | |
616 | #endif | |
617 | ||
1da177e4 LT |
618 | /* |
619 | * This structure is for use by the xfs_mod_incore_sb_batch() routine. | |
20f4ebf2 | 620 | * xfs_growfs can specify a few fields which are more than int limit |
1da177e4 LT |
621 | */ |
622 | typedef struct xfs_mod_sb { | |
623 | xfs_sb_field_t msb_field; /* Field to modify, see below */ | |
20f4ebf2 | 624 | int64_t msb_delta; /* Change to make to specified field */ |
1da177e4 LT |
625 | } xfs_mod_sb_t; |
626 | ||
794ee1ba | 627 | #define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock)) |
1da177e4 LT |
628 | #define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock)) |
629 | #define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock) | |
630 | #define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s)) | |
631 | ||
632 | extern xfs_mount_t *xfs_mount_init(void); | |
633 | extern void xfs_mod_sb(xfs_trans_t *, __int64_t); | |
92821e2b | 634 | extern int xfs_log_sbcount(xfs_mount_t *, uint); |
745f6919 | 635 | extern void xfs_mount_free(xfs_mount_t *mp); |
b83bd138 | 636 | extern int xfs_mountfs(struct bhv_vfs *, xfs_mount_t *mp, int); |
f538d4da | 637 | extern void xfs_mountfs_check_barriers(xfs_mount_t *mp); |
1da177e4 LT |
638 | |
639 | extern int xfs_unmountfs(xfs_mount_t *, struct cred *); | |
1da177e4 LT |
640 | extern void xfs_unmountfs_close(xfs_mount_t *, struct cred *); |
641 | extern int xfs_unmountfs_writesb(xfs_mount_t *); | |
642 | extern int xfs_unmount_flush(xfs_mount_t *, int); | |
20f4ebf2 | 643 | extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); |
8d280b98 | 644 | extern int xfs_mod_incore_sb_unlocked(xfs_mount_t *, xfs_sb_field_t, |
20f4ebf2 | 645 | int64_t, int); |
1da177e4 LT |
646 | extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, |
647 | uint, int); | |
648 | extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); | |
764d1f89 | 649 | extern int xfs_readsb(xfs_mount_t *, int); |
1da177e4 | 650 | extern void xfs_freesb(xfs_mount_t *); |
92821e2b | 651 | extern int xfs_fs_writable(xfs_mount_t *); |
1f9b3b64 LM |
652 | extern int xfs_syncsub(xfs_mount_t *, int, int *); |
653 | extern int xfs_sync_inodes(xfs_mount_t *, int, int *); | |
b83bd138 | 654 | extern xfs_agnumber_t xfs_initialize_perag(struct bhv_vfs *, xfs_mount_t *, |
c11e2c36 | 655 | xfs_agnumber_t); |
2bdf7cd0 CH |
656 | extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *); |
657 | extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t); | |
4cc929ee | 658 | extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t); |
1da177e4 | 659 | |
293688ec CH |
660 | extern int xfs_dmops_get(struct xfs_mount *, struct xfs_mount_args *); |
661 | extern void xfs_dmops_put(struct xfs_mount *); | |
b09cc771 CH |
662 | extern int xfs_qmops_get(struct xfs_mount *, struct xfs_mount_args *); |
663 | extern void xfs_qmops_put(struct xfs_mount *); | |
293688ec CH |
664 | |
665 | extern struct xfs_dmops xfs_dmcore_xfs; | |
1da177e4 LT |
666 | extern struct xfs_ioops xfs_iocore_xfs; |
667 | ||
668 | extern int xfs_init(void); | |
669 | extern void xfs_cleanup(void); | |
670 | ||
671 | #endif /* __KERNEL__ */ | |
672 | ||
673 | #endif /* __XFS_MOUNT_H__ */ |