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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 | ||
1da177e4 LT |
21 | typedef struct xfs_trans_reservations { |
22 | uint tr_write; /* extent alloc trans */ | |
23 | uint tr_itruncate; /* truncate trans */ | |
24 | uint tr_rename; /* rename trans */ | |
25 | uint tr_link; /* link trans */ | |
26 | uint tr_remove; /* unlink trans */ | |
27 | uint tr_symlink; /* symlink trans */ | |
28 | uint tr_create; /* create trans */ | |
29 | uint tr_mkdir; /* mkdir trans */ | |
30 | uint tr_ifree; /* inode free trans */ | |
31 | uint tr_ichange; /* inode update trans */ | |
32 | uint tr_growdata; /* fs data section grow trans */ | |
33 | uint tr_swrite; /* sync write inode trans */ | |
34 | uint tr_addafork; /* cvt inode to attributed trans */ | |
35 | uint tr_writeid; /* write setuid/setgid file */ | |
36 | uint tr_attrinval; /* attr fork buffer invalidation */ | |
37 | uint tr_attrset; /* set/create an attribute */ | |
38 | uint tr_attrrm; /* remove an attribute */ | |
39 | uint tr_clearagi; /* clear bad agi unlinked ino bucket */ | |
40 | uint tr_growrtalloc; /* grow realtime allocations */ | |
41 | uint tr_growrtzero; /* grow realtime zeroing */ | |
42 | uint tr_growrtfree; /* grow realtime freeing */ | |
43 | } xfs_trans_reservations_t; | |
44 | ||
1da177e4 | 45 | #ifndef __KERNEL__ |
847fff5c | 46 | |
1da177e4 LT |
47 | #define XFS_DADDR_TO_AGNO(mp,d) \ |
48 | ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks)) | |
49 | #define XFS_DADDR_TO_AGBNO(mp,d) \ | |
50 | ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks)) | |
847fff5c BN |
51 | |
52 | #else /* __KERNEL__ */ | |
53 | ||
6d73cf13 CH |
54 | #include "xfs_sync.h" |
55 | ||
1da177e4 LT |
56 | struct cred; |
57 | struct log; | |
1da177e4 | 58 | struct xfs_mount_args; |
1da177e4 | 59 | struct xfs_inode; |
1da177e4 LT |
60 | struct xfs_bmbt_irec; |
61 | struct xfs_bmap_free; | |
3e57ecf6 OW |
62 | struct xfs_extdelta; |
63 | struct xfs_swapext; | |
2a82b8be | 64 | struct xfs_mru_cache; |
5163f95a | 65 | struct xfs_nameops; |
82fa9012 | 66 | struct xfs_ail; |
1da177e4 | 67 | |
1da177e4 LT |
68 | /* |
69 | * Prototypes and functions for the Data Migration subsystem. | |
70 | */ | |
71 | ||
bc4ac74a | 72 | typedef int (*xfs_send_data_t)(int, struct xfs_inode *, |
126468b1 | 73 | xfs_off_t, size_t, int, int *); |
1da177e4 | 74 | typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); |
bc4ac74a | 75 | typedef int (*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t); |
b267ce99 | 76 | typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *, |
bc4ac74a CH |
77 | struct xfs_inode *, dm_right_t, |
78 | struct xfs_inode *, dm_right_t, | |
556b8b16 | 79 | const char *, const char *, mode_t, int, int); |
293688ec CH |
80 | typedef int (*xfs_send_mount_t)(struct xfs_mount *, dm_right_t, |
81 | char *, char *); | |
bc4ac74a | 82 | typedef void (*xfs_send_unmount_t)(struct xfs_mount *, struct xfs_inode *, |
1da177e4 LT |
83 | dm_right_t, mode_t, int, int); |
84 | ||
85 | typedef struct xfs_dmops { | |
86 | xfs_send_data_t xfs_send_data; | |
87 | xfs_send_mmap_t xfs_send_mmap; | |
88 | xfs_send_destroy_t xfs_send_destroy; | |
89 | xfs_send_namesp_t xfs_send_namesp; | |
293688ec | 90 | xfs_send_mount_t xfs_send_mount; |
1da177e4 LT |
91 | xfs_send_unmount_t xfs_send_unmount; |
92 | } xfs_dmops_t; | |
93 | ||
bc4ac74a CH |
94 | #define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \ |
95 | (*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock) | |
1da177e4 | 96 | #define XFS_SEND_MMAP(mp, vma,fl) \ |
293688ec | 97 | (*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl) |
bc4ac74a CH |
98 | #define XFS_SEND_DESTROY(mp, ip,right) \ |
99 | (*(mp)->m_dm_ops->xfs_send_destroy)(ip,right) | |
1da177e4 | 100 | #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ |
293688ec | 101 | (*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) |
b267ce99 CH |
102 | #define XFS_SEND_PREUNMOUNT(mp,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ |
103 | (*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT,mp,b1,r1,b2,r2,n1,n2,mode,rval,fl) | |
293688ec CH |
104 | #define XFS_SEND_MOUNT(mp,right,path,name) \ |
105 | (*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name) | |
bc4ac74a CH |
106 | #define XFS_SEND_UNMOUNT(mp, ip,right,mode,rval,fl) \ |
107 | (*(mp)->m_dm_ops->xfs_send_unmount)(mp,ip,right,mode,rval,fl) | |
1da177e4 LT |
108 | |
109 | ||
110 | /* | |
111 | * Prototypes and functions for the Quota Management subsystem. | |
112 | */ | |
113 | ||
114 | struct xfs_dquot; | |
115 | struct xfs_dqtrxops; | |
116 | struct xfs_quotainfo; | |
117 | ||
118 | typedef int (*xfs_qminit_t)(struct xfs_mount *, uint *, uint *); | |
4249023a | 119 | typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint); |
e57481dc | 120 | typedef void (*xfs_qmunmount_t)(struct xfs_mount *); |
1da177e4 LT |
121 | typedef void (*xfs_qmdone_t)(struct xfs_mount *); |
122 | typedef void (*xfs_dqrele_t)(struct xfs_dquot *); | |
123 | typedef int (*xfs_dqattach_t)(struct xfs_inode *, uint); | |
124 | typedef void (*xfs_dqdetach_t)(struct xfs_inode *); | |
125 | typedef int (*xfs_dqpurgeall_t)(struct xfs_mount *, uint); | |
126 | typedef int (*xfs_dqvopalloc_t)(struct xfs_mount *, | |
c8ad20ff | 127 | struct xfs_inode *, uid_t, gid_t, prid_t, uint, |
1da177e4 LT |
128 | struct xfs_dquot **, struct xfs_dquot **); |
129 | typedef void (*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *, | |
130 | struct xfs_dquot *, struct xfs_dquot *); | |
131 | typedef int (*xfs_dqvoprename_t)(struct xfs_inode **); | |
132 | typedef struct xfs_dquot * (*xfs_dqvopchown_t)( | |
133 | struct xfs_trans *, struct xfs_inode *, | |
134 | struct xfs_dquot **, struct xfs_dquot *); | |
135 | typedef int (*xfs_dqvopchownresv_t)(struct xfs_trans *, struct xfs_inode *, | |
136 | struct xfs_dquot *, struct xfs_dquot *, uint); | |
00dd4029 | 137 | typedef void (*xfs_dqstatvfs_t)(struct xfs_inode *, struct kstatfs *); |
b09cc771 CH |
138 | typedef int (*xfs_dqsync_t)(struct xfs_mount *, int flags); |
139 | typedef int (*xfs_quotactl_t)(struct xfs_mount *, int, int, xfs_caddr_t); | |
1da177e4 LT |
140 | |
141 | typedef struct xfs_qmops { | |
142 | xfs_qminit_t xfs_qminit; | |
143 | xfs_qmdone_t xfs_qmdone; | |
144 | xfs_qmmount_t xfs_qmmount; | |
145 | xfs_qmunmount_t xfs_qmunmount; | |
146 | xfs_dqrele_t xfs_dqrele; | |
147 | xfs_dqattach_t xfs_dqattach; | |
148 | xfs_dqdetach_t xfs_dqdetach; | |
149 | xfs_dqpurgeall_t xfs_dqpurgeall; | |
150 | xfs_dqvopalloc_t xfs_dqvopalloc; | |
151 | xfs_dqvopcreate_t xfs_dqvopcreate; | |
152 | xfs_dqvoprename_t xfs_dqvoprename; | |
153 | xfs_dqvopchown_t xfs_dqvopchown; | |
154 | xfs_dqvopchownresv_t xfs_dqvopchownresv; | |
b09cc771 CH |
155 | xfs_dqstatvfs_t xfs_dqstatvfs; |
156 | xfs_dqsync_t xfs_dqsync; | |
157 | xfs_quotactl_t xfs_quotactl; | |
1da177e4 LT |
158 | struct xfs_dqtrxops *xfs_dqtrxops; |
159 | } xfs_qmops_t; | |
160 | ||
161 | #define XFS_QM_INIT(mp, mnt, fl) \ | |
b09cc771 | 162 | (*(mp)->m_qm_ops->xfs_qminit)(mp, mnt, fl) |
4249023a CH |
163 | #define XFS_QM_MOUNT(mp, mnt, fl) \ |
164 | (*(mp)->m_qm_ops->xfs_qmmount)(mp, mnt, fl) | |
1da177e4 | 165 | #define XFS_QM_UNMOUNT(mp) \ |
b09cc771 | 166 | (*(mp)->m_qm_ops->xfs_qmunmount)(mp) |
1da177e4 | 167 | #define XFS_QM_DONE(mp) \ |
b09cc771 | 168 | (*(mp)->m_qm_ops->xfs_qmdone)(mp) |
1da177e4 | 169 | #define XFS_QM_DQRELE(mp, dq) \ |
b09cc771 | 170 | (*(mp)->m_qm_ops->xfs_dqrele)(dq) |
1da177e4 | 171 | #define XFS_QM_DQATTACH(mp, ip, fl) \ |
b09cc771 | 172 | (*(mp)->m_qm_ops->xfs_dqattach)(ip, fl) |
1da177e4 | 173 | #define XFS_QM_DQDETACH(mp, ip) \ |
b09cc771 | 174 | (*(mp)->m_qm_ops->xfs_dqdetach)(ip) |
1da177e4 | 175 | #define XFS_QM_DQPURGEALL(mp, fl) \ |
b09cc771 | 176 | (*(mp)->m_qm_ops->xfs_dqpurgeall)(mp, fl) |
c8ad20ff | 177 | #define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, prid, fl, dq1, dq2) \ |
b09cc771 | 178 | (*(mp)->m_qm_ops->xfs_dqvopalloc)(mp, ip, uid, gid, prid, fl, dq1, dq2) |
1da177e4 | 179 | #define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \ |
b09cc771 | 180 | (*(mp)->m_qm_ops->xfs_dqvopcreate)(tp, ip, dq1, dq2) |
1da177e4 | 181 | #define XFS_QM_DQVOPRENAME(mp, ip) \ |
b09cc771 | 182 | (*(mp)->m_qm_ops->xfs_dqvoprename)(ip) |
1da177e4 | 183 | #define XFS_QM_DQVOPCHOWN(mp, tp, ip, dqp, dq) \ |
b09cc771 | 184 | (*(mp)->m_qm_ops->xfs_dqvopchown)(tp, ip, dqp, dq) |
1da177e4 | 185 | #define XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, dq1, dq2, fl) \ |
b09cc771 CH |
186 | (*(mp)->m_qm_ops->xfs_dqvopchownresv)(tp, ip, dq1, dq2, fl) |
187 | #define XFS_QM_DQSTATVFS(ip, statp) \ | |
188 | (*(ip)->i_mount->m_qm_ops->xfs_dqstatvfs)(ip, statp) | |
189 | #define XFS_QM_DQSYNC(mp, flags) \ | |
190 | (*(mp)->m_qm_ops->xfs_dqsync)(mp, flags) | |
191 | #define XFS_QM_QUOTACTL(mp, cmd, id, addr) \ | |
192 | (*(mp)->m_qm_ops->xfs_quotactl)(mp, cmd, id, addr) | |
1da177e4 | 193 | |
8d280b98 DC |
194 | #ifdef HAVE_PERCPU_SB |
195 | ||
196 | /* | |
197 | * Valid per-cpu incore superblock counters. Note that if you add new counters, | |
198 | * you may need to define new counter disabled bit field descriptors as there | |
199 | * are more possible fields in the superblock that can fit in a bitfield on a | |
200 | * 32 bit platform. The XFS_SBS_* values for the current current counters just | |
201 | * fit. | |
202 | */ | |
203 | typedef struct xfs_icsb_cnts { | |
204 | uint64_t icsb_fdblocks; | |
205 | uint64_t icsb_ifree; | |
206 | uint64_t icsb_icount; | |
01e1b69c | 207 | unsigned long icsb_flags; |
8d280b98 DC |
208 | } xfs_icsb_cnts_t; |
209 | ||
01e1b69c DC |
210 | #define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */ |
211 | ||
8d280b98 DC |
212 | #define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */ |
213 | ||
214 | extern int xfs_icsb_init_counters(struct xfs_mount *); | |
5478eead | 215 | extern void xfs_icsb_reinit_counters(struct xfs_mount *); |
c962fb79 | 216 | extern void xfs_icsb_destroy_counters(struct xfs_mount *); |
d4d90b57 CH |
217 | extern void xfs_icsb_sync_counters(struct xfs_mount *, int); |
218 | extern void xfs_icsb_sync_counters_locked(struct xfs_mount *, int); | |
8d280b98 DC |
219 | |
220 | #else | |
c962fb79 CH |
221 | #define xfs_icsb_init_counters(mp) (0) |
222 | #define xfs_icsb_destroy_counters(mp) do { } while (0) | |
223 | #define xfs_icsb_reinit_counters(mp) do { } while (0) | |
d4d90b57 | 224 | #define xfs_icsb_sync_counters(mp, flags) do { } while (0) |
7155054c | 225 | #define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0) |
8d280b98 | 226 | #endif |
1da177e4 LT |
227 | |
228 | typedef struct xfs_mount { | |
b267ce99 | 229 | struct super_block *m_super; |
1da177e4 | 230 | xfs_tid_t m_tid; /* next unused tid for fs */ |
82fa9012 | 231 | struct xfs_ail *m_ail; /* fs active log item list */ |
1da177e4 | 232 | xfs_sb_t m_sb; /* copy of fs superblock */ |
3685c2a1 | 233 | spinlock_t m_sb_lock; /* sb counter lock */ |
1da177e4 LT |
234 | struct xfs_buf *m_sb_bp; /* buffer for superblock */ |
235 | char *m_fsname; /* filesystem name */ | |
236 | int m_fsname_len; /* strlen of fs name */ | |
fc1f8c1c NS |
237 | char *m_rtname; /* realtime device name */ |
238 | char *m_logname; /* external log device name */ | |
1da177e4 LT |
239 | int m_bsize; /* fs logical block size */ |
240 | xfs_agnumber_t m_agfrotor; /* last ag where space found */ | |
241 | xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ | |
36e41eeb | 242 | spinlock_t m_agirotor_lock;/* .. and lock protecting it */ |
1da177e4 | 243 | xfs_agnumber_t m_maxagi; /* highest inode alloc group */ |
1da177e4 LT |
244 | uint m_readio_log; /* min read size log bytes */ |
245 | uint m_readio_blocks; /* min read size blocks */ | |
246 | uint m_writeio_log; /* min write size log bytes */ | |
247 | uint m_writeio_blocks; /* min write size blocks */ | |
248 | struct log *m_log; /* log specific stuff */ | |
249 | int m_logbufs; /* number of log buffers */ | |
250 | int m_logbsize; /* size of each log buffer */ | |
251 | uint m_rsumlevels; /* rt summary levels */ | |
252 | uint m_rsumsize; /* size of rt summary, bytes */ | |
253 | struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ | |
254 | struct xfs_inode *m_rsumip; /* pointer to summary inode */ | |
255 | struct xfs_inode *m_rootip; /* pointer to root directory */ | |
256 | struct xfs_quotainfo *m_quotainfo; /* disk quota information */ | |
257 | xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ | |
258 | xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ | |
259 | xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ | |
1da177e4 LT |
260 | __uint8_t m_blkbit_log; /* blocklog + NBBY */ |
261 | __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ | |
262 | __uint8_t m_agno_log; /* log #ag's */ | |
263 | __uint8_t m_agino_log; /* #bits for agino in inum */ | |
1da177e4 LT |
264 | __uint16_t m_inode_cluster_size;/* min inode buf size */ |
265 | uint m_blockmask; /* sb_blocksize-1 */ | |
266 | uint m_blockwsize; /* sb_blocksize in words */ | |
267 | uint m_blockwmask; /* blockwsize-1 */ | |
60197e8d CH |
268 | uint m_alloc_mxr[2]; /* max alloc btree records */ |
269 | uint m_alloc_mnr[2]; /* min alloc btree records */ | |
270 | uint m_bmap_dmxr[2]; /* max bmap btree records */ | |
271 | uint m_bmap_dmnr[2]; /* min bmap btree records */ | |
272 | uint m_inobt_mxr[2]; /* max inobt btree records */ | |
273 | uint m_inobt_mnr[2]; /* min inobt btree records */ | |
1da177e4 LT |
274 | uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ |
275 | uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ | |
276 | uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */ | |
277 | struct xfs_perag *m_perag; /* per-ag accounting info */ | |
278 | struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */ | |
cc92e7ac | 279 | struct mutex m_growlock; /* growfs mutex */ |
1da177e4 LT |
280 | int m_fixedfsid[2]; /* unchanged for life of FS */ |
281 | uint m_dmevmask; /* DMI events for this FS */ | |
e718eeb4 | 282 | __uint64_t m_flags; /* global mount flags */ |
1da177e4 LT |
283 | uint m_attroffset; /* inode attribute offset */ |
284 | uint m_dir_node_ents; /* #entries in a dir danode */ | |
285 | uint m_attr_node_ents; /* #entries in attr danode */ | |
286 | int m_ialloc_inos; /* inodes in inode allocation */ | |
287 | int m_ialloc_blks; /* blocks in inode allocation */ | |
288 | int m_litino; /* size of inode union area */ | |
289 | int m_inoalign_mask;/* mask sb_inoalignmt if used */ | |
290 | uint m_qflags; /* quota status flags */ | |
291 | xfs_trans_reservations_t m_reservations;/* precomputed res values */ | |
292 | __uint64_t m_maxicount; /* maximum inode count */ | |
293 | __uint64_t m_maxioffset; /* maximum inode offset */ | |
294 | __uint64_t m_resblks; /* total reserved blocks */ | |
295 | __uint64_t m_resblks_avail;/* available reserved blocks */ | |
296 | #if XFS_BIG_INUMS | |
297 | xfs_ino_t m_inoadd; /* add value for ino64_offset */ | |
298 | #endif | |
299 | int m_dalign; /* stripe unit */ | |
300 | int m_swidth; /* stripe width */ | |
c41564b5 | 301 | int m_sinoalign; /* stripe unit inode alignment */ |
1da177e4 LT |
302 | int m_attr_magicpct;/* 37% of the blocksize */ |
303 | int m_dir_magicpct; /* 37% of the dir blocksize */ | |
1da177e4 | 304 | __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ |
5163f95a | 305 | const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */ |
1da177e4 LT |
306 | int m_dirblksize; /* directory block sz--bytes */ |
307 | int m_dirblkfsbs; /* directory block sz--fsbs */ | |
308 | xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ | |
309 | xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ | |
310 | xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ | |
311 | uint m_chsize; /* size of next field */ | |
312 | struct xfs_chash *m_chash; /* fs private inode per-cluster | |
313 | * hash table */ | |
293688ec | 314 | struct xfs_dmops *m_dm_ops; /* vector of DMI ops */ |
b09cc771 | 315 | struct xfs_qmops *m_qm_ops; /* vector of XQM ops */ |
1da177e4 | 316 | atomic_t m_active_trans; /* number trans frozen */ |
8d280b98 DC |
317 | #ifdef HAVE_PERCPU_SB |
318 | xfs_icsb_cnts_t *m_sb_cnts; /* per-cpu superblock counters */ | |
319 | unsigned long m_icsb_counters; /* disabled per-cpu counters */ | |
e8234a68 | 320 | struct notifier_block m_icsb_notifier; /* hotplug cpu notifier */ |
20b64285 | 321 | struct mutex m_icsb_mutex; /* balancer sync lock */ |
8d280b98 | 322 | #endif |
2a82b8be | 323 | struct xfs_mru_cache *m_filestream; /* per-mount filestream data */ |
74394496 CH |
324 | struct task_struct *m_sync_task; /* generalised sync thread */ |
325 | bhv_vfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */ | |
326 | struct list_head m_sync_list; /* sync thread work item list */ | |
327 | spinlock_t m_sync_lock; /* work item list lock */ | |
328 | int m_sync_seq; /* sync thread generation no. */ | |
329 | wait_queue_head_t m_wait_single_sync_task; | |
1da177e4 LT |
330 | } xfs_mount_t; |
331 | ||
332 | /* | |
333 | * Flags for m_flags. | |
334 | */ | |
92821e2b | 335 | #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops |
1da177e4 LT |
336 | must be synchronous except |
337 | for space allocations */ | |
92821e2b | 338 | #define XFS_MOUNT_INO64 (1ULL << 1) |
bd186aa9 | 339 | #define XFS_MOUNT_DMAPI (1ULL << 2) /* dmapi is enabled */ |
92821e2b | 340 | #define XFS_MOUNT_WAS_CLEAN (1ULL << 3) |
e718eeb4 | 341 | #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem |
1da177e4 LT |
342 | operations, typically for |
343 | disk errors in metadata */ | |
e718eeb4 | 344 | #define XFS_MOUNT_RETERR (1ULL << 6) /* return alignment errors to |
1da177e4 | 345 | user */ |
e718eeb4 | 346 | #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment |
1da177e4 | 347 | allocations */ |
13059ff0 | 348 | #define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */ |
bd186aa9 | 349 | #define XFS_MOUNT_GRPID (1ULL << 9) /* group-ID assigned from directory */ |
e718eeb4 | 350 | #define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */ |
e718eeb4 NS |
351 | #define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */ |
352 | #define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */ | |
1da177e4 | 353 | /* osyncisdsync is now default*/ |
e718eeb4 | 354 | #define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above |
1da177e4 | 355 | * 32 bits in size */ |
bd186aa9 | 356 | #define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */ |
e718eeb4 NS |
357 | #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ |
358 | #define XFS_MOUNT_BARRIER (1ULL << 17) | |
1bd960ee | 359 | #define XFS_MOUNT_IKEEP (1ULL << 18) /* keep empty inode clusters*/ |
e718eeb4 | 360 | #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width |
1da177e4 | 361 | * allocation */ |
bd186aa9 | 362 | #define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */ |
e718eeb4 NS |
363 | #define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */ |
364 | #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred | |
e8c8b3a7 | 365 | * I/O size in stat() */ |
8d280b98 DC |
366 | #define XFS_MOUNT_NO_PERCPU_SB (1ULL << 23) /* don't use per-cpu superblock |
367 | counters */ | |
2a82b8be DC |
368 | #define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams |
369 | allocator */ | |
7c12f296 | 370 | #define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */ |
e8c8b3a7 | 371 | |
1da177e4 LT |
372 | |
373 | /* | |
374 | * Default minimum read and write sizes. | |
375 | */ | |
376 | #define XFS_READIO_LOG_LARGE 16 | |
377 | #define XFS_WRITEIO_LOG_LARGE 16 | |
378 | ||
379 | /* | |
1f443ad7 NS |
380 | * Max and min values for mount-option defined I/O |
381 | * preallocation sizes. | |
1da177e4 | 382 | */ |
1f443ad7 | 383 | #define XFS_MAX_IO_LOG 30 /* 1G */ |
1da177e4 LT |
384 | #define XFS_MIN_IO_LOG PAGE_SHIFT |
385 | ||
386 | /* | |
387 | * Synchronous read and write sizes. This should be | |
388 | * better for NFSv2 wsync filesystems. | |
389 | */ | |
390 | #define XFS_WSYNC_READIO_LOG 15 /* 32K */ | |
391 | #define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */ | |
392 | ||
e8c8b3a7 DC |
393 | /* |
394 | * Allow large block sizes to be reported to userspace programs if the | |
556b8b16 | 395 | * "largeio" mount option is used. |
e8c8b3a7 DC |
396 | * |
397 | * If compatibility mode is specified, simply return the basic unit of caching | |
398 | * so that we don't get inefficient read/modify/write I/O from user apps. | |
399 | * Otherwise.... | |
400 | * | |
401 | * If the underlying volume is a stripe, then return the stripe width in bytes | |
402 | * as the recommended I/O size. It is not a stripe and we've set a default | |
403 | * buffered I/O size, return that, otherwise return the compat default. | |
404 | */ | |
405 | static inline unsigned long | |
406 | xfs_preferred_iosize(xfs_mount_t *mp) | |
407 | { | |
408 | if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE) | |
409 | return PAGE_CACHE_SIZE; | |
410 | return (mp->m_swidth ? | |
411 | (mp->m_swidth << mp->m_sb.sb_blocklog) : | |
412 | ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ? | |
413 | (1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) : | |
414 | PAGE_CACHE_SIZE)); | |
415 | } | |
416 | ||
1da177e4 LT |
417 | #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) |
418 | ||
92821e2b DC |
419 | #define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \ |
420 | ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN) | |
1da177e4 | 421 | #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) |
745f6919 CH |
422 | void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname, |
423 | int lnnum); | |
1da177e4 | 424 | #define xfs_force_shutdown(m,f) \ |
745f6919 | 425 | xfs_do_force_shutdown(m, f, __FILE__, __LINE__) |
1da177e4 | 426 | |
2b5decd0 CH |
427 | #define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ |
428 | #define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ | |
429 | #define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */ | |
430 | #define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */ | |
431 | #define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */ | |
432 | #define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */ | |
433 | ||
434 | #define xfs_test_for_freeze(mp) ((mp)->m_super->s_frozen) | |
435 | #define xfs_wait_for_freeze(mp,l) vfs_check_frozen((mp)->m_super, (l)) | |
436 | ||
1da177e4 LT |
437 | /* |
438 | * Flags for xfs_mountfs | |
439 | */ | |
764d1f89 | 440 | #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */ |
1da177e4 | 441 | |
1da177e4 | 442 | #define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d) |
a844f451 NS |
443 | static inline xfs_agnumber_t |
444 | xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 445 | { |
a844f451 NS |
446 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
447 | do_div(ld, mp->m_sb.sb_agblocks); | |
448 | return (xfs_agnumber_t) ld; | |
1da177e4 LT |
449 | } |
450 | ||
1da177e4 | 451 | #define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d) |
a844f451 NS |
452 | static inline xfs_agblock_t |
453 | xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) | |
1da177e4 | 454 | { |
a844f451 NS |
455 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
456 | return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks); | |
1da177e4 LT |
457 | } |
458 | ||
da353b0d DC |
459 | /* |
460 | * perag get/put wrappers for eventual ref counting | |
461 | */ | |
462 | static inline xfs_perag_t * | |
463 | xfs_get_perag(struct xfs_mount *mp, xfs_ino_t ino) | |
464 | { | |
465 | return &mp->m_perag[XFS_INO_TO_AGNO(mp, ino)]; | |
466 | } | |
467 | ||
468 | static inline void | |
469 | xfs_put_perag(struct xfs_mount *mp, xfs_perag_t *pag) | |
470 | { | |
471 | /* nothing to see here, move along */ | |
472 | } | |
473 | ||
03135cf7 DC |
474 | /* |
475 | * Per-cpu superblock locking functions | |
476 | */ | |
477 | #ifdef HAVE_PERCPU_SB | |
478 | STATIC_INLINE void | |
479 | xfs_icsb_lock(xfs_mount_t *mp) | |
480 | { | |
481 | mutex_lock(&mp->m_icsb_mutex); | |
482 | } | |
483 | ||
484 | STATIC_INLINE void | |
485 | xfs_icsb_unlock(xfs_mount_t *mp) | |
486 | { | |
487 | mutex_unlock(&mp->m_icsb_mutex); | |
488 | } | |
489 | #else | |
490 | #define xfs_icsb_lock(mp) | |
491 | #define xfs_icsb_unlock(mp) | |
492 | #endif | |
493 | ||
1da177e4 LT |
494 | /* |
495 | * This structure is for use by the xfs_mod_incore_sb_batch() routine. | |
20f4ebf2 | 496 | * xfs_growfs can specify a few fields which are more than int limit |
1da177e4 LT |
497 | */ |
498 | typedef struct xfs_mod_sb { | |
499 | xfs_sb_field_t msb_field; /* Field to modify, see below */ | |
20f4ebf2 | 500 | int64_t msb_delta; /* Change to make to specified field */ |
1da177e4 LT |
501 | } xfs_mod_sb_t; |
502 | ||
794ee1ba | 503 | #define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock)) |
1da177e4 | 504 | #define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock)) |
1da177e4 | 505 | |
92821e2b | 506 | extern int xfs_log_sbcount(xfs_mount_t *, uint); |
4249023a | 507 | extern int xfs_mountfs(xfs_mount_t *mp); |
f538d4da | 508 | extern void xfs_mountfs_check_barriers(xfs_mount_t *mp); |
1da177e4 | 509 | |
41b5c2e7 | 510 | extern void xfs_unmountfs(xfs_mount_t *); |
1da177e4 | 511 | extern int xfs_unmountfs_writesb(xfs_mount_t *); |
20f4ebf2 | 512 | extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); |
8d280b98 | 513 | extern int xfs_mod_incore_sb_unlocked(xfs_mount_t *, xfs_sb_field_t, |
20f4ebf2 | 514 | int64_t, int); |
1da177e4 LT |
515 | extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, |
516 | uint, int); | |
517 | extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); | |
764d1f89 | 518 | extern int xfs_readsb(xfs_mount_t *, int); |
1da177e4 | 519 | extern void xfs_freesb(xfs_mount_t *); |
92821e2b | 520 | extern int xfs_fs_writable(xfs_mount_t *); |
4cc929ee | 521 | extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t); |
1da177e4 | 522 | |
9d565ffa | 523 | extern int xfs_dmops_get(struct xfs_mount *); |
293688ec | 524 | extern void xfs_dmops_put(struct xfs_mount *); |
9d565ffa | 525 | extern int xfs_qmops_get(struct xfs_mount *); |
b09cc771 | 526 | extern void xfs_qmops_put(struct xfs_mount *); |
293688ec CH |
527 | |
528 | extern struct xfs_dmops xfs_dmcore_xfs; | |
1da177e4 | 529 | |
1da177e4 LT |
530 | #endif /* __KERNEL__ */ |
531 | ||
847fff5c BN |
532 | extern void xfs_mod_sb(struct xfs_trans *, __int64_t); |
533 | extern xfs_agnumber_t xfs_initialize_perag(struct xfs_mount *, xfs_agnumber_t); | |
534 | extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *); | |
535 | extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t); | |
536 | ||
1da177e4 | 537 | #endif /* __XFS_MOUNT_H__ */ |