1 /* 2 * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * Further, this software is distributed without any warranty that it is 13 * free of the rightful claim of any third person regarding infringement 14 * or the like. Any license provided herein, whether implied or 15 * otherwise, applies only to this software file. Patent licenses, if 16 * any, provided herein do not apply to combinations of this program with 17 * other software, or any other product whatsoever. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, write the Free Software Foundation, Inc., 59 21 * Temple Place - Suite 330, Boston MA 02111-1307, USA. 22 * 23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 24 * Mountain View, CA 94043, or: 25 * 26 * http://www.sgi.com 27 * 28 * For further information regarding this notice, see: 29 * 30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ 31 */ 32 #ifndef __XFS_MOUNT_H__ 33 #define __XFS_MOUNT_H__ 34 35 36 typedef struct xfs_trans_reservations { 37 uint tr_write; /* extent alloc trans */ 38 uint tr_itruncate; /* truncate trans */ 39 uint tr_rename; /* rename trans */ 40 uint tr_link; /* link trans */ 41 uint tr_remove; /* unlink trans */ 42 uint tr_symlink; /* symlink trans */ 43 uint tr_create; /* create trans */ 44 uint tr_mkdir; /* mkdir trans */ 45 uint tr_ifree; /* inode free trans */ 46 uint tr_ichange; /* inode update trans */ 47 uint tr_growdata; /* fs data section grow trans */ 48 uint tr_swrite; /* sync write inode trans */ 49 uint tr_addafork; /* cvt inode to attributed trans */ 50 uint tr_writeid; /* write setuid/setgid file */ 51 uint tr_attrinval; /* attr fork buffer invalidation */ 52 uint tr_attrset; /* set/create an attribute */ 53 uint tr_attrrm; /* remove an attribute */ 54 uint tr_clearagi; /* clear bad agi unlinked ino bucket */ 55 uint tr_growrtalloc; /* grow realtime allocations */ 56 uint tr_growrtzero; /* grow realtime zeroing */ 57 uint tr_growrtfree; /* grow realtime freeing */ 58 } xfs_trans_reservations_t; 59 60 61 #ifndef __KERNEL__ 62 /* 63 * Moved here from xfs_ag.h to avoid reordering header files 64 */ 65 #define XFS_DADDR_TO_AGNO(mp,d) \ 66 ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks)) 67 #define XFS_DADDR_TO_AGBNO(mp,d) \ 68 ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks)) 69 #else 70 struct cred; 71 struct log; 72 struct vfs; 73 struct vnode; 74 struct xfs_mount_args; 75 struct xfs_ihash; 76 struct xfs_chash; 77 struct xfs_inode; 78 struct xfs_perag; 79 struct xfs_iocore; 80 struct xfs_bmbt_irec; 81 struct xfs_bmap_free; 82 83 #define AIL_LOCK_T lock_t 84 #define AIL_LOCKINIT(x,y) spinlock_init(x,y) 85 #define AIL_LOCK_DESTROY(x) spinlock_destroy(x) 86 #define AIL_LOCK(mp,s) s=mutex_spinlock(&(mp)->m_ail_lock) 87 #define AIL_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_ail_lock, s) 88 89 90 /* 91 * Prototypes and functions for the Data Migration subsystem. 92 */ 93 94 typedef int (*xfs_send_data_t)(int, struct vnode *, 95 xfs_off_t, size_t, int, vrwlock_t *); 96 typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); 97 typedef int (*xfs_send_destroy_t)(struct vnode *, dm_right_t); 98 typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct vfs *, 99 struct vnode *, 100 dm_right_t, struct vnode *, dm_right_t, 101 char *, char *, mode_t, int, int); 102 typedef void (*xfs_send_unmount_t)(struct vfs *, struct vnode *, 103 dm_right_t, mode_t, int, int); 104 105 typedef struct xfs_dmops { 106 xfs_send_data_t xfs_send_data; 107 xfs_send_mmap_t xfs_send_mmap; 108 xfs_send_destroy_t xfs_send_destroy; 109 xfs_send_namesp_t xfs_send_namesp; 110 xfs_send_unmount_t xfs_send_unmount; 111 } xfs_dmops_t; 112 113 #define XFS_SEND_DATA(mp, ev,vp,off,len,fl,lock) \ 114 (*(mp)->m_dm_ops.xfs_send_data)(ev,vp,off,len,fl,lock) 115 #define XFS_SEND_MMAP(mp, vma,fl) \ 116 (*(mp)->m_dm_ops.xfs_send_mmap)(vma,fl) 117 #define XFS_SEND_DESTROY(mp, vp,right) \ 118 (*(mp)->m_dm_ops.xfs_send_destroy)(vp,right) 119 #define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ 120 (*(mp)->m_dm_ops.xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl) 121 #define XFS_SEND_PREUNMOUNT(mp, vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) \ 122 (*(mp)->m_dm_ops.xfs_send_namesp)(DM_EVENT_PREUNMOUNT,vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) 123 #define XFS_SEND_UNMOUNT(mp, vfsp,vp,right,mode,rval,fl) \ 124 (*(mp)->m_dm_ops.xfs_send_unmount)(vfsp,vp,right,mode,rval,fl) 125 126 127 /* 128 * Prototypes and functions for the Quota Management subsystem. 129 */ 130 131 struct xfs_dquot; 132 struct xfs_dqtrxops; 133 struct xfs_quotainfo; 134 135 typedef int (*xfs_qminit_t)(struct xfs_mount *, uint *, uint *); 136 typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int); 137 typedef int (*xfs_qmunmount_t)(struct xfs_mount *); 138 typedef void (*xfs_qmdone_t)(struct xfs_mount *); 139 typedef void (*xfs_dqrele_t)(struct xfs_dquot *); 140 typedef int (*xfs_dqattach_t)(struct xfs_inode *, uint); 141 typedef void (*xfs_dqdetach_t)(struct xfs_inode *); 142 typedef int (*xfs_dqpurgeall_t)(struct xfs_mount *, uint); 143 typedef int (*xfs_dqvopalloc_t)(struct xfs_mount *, 144 struct xfs_inode *, uid_t, gid_t, uint, 145 struct xfs_dquot **, struct xfs_dquot **); 146 typedef void (*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *, 147 struct xfs_dquot *, struct xfs_dquot *); 148 typedef int (*xfs_dqvoprename_t)(struct xfs_inode **); 149 typedef struct xfs_dquot * (*xfs_dqvopchown_t)( 150 struct xfs_trans *, struct xfs_inode *, 151 struct xfs_dquot **, struct xfs_dquot *); 152 typedef int (*xfs_dqvopchownresv_t)(struct xfs_trans *, struct xfs_inode *, 153 struct xfs_dquot *, struct xfs_dquot *, uint); 154 155 typedef struct xfs_qmops { 156 xfs_qminit_t xfs_qminit; 157 xfs_qmdone_t xfs_qmdone; 158 xfs_qmmount_t xfs_qmmount; 159 xfs_qmunmount_t xfs_qmunmount; 160 xfs_dqrele_t xfs_dqrele; 161 xfs_dqattach_t xfs_dqattach; 162 xfs_dqdetach_t xfs_dqdetach; 163 xfs_dqpurgeall_t xfs_dqpurgeall; 164 xfs_dqvopalloc_t xfs_dqvopalloc; 165 xfs_dqvopcreate_t xfs_dqvopcreate; 166 xfs_dqvoprename_t xfs_dqvoprename; 167 xfs_dqvopchown_t xfs_dqvopchown; 168 xfs_dqvopchownresv_t xfs_dqvopchownresv; 169 struct xfs_dqtrxops *xfs_dqtrxops; 170 } xfs_qmops_t; 171 172 #define XFS_QM_INIT(mp, mnt, fl) \ 173 (*(mp)->m_qm_ops.xfs_qminit)(mp, mnt, fl) 174 #define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \ 175 (*(mp)->m_qm_ops.xfs_qmmount)(mp, mnt, fl, mfsi_flags) 176 #define XFS_QM_UNMOUNT(mp) \ 177 (*(mp)->m_qm_ops.xfs_qmunmount)(mp) 178 #define XFS_QM_DONE(mp) \ 179 (*(mp)->m_qm_ops.xfs_qmdone)(mp) 180 #define XFS_QM_DQRELE(mp, dq) \ 181 (*(mp)->m_qm_ops.xfs_dqrele)(dq) 182 #define XFS_QM_DQATTACH(mp, ip, fl) \ 183 (*(mp)->m_qm_ops.xfs_dqattach)(ip, fl) 184 #define XFS_QM_DQDETACH(mp, ip) \ 185 (*(mp)->m_qm_ops.xfs_dqdetach)(ip) 186 #define XFS_QM_DQPURGEALL(mp, fl) \ 187 (*(mp)->m_qm_ops.xfs_dqpurgeall)(mp, fl) 188 #define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, fl, dq1, dq2) \ 189 (*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, fl, dq1, dq2) 190 #define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \ 191 (*(mp)->m_qm_ops.xfs_dqvopcreate)(tp, ip, dq1, dq2) 192 #define XFS_QM_DQVOPRENAME(mp, ip) \ 193 (*(mp)->m_qm_ops.xfs_dqvoprename)(ip) 194 #define XFS_QM_DQVOPCHOWN(mp, tp, ip, dqp, dq) \ 195 (*(mp)->m_qm_ops.xfs_dqvopchown)(tp, ip, dqp, dq) 196 #define XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, dq1, dq2, fl) \ 197 (*(mp)->m_qm_ops.xfs_dqvopchownresv)(tp, ip, dq1, dq2, fl) 198 199 200 /* 201 * Prototypes and functions for I/O core modularization. 202 */ 203 204 typedef int (*xfs_ioinit_t)(struct vfs *, 205 struct xfs_mount_args *, int); 206 typedef int (*xfs_bmapi_t)(struct xfs_trans *, void *, 207 xfs_fileoff_t, xfs_filblks_t, int, 208 xfs_fsblock_t *, xfs_extlen_t, 209 struct xfs_bmbt_irec *, int *, 210 struct xfs_bmap_free *); 211 typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *); 212 typedef int (*xfs_iomap_write_direct_t)( 213 void *, loff_t, size_t, int, 214 struct xfs_bmbt_irec *, int *, int); 215 typedef int (*xfs_iomap_write_delay_t)( 216 void *, loff_t, size_t, int, 217 struct xfs_bmbt_irec *, int *); 218 typedef int (*xfs_iomap_write_allocate_t)( 219 void *, struct xfs_bmbt_irec *, int *); 220 typedef int (*xfs_iomap_write_unwritten_t)( 221 void *, loff_t, size_t); 222 typedef uint (*xfs_lck_map_shared_t)(void *); 223 typedef void (*xfs_lock_t)(void *, uint); 224 typedef void (*xfs_lock_demote_t)(void *, uint); 225 typedef int (*xfs_lock_nowait_t)(void *, uint); 226 typedef void (*xfs_unlk_t)(void *, unsigned int); 227 typedef xfs_fsize_t (*xfs_size_t)(void *); 228 typedef xfs_fsize_t (*xfs_iodone_t)(struct vfs *); 229 230 typedef struct xfs_ioops { 231 xfs_ioinit_t xfs_ioinit; 232 xfs_bmapi_t xfs_bmapi_func; 233 xfs_bmap_eof_t xfs_bmap_eof_func; 234 xfs_iomap_write_direct_t xfs_iomap_write_direct; 235 xfs_iomap_write_delay_t xfs_iomap_write_delay; 236 xfs_iomap_write_allocate_t xfs_iomap_write_allocate; 237 xfs_iomap_write_unwritten_t xfs_iomap_write_unwritten; 238 xfs_lock_t xfs_ilock; 239 xfs_lck_map_shared_t xfs_lck_map_shared; 240 xfs_lock_demote_t xfs_ilock_demote; 241 xfs_lock_nowait_t xfs_ilock_nowait; 242 xfs_unlk_t xfs_unlock; 243 xfs_size_t xfs_size_func; 244 xfs_iodone_t xfs_iodone; 245 } xfs_ioops_t; 246 247 #define XFS_IOINIT(vfsp, args, flags) \ 248 (*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags) 249 #define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist) \ 250 (*(mp)->m_io_ops.xfs_bmapi_func) \ 251 (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist) 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) 261 #define XFS_IOMAP_WRITE_ALLOCATE(mp, io, mval, nmap) \ 262 (*(mp)->m_io_ops.xfs_iomap_write_allocate) \ 263 ((io)->io_obj, mval, nmap) 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) 281 282 283 typedef struct xfs_mount { 284 bhv_desc_t m_bhv; /* vfs xfs behavior */ 285 xfs_tid_t m_tid; /* next unused tid for fs */ 286 AIL_LOCK_T m_ail_lock; /* fs AIL mutex */ 287 xfs_ail_entry_t m_ail; /* fs active log item list */ 288 uint m_ail_gen; /* fs AIL generation count */ 289 xfs_sb_t m_sb; /* copy of fs superblock */ 290 lock_t m_sb_lock; /* sb counter mutex */ 291 struct xfs_buf *m_sb_bp; /* buffer for superblock */ 292 char *m_fsname; /* filesystem name */ 293 int m_fsname_len; /* strlen of fs name */ 294 int m_bsize; /* fs logical block size */ 295 xfs_agnumber_t m_agfrotor; /* last ag where space found */ 296 xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ 297 lock_t m_agirotor_lock;/* .. and lock protecting it */ 298 xfs_agnumber_t m_maxagi; /* highest inode alloc group */ 299 uint m_ihsize; /* size of next field */ 300 struct xfs_ihash *m_ihash; /* fs private inode hash table*/ 301 struct xfs_inode *m_inodes; /* active inode list */ 302 struct list_head m_del_inodes; /* inodes to reclaim */ 303 mutex_t m_ilock; /* inode list mutex */ 304 uint m_ireclaims; /* count of calls to reclaim*/ 305 uint m_readio_log; /* min read size log bytes */ 306 uint m_readio_blocks; /* min read size blocks */ 307 uint m_writeio_log; /* min write size log bytes */ 308 uint m_writeio_blocks; /* min write size blocks */ 309 struct log *m_log; /* log specific stuff */ 310 int m_logbufs; /* number of log buffers */ 311 int m_logbsize; /* size of each log buffer */ 312 uint m_rsumlevels; /* rt summary levels */ 313 uint m_rsumsize; /* size of rt summary, bytes */ 314 struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ 315 struct xfs_inode *m_rsumip; /* pointer to summary inode */ 316 struct xfs_inode *m_rootip; /* pointer to root directory */ 317 struct xfs_quotainfo *m_quotainfo; /* disk quota information */ 318 xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ 319 xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ 320 xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ 321 #define m_dev m_ddev_targp->pbr_dev 322 __uint8_t m_dircook_elog; /* log d-cookie entry bits */ 323 __uint8_t m_blkbit_log; /* blocklog + NBBY */ 324 __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ 325 __uint8_t m_agno_log; /* log #ag's */ 326 __uint8_t m_agino_log; /* #bits for agino in inum */ 327 __uint8_t m_nreadaheads; /* #readahead buffers */ 328 __uint16_t m_inode_cluster_size;/* min inode buf size */ 329 uint m_blockmask; /* sb_blocksize-1 */ 330 uint m_blockwsize; /* sb_blocksize in words */ 331 uint m_blockwmask; /* blockwsize-1 */ 332 uint m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */ 333 uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */ 334 uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */ 335 uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */ 336 uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */ 337 uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */ 338 uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ 339 uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ 340 uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */ 341 struct xfs_perag *m_perag; /* per-ag accounting info */ 342 struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */ 343 sema_t m_growlock; /* growfs mutex */ 344 int m_fixedfsid[2]; /* unchanged for life of FS */ 345 uint m_dmevmask; /* DMI events for this FS */ 346 uint m_flags; /* global mount flags */ 347 uint m_attroffset; /* inode attribute offset */ 348 uint m_dir_node_ents; /* #entries in a dir danode */ 349 uint m_attr_node_ents; /* #entries in attr danode */ 350 int m_ialloc_inos; /* inodes in inode allocation */ 351 int m_ialloc_blks; /* blocks in inode allocation */ 352 int m_litino; /* size of inode union area */ 353 int m_inoalign_mask;/* mask sb_inoalignmt if used */ 354 uint m_qflags; /* quota status flags */ 355 xfs_trans_reservations_t m_reservations;/* precomputed res values */ 356 __uint64_t m_maxicount; /* maximum inode count */ 357 __uint64_t m_maxioffset; /* maximum inode offset */ 358 __uint64_t m_resblks; /* total reserved blocks */ 359 __uint64_t m_resblks_avail;/* available reserved blocks */ 360 #if XFS_BIG_INUMS 361 xfs_ino_t m_inoadd; /* add value for ino64_offset */ 362 #endif 363 int m_dalign; /* stripe unit */ 364 int m_swidth; /* stripe width */ 365 int m_sinoalign; /* stripe unit inode alignmnt */ 366 int m_attr_magicpct;/* 37% of the blocksize */ 367 int m_dir_magicpct; /* 37% of the dir blocksize */ 368 __uint8_t m_mk_sharedro; /* mark shared ro on unmount */ 369 __uint8_t m_inode_quiesce;/* call quiesce on new inodes. 370 field governed by m_ilock */ 371 __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ 372 __uint8_t m_dirversion; /* 1 or 2 */ 373 xfs_dirops_t m_dirops; /* table of dir funcs */ 374 int m_dirblksize; /* directory block sz--bytes */ 375 int m_dirblkfsbs; /* directory block sz--fsbs */ 376 xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ 377 xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ 378 xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ 379 uint m_chsize; /* size of next field */ 380 struct xfs_chash *m_chash; /* fs private inode per-cluster 381 * hash table */ 382 struct xfs_dmops m_dm_ops; /* vector of DMI ops */ 383 struct xfs_qmops m_qm_ops; /* vector of XQM ops */ 384 struct xfs_ioops m_io_ops; /* vector of I/O ops */ 385 atomic_t m_active_trans; /* number trans frozen */ 386 } xfs_mount_t; 387 388 /* 389 * Flags for m_flags. 390 */ 391 #define XFS_MOUNT_WSYNC 0x00000001 /* for nfs - all metadata ops 392 must be synchronous except 393 for space allocations */ 394 #define XFS_MOUNT_INO64 0x00000002 395 /* 0x00000004 -- currently unused */ 396 /* 0x00000008 -- currently unused */ 397 #define XFS_MOUNT_FS_SHUTDOWN 0x00000010 /* atomic stop of all filesystem 398 operations, typically for 399 disk errors in metadata */ 400 #define XFS_MOUNT_NOATIME 0x00000020 /* don't modify inode access 401 times on reads */ 402 #define XFS_MOUNT_RETERR 0x00000040 /* return alignment errors to 403 user */ 404 #define XFS_MOUNT_NOALIGN 0x00000080 /* turn off stripe alignment 405 allocations */ 406 /* 0x00000100 -- currently unused */ 407 /* 0x00000200 -- currently unused */ 408 #define XFS_MOUNT_NORECOVERY 0x00000400 /* no recovery - dirty fs */ 409 #define XFS_MOUNT_SHARED 0x00000800 /* shared mount */ 410 #define XFS_MOUNT_DFLT_IOSIZE 0x00001000 /* set default i/o size */ 411 #define XFS_MOUNT_OSYNCISOSYNC 0x00002000 /* o_sync is REALLY o_sync */ 412 /* osyncisdsync is now default*/ 413 #define XFS_MOUNT_32BITINODES 0x00004000 /* do not create inodes above 414 * 32 bits in size */ 415 #define XFS_MOUNT_32BITINOOPT 0x00008000 /* saved mount option state */ 416 #define XFS_MOUNT_NOUUID 0x00010000 /* ignore uuid during mount */ 417 #define XFS_MOUNT_NOLOGFLUSH 0x00020000 418 #define XFS_MOUNT_IDELETE 0x00040000 /* delete empty inode clusters*/ 419 #define XFS_MOUNT_SWALLOC 0x00080000 /* turn on stripe width 420 * allocation */ 421 #define XFS_MOUNT_IHASHSIZE 0x00100000 /* inode hash table size */ 422 #define XFS_MOUNT_DIRSYNC 0x00200000 /* synchronous directory ops */ 423 424 /* 425 * Default minimum read and write sizes. 426 */ 427 #define XFS_READIO_LOG_LARGE 16 428 #define XFS_WRITEIO_LOG_LARGE 16 429 430 /* 431 * Max and min values for UIO and mount-option defined I/O sizes; 432 * min value can't be less than a page. Currently unused. 433 */ 434 #define XFS_MAX_IO_LOG 16 /* 64K */ 435 #define XFS_MIN_IO_LOG PAGE_SHIFT 436 437 /* 438 * Synchronous read and write sizes. This should be 439 * better for NFSv2 wsync filesystems. 440 */ 441 #define XFS_WSYNC_READIO_LOG 15 /* 32K */ 442 #define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */ 443 444 #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) 445 446 #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) 447 #define xfs_force_shutdown(m,f) \ 448 VFS_FORCE_SHUTDOWN((XFS_MTOVFS(m)), f, __FILE__, __LINE__) 449 450 /* 451 * Flags sent to xfs_force_shutdown. 452 */ 453 #define XFS_METADATA_IO_ERROR 0x1 454 #define XFS_LOG_IO_ERROR 0x2 455 #define XFS_FORCE_UMOUNT 0x4 456 #define XFS_CORRUPT_INCORE 0x8 /* Corrupt in-memory data structures */ 457 #define XFS_SHUTDOWN_REMOTE_REQ 0x10 /* Shutdown came from remote cell */ 458 459 /* 460 * xflags for xfs_syncsub 461 */ 462 #define XFS_XSYNC_RELOC 0x01 463 464 /* 465 * Flags for xfs_mountfs 466 */ 467 #define XFS_MFSI_SECOND 0x01 /* Secondary mount -- skip stuff */ 468 #define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */ 469 #define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */ 470 /* log recovery */ 471 #define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */ 472 473 /* 474 * Macros for getting from mount to vfs and back. 475 */ 476 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MTOVFS) 477 struct vfs *xfs_mtovfs(xfs_mount_t *mp); 478 #define XFS_MTOVFS(mp) xfs_mtovfs(mp) 479 #else 480 #define XFS_MTOVFS(mp) (bhvtovfs(&(mp)->m_bhv)) 481 #endif 482 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BHVTOM) 483 xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp); 484 #define XFS_BHVTOM(bdp) xfs_bhvtom(bdp) 485 #else 486 #define XFS_BHVTOM(bdp) ((xfs_mount_t *)BHV_PDATA(bdp)) 487 #endif 488 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_VFSTOM) 489 xfs_mount_t *xfs_vfstom(vfs_t *vfs); 490 #define XFS_VFSTOM(vfs) xfs_vfstom(vfs) 491 #else 492 #define XFS_VFSTOM(vfs) \ 493 (XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfs), &xfs_vfsops))) 494 #endif 495 496 497 /* 498 * Moved here from xfs_ag.h to avoid reordering header files 499 */ 500 501 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGNO) 502 xfs_agnumber_t xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d); 503 #define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d) 504 #else 505 506 static inline xfs_agnumber_t XFS_DADDR_TO_AGNO(xfs_mount_t *mp, xfs_daddr_t d) 507 { 508 d = XFS_BB_TO_FSBT(mp, d); 509 do_div(d, mp->m_sb.sb_agblocks); 510 return (xfs_agnumber_t) d; 511 } 512 513 #endif 514 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGBNO) 515 xfs_agblock_t xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d); 516 #define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d) 517 #else 518 519 static inline xfs_agblock_t XFS_DADDR_TO_AGBNO(xfs_mount_t *mp, xfs_daddr_t d) 520 { 521 d = XFS_BB_TO_FSBT(mp, d); 522 return (xfs_agblock_t) do_div(d, mp->m_sb.sb_agblocks); 523 } 524 525 #endif 526 527 /* 528 * This structure is for use by the xfs_mod_incore_sb_batch() routine. 529 */ 530 typedef struct xfs_mod_sb { 531 xfs_sb_field_t msb_field; /* Field to modify, see below */ 532 int msb_delta; /* Change to make to specified field */ 533 } xfs_mod_sb_t; 534 535 #define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock), PINOD) 536 #define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock)) 537 #define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock) 538 #define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s)) 539 540 extern xfs_mount_t *xfs_mount_init(void); 541 extern void xfs_mod_sb(xfs_trans_t *, __int64_t); 542 extern void xfs_mount_free(xfs_mount_t *mp, int remove_bhv); 543 extern int xfs_mountfs(struct vfs *, xfs_mount_t *mp, int); 544 545 extern int xfs_unmountfs(xfs_mount_t *, struct cred *); 546 extern void xfs_unmountfs_wait(xfs_mount_t *); 547 extern void xfs_unmountfs_close(xfs_mount_t *, struct cred *); 548 extern int xfs_unmountfs_writesb(xfs_mount_t *); 549 extern int xfs_unmount_flush(xfs_mount_t *, int); 550 extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int, int); 551 extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, 552 uint, int); 553 extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); 554 extern int xfs_readsb(xfs_mount_t *mp); 555 extern void xfs_freesb(xfs_mount_t *); 556 extern void xfs_do_force_shutdown(bhv_desc_t *, int, char *, int); 557 extern int xfs_syncsub(xfs_mount_t *, int, int, int *); 558 extern xfs_agnumber_t xfs_initialize_perag(xfs_mount_t *, xfs_agnumber_t); 559 extern void xfs_xlatesb(void *, struct xfs_sb *, int, __int64_t); 560 561 extern struct vfsops xfs_vfsops; 562 extern struct vnodeops xfs_vnodeops; 563 564 extern struct xfs_dmops xfs_dmcore_stub; 565 extern struct xfs_qmops xfs_qmcore_stub; 566 extern struct xfs_ioops xfs_iocore_xfs; 567 568 extern int xfs_init(void); 569 extern void xfs_cleanup(void); 570 571 #endif /* __KERNEL__ */ 572 573 #endif /* __XFS_MOUNT_H__ */ 574