Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
| 18 | #ifndef __XFS_MOUNT_H__ |
| 19 | #define __XFS_MOUNT_H__ |
| 20 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #ifndef __KERNEL__ |
| 46 | /* |
| 47 | * Moved here from xfs_ag.h to avoid reordering header files |
| 48 | */ |
| 49 | #define XFS_DADDR_TO_AGNO(mp,d) \ |
| 50 | ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks)) |
| 51 | #define XFS_DADDR_TO_AGBNO(mp,d) \ |
| 52 | ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks)) |
| 53 | #else |
| 54 | struct cred; |
| 55 | struct log; |
| 56 | struct vfs; |
| 57 | struct vnode; |
| 58 | struct xfs_mount_args; |
| 59 | struct xfs_ihash; |
| 60 | struct xfs_chash; |
| 61 | struct xfs_inode; |
| 62 | struct xfs_perag; |
| 63 | struct xfs_iocore; |
| 64 | struct xfs_bmbt_irec; |
| 65 | struct xfs_bmap_free; |
| 66 | |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 67 | extern struct vfsops xfs_vfsops; |
| 68 | extern struct vnodeops xfs_vnodeops; |
| 69 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 81 | typedef int (*xfs_send_data_t)(int, struct vnode *, |
| 82 | xfs_off_t, size_t, int, vrwlock_t *); |
| 83 | typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint); |
| 84 | typedef int (*xfs_send_destroy_t)(struct vnode *, dm_right_t); |
| 85 | typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct vfs *, |
| 86 | struct vnode *, |
| 87 | dm_right_t, struct vnode *, dm_right_t, |
| 88 | char *, char *, mode_t, int, int); |
| 89 | typedef void (*xfs_send_unmount_t)(struct vfs *, struct vnode *, |
| 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 *, |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 131 | struct xfs_inode *, uid_t, gid_t, prid_t, uint, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 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) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 191 | typedef int (*xfs_ioinit_t)(struct vfs *, |
| 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 *, |
| 197 | struct xfs_bmap_free *); |
| 198 | typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *); |
| 199 | typedef int (*xfs_iomap_write_direct_t)( |
Nathan Scott | f403b7f | 2005-05-05 13:33:40 -0700 | [diff] [blame] | 200 | void *, xfs_off_t, size_t, int, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | struct xfs_bmbt_irec *, int *, int); |
| 202 | typedef int (*xfs_iomap_write_delay_t)( |
Nathan Scott | f403b7f | 2005-05-05 13:33:40 -0700 | [diff] [blame] | 203 | void *, xfs_off_t, size_t, int, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | struct xfs_bmbt_irec *, int *); |
| 205 | typedef int (*xfs_iomap_write_allocate_t)( |
Nathan Scott | f403b7f | 2005-05-05 13:33:40 -0700 | [diff] [blame] | 206 | void *, xfs_off_t, size_t, |
Nathan Scott | 24e17b5 | 2005-05-05 13:33:20 -0700 | [diff] [blame] | 207 | struct xfs_bmbt_irec *, int *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | typedef int (*xfs_iomap_write_unwritten_t)( |
Nathan Scott | f403b7f | 2005-05-05 13:33:40 -0700 | [diff] [blame] | 209 | void *, xfs_off_t, size_t); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | typedef uint (*xfs_lck_map_shared_t)(void *); |
| 211 | typedef void (*xfs_lock_t)(void *, uint); |
| 212 | typedef void (*xfs_lock_demote_t)(void *, uint); |
| 213 | typedef int (*xfs_lock_nowait_t)(void *, uint); |
| 214 | typedef void (*xfs_unlk_t)(void *, unsigned int); |
| 215 | typedef xfs_fsize_t (*xfs_size_t)(void *); |
| 216 | typedef xfs_fsize_t (*xfs_iodone_t)(struct vfs *); |
| 217 | |
| 218 | typedef struct xfs_ioops { |
| 219 | xfs_ioinit_t xfs_ioinit; |
| 220 | xfs_bmapi_t xfs_bmapi_func; |
| 221 | xfs_bmap_eof_t xfs_bmap_eof_func; |
| 222 | xfs_iomap_write_direct_t xfs_iomap_write_direct; |
| 223 | xfs_iomap_write_delay_t xfs_iomap_write_delay; |
| 224 | xfs_iomap_write_allocate_t xfs_iomap_write_allocate; |
| 225 | xfs_iomap_write_unwritten_t xfs_iomap_write_unwritten; |
| 226 | xfs_lock_t xfs_ilock; |
| 227 | xfs_lck_map_shared_t xfs_lck_map_shared; |
| 228 | xfs_lock_demote_t xfs_ilock_demote; |
| 229 | xfs_lock_nowait_t xfs_ilock_nowait; |
| 230 | xfs_unlk_t xfs_unlock; |
| 231 | xfs_size_t xfs_size_func; |
| 232 | xfs_iodone_t xfs_iodone; |
| 233 | } xfs_ioops_t; |
| 234 | |
| 235 | #define XFS_IOINIT(vfsp, args, flags) \ |
| 236 | (*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags) |
| 237 | #define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist) \ |
| 238 | (*(mp)->m_io_ops.xfs_bmapi_func) \ |
| 239 | (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist) |
| 240 | #define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \ |
| 241 | (*(mp)->m_io_ops.xfs_bmap_eof_func) \ |
| 242 | ((io)->io_obj, endoff, whichfork, eof) |
| 243 | #define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\ |
| 244 | (*(mp)->m_io_ops.xfs_iomap_write_direct) \ |
| 245 | ((io)->io_obj, offset, count, flags, mval, nmap, found) |
| 246 | #define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \ |
| 247 | (*(mp)->m_io_ops.xfs_iomap_write_delay) \ |
| 248 | ((io)->io_obj, offset, count, flags, mval, nmap) |
Nathan Scott | 24e17b5 | 2005-05-05 13:33:20 -0700 | [diff] [blame] | 249 | #define XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count, mval, nmap) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | (*(mp)->m_io_ops.xfs_iomap_write_allocate) \ |
Nathan Scott | 24e17b5 | 2005-05-05 13:33:20 -0700 | [diff] [blame] | 251 | ((io)->io_obj, offset, count, mval, nmap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | #define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \ |
| 253 | (*(mp)->m_io_ops.xfs_iomap_write_unwritten) \ |
| 254 | ((io)->io_obj, offset, count) |
| 255 | #define XFS_LCK_MAP_SHARED(mp, io) \ |
| 256 | (*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj) |
| 257 | #define XFS_ILOCK(mp, io, mode) \ |
| 258 | (*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode) |
| 259 | #define XFS_ILOCK_NOWAIT(mp, io, mode) \ |
| 260 | (*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode) |
| 261 | #define XFS_IUNLOCK(mp, io, mode) \ |
| 262 | (*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode) |
| 263 | #define XFS_ILOCK_DEMOTE(mp, io, mode) \ |
| 264 | (*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode) |
| 265 | #define XFS_SIZE(mp, io) \ |
| 266 | (*(mp)->m_io_ops.xfs_size_func)((io)->io_obj) |
| 267 | #define XFS_IODONE(vfsp) \ |
| 268 | (*(mp)->m_io_ops.xfs_iodone)(vfsp) |
| 269 | |
| 270 | |
| 271 | typedef struct xfs_mount { |
| 272 | bhv_desc_t m_bhv; /* vfs xfs behavior */ |
| 273 | xfs_tid_t m_tid; /* next unused tid for fs */ |
| 274 | AIL_LOCK_T m_ail_lock; /* fs AIL mutex */ |
| 275 | xfs_ail_entry_t m_ail; /* fs active log item list */ |
| 276 | uint m_ail_gen; /* fs AIL generation count */ |
| 277 | xfs_sb_t m_sb; /* copy of fs superblock */ |
| 278 | lock_t m_sb_lock; /* sb counter mutex */ |
| 279 | struct xfs_buf *m_sb_bp; /* buffer for superblock */ |
| 280 | char *m_fsname; /* filesystem name */ |
| 281 | int m_fsname_len; /* strlen of fs name */ |
Nathan Scott | fc1f8c1 | 2005-11-02 11:44:33 +1100 | [diff] [blame] | 282 | char *m_rtname; /* realtime device name */ |
| 283 | char *m_logname; /* external log device name */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | int m_bsize; /* fs logical block size */ |
| 285 | xfs_agnumber_t m_agfrotor; /* last ag where space found */ |
| 286 | xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ |
| 287 | lock_t m_agirotor_lock;/* .. and lock protecting it */ |
| 288 | xfs_agnumber_t m_maxagi; /* highest inode alloc group */ |
| 289 | uint m_ihsize; /* size of next field */ |
| 290 | struct xfs_ihash *m_ihash; /* fs private inode hash table*/ |
| 291 | struct xfs_inode *m_inodes; /* active inode list */ |
| 292 | struct list_head m_del_inodes; /* inodes to reclaim */ |
| 293 | mutex_t m_ilock; /* inode list mutex */ |
| 294 | uint m_ireclaims; /* count of calls to reclaim*/ |
| 295 | uint m_readio_log; /* min read size log bytes */ |
| 296 | uint m_readio_blocks; /* min read size blocks */ |
| 297 | uint m_writeio_log; /* min write size log bytes */ |
| 298 | uint m_writeio_blocks; /* min write size blocks */ |
| 299 | struct log *m_log; /* log specific stuff */ |
| 300 | int m_logbufs; /* number of log buffers */ |
| 301 | int m_logbsize; /* size of each log buffer */ |
| 302 | uint m_rsumlevels; /* rt summary levels */ |
| 303 | uint m_rsumsize; /* size of rt summary, bytes */ |
| 304 | struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ |
| 305 | struct xfs_inode *m_rsumip; /* pointer to summary inode */ |
| 306 | struct xfs_inode *m_rootip; /* pointer to root directory */ |
| 307 | struct xfs_quotainfo *m_quotainfo; /* disk quota information */ |
| 308 | xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ |
| 309 | xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ |
| 310 | xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ |
| 311 | #define m_dev m_ddev_targp->pbr_dev |
| 312 | __uint8_t m_dircook_elog; /* log d-cookie entry bits */ |
| 313 | __uint8_t m_blkbit_log; /* blocklog + NBBY */ |
| 314 | __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ |
| 315 | __uint8_t m_agno_log; /* log #ag's */ |
| 316 | __uint8_t m_agino_log; /* #bits for agino in inum */ |
| 317 | __uint8_t m_nreadaheads; /* #readahead buffers */ |
| 318 | __uint16_t m_inode_cluster_size;/* min inode buf size */ |
| 319 | uint m_blockmask; /* sb_blocksize-1 */ |
| 320 | uint m_blockwsize; /* sb_blocksize in words */ |
| 321 | uint m_blockwmask; /* blockwsize-1 */ |
| 322 | uint m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */ |
| 323 | uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */ |
| 324 | uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */ |
| 325 | uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */ |
| 326 | uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */ |
| 327 | uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */ |
| 328 | uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ |
| 329 | uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ |
| 330 | uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */ |
| 331 | struct xfs_perag *m_perag; /* per-ag accounting info */ |
| 332 | struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */ |
| 333 | sema_t m_growlock; /* growfs mutex */ |
| 334 | int m_fixedfsid[2]; /* unchanged for life of FS */ |
| 335 | uint m_dmevmask; /* DMI events for this FS */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 336 | __uint64_t m_flags; /* global mount flags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | uint m_attroffset; /* inode attribute offset */ |
| 338 | uint m_dir_node_ents; /* #entries in a dir danode */ |
| 339 | uint m_attr_node_ents; /* #entries in attr danode */ |
| 340 | int m_ialloc_inos; /* inodes in inode allocation */ |
| 341 | int m_ialloc_blks; /* blocks in inode allocation */ |
| 342 | int m_litino; /* size of inode union area */ |
| 343 | int m_inoalign_mask;/* mask sb_inoalignmt if used */ |
| 344 | uint m_qflags; /* quota status flags */ |
| 345 | xfs_trans_reservations_t m_reservations;/* precomputed res values */ |
| 346 | __uint64_t m_maxicount; /* maximum inode count */ |
| 347 | __uint64_t m_maxioffset; /* maximum inode offset */ |
| 348 | __uint64_t m_resblks; /* total reserved blocks */ |
| 349 | __uint64_t m_resblks_avail;/* available reserved blocks */ |
| 350 | #if XFS_BIG_INUMS |
| 351 | xfs_ino_t m_inoadd; /* add value for ino64_offset */ |
| 352 | #endif |
| 353 | int m_dalign; /* stripe unit */ |
| 354 | int m_swidth; /* stripe width */ |
| 355 | int m_sinoalign; /* stripe unit inode alignmnt */ |
| 356 | int m_attr_magicpct;/* 37% of the blocksize */ |
| 357 | int m_dir_magicpct; /* 37% of the dir blocksize */ |
| 358 | __uint8_t m_mk_sharedro; /* mark shared ro on unmount */ |
| 359 | __uint8_t m_inode_quiesce;/* call quiesce on new inodes. |
| 360 | field governed by m_ilock */ |
| 361 | __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ |
| 362 | __uint8_t m_dirversion; /* 1 or 2 */ |
| 363 | xfs_dirops_t m_dirops; /* table of dir funcs */ |
| 364 | int m_dirblksize; /* directory block sz--bytes */ |
| 365 | int m_dirblkfsbs; /* directory block sz--fsbs */ |
| 366 | xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ |
| 367 | xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ |
| 368 | xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ |
| 369 | uint m_chsize; /* size of next field */ |
| 370 | struct xfs_chash *m_chash; /* fs private inode per-cluster |
| 371 | * hash table */ |
| 372 | struct xfs_dmops m_dm_ops; /* vector of DMI ops */ |
| 373 | struct xfs_qmops m_qm_ops; /* vector of XQM ops */ |
| 374 | struct xfs_ioops m_io_ops; /* vector of I/O ops */ |
| 375 | atomic_t m_active_trans; /* number trans frozen */ |
| 376 | } xfs_mount_t; |
| 377 | |
| 378 | /* |
| 379 | * Flags for m_flags. |
| 380 | */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 381 | #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | must be synchronous except |
| 383 | for space allocations */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 384 | #define XFS_MOUNT_INO64 (1ULL << 1) |
| 385 | /* (1ULL << 2) -- currently unused */ |
| 386 | /* (1ULL << 3) -- currently unused */ |
| 387 | #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | operations, typically for |
| 389 | disk errors in metadata */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 390 | #define XFS_MOUNT_NOATIME (1ULL << 5) /* don't modify inode access |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | times on reads */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 392 | #define XFS_MOUNT_RETERR (1ULL << 6) /* return alignment errors to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | user */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 394 | #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | allocations */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 396 | #define XFS_MOUNT_COMPAT_ATTR (1ULL << 8) /* do not use attr2 format */ |
| 397 | /* (1ULL << 9) -- currently unused */ |
| 398 | #define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */ |
| 399 | #define XFS_MOUNT_SHARED (1ULL << 11) /* shared mount */ |
| 400 | #define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */ |
| 401 | #define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | /* osyncisdsync is now default*/ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 403 | #define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | * 32 bits in size */ |
Nathan Scott | c11e2c3 | 2005-11-02 15:11:45 +1100 | [diff] [blame^] | 405 | /* (1ULL << 15) -- currently unused */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 406 | #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ |
| 407 | #define XFS_MOUNT_BARRIER (1ULL << 17) |
| 408 | #define XFS_MOUNT_IDELETE (1ULL << 18) /* delete empty inode clusters*/ |
| 409 | #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | * allocation */ |
Nathan Scott | e718eeb | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 411 | #define XFS_MOUNT_IHASHSIZE (1ULL << 20) /* inode hash table size */ |
| 412 | #define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */ |
| 413 | #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred |
David Chinner | e8c8b3a | 2005-11-02 10:33:05 +1100 | [diff] [blame] | 414 | * I/O size in stat() */ |
| 415 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | |
| 417 | /* |
| 418 | * Default minimum read and write sizes. |
| 419 | */ |
| 420 | #define XFS_READIO_LOG_LARGE 16 |
| 421 | #define XFS_WRITEIO_LOG_LARGE 16 |
| 422 | |
| 423 | /* |
Nathan Scott | 1f443ad | 2005-05-05 13:28:29 -0700 | [diff] [blame] | 424 | * Max and min values for mount-option defined I/O |
| 425 | * preallocation sizes. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | */ |
Nathan Scott | 1f443ad | 2005-05-05 13:28:29 -0700 | [diff] [blame] | 427 | #define XFS_MAX_IO_LOG 30 /* 1G */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | #define XFS_MIN_IO_LOG PAGE_SHIFT |
| 429 | |
| 430 | /* |
| 431 | * Synchronous read and write sizes. This should be |
| 432 | * better for NFSv2 wsync filesystems. |
| 433 | */ |
| 434 | #define XFS_WSYNC_READIO_LOG 15 /* 32K */ |
| 435 | #define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */ |
| 436 | |
David Chinner | e8c8b3a | 2005-11-02 10:33:05 +1100 | [diff] [blame] | 437 | /* |
| 438 | * Allow large block sizes to be reported to userspace programs if the |
| 439 | * "largeio" mount option is used. |
| 440 | * |
| 441 | * If compatibility mode is specified, simply return the basic unit of caching |
| 442 | * so that we don't get inefficient read/modify/write I/O from user apps. |
| 443 | * Otherwise.... |
| 444 | * |
| 445 | * If the underlying volume is a stripe, then return the stripe width in bytes |
| 446 | * as the recommended I/O size. It is not a stripe and we've set a default |
| 447 | * buffered I/O size, return that, otherwise return the compat default. |
| 448 | */ |
| 449 | static inline unsigned long |
| 450 | xfs_preferred_iosize(xfs_mount_t *mp) |
| 451 | { |
| 452 | if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE) |
| 453 | return PAGE_CACHE_SIZE; |
| 454 | return (mp->m_swidth ? |
| 455 | (mp->m_swidth << mp->m_sb.sb_blocklog) : |
| 456 | ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ? |
| 457 | (1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) : |
| 458 | PAGE_CACHE_SIZE)); |
| 459 | } |
| 460 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) |
| 462 | |
| 463 | #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) |
| 464 | #define xfs_force_shutdown(m,f) \ |
| 465 | VFS_FORCE_SHUTDOWN((XFS_MTOVFS(m)), f, __FILE__, __LINE__) |
| 466 | |
| 467 | /* |
| 468 | * Flags sent to xfs_force_shutdown. |
| 469 | */ |
| 470 | #define XFS_METADATA_IO_ERROR 0x1 |
| 471 | #define XFS_LOG_IO_ERROR 0x2 |
| 472 | #define XFS_FORCE_UMOUNT 0x4 |
| 473 | #define XFS_CORRUPT_INCORE 0x8 /* Corrupt in-memory data structures */ |
| 474 | #define XFS_SHUTDOWN_REMOTE_REQ 0x10 /* Shutdown came from remote cell */ |
| 475 | |
| 476 | /* |
| 477 | * xflags for xfs_syncsub |
| 478 | */ |
| 479 | #define XFS_XSYNC_RELOC 0x01 |
| 480 | |
| 481 | /* |
| 482 | * Flags for xfs_mountfs |
| 483 | */ |
| 484 | #define XFS_MFSI_SECOND 0x01 /* Secondary mount -- skip stuff */ |
| 485 | #define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */ |
| 486 | #define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */ |
| 487 | /* log recovery */ |
| 488 | #define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */ |
| 489 | |
| 490 | /* |
| 491 | * Macros for getting from mount to vfs and back. |
| 492 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | #define XFS_MTOVFS(mp) xfs_mtovfs(mp) |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 494 | static inline struct vfs *xfs_mtovfs(xfs_mount_t *mp) |
| 495 | { |
| 496 | return bhvtovfs(&mp->m_bhv); |
| 497 | } |
| 498 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | #define XFS_BHVTOM(bdp) xfs_bhvtom(bdp) |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 500 | static inline xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp) |
| 501 | { |
| 502 | return (xfs_mount_t *)BHV_PDATA(bdp); |
| 503 | } |
| 504 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | #define XFS_VFSTOM(vfs) xfs_vfstom(vfs) |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 506 | static inline xfs_mount_t *xfs_vfstom(vfs_t *vfs) |
| 507 | { |
| 508 | return XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfs), &xfs_vfsops)); |
| 509 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | #define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d) |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 512 | static inline xfs_agnumber_t |
| 513 | xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | { |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 515 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
| 516 | do_div(ld, mp->m_sb.sb_agblocks); |
| 517 | return (xfs_agnumber_t) ld; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | } |
| 519 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | #define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d) |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 521 | static inline xfs_agblock_t |
| 522 | xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | { |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 524 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
| 525 | return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | } |
| 527 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | /* |
| 529 | * This structure is for use by the xfs_mod_incore_sb_batch() routine. |
| 530 | */ |
| 531 | typedef struct xfs_mod_sb { |
| 532 | xfs_sb_field_t msb_field; /* Field to modify, see below */ |
| 533 | int msb_delta; /* Change to make to specified field */ |
| 534 | } xfs_mod_sb_t; |
| 535 | |
| 536 | #define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock), PINOD) |
| 537 | #define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock)) |
| 538 | #define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock) |
| 539 | #define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s)) |
| 540 | |
| 541 | extern xfs_mount_t *xfs_mount_init(void); |
| 542 | extern void xfs_mod_sb(xfs_trans_t *, __int64_t); |
| 543 | extern void xfs_mount_free(xfs_mount_t *mp, int remove_bhv); |
| 544 | extern int xfs_mountfs(struct vfs *, xfs_mount_t *mp, int); |
Christoph Hellwig | f538d4d | 2005-11-02 10:26:59 +1100 | [diff] [blame] | 545 | extern void xfs_mountfs_check_barriers(xfs_mount_t *mp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | |
| 547 | extern int xfs_unmountfs(xfs_mount_t *, struct cred *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | extern void xfs_unmountfs_close(xfs_mount_t *, struct cred *); |
| 549 | extern int xfs_unmountfs_writesb(xfs_mount_t *); |
| 550 | extern int xfs_unmount_flush(xfs_mount_t *, int); |
| 551 | extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int, int); |
| 552 | extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, |
| 553 | uint, int); |
| 554 | extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); |
| 555 | extern int xfs_readsb(xfs_mount_t *mp); |
| 556 | extern void xfs_freesb(xfs_mount_t *); |
| 557 | extern void xfs_do_force_shutdown(bhv_desc_t *, int, char *, int); |
| 558 | extern int xfs_syncsub(xfs_mount_t *, int, int, int *); |
Nathan Scott | ee34807 | 2005-11-02 10:32:38 +1100 | [diff] [blame] | 559 | extern int xfs_sync_inodes(xfs_mount_t *, int, int, int *); |
Nathan Scott | c11e2c3 | 2005-11-02 15:11:45 +1100 | [diff] [blame^] | 560 | extern xfs_agnumber_t xfs_initialize_perag(struct vfs *, xfs_mount_t *, |
| 561 | xfs_agnumber_t); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | extern void xfs_xlatesb(void *, struct xfs_sb *, int, __int64_t); |
| 563 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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__ */ |