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__ |
Barry Naujok | 847fff5 | 2008-10-30 17:05:38 +1100 | [diff] [blame] | 46 | |
Eric Sandeen | 9d87c31 | 2009-01-14 23:22:07 -0600 | [diff] [blame] | 47 | #define xfs_daddr_to_agno(mp,d) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks)) |
Eric Sandeen | 9d87c31 | 2009-01-14 23:22:07 -0600 | [diff] [blame] | 49 | #define xfs_daddr_to_agbno(mp,d) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks)) |
Barry Naujok | 847fff5 | 2008-10-30 17:05:38 +1100 | [diff] [blame] | 51 | |
| 52 | #else /* __KERNEL__ */ |
| 53 | |
Christoph Hellwig | 6d73cf1 | 2008-12-09 04:47:32 -0500 | [diff] [blame] | 54 | #include "xfs_sync.h" |
| 55 | |
Mark Tinguely | f7bdf03 | 2012-06-14 09:22:15 -0500 | [diff] [blame] | 56 | struct xlog; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | struct xfs_mount_args; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | struct xfs_inode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | struct xfs_bmbt_irec; |
| 60 | struct xfs_bmap_free; |
Olaf Weber | 3e57ecf | 2006-06-09 14:48:12 +1000 | [diff] [blame] | 61 | struct xfs_extdelta; |
| 62 | struct xfs_swapext; |
David Chinner | 2a82b8b | 2007-07-11 11:09:12 +1000 | [diff] [blame] | 63 | struct xfs_mru_cache; |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 64 | struct xfs_nameops; |
David Chinner | 82fa901 | 2008-10-30 17:38:26 +1100 | [diff] [blame] | 65 | struct xfs_ail; |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 66 | struct xfs_quotainfo; |
| 67 | |
David Chinner | 8d280b9 | 2006-03-14 13:13:09 +1100 | [diff] [blame] | 68 | #ifdef HAVE_PERCPU_SB |
| 69 | |
| 70 | /* |
| 71 | * Valid per-cpu incore superblock counters. Note that if you add new counters, |
| 72 | * you may need to define new counter disabled bit field descriptors as there |
| 73 | * are more possible fields in the superblock that can fit in a bitfield on a |
| 74 | * 32 bit platform. The XFS_SBS_* values for the current current counters just |
| 75 | * fit. |
| 76 | */ |
| 77 | typedef struct xfs_icsb_cnts { |
| 78 | uint64_t icsb_fdblocks; |
| 79 | uint64_t icsb_ifree; |
| 80 | uint64_t icsb_icount; |
David Chinner | 01e1b69 | 2006-03-14 13:29:16 +1100 | [diff] [blame] | 81 | unsigned long icsb_flags; |
David Chinner | 8d280b9 | 2006-03-14 13:13:09 +1100 | [diff] [blame] | 82 | } xfs_icsb_cnts_t; |
| 83 | |
David Chinner | 01e1b69 | 2006-03-14 13:29:16 +1100 | [diff] [blame] | 84 | #define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */ |
| 85 | |
David Chinner | 8d280b9 | 2006-03-14 13:13:09 +1100 | [diff] [blame] | 86 | #define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */ |
| 87 | |
| 88 | extern int xfs_icsb_init_counters(struct xfs_mount *); |
Lachlan McIlroy | 5478eea | 2007-02-10 18:36:29 +1100 | [diff] [blame] | 89 | extern void xfs_icsb_reinit_counters(struct xfs_mount *); |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 90 | extern void xfs_icsb_destroy_counters(struct xfs_mount *); |
Christoph Hellwig | d4d90b5 | 2008-04-22 17:34:37 +1000 | [diff] [blame] | 91 | extern void xfs_icsb_sync_counters(struct xfs_mount *, int); |
| 92 | extern void xfs_icsb_sync_counters_locked(struct xfs_mount *, int); |
Christoph Hellwig | 96540c7 | 2010-09-30 02:25:55 +0000 | [diff] [blame] | 93 | extern int xfs_icsb_modify_counters(struct xfs_mount *, xfs_sb_field_t, |
| 94 | int64_t, int); |
David Chinner | 8d280b9 | 2006-03-14 13:13:09 +1100 | [diff] [blame] | 95 | |
| 96 | #else |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 97 | #define xfs_icsb_init_counters(mp) (0) |
| 98 | #define xfs_icsb_destroy_counters(mp) do { } while (0) |
| 99 | #define xfs_icsb_reinit_counters(mp) do { } while (0) |
Christoph Hellwig | d4d90b5 | 2008-04-22 17:34:37 +1000 | [diff] [blame] | 100 | #define xfs_icsb_sync_counters(mp, flags) do { } while (0) |
Eric Sandeen | 7155054 | 2008-04-29 12:53:00 +1000 | [diff] [blame] | 101 | #define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0) |
Christoph Hellwig | 96540c7 | 2010-09-30 02:25:55 +0000 | [diff] [blame] | 102 | #define xfs_icsb_modify_counters(mp, field, delta, rsvd) \ |
| 103 | xfs_mod_incore_sb(mp, field, delta, rsvd) |
David Chinner | 8d280b9 | 2006-03-14 13:13:09 +1100 | [diff] [blame] | 104 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | |
Dave Chinner | 055388a | 2011-01-04 11:35:03 +1100 | [diff] [blame] | 106 | /* dynamic preallocation free space thresholds, 5% down to 1% */ |
| 107 | enum { |
| 108 | XFS_LOWSP_1_PCNT = 0, |
| 109 | XFS_LOWSP_2_PCNT, |
| 110 | XFS_LOWSP_3_PCNT, |
| 111 | XFS_LOWSP_4_PCNT, |
| 112 | XFS_LOWSP_5_PCNT, |
| 113 | XFS_LOWSP_MAX, |
| 114 | }; |
| 115 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | typedef struct xfs_mount { |
Christoph Hellwig | b267ce9 | 2007-08-30 17:21:30 +1000 | [diff] [blame] | 117 | struct super_block *m_super; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | xfs_tid_t m_tid; /* next unused tid for fs */ |
David Chinner | 82fa901 | 2008-10-30 17:38:26 +1100 | [diff] [blame] | 119 | struct xfs_ail *m_ail; /* fs active log item list */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | xfs_sb_t m_sb; /* copy of fs superblock */ |
Eric Sandeen | 3685c2a | 2007-10-11 17:42:32 +1000 | [diff] [blame] | 121 | spinlock_t m_sb_lock; /* sb counter lock */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | struct xfs_buf *m_sb_bp; /* buffer for superblock */ |
| 123 | char *m_fsname; /* filesystem name */ |
| 124 | int m_fsname_len; /* strlen of fs name */ |
Nathan Scott | fc1f8c1 | 2005-11-02 11:44:33 +1100 | [diff] [blame] | 125 | char *m_rtname; /* realtime device name */ |
| 126 | char *m_logname; /* external log device name */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | int m_bsize; /* fs logical block size */ |
| 128 | xfs_agnumber_t m_agfrotor; /* last ag where space found */ |
| 129 | xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ |
Eric Sandeen | 36e41ee | 2007-10-11 17:43:43 +1000 | [diff] [blame] | 130 | spinlock_t m_agirotor_lock;/* .. and lock protecting it */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | xfs_agnumber_t m_maxagi; /* highest inode alloc group */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | uint m_readio_log; /* min read size log bytes */ |
| 133 | uint m_readio_blocks; /* min read size blocks */ |
| 134 | uint m_writeio_log; /* min write size log bytes */ |
| 135 | uint m_writeio_blocks; /* min write size blocks */ |
Mark Tinguely | f7bdf03 | 2012-06-14 09:22:15 -0500 | [diff] [blame] | 136 | struct xlog *m_log; /* log specific stuff */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | int m_logbufs; /* number of log buffers */ |
| 138 | int m_logbsize; /* size of each log buffer */ |
| 139 | uint m_rsumlevels; /* rt summary levels */ |
| 140 | uint m_rsumsize; /* size of rt summary, bytes */ |
| 141 | struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ |
| 142 | struct xfs_inode *m_rsumip; /* pointer to summary inode */ |
| 143 | struct xfs_inode *m_rootip; /* pointer to root directory */ |
| 144 | struct xfs_quotainfo *m_quotainfo; /* disk quota information */ |
| 145 | xfs_buftarg_t *m_ddev_targp; /* saves taking the address */ |
| 146 | xfs_buftarg_t *m_logdev_targp;/* ptr to log device */ |
| 147 | xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | __uint8_t m_blkbit_log; /* blocklog + NBBY */ |
| 149 | __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ |
| 150 | __uint8_t m_agno_log; /* log #ag's */ |
| 151 | __uint8_t m_agino_log; /* #bits for agino in inum */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | __uint16_t m_inode_cluster_size;/* min inode buf size */ |
| 153 | uint m_blockmask; /* sb_blocksize-1 */ |
| 154 | uint m_blockwsize; /* sb_blocksize in words */ |
| 155 | uint m_blockwmask; /* blockwsize-1 */ |
Christoph Hellwig | 60197e8 | 2008-10-30 17:11:19 +1100 | [diff] [blame] | 156 | uint m_alloc_mxr[2]; /* max alloc btree records */ |
| 157 | uint m_alloc_mnr[2]; /* min alloc btree records */ |
| 158 | uint m_bmap_dmxr[2]; /* max bmap btree records */ |
| 159 | uint m_bmap_dmnr[2]; /* min bmap btree records */ |
| 160 | uint m_inobt_mxr[2]; /* max inobt btree records */ |
| 161 | uint m_inobt_mnr[2]; /* min inobt btree records */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ |
| 163 | uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ |
Christoph Hellwig | 0d87e65 | 2009-02-09 08:37:14 +0100 | [diff] [blame] | 164 | uint m_in_maxlevels; /* max inobt btree levels. */ |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 165 | struct radix_tree_root m_perag_tree; /* per-ag accounting info */ |
| 166 | spinlock_t m_perag_lock; /* lock for m_perag_tree */ |
Christoph Hellwig | cc92e7a | 2007-08-30 17:21:54 +1000 | [diff] [blame] | 167 | struct mutex m_growlock; /* growfs mutex */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | int m_fixedfsid[2]; /* unchanged for life of FS */ |
| 169 | uint m_dmevmask; /* DMI events for this FS */ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 170 | __uint64_t m_flags; /* global mount flags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | uint m_dir_node_ents; /* #entries in a dir danode */ |
| 172 | uint m_attr_node_ents; /* #entries in attr danode */ |
| 173 | int m_ialloc_inos; /* inodes in inode allocation */ |
| 174 | int m_ialloc_blks; /* blocks in inode allocation */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | int m_inoalign_mask;/* mask sb_inoalignmt if used */ |
| 176 | uint m_qflags; /* quota status flags */ |
| 177 | xfs_trans_reservations_t m_reservations;/* precomputed res values */ |
| 178 | __uint64_t m_maxicount; /* maximum inode count */ |
| 179 | __uint64_t m_maxioffset; /* maximum inode offset */ |
| 180 | __uint64_t m_resblks; /* total reserved blocks */ |
| 181 | __uint64_t m_resblks_avail;/* available reserved blocks */ |
Dave Chinner | cbe132a | 2010-01-26 15:08:49 +1100 | [diff] [blame] | 182 | __uint64_t m_resblks_save; /* reserved blks @ remount,ro */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | int m_dalign; /* stripe unit */ |
| 184 | int m_swidth; /* stripe width */ |
Nathan Scott | c41564b | 2006-03-29 08:55:14 +1000 | [diff] [blame] | 185 | int m_sinoalign; /* stripe unit inode alignment */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | int m_attr_magicpct;/* 37% of the blocksize */ |
| 187 | int m_dir_magicpct; /* 37% of the dir blocksize */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | __uint8_t m_sectbb_log; /* sectlog - BBSHIFT */ |
Barry Naujok | 5163f95 | 2008-05-21 16:41:01 +1000 | [diff] [blame] | 189 | const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | int m_dirblksize; /* directory block sz--bytes */ |
| 191 | int m_dirblkfsbs; /* directory block sz--fsbs */ |
| 192 | xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ |
| 193 | xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ |
| 194 | xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ |
| 195 | uint m_chsize; /* size of next field */ |
| 196 | struct xfs_chash *m_chash; /* fs private inode per-cluster |
| 197 | * hash table */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | atomic_t m_active_trans; /* number trans frozen */ |
David Chinner | 8d280b9 | 2006-03-14 13:13:09 +1100 | [diff] [blame] | 199 | #ifdef HAVE_PERCPU_SB |
Tejun Heo | 003cb60 | 2010-02-02 14:39:01 +0900 | [diff] [blame] | 200 | xfs_icsb_cnts_t __percpu *m_sb_cnts; /* per-cpu superblock counters */ |
David Chinner | 8d280b9 | 2006-03-14 13:13:09 +1100 | [diff] [blame] | 201 | unsigned long m_icsb_counters; /* disabled per-cpu counters */ |
David Chinner | e8234a6 | 2006-03-14 13:23:52 +1100 | [diff] [blame] | 202 | struct notifier_block m_icsb_notifier; /* hotplug cpu notifier */ |
David Chinner | 20b6428 | 2007-02-10 18:35:09 +1100 | [diff] [blame] | 203 | struct mutex m_icsb_mutex; /* balancer sync lock */ |
David Chinner | 8d280b9 | 2006-03-14 13:13:09 +1100 | [diff] [blame] | 204 | #endif |
David Chinner | 2a82b8b | 2007-07-11 11:09:12 +1000 | [diff] [blame] | 205 | struct xfs_mru_cache *m_filestream; /* per-mount filestream data */ |
Dave Chinner | c6d09b6 | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 206 | struct delayed_work m_sync_work; /* background sync work */ |
Dave Chinner | a7b339f | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 207 | struct delayed_work m_reclaim_work; /* background inode reclaim */ |
Dave Chinner | 89e4cb5 | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 208 | struct work_struct m_flush_work; /* background inode flush */ |
Christoph Hellwig | 7884bc8 | 2009-01-19 02:04:07 +0100 | [diff] [blame] | 209 | __int64_t m_update_flags; /* sb flags we need to update |
| 210 | on the next remount,rw */ |
Dave Chinner | 70e60ce | 2010-07-20 08:07:02 +1000 | [diff] [blame] | 211 | struct shrinker m_inode_shrink; /* inode reclaim shrinker */ |
Dave Chinner | 055388a | 2011-01-04 11:35:03 +1100 | [diff] [blame] | 212 | int64_t m_low_space[XFS_LOWSP_MAX]; |
| 213 | /* low free space thresholds */ |
Christoph Hellwig | aa6bf01 | 2012-02-29 09:53:48 +0000 | [diff] [blame] | 214 | |
| 215 | struct workqueue_struct *m_data_workqueue; |
| 216 | struct workqueue_struct *m_unwritten_workqueue; |
Dave Chinner | 4c2d542 | 2012-04-23 17:54:32 +1000 | [diff] [blame] | 217 | struct workqueue_struct *m_cil_workqueue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | } xfs_mount_t; |
| 219 | |
| 220 | /* |
| 221 | * Flags for m_flags. |
| 222 | */ |
David Chinner | 92821e2 | 2007-05-24 15:26:31 +1000 | [diff] [blame] | 223 | #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | must be synchronous except |
| 225 | for space allocations */ |
David Chinner | 92821e2 | 2007-05-24 15:26:31 +1000 | [diff] [blame] | 226 | #define XFS_MOUNT_WAS_CLEAN (1ULL << 3) |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 227 | #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | operations, typically for |
| 229 | disk errors in metadata */ |
Christoph Hellwig | e84661a | 2011-05-20 13:45:32 +0000 | [diff] [blame] | 230 | #define XFS_MOUNT_DISCARD (1ULL << 5) /* discard unused blocks */ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 231 | #define XFS_MOUNT_RETERR (1ULL << 6) /* return alignment errors to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | user */ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 233 | #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | allocations */ |
Nathan Scott | 13059ff | 2006-01-11 15:32:01 +1100 | [diff] [blame] | 235 | #define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */ |
Christoph Hellwig | bd186aa | 2007-08-30 17:21:12 +1000 | [diff] [blame] | 236 | #define XFS_MOUNT_GRPID (1ULL << 9) /* group-ID assigned from directory */ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 237 | #define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 238 | #define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 239 | #define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | * 32 bits in size */ |
Christoph Hellwig | bd186aa | 2007-08-30 17:21:12 +1000 | [diff] [blame] | 241 | #define XFS_MOUNT_SMALL_INUMS (1ULL << 15) /* users wants 32bit inodes */ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 242 | #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */ |
| 243 | #define XFS_MOUNT_BARRIER (1ULL << 17) |
Josef Jeff Sipek | 1bd960e | 2008-02-29 13:58:40 +1100 | [diff] [blame] | 244 | #define XFS_MOUNT_IKEEP (1ULL << 18) /* keep empty inode clusters*/ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 245 | #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | * allocation */ |
Christoph Hellwig | bd186aa | 2007-08-30 17:21:12 +1000 | [diff] [blame] | 247 | #define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */ |
Nathan Scott | e718eeb4 | 2005-11-02 15:09:22 +1100 | [diff] [blame] | 248 | #define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */ |
| 249 | #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred |
David Chinner | e8c8b3a | 2005-11-02 10:33:05 +1100 | [diff] [blame] | 250 | * I/O size in stat() */ |
David Chinner | 2a82b8b | 2007-07-11 11:09:12 +1000 | [diff] [blame] | 251 | #define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams |
| 252 | allocator */ |
Tim Shimmin | 7c12f29 | 2008-04-30 18:15:28 +1000 | [diff] [blame] | 253 | #define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */ |
David Chinner | e8c8b3a | 2005-11-02 10:33:05 +1100 | [diff] [blame] | 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
| 256 | /* |
| 257 | * Default minimum read and write sizes. |
| 258 | */ |
| 259 | #define XFS_READIO_LOG_LARGE 16 |
| 260 | #define XFS_WRITEIO_LOG_LARGE 16 |
| 261 | |
| 262 | /* |
Nathan Scott | 1f443ad | 2005-05-05 13:28:29 -0700 | [diff] [blame] | 263 | * Max and min values for mount-option defined I/O |
| 264 | * preallocation sizes. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | */ |
Nathan Scott | 1f443ad | 2005-05-05 13:28:29 -0700 | [diff] [blame] | 266 | #define XFS_MAX_IO_LOG 30 /* 1G */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | #define XFS_MIN_IO_LOG PAGE_SHIFT |
| 268 | |
| 269 | /* |
| 270 | * Synchronous read and write sizes. This should be |
| 271 | * better for NFSv2 wsync filesystems. |
| 272 | */ |
Malcolm Parsons | 9da096f | 2009-03-29 09:55:42 +0200 | [diff] [blame] | 273 | #define XFS_WSYNC_READIO_LOG 15 /* 32k */ |
| 274 | #define XFS_WSYNC_WRITEIO_LOG 14 /* 16k */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
David Chinner | e8c8b3a | 2005-11-02 10:33:05 +1100 | [diff] [blame] | 276 | /* |
| 277 | * Allow large block sizes to be reported to userspace programs if the |
Barry Naujok | 556b8b1 | 2008-04-10 12:22:07 +1000 | [diff] [blame] | 278 | * "largeio" mount option is used. |
David Chinner | e8c8b3a | 2005-11-02 10:33:05 +1100 | [diff] [blame] | 279 | * |
| 280 | * If compatibility mode is specified, simply return the basic unit of caching |
| 281 | * so that we don't get inefficient read/modify/write I/O from user apps. |
| 282 | * Otherwise.... |
| 283 | * |
| 284 | * If the underlying volume is a stripe, then return the stripe width in bytes |
| 285 | * as the recommended I/O size. It is not a stripe and we've set a default |
| 286 | * buffered I/O size, return that, otherwise return the compat default. |
| 287 | */ |
| 288 | static inline unsigned long |
| 289 | xfs_preferred_iosize(xfs_mount_t *mp) |
| 290 | { |
| 291 | if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE) |
| 292 | return PAGE_CACHE_SIZE; |
| 293 | return (mp->m_swidth ? |
| 294 | (mp->m_swidth << mp->m_sb.sb_blocklog) : |
| 295 | ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ? |
| 296 | (1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) : |
| 297 | PAGE_CACHE_SIZE)); |
| 298 | } |
| 299 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | #define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset) |
| 301 | |
David Chinner | 92821e2 | 2007-05-24 15:26:31 +1000 | [diff] [blame] | 302 | #define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \ |
| 303 | ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN) |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 305 | void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname, |
| 306 | int lnnum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | #define xfs_force_shutdown(m,f) \ |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 308 | xfs_do_force_shutdown(m, f, __FILE__, __LINE__) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
Christoph Hellwig | 2b5decd | 2008-11-28 14:23:36 +1100 | [diff] [blame] | 310 | #define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ |
| 311 | #define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ |
| 312 | #define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */ |
| 313 | #define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */ |
| 314 | #define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */ |
| 315 | #define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */ |
| 316 | |
| 317 | #define xfs_test_for_freeze(mp) ((mp)->m_super->s_frozen) |
| 318 | #define xfs_wait_for_freeze(mp,l) vfs_check_frozen((mp)->m_super, (l)) |
| 319 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | * Flags for xfs_mountfs |
| 322 | */ |
Nathan Scott | 764d1f8 | 2006-03-31 13:04:17 +1000 | [diff] [blame] | 323 | #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 325 | static inline xfs_agnumber_t |
| 326 | xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | { |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 328 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
| 329 | do_div(ld, mp->m_sb.sb_agblocks); |
| 330 | return (xfs_agnumber_t) ld; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 333 | static inline xfs_agblock_t |
| 334 | xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | { |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 336 | xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d); |
| 337 | return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | } |
| 339 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | /* |
Dave Chinner | aed3bb9 | 2010-01-11 11:47:45 +0000 | [diff] [blame] | 341 | * perag get/put wrappers for ref counting |
David Chinner | da353b0 | 2007-08-28 14:00:13 +1000 | [diff] [blame] | 342 | */ |
Dave Chinner | 0fa800f | 2010-01-11 11:47:46 +0000 | [diff] [blame] | 343 | struct xfs_perag *xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno); |
Dave Chinner | 65d0f20 | 2010-09-24 18:40:15 +1000 | [diff] [blame] | 344 | struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *mp, xfs_agnumber_t agno, |
| 345 | int tag); |
Dave Chinner | 0fa800f | 2010-01-11 11:47:46 +0000 | [diff] [blame] | 346 | void xfs_perag_put(struct xfs_perag *pag); |
David Chinner | da353b0 | 2007-08-28 14:00:13 +1000 | [diff] [blame] | 347 | |
| 348 | /* |
David Chinner | 03135cf | 2007-02-10 18:35:15 +1100 | [diff] [blame] | 349 | * Per-cpu superblock locking functions |
| 350 | */ |
| 351 | #ifdef HAVE_PERCPU_SB |
Christoph Hellwig | b8f82a4 | 2009-11-14 16:17:22 +0000 | [diff] [blame] | 352 | static inline void |
David Chinner | 03135cf | 2007-02-10 18:35:15 +1100 | [diff] [blame] | 353 | xfs_icsb_lock(xfs_mount_t *mp) |
| 354 | { |
| 355 | mutex_lock(&mp->m_icsb_mutex); |
| 356 | } |
| 357 | |
Christoph Hellwig | b8f82a4 | 2009-11-14 16:17:22 +0000 | [diff] [blame] | 358 | static inline void |
David Chinner | 03135cf | 2007-02-10 18:35:15 +1100 | [diff] [blame] | 359 | xfs_icsb_unlock(xfs_mount_t *mp) |
| 360 | { |
| 361 | mutex_unlock(&mp->m_icsb_mutex); |
| 362 | } |
| 363 | #else |
| 364 | #define xfs_icsb_lock(mp) |
| 365 | #define xfs_icsb_unlock(mp) |
| 366 | #endif |
| 367 | |
| 368 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | * This structure is for use by the xfs_mod_incore_sb_batch() routine. |
David Chinner | 20f4ebf | 2007-02-10 18:36:10 +1100 | [diff] [blame] | 370 | * xfs_growfs can specify a few fields which are more than int limit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | */ |
| 372 | typedef struct xfs_mod_sb { |
| 373 | xfs_sb_field_t msb_field; /* Field to modify, see below */ |
David Chinner | 20f4ebf | 2007-02-10 18:36:10 +1100 | [diff] [blame] | 374 | int64_t msb_delta; /* Change to make to specified field */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | } xfs_mod_sb_t; |
| 376 | |
Chandra Seetharaman | adab0f6 | 2011-06-29 22:10:14 +0000 | [diff] [blame] | 377 | extern int xfs_log_sbcount(xfs_mount_t *); |
Eric Sandeen | d5db0f9 | 2010-02-05 22:59:53 +0000 | [diff] [blame] | 378 | extern __uint64_t xfs_default_resblks(xfs_mount_t *mp); |
Christoph Hellwig | 4249023 | 2008-08-13 16:49:32 +1000 | [diff] [blame] | 379 | extern int xfs_mountfs(xfs_mount_t *mp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | |
Christoph Hellwig | 41b5c2e | 2008-08-13 16:49:57 +1000 | [diff] [blame] | 381 | extern void xfs_unmountfs(xfs_mount_t *); |
David Chinner | 20f4ebf | 2007-02-10 18:36:10 +1100 | [diff] [blame] | 382 | extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, |
| 384 | uint, int); |
Christoph Hellwig | 7884bc8 | 2009-01-19 02:04:07 +0100 | [diff] [blame] | 385 | extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); |
Nathan Scott | 764d1f8 | 2006-03-31 13:04:17 +1000 | [diff] [blame] | 387 | extern int xfs_readsb(xfs_mount_t *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | extern void xfs_freesb(xfs_mount_t *); |
David Chinner | 92821e2 | 2007-05-24 15:26:31 +1000 | [diff] [blame] | 389 | extern int xfs_fs_writable(xfs_mount_t *); |
Nathan Scott | 4cc929e | 2007-05-14 18:24:02 +1000 | [diff] [blame] | 390 | extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | |
Christoph Hellwig | d7658d4 | 2010-02-17 19:36:13 +0000 | [diff] [blame] | 392 | extern int xfs_dev_is_read_only(struct xfs_mount *, char *); |
| 393 | |
Dave Chinner | 055388a | 2011-01-04 11:35:03 +1100 | [diff] [blame] | 394 | extern void xfs_set_low_space_thresholds(struct xfs_mount *); |
| 395 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | #endif /* __KERNEL__ */ |
| 397 | |
Barry Naujok | 847fff5 | 2008-10-30 17:05:38 +1100 | [diff] [blame] | 398 | extern void xfs_mod_sb(struct xfs_trans *, __int64_t); |
Dave Chinner | 1c1c6eb | 2010-01-11 11:47:44 +0000 | [diff] [blame] | 399 | extern int xfs_initialize_perag(struct xfs_mount *, xfs_agnumber_t, |
| 400 | xfs_agnumber_t *); |
Chandra Seetharaman | 6bd92a2 | 2012-01-23 17:31:37 +0000 | [diff] [blame] | 401 | extern void xfs_sb_from_disk(struct xfs_mount *, struct xfs_dsb *); |
Barry Naujok | 847fff5 | 2008-10-30 17:05:38 +1100 | [diff] [blame] | 402 | extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t); |
| 403 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | #endif /* __XFS_MOUNT_H__ */ |