10b61f8a4SDave Chinner // SPDX-License-Identifier: GPL-2.0
21da177e4SLinus Torvalds /*
37b718769SNathan Scott * Copyright (c) 2000-2005 Silicon Graphics, Inc.
47b718769SNathan Scott * All Rights Reserved.
51da177e4SLinus Torvalds */
61da177e4SLinus Torvalds #ifndef __XFS_MOUNT_H__
71da177e4SLinus Torvalds #define __XFS_MOUNT_H__
81da177e4SLinus Torvalds
9ad223e60SMark Tinguely struct xlog;
101da177e4SLinus Torvalds struct xfs_inode;
112a82b8beSDavid Chinner struct xfs_mru_cache;
1282fa9012SDavid Chinner struct xfs_ail;
137d095257SChristoph Hellwig struct xfs_quotainfo;
140650b554SDave Chinner struct xfs_da_geometry;
1507b6403aSDave Chinner struct xfs_perag;
167d095257SChristoph Hellwig
17055388a3SDave Chinner /* dynamic preallocation free space thresholds, 5% down to 1% */
18055388a3SDave Chinner enum {
19055388a3SDave Chinner XFS_LOWSP_1_PCNT = 0,
20055388a3SDave Chinner XFS_LOWSP_2_PCNT,
21055388a3SDave Chinner XFS_LOWSP_3_PCNT,
22055388a3SDave Chinner XFS_LOWSP_4_PCNT,
23055388a3SDave Chinner XFS_LOWSP_5_PCNT,
24055388a3SDave Chinner XFS_LOWSP_MAX,
25055388a3SDave Chinner };
26055388a3SDave Chinner
27192852beSCarlos Maiolino /*
28192852beSCarlos Maiolino * Error Configuration
29192852beSCarlos Maiolino *
30192852beSCarlos Maiolino * Error classes define the subsystem the configuration belongs to.
31192852beSCarlos Maiolino * Error numbers define the errors that are configurable.
32192852beSCarlos Maiolino */
33192852beSCarlos Maiolino enum {
34ffd40ef6SCarlos Maiolino XFS_ERR_METADATA,
35192852beSCarlos Maiolino XFS_ERR_CLASS_MAX,
36192852beSCarlos Maiolino };
37192852beSCarlos Maiolino enum {
38ffd40ef6SCarlos Maiolino XFS_ERR_DEFAULT,
39e0a431b3SCarlos Maiolino XFS_ERR_EIO,
40e0a431b3SCarlos Maiolino XFS_ERR_ENOSPC,
41e0a431b3SCarlos Maiolino XFS_ERR_ENODEV,
42192852beSCarlos Maiolino XFS_ERR_ERRNO_MAX,
43192852beSCarlos Maiolino };
44192852beSCarlos Maiolino
45a5ea70d2SCarlos Maiolino #define XFS_ERR_RETRY_FOREVER -1
46a5ea70d2SCarlos Maiolino
4777169812SEric Sandeen /*
4877169812SEric Sandeen * Although retry_timeout is in jiffies which is normally an unsigned long,
4977169812SEric Sandeen * we limit the retry timeout to 86400 seconds, or one day. So even a
5077169812SEric Sandeen * signed 32-bit long is sufficient for a HZ value up to 24855. Making it
5177169812SEric Sandeen * signed lets us store the special "-1" value, meaning retry forever.
5277169812SEric Sandeen */
53192852beSCarlos Maiolino struct xfs_error_cfg {
54192852beSCarlos Maiolino struct xfs_kobj kobj;
55192852beSCarlos Maiolino int max_retries;
5677169812SEric Sandeen long retry_timeout; /* in jiffies, -1 = infinite */
57192852beSCarlos Maiolino };
58192852beSCarlos Maiolino
59b0dff466SDave Chinner /*
60ab23a776SDave Chinner * Per-cpu deferred inode inactivation GC lists.
61ab23a776SDave Chinner */
62ab23a776SDave Chinner struct xfs_inodegc {
6362334fabSDarrick J. Wong struct xfs_mount *mp;
64ab23a776SDave Chinner struct llist_head list;
657cf2b0f9SDave Chinner struct delayed_work work;
66d4d12c02SDave Chinner int error;
67ab23a776SDave Chinner
68ab23a776SDave Chinner /* approximate count of inodes in the list */
69ab23a776SDave Chinner unsigned int items;
7040b1de00SDarrick J. Wong unsigned int shrinker_hits;
71b37c4c83SDarrick J. Wong unsigned int cpu;
72ab23a776SDave Chinner };
73ab23a776SDave Chinner
74ab23a776SDave Chinner /*
75b0dff466SDave Chinner * The struct xfsmount layout is optimised to separate read-mostly variables
76b0dff466SDave Chinner * from variables that are frequently modified. We put the read-mostly variables
77b0dff466SDave Chinner * first, then place all the other variables at the end.
78b0dff466SDave Chinner *
79b0dff466SDave Chinner * Typically, read-mostly variables are those that are set at mount time and
80b0dff466SDave Chinner * never changed again, or only change rarely as a result of things like sysfs
81b0dff466SDave Chinner * knobs being tweaked.
82b0dff466SDave Chinner */
831da177e4SLinus Torvalds typedef struct xfs_mount {
84501ab323SDave Chinner struct xfs_sb m_sb; /* copy of fs superblock */
85b0dff466SDave Chinner struct super_block *m_super;
86b0dff466SDave Chinner struct xfs_ail *m_ail; /* fs active log item list */
871da177e4SLinus Torvalds struct xfs_buf *m_sb_bp; /* buffer for superblock */
88fc1f8c1cSNathan Scott char *m_rtname; /* realtime device name */
89fc1f8c1cSNathan Scott char *m_logname; /* external log device name */
900650b554SDave Chinner struct xfs_da_geometry *m_dir_geo; /* directory block geometry */
910650b554SDave Chinner struct xfs_da_geometry *m_attr_geo; /* attribute block geometry */
92ad223e60SMark Tinguely struct xlog *m_log; /* log specific stuff */
931da177e4SLinus Torvalds struct xfs_inode *m_rbmip; /* pointer to bitmap inode */
941da177e4SLinus Torvalds struct xfs_inode *m_rsumip; /* pointer to summary inode */
951da177e4SLinus Torvalds struct xfs_inode *m_rootip; /* pointer to root directory */
961da177e4SLinus Torvalds struct xfs_quotainfo *m_quotainfo; /* disk quota information */
971da177e4SLinus Torvalds xfs_buftarg_t *m_ddev_targp; /* saves taking the address */
981da177e4SLinus Torvalds xfs_buftarg_t *m_logdev_targp;/* ptr to log device */
991da177e4SLinus Torvalds xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */
100ab23a776SDave Chinner void __percpu *m_inodegc; /* percpu inodegc structures */
101ab23a776SDave Chinner
102b0dff466SDave Chinner /*
103b0dff466SDave Chinner * Optional cache of rt summary level per bitmap block with the
104b0dff466SDave Chinner * invariant that m_rsum_cache[bbno] <= the minimum i for which
105b0dff466SDave Chinner * rsum[i][bbno] != 0. Reads and writes are serialized by the rsumip
106b0dff466SDave Chinner * inode lock.
107b0dff466SDave Chinner */
108b0dff466SDave Chinner uint8_t *m_rsum_cache;
109b0dff466SDave Chinner struct xfs_mru_cache *m_filestream; /* per-mount filestream data */
110b0dff466SDave Chinner struct workqueue_struct *m_buf_workqueue;
111b0dff466SDave Chinner struct workqueue_struct *m_unwritten_workqueue;
112b0dff466SDave Chinner struct workqueue_struct *m_reclaim_workqueue;
113b0dff466SDave Chinner struct workqueue_struct *m_sync_workqueue;
114ab23a776SDave Chinner struct workqueue_struct *m_blockgc_wq;
115ab23a776SDave Chinner struct workqueue_struct *m_inodegc_wq;
116b0dff466SDave Chinner
117b0dff466SDave Chinner int m_bsize; /* fs logical block size */
118c8ce540dSDarrick J. Wong uint8_t m_blkbit_log; /* blocklog + NBBY */
119c8ce540dSDarrick J. Wong uint8_t m_blkbb_log; /* blocklog - BBSHIFT */
120c8ce540dSDarrick J. Wong uint8_t m_agno_log; /* log #ag's */
121b0dff466SDave Chinner uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
1221da177e4SLinus Torvalds uint m_blockmask; /* sb_blocksize-1 */
1231da177e4SLinus Torvalds uint m_blockwsize; /* sb_blocksize in words */
1241da177e4SLinus Torvalds uint m_blockwmask; /* blockwsize-1 */
12560197e8dSChristoph Hellwig uint m_alloc_mxr[2]; /* max alloc btree records */
12660197e8dSChristoph Hellwig uint m_alloc_mnr[2]; /* min alloc btree records */
12760197e8dSChristoph Hellwig uint m_bmap_dmxr[2]; /* max bmap btree records */
12860197e8dSChristoph Hellwig uint m_bmap_dmnr[2]; /* min bmap btree records */
129035e00acSDarrick J. Wong uint m_rmap_mxr[2]; /* max rmap btree records */
130035e00acSDarrick J. Wong uint m_rmap_mnr[2]; /* min rmap btree records */
1311946b91cSDarrick J. Wong uint m_refc_mxr[2]; /* max refc btree records */
1321946b91cSDarrick J. Wong uint m_refc_mnr[2]; /* min refc btree records */
1337cb3efb4SDarrick J. Wong uint m_alloc_maxlevels; /* max alloc btree levels */
1347cb3efb4SDarrick J. Wong uint m_bm_maxlevels[2]; /* max bmap btree levels */
135035e00acSDarrick J. Wong uint m_rmap_maxlevels; /* max rmap btree levels */
1361946b91cSDarrick J. Wong uint m_refc_maxlevels; /* max refcount btree level */
137b74e15d7SDarrick J. Wong unsigned int m_agbtree_maxlevels; /* max level of all AG btrees */
1388018026eSDarrick J. Wong xfs_extlen_t m_ag_prealloc_blocks; /* reserved ag blocks */
13952548852SDarrick J. Wong uint m_alloc_set_aside; /* space we can't use */
14052548852SDarrick J. Wong uint m_ag_max_usable; /* max space per AG */
141b0dff466SDave Chinner int m_dalign; /* stripe unit */
142b0dff466SDave Chinner int m_swidth; /* stripe width */
143b0dff466SDave Chinner xfs_agnumber_t m_maxagi; /* highest inode alloc group */
144b0dff466SDave Chinner uint m_allocsize_log;/* min write size log bytes */
145b0dff466SDave Chinner uint m_allocsize_blocks; /* min write size blocks */
146b0dff466SDave Chinner int m_logbufs; /* number of log buffers */
147b0dff466SDave Chinner int m_logbsize; /* size of each log buffer */
148b0dff466SDave Chinner uint m_rsumlevels; /* rt summary levels */
149b0dff466SDave Chinner uint m_rsumsize; /* size of rt summary, bytes */
150b0dff466SDave Chinner int m_fixedfsid[2]; /* unchanged for life of FS */
151b0dff466SDave Chinner uint m_qflags; /* quota status flags */
152a1d86e8dSDave Chinner uint64_t m_features; /* active filesystem features */
15365f03d86SDarrick J. Wong uint64_t m_low_space[XFS_LOWSP_MAX];
15465f03d86SDarrick J. Wong uint64_t m_low_rtexts[XFS_LOWSP_MAX];
155b0dff466SDave Chinner struct xfs_ino_geometry m_ino_geo; /* inode geometry */
156b0dff466SDave Chinner struct xfs_trans_resv m_resv; /* precomputed res values */
157b0dff466SDave Chinner /* low free space thresholds */
158ab23a776SDave Chinner unsigned long m_opstate; /* dynamic state flags */
159b0dff466SDave Chinner bool m_always_cow;
160b0dff466SDave Chinner bool m_fail_unmount;
161b0dff466SDave Chinner bool m_finobt_nores; /* no per-AG finobt resv. */
162b0dff466SDave Chinner bool m_update_sb; /* sb needs update in mount */
163b0dff466SDave Chinner
164b0dff466SDave Chinner /*
165b0dff466SDave Chinner * Bitsets of per-fs metadata that have been checked and/or are sick.
166b0dff466SDave Chinner * Callers must hold m_sb_lock to access these two fields.
167b0dff466SDave Chinner */
168b0dff466SDave Chinner uint8_t m_fs_checked;
169b0dff466SDave Chinner uint8_t m_fs_sick;
170b0dff466SDave Chinner /*
171b0dff466SDave Chinner * Bitsets of rt metadata that have been checked and/or are sick.
172b0dff466SDave Chinner * Callers must hold m_sb_lock to access this field.
173b0dff466SDave Chinner */
174b0dff466SDave Chinner uint8_t m_rt_checked;
175b0dff466SDave Chinner uint8_t m_rt_sick;
176b0dff466SDave Chinner
177b0dff466SDave Chinner /*
178b0dff466SDave Chinner * End of read-mostly variables. Frequently written variables and locks
179b0dff466SDave Chinner * should be placed below this comment from now on. The first variable
180b0dff466SDave Chinner * here is marked as cacheline aligned so they it is separated from
181b0dff466SDave Chinner * the read-mostly variables.
182b0dff466SDave Chinner */
183b0dff466SDave Chinner
184b0dff466SDave Chinner spinlock_t ____cacheline_aligned m_sb_lock; /* sb counter lock */
185b0dff466SDave Chinner struct percpu_counter m_icount; /* allocated inodes counter */
186b0dff466SDave Chinner struct percpu_counter m_ifree; /* free inodes counter */
187b0dff466SDave Chinner struct percpu_counter m_fdblocks; /* free block counter */
1882229276cSDarrick J. Wong struct percpu_counter m_frextents; /* free rt extent counter */
1892229276cSDarrick J. Wong
190b0dff466SDave Chinner /*
191b0dff466SDave Chinner * Count of data device blocks reserved for delayed allocations,
192b0dff466SDave Chinner * including indlen blocks. Does not include allocated CoW staging
193b0dff466SDave Chinner * extents or anything related to the rt device.
194b0dff466SDave Chinner */
195b0dff466SDave Chinner struct percpu_counter m_delalloc_blks;
19616eaab83SBrian Foster /*
19716eaab83SBrian Foster * Global count of allocation btree blocks in use across all AGs. Only
19816eaab83SBrian Foster * used when perag reservation is enabled. Helps prevent block
19916eaab83SBrian Foster * reservation from attempting to reserve allocation btree blocks.
20016eaab83SBrian Foster */
20116eaab83SBrian Foster atomic64_t m_allocbt_blks;
202b0dff466SDave Chinner
2031c1c6ebcSDave Chinner struct radix_tree_root m_perag_tree; /* per-ag accounting info */
2041c1c6ebcSDave Chinner spinlock_t m_perag_lock; /* lock for m_perag_tree */
205c8ce540dSDarrick J. Wong uint64_t m_resblks; /* total reserved blocks */
206c8ce540dSDarrick J. Wong uint64_t m_resblks_avail;/* available reserved blocks */
207c8ce540dSDarrick J. Wong uint64_t m_resblks_save; /* reserved blks @ remount,ro */
208a7b339f1SDave Chinner struct delayed_work m_reclaim_work; /* background inode reclaim */
209a76dba3bSDarrick J. Wong struct dentry *m_debugfs; /* debugfs parent */
210a31b1d3dSBrian Foster struct xfs_kobj m_kobj;
211192852beSCarlos Maiolino struct xfs_kobj m_error_kobj;
212ffd40ef6SCarlos Maiolino struct xfs_kobj m_error_meta_kobj;
213192852beSCarlos Maiolino struct xfs_error_cfg m_error_cfg[XFS_ERR_CLASS_MAX][XFS_ERR_ERRNO_MAX];
214225e4635SBill O'Donnell struct xstats m_stats; /* per-fs stats */
215d7a74cadSDarrick J. Wong #ifdef CONFIG_XFS_ONLINE_SCRUB_STATS
216d7a74cadSDarrick J. Wong struct xchk_stats *m_scrub_stats;
217d7a74cadSDarrick J. Wong #endif
218b0dff466SDave Chinner xfs_agnumber_t m_agfrotor; /* last ag where space found */
21920a5eab4SDave Chinner atomic_t m_agirotor; /* last ag dir inode alloced */
220aa6bf01dSChristoph Hellwig
22140b1de00SDarrick J. Wong /* Memory shrinker to throttle and reprioritize inodegc */
22240b1de00SDarrick J. Wong struct shrinker m_inodegc_shrinker;
223f0f7a674SDarrick J. Wong /*
224f0f7a674SDarrick J. Wong * Workqueue item so that we can coalesce multiple inode flush attempts
225f0f7a674SDarrick J. Wong * into a single flush.
226f0f7a674SDarrick J. Wong */
227f0f7a674SDarrick J. Wong struct work_struct m_flush_inodes_work;
22852785112SChristoph Hellwig
22952785112SChristoph Hellwig /*
23052785112SChristoph Hellwig * Generation of the filesysyem layout. This is incremented by each
23152785112SChristoph Hellwig * growfs, and used by the pNFS server to ensure the client updates
23252785112SChristoph Hellwig * its view of the block device once it gets a layout that might
23352785112SChristoph Hellwig * reference the newly added blocks. Does not need to be persistent
23452785112SChristoph Hellwig * as long as we only allow file system size increments, but if we
23552785112SChristoph Hellwig * ever support shrinks it would have to be persisted in addition
23652785112SChristoph Hellwig * to various other kinds of pain inflicted on the pNFS server.
23752785112SChristoph Hellwig */
238c8ce540dSDarrick J. Wong uint32_t m_generation;
239b0dff466SDave Chinner struct mutex m_growlock; /* growfs mutex */
240801cc4e1SBrian Foster
241801cc4e1SBrian Foster #ifdef DEBUG
242801cc4e1SBrian Foster /*
24331965ef3SDarrick J. Wong * Frequency with which errors are injected. Replaces xfs_etest; the
24431965ef3SDarrick J. Wong * value stored in here is the inverse of the frequency with which the
24531965ef3SDarrick J. Wong * error triggers. 1 = always, 2 = half the time, etc.
24631965ef3SDarrick J. Wong */
24731965ef3SDarrick J. Wong unsigned int *m_errortag;
248c6840101SDarrick J. Wong struct xfs_kobj m_errortag_kobj;
249801cc4e1SBrian Foster #endif
25062334fabSDarrick J. Wong
25162334fabSDarrick J. Wong /* cpus that have inodes queued for inactivation */
25262334fabSDarrick J. Wong struct cpumask m_inodegc_cpumask;
2531da177e4SLinus Torvalds } xfs_mount_t;
2541da177e4SLinus Torvalds
255ef325959SDarrick J. Wong #define M_IGEO(mp) (&(mp)->m_ino_geo)
256ef325959SDarrick J. Wong
2571da177e4SLinus Torvalds /*
258a1d86e8dSDave Chinner * Flags for m_features.
259a1d86e8dSDave Chinner *
260a1d86e8dSDave Chinner * These are all the active features in the filesystem, regardless of how
261a1d86e8dSDave Chinner * they are configured.
262a1d86e8dSDave Chinner */
263a1d86e8dSDave Chinner #define XFS_FEAT_ATTR (1ULL << 0) /* xattrs present in fs */
264a1d86e8dSDave Chinner #define XFS_FEAT_NLINK (1ULL << 1) /* 32 bit link counts */
265a1d86e8dSDave Chinner #define XFS_FEAT_QUOTA (1ULL << 2) /* quota active */
266a1d86e8dSDave Chinner #define XFS_FEAT_ALIGN (1ULL << 3) /* inode alignment */
267a1d86e8dSDave Chinner #define XFS_FEAT_DALIGN (1ULL << 4) /* data alignment */
268a1d86e8dSDave Chinner #define XFS_FEAT_LOGV2 (1ULL << 5) /* version 2 logs */
269a1d86e8dSDave Chinner #define XFS_FEAT_SECTOR (1ULL << 6) /* sector size > 512 bytes */
270a1d86e8dSDave Chinner #define XFS_FEAT_EXTFLG (1ULL << 7) /* unwritten extents */
271a1d86e8dSDave Chinner #define XFS_FEAT_ASCIICI (1ULL << 8) /* ASCII only case-insens. */
272a1d86e8dSDave Chinner #define XFS_FEAT_LAZYSBCOUNT (1ULL << 9) /* Superblk counters */
273a1d86e8dSDave Chinner #define XFS_FEAT_ATTR2 (1ULL << 10) /* dynamic attr fork */
274a1d86e8dSDave Chinner #define XFS_FEAT_PARENT (1ULL << 11) /* parent pointers */
275a1d86e8dSDave Chinner #define XFS_FEAT_PROJID32 (1ULL << 12) /* 32 bit project id */
276a1d86e8dSDave Chinner #define XFS_FEAT_CRC (1ULL << 13) /* metadata CRCs */
277a1d86e8dSDave Chinner #define XFS_FEAT_V3INODES (1ULL << 14) /* Version 3 inodes */
278a1d86e8dSDave Chinner #define XFS_FEAT_PQUOTINO (1ULL << 15) /* non-shared proj/grp quotas */
279a1d86e8dSDave Chinner #define XFS_FEAT_FTYPE (1ULL << 16) /* inode type in dir */
280a1d86e8dSDave Chinner #define XFS_FEAT_FINOBT (1ULL << 17) /* free inode btree */
281a1d86e8dSDave Chinner #define XFS_FEAT_RMAPBT (1ULL << 18) /* reverse map btree */
282a1d86e8dSDave Chinner #define XFS_FEAT_REFLINK (1ULL << 19) /* reflinked files */
283a1d86e8dSDave Chinner #define XFS_FEAT_SPINODES (1ULL << 20) /* sparse inode chunks */
284a1d86e8dSDave Chinner #define XFS_FEAT_META_UUID (1ULL << 21) /* metadata UUID */
285a1d86e8dSDave Chinner #define XFS_FEAT_REALTIME (1ULL << 22) /* realtime device present */
286a1d86e8dSDave Chinner #define XFS_FEAT_INOBTCNT (1ULL << 23) /* inobt block counts */
287a1d86e8dSDave Chinner #define XFS_FEAT_BIGTIME (1ULL << 24) /* large timestamps */
288a1d86e8dSDave Chinner #define XFS_FEAT_NEEDSREPAIR (1ULL << 25) /* needs xfs_repair */
289919819f5SChandan Babu R #define XFS_FEAT_NREXT64 (1ULL << 26) /* large extent counters */
290a1d86e8dSDave Chinner
2918970a5b8SDave Chinner /* Mount features */
2928970a5b8SDave Chinner #define XFS_FEAT_NOATTR2 (1ULL << 48) /* disable attr2 creation */
2938970a5b8SDave Chinner #define XFS_FEAT_NOALIGN (1ULL << 49) /* ignore alignment */
2948970a5b8SDave Chinner #define XFS_FEAT_ALLOCSIZE (1ULL << 50) /* user specified allocation size */
2958970a5b8SDave Chinner #define XFS_FEAT_LARGE_IOSIZE (1ULL << 51) /* report large preferred
2968970a5b8SDave Chinner * I/O size in stat() */
2978970a5b8SDave Chinner #define XFS_FEAT_WSYNC (1ULL << 52) /* synchronous metadata ops */
2988970a5b8SDave Chinner #define XFS_FEAT_DIRSYNC (1ULL << 53) /* synchronous directory ops */
2998970a5b8SDave Chinner #define XFS_FEAT_DISCARD (1ULL << 54) /* discard unused blocks */
3008970a5b8SDave Chinner #define XFS_FEAT_GRPID (1ULL << 55) /* group-ID assigned from directory */
3018970a5b8SDave Chinner #define XFS_FEAT_SMALL_INUMS (1ULL << 56) /* user wants 32bit inodes */
3028970a5b8SDave Chinner #define XFS_FEAT_IKEEP (1ULL << 57) /* keep empty inode clusters*/
3038970a5b8SDave Chinner #define XFS_FEAT_SWALLOC (1ULL << 58) /* stripe width allocation */
3048970a5b8SDave Chinner #define XFS_FEAT_FILESTREAMS (1ULL << 59) /* use filestreams allocator */
3058970a5b8SDave Chinner #define XFS_FEAT_DAX_ALWAYS (1ULL << 60) /* DAX always enabled */
3068970a5b8SDave Chinner #define XFS_FEAT_DAX_NEVER (1ULL << 61) /* DAX never enabled */
3078970a5b8SDave Chinner #define XFS_FEAT_NORECOVERY (1ULL << 62) /* no recovery - dirty fs */
3088970a5b8SDave Chinner #define XFS_FEAT_NOUUID (1ULL << 63) /* ignore uuid during mount */
3098970a5b8SDave Chinner
310a1d86e8dSDave Chinner #define __XFS_HAS_FEAT(name, NAME) \
311a1d86e8dSDave Chinner static inline bool xfs_has_ ## name (struct xfs_mount *mp) \
312a1d86e8dSDave Chinner { \
313a1d86e8dSDave Chinner return mp->m_features & XFS_FEAT_ ## NAME; \
314a1d86e8dSDave Chinner }
315a1d86e8dSDave Chinner
316a1d86e8dSDave Chinner /* Some features can be added dynamically so they need a set wrapper, too. */
317a1d86e8dSDave Chinner #define __XFS_ADD_FEAT(name, NAME) \
318a1d86e8dSDave Chinner __XFS_HAS_FEAT(name, NAME); \
319a1d86e8dSDave Chinner static inline void xfs_add_ ## name (struct xfs_mount *mp) \
320a1d86e8dSDave Chinner { \
321a1d86e8dSDave Chinner mp->m_features |= XFS_FEAT_ ## NAME; \
322a1d86e8dSDave Chinner xfs_sb_version_add ## name(&mp->m_sb); \
323a1d86e8dSDave Chinner }
324a1d86e8dSDave Chinner
3258970a5b8SDave Chinner /* Superblock features */
__XFS_ADD_FEAT(attr,ATTR)326a1d86e8dSDave Chinner __XFS_ADD_FEAT(attr, ATTR)
327a1d86e8dSDave Chinner __XFS_HAS_FEAT(nlink, NLINK)
328a1d86e8dSDave Chinner __XFS_ADD_FEAT(quota, QUOTA)
329a1d86e8dSDave Chinner __XFS_HAS_FEAT(align, ALIGN)
330a1d86e8dSDave Chinner __XFS_HAS_FEAT(dalign, DALIGN)
331a1d86e8dSDave Chinner __XFS_HAS_FEAT(logv2, LOGV2)
332a1d86e8dSDave Chinner __XFS_HAS_FEAT(sector, SECTOR)
333a1d86e8dSDave Chinner __XFS_HAS_FEAT(extflg, EXTFLG)
334a1d86e8dSDave Chinner __XFS_HAS_FEAT(asciici, ASCIICI)
335a1d86e8dSDave Chinner __XFS_HAS_FEAT(lazysbcount, LAZYSBCOUNT)
336a1d86e8dSDave Chinner __XFS_ADD_FEAT(attr2, ATTR2)
337a1d86e8dSDave Chinner __XFS_HAS_FEAT(parent, PARENT)
338a1d86e8dSDave Chinner __XFS_ADD_FEAT(projid32, PROJID32)
339a1d86e8dSDave Chinner __XFS_HAS_FEAT(crc, CRC)
340a1d86e8dSDave Chinner __XFS_HAS_FEAT(v3inodes, V3INODES)
341a1d86e8dSDave Chinner __XFS_HAS_FEAT(pquotino, PQUOTINO)
342a1d86e8dSDave Chinner __XFS_HAS_FEAT(ftype, FTYPE)
343a1d86e8dSDave Chinner __XFS_HAS_FEAT(finobt, FINOBT)
344a1d86e8dSDave Chinner __XFS_HAS_FEAT(rmapbt, RMAPBT)
345a1d86e8dSDave Chinner __XFS_HAS_FEAT(reflink, REFLINK)
346a1d86e8dSDave Chinner __XFS_HAS_FEAT(sparseinodes, SPINODES)
347a1d86e8dSDave Chinner __XFS_HAS_FEAT(metauuid, META_UUID)
348a1d86e8dSDave Chinner __XFS_HAS_FEAT(realtime, REALTIME)
34938c26bfdSDave Chinner __XFS_HAS_FEAT(inobtcounts, INOBTCNT)
35038c26bfdSDave Chinner __XFS_HAS_FEAT(bigtime, BIGTIME)
35138c26bfdSDave Chinner __XFS_HAS_FEAT(needsrepair, NEEDSREPAIR)
352919819f5SChandan Babu R __XFS_HAS_FEAT(large_extent_counts, NREXT64)
353a1d86e8dSDave Chinner
354a1d86e8dSDave Chinner /*
3558970a5b8SDave Chinner * Mount features
3568970a5b8SDave Chinner *
3572e973b2cSDave Chinner * These do not change dynamically - features that can come and go, such as 32
3582e973b2cSDave Chinner * bit inodes and read-only state, are kept as operational state rather than
3598970a5b8SDave Chinner * features.
3608970a5b8SDave Chinner */
3618970a5b8SDave Chinner __XFS_HAS_FEAT(noattr2, NOATTR2)
3628970a5b8SDave Chinner __XFS_HAS_FEAT(noalign, NOALIGN)
3638970a5b8SDave Chinner __XFS_HAS_FEAT(allocsize, ALLOCSIZE)
3648970a5b8SDave Chinner __XFS_HAS_FEAT(large_iosize, LARGE_IOSIZE)
3658970a5b8SDave Chinner __XFS_HAS_FEAT(wsync, WSYNC)
3668970a5b8SDave Chinner __XFS_HAS_FEAT(dirsync, DIRSYNC)
3678970a5b8SDave Chinner __XFS_HAS_FEAT(discard, DISCARD)
3688970a5b8SDave Chinner __XFS_HAS_FEAT(grpid, GRPID)
3698970a5b8SDave Chinner __XFS_HAS_FEAT(small_inums, SMALL_INUMS)
3708970a5b8SDave Chinner __XFS_HAS_FEAT(ikeep, IKEEP)
3718970a5b8SDave Chinner __XFS_HAS_FEAT(swalloc, SWALLOC)
3728970a5b8SDave Chinner __XFS_HAS_FEAT(filestreams, FILESTREAMS)
3738970a5b8SDave Chinner __XFS_HAS_FEAT(dax_always, DAX_ALWAYS)
3748970a5b8SDave Chinner __XFS_HAS_FEAT(dax_never, DAX_NEVER)
3758970a5b8SDave Chinner __XFS_HAS_FEAT(norecovery, NORECOVERY)
3768970a5b8SDave Chinner __XFS_HAS_FEAT(nouuid, NOUUID)
3778970a5b8SDave Chinner
3788970a5b8SDave Chinner /*
3792e973b2cSDave Chinner * Operational mount state flags
3802e973b2cSDave Chinner *
3812e973b2cSDave Chinner * Use these with atomic bit ops only!
3821da177e4SLinus Torvalds */
3832e973b2cSDave Chinner #define XFS_OPSTATE_UNMOUNTING 0 /* filesystem is unmounting */
3842e973b2cSDave Chinner #define XFS_OPSTATE_CLEAN 1 /* mount was clean */
3852e973b2cSDave Chinner #define XFS_OPSTATE_SHUTDOWN 2 /* stop all fs operations */
3862e973b2cSDave Chinner #define XFS_OPSTATE_INODE32 3 /* inode32 allocator active */
3872e973b2cSDave Chinner #define XFS_OPSTATE_READONLY 4 /* read-only fs */
388cbe4dab1SDave Chinner
3891da177e4SLinus Torvalds /*
390ab23a776SDave Chinner * If set, inactivation worker threads will be scheduled to process queued
391ab23a776SDave Chinner * inodegc work. If not, queued inodes remain in memory waiting to be
392ab23a776SDave Chinner * processed.
393ab23a776SDave Chinner */
3942e973b2cSDave Chinner #define XFS_OPSTATE_INODEGC_ENABLED 5
3956f649091SDarrick J. Wong /*
3966f649091SDarrick J. Wong * If set, background speculative prealloc gc worker threads will be scheduled
3976f649091SDarrick J. Wong * to process queued blockgc work. If not, inodes retain their preallocations
3986f649091SDarrick J. Wong * until explicitly deleted.
3996f649091SDarrick J. Wong */
4002e973b2cSDave Chinner #define XFS_OPSTATE_BLOCKGC_ENABLED 6
401ab23a776SDave Chinner
402df5660cfSDarrick J. Wong /* Kernel has logged a warning about online fsck being used on this fs. */
403df5660cfSDarrick J. Wong #define XFS_OPSTATE_WARNED_SCRUB 7
404df5660cfSDarrick J. Wong /* Kernel has logged a warning about shrink being used on this fs. */
405df5660cfSDarrick J. Wong #define XFS_OPSTATE_WARNED_SHRINK 8
406202865ccSDarrick J. Wong /* Kernel has logged a warning about logged xattr updates being used. */
407202865ccSDarrick J. Wong #define XFS_OPSTATE_WARNED_LARP 9
408*49813a21SDarrick J. Wong /* Mount time quotacheck is running */
409*49813a21SDarrick J. Wong #define XFS_OPSTATE_QUOTACHECK_RUNNING 10
410df5660cfSDarrick J. Wong
411ab23a776SDave Chinner #define __XFS_IS_OPSTATE(name, NAME) \
412ab23a776SDave Chinner static inline bool xfs_is_ ## name (struct xfs_mount *mp) \
413ab23a776SDave Chinner { \
414ab23a776SDave Chinner return test_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \
415ab23a776SDave Chinner } \
416ab23a776SDave Chinner static inline bool xfs_clear_ ## name (struct xfs_mount *mp) \
417ab23a776SDave Chinner { \
418ab23a776SDave Chinner return test_and_clear_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \
419ab23a776SDave Chinner } \
420ab23a776SDave Chinner static inline bool xfs_set_ ## name (struct xfs_mount *mp) \
421ab23a776SDave Chinner { \
422ab23a776SDave Chinner return test_and_set_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \
423ab23a776SDave Chinner }
424ab23a776SDave Chinner
4252e973b2cSDave Chinner __XFS_IS_OPSTATE(unmounting, UNMOUNTING)
4262e973b2cSDave Chinner __XFS_IS_OPSTATE(clean, CLEAN)
4272e973b2cSDave Chinner __XFS_IS_OPSTATE(shutdown, SHUTDOWN)
4282e973b2cSDave Chinner __XFS_IS_OPSTATE(inode32, INODE32)
4292e973b2cSDave Chinner __XFS_IS_OPSTATE(readonly, READONLY)
430ab23a776SDave Chinner __XFS_IS_OPSTATE(inodegc_enabled, INODEGC_ENABLED)
4316f649091SDarrick J. Wong __XFS_IS_OPSTATE(blockgc_enabled, BLOCKGC_ENABLED)
432*49813a21SDarrick J. Wong #ifdef CONFIG_XFS_QUOTA
433*49813a21SDarrick J. Wong __XFS_IS_OPSTATE(quotacheck_running, QUOTACHECK_RUNNING)
434*49813a21SDarrick J. Wong #else
435*49813a21SDarrick J. Wong # define xfs_is_quotacheck_running(mp) (false)
436*49813a21SDarrick J. Wong #endif
437ab23a776SDave Chinner
438df5660cfSDarrick J. Wong static inline bool
439df5660cfSDarrick J. Wong xfs_should_warn(struct xfs_mount *mp, long nr)
440df5660cfSDarrick J. Wong {
441df5660cfSDarrick J. Wong return !test_and_set_bit(nr, &mp->m_opstate);
442df5660cfSDarrick J. Wong }
443df5660cfSDarrick J. Wong
444ab23a776SDave Chinner #define XFS_OPSTATE_STRINGS \
4452e973b2cSDave Chinner { (1UL << XFS_OPSTATE_UNMOUNTING), "unmounting" }, \
4462e973b2cSDave Chinner { (1UL << XFS_OPSTATE_CLEAN), "clean" }, \
4472e973b2cSDave Chinner { (1UL << XFS_OPSTATE_SHUTDOWN), "shutdown" }, \
4482e973b2cSDave Chinner { (1UL << XFS_OPSTATE_INODE32), "inode32" }, \
4492e973b2cSDave Chinner { (1UL << XFS_OPSTATE_READONLY), "read_only" }, \
4506f649091SDarrick J. Wong { (1UL << XFS_OPSTATE_INODEGC_ENABLED), "inodegc" }, \
451df5660cfSDarrick J. Wong { (1UL << XFS_OPSTATE_BLOCKGC_ENABLED), "blockgc" }, \
452df5660cfSDarrick J. Wong { (1UL << XFS_OPSTATE_WARNED_SCRUB), "wscrub" }, \
453202865ccSDarrick J. Wong { (1UL << XFS_OPSTATE_WARNED_SHRINK), "wshrink" }, \
454*49813a21SDarrick J. Wong { (1UL << XFS_OPSTATE_WARNED_LARP), "wlarp" }, \
455*49813a21SDarrick J. Wong { (1UL << XFS_OPSTATE_QUOTACHECK_RUNNING), "quotacheck" }
456ab23a776SDave Chinner
457ab23a776SDave Chinner /*
4581f443ad7SNathan Scott * Max and min values for mount-option defined I/O
4591f443ad7SNathan Scott * preallocation sizes.
4601da177e4SLinus Torvalds */
4611f443ad7SNathan Scott #define XFS_MAX_IO_LOG 30 /* 1G */
4621da177e4SLinus Torvalds #define XFS_MIN_IO_LOG PAGE_SHIFT
4631da177e4SLinus Torvalds
4642eb7550dSDave Chinner void xfs_do_force_shutdown(struct xfs_mount *mp, uint32_t flags, char *fname,
465745f6919SChristoph Hellwig int lnnum);
4661da177e4SLinus Torvalds #define xfs_force_shutdown(m,f) \
467745f6919SChristoph Hellwig xfs_do_force_shutdown(m, f, __FILE__, __LINE__)
4681da177e4SLinus Torvalds
4692eb7550dSDave Chinner #define SHUTDOWN_META_IO_ERROR (1u << 0) /* write attempt to metadata failed */
4702eb7550dSDave Chinner #define SHUTDOWN_LOG_IO_ERROR (1u << 1) /* write attempt to the log failed */
4712eb7550dSDave Chinner #define SHUTDOWN_FORCE_UMOUNT (1u << 2) /* shutdown from a forced unmount */
4722eb7550dSDave Chinner #define SHUTDOWN_CORRUPT_INCORE (1u << 3) /* corrupt in-memory structures */
4736f643c57SShiyang Ruan #define SHUTDOWN_CORRUPT_ONDISK (1u << 4) /* corrupt metadata on device */
474e7caa877SChristoph Hellwig #define SHUTDOWN_DEVICE_REMOVED (1u << 5) /* device removed underneath us */
4752b5decd0SChristoph Hellwig
4767f89c838SDarrick J. Wong #define XFS_SHUTDOWN_STRINGS \
4777f89c838SDarrick J. Wong { SHUTDOWN_META_IO_ERROR, "metadata_io" }, \
4787f89c838SDarrick J. Wong { SHUTDOWN_LOG_IO_ERROR, "log_io" }, \
4797f89c838SDarrick J. Wong { SHUTDOWN_FORCE_UMOUNT, "force_umount" }, \
480e7caa877SChristoph Hellwig { SHUTDOWN_CORRUPT_INCORE, "corruption" }, \
481e7caa877SChristoph Hellwig { SHUTDOWN_DEVICE_REMOVED, "device_removed" }
4827f89c838SDarrick J. Wong
4831da177e4SLinus Torvalds /*
4841da177e4SLinus Torvalds * Flags for xfs_mountfs
4851da177e4SLinus Torvalds */
486764d1f89SNathan Scott #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */
4871da177e4SLinus Torvalds
488a844f451SNathan Scott static inline xfs_agnumber_t
xfs_daddr_to_agno(struct xfs_mount * mp,xfs_daddr_t d)489a844f451SNathan Scott xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d)
4901da177e4SLinus Torvalds {
4914f1adf33SEric Sandeen xfs_rfsblock_t ld = XFS_BB_TO_FSBT(mp, d);
492a844f451SNathan Scott do_div(ld, mp->m_sb.sb_agblocks);
493a844f451SNathan Scott return (xfs_agnumber_t) ld;
4941da177e4SLinus Torvalds }
4951da177e4SLinus Torvalds
496a844f451SNathan Scott static inline xfs_agblock_t
xfs_daddr_to_agbno(struct xfs_mount * mp,xfs_daddr_t d)497a844f451SNathan Scott xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d)
4981da177e4SLinus Torvalds {
4994f1adf33SEric Sandeen xfs_rfsblock_t ld = XFS_BB_TO_FSBT(mp, d);
500a844f451SNathan Scott return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks);
5011da177e4SLinus Torvalds }
5021da177e4SLinus Torvalds
50307b6403aSDave Chinner int xfs_buf_hash_init(struct xfs_perag *pag);
50407b6403aSDave Chinner void xfs_buf_hash_destroy(struct xfs_perag *pag);
5056031e73aSLucas Stach
506af3b6382SDarrick J. Wong extern void xfs_uuid_table_free(void);
507c8ce540dSDarrick J. Wong extern uint64_t xfs_default_resblks(xfs_mount_t *mp);
5084249023aSChristoph Hellwig extern int xfs_mountfs(xfs_mount_t *mp);
50941b5c2e7SChristoph Hellwig extern void xfs_unmountfs(xfs_mount_t *);
510964aa8d9SDave Chinner
5117d6f07d2SDarrick J. Wong /*
5127d6f07d2SDarrick J. Wong * Deltas for the block count can vary from 1 to very large, but lock contention
5137d6f07d2SDarrick J. Wong * only occurs on frequent small block count updates such as in the delayed
5147d6f07d2SDarrick J. Wong * allocation path for buffered writes (page a time updates). Hence we set
5157d6f07d2SDarrick J. Wong * a large batch count (1024) to minimise global counter updates except when
5167d6f07d2SDarrick J. Wong * we get near to ENOSPC and we have to be very accurate with our updates.
5177d6f07d2SDarrick J. Wong */
5187d6f07d2SDarrick J. Wong #define XFS_FDBLOCKS_BATCH 1024
5197d6f07d2SDarrick J. Wong
520c8c56825SDarrick J. Wong /*
521c8c56825SDarrick J. Wong * Estimate the amount of free space that is not available to userspace and is
522c8c56825SDarrick J. Wong * not explicitly reserved from the incore fdblocks. This includes:
523c8c56825SDarrick J. Wong *
524c8c56825SDarrick J. Wong * - The minimum number of blocks needed to support splitting a bmap btree
525c8c56825SDarrick J. Wong * - The blocks currently in use by the freespace btrees because they record
526c8c56825SDarrick J. Wong * the actual blocks that will fill per-AG metadata space reservations
527c8c56825SDarrick J. Wong */
528c8c56825SDarrick J. Wong static inline uint64_t
xfs_fdblocks_unavailable(struct xfs_mount * mp)529c8c56825SDarrick J. Wong xfs_fdblocks_unavailable(
530c8c56825SDarrick J. Wong struct xfs_mount *mp)
531c8c56825SDarrick J. Wong {
532c8c56825SDarrick J. Wong return mp->m_alloc_set_aside + atomic64_read(&mp->m_allocbt_blks);
533c8c56825SDarrick J. Wong }
534c8c56825SDarrick J. Wong
5352229276cSDarrick J. Wong int xfs_mod_freecounter(struct xfs_mount *mp, struct percpu_counter *counter,
5362229276cSDarrick J. Wong int64_t delta, bool rsvd);
5372229276cSDarrick J. Wong
5382229276cSDarrick J. Wong static inline int
xfs_mod_fdblocks(struct xfs_mount * mp,int64_t delta,bool reserved)5392229276cSDarrick J. Wong xfs_mod_fdblocks(struct xfs_mount *mp, int64_t delta, bool reserved)
5402229276cSDarrick J. Wong {
5412229276cSDarrick J. Wong return xfs_mod_freecounter(mp, &mp->m_fdblocks, delta, reserved);
5422229276cSDarrick J. Wong }
5432229276cSDarrick J. Wong
5442229276cSDarrick J. Wong static inline int
xfs_mod_frextents(struct xfs_mount * mp,int64_t delta)5452229276cSDarrick J. Wong xfs_mod_frextents(struct xfs_mount *mp, int64_t delta)
5462229276cSDarrick J. Wong {
5472229276cSDarrick J. Wong return xfs_mod_freecounter(mp, &mp->m_frextents, delta, false);
5482229276cSDarrick J. Wong }
549bab98bbeSDave Chinner
550764d1f89SNathan Scott extern int xfs_readsb(xfs_mount_t *, int);
5511da177e4SLinus Torvalds extern void xfs_freesb(xfs_mount_t *);
55291ee575fSBrian Foster extern bool xfs_fs_writable(struct xfs_mount *mp, int level);
553c8ce540dSDarrick J. Wong extern int xfs_sb_validate_fsb_count(struct xfs_sb *, uint64_t);
5541da177e4SLinus Torvalds
555d7658d48SChristoph Hellwig extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
556d7658d48SChristoph Hellwig
557055388a3SDave Chinner extern void xfs_set_low_space_thresholds(struct xfs_mount *);
558055388a3SDave Chinner
5593fbbbea3SDave Chinner int xfs_zero_extent(struct xfs_inode *ip, xfs_fsblock_t start_fsb,
5603fbbbea3SDave Chinner xfs_off_t count_fsb);
5613fbbbea3SDave Chinner
562df309390SCarlos Maiolino struct xfs_error_cfg * xfs_error_get_cfg(struct xfs_mount *mp,
563df309390SCarlos Maiolino int error_class, int error);
564f467cad9SDarrick J. Wong void xfs_force_summary_recalc(struct xfs_mount *mp);
565908ce71eSDarrick J. Wong int xfs_add_incompat_log_feature(struct xfs_mount *mp, uint32_t feature);
566908ce71eSDarrick J. Wong bool xfs_clear_incompat_log_features(struct xfs_mount *mp);
5679fe82b8cSDarrick J. Wong void xfs_mod_delalloc(struct xfs_mount *mp, int64_t delta);
568df309390SCarlos Maiolino
5691da177e4SLinus Torvalds #endif /* __XFS_MOUNT_H__ */
570