^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2000-2005 Silicon Graphics, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef __XFS_MOUNT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define __XFS_MOUNT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) struct xlog;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) struct xfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) struct xfs_mru_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct xfs_ail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) struct xfs_quotainfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) struct xfs_da_geometry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /* dynamic preallocation free space thresholds, 5% down to 1% */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) XFS_LOWSP_1_PCNT = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) XFS_LOWSP_2_PCNT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) XFS_LOWSP_3_PCNT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) XFS_LOWSP_4_PCNT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) XFS_LOWSP_5_PCNT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) XFS_LOWSP_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * Error Configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * Error classes define the subsystem the configuration belongs to.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * Error numbers define the errors that are configurable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) XFS_ERR_METADATA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) XFS_ERR_CLASS_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) XFS_ERR_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) XFS_ERR_EIO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) XFS_ERR_ENOSPC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) XFS_ERR_ENODEV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) XFS_ERR_ERRNO_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define XFS_ERR_RETRY_FOREVER -1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * Although retry_timeout is in jiffies which is normally an unsigned long,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * we limit the retry timeout to 86400 seconds, or one day. So even a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * signed 32-bit long is sufficient for a HZ value up to 24855. Making it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * signed lets us store the special "-1" value, meaning retry forever.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct xfs_error_cfg {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct xfs_kobj kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) int max_retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) long retry_timeout; /* in jiffies, -1 = infinite */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * The struct xfsmount layout is optimised to separate read-mostly variables
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * from variables that are frequently modified. We put the read-mostly variables
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * first, then place all the other variables at the end.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * Typically, read-mostly variables are those that are set at mount time and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * never changed again, or only change rarely as a result of things like sysfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * knobs being tweaked.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) typedef struct xfs_mount {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct xfs_sb m_sb; /* copy of fs superblock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct super_block *m_super;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct xfs_ail *m_ail; /* fs active log item list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct xfs_buf *m_sb_bp; /* buffer for superblock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) char *m_rtname; /* realtime device name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) char *m_logname; /* external log device name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) struct xfs_da_geometry *m_dir_geo; /* directory block geometry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct xfs_da_geometry *m_attr_geo; /* attribute block geometry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct xlog *m_log; /* log specific stuff */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct xfs_inode *m_rbmip; /* pointer to bitmap inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct xfs_inode *m_rsumip; /* pointer to summary inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct xfs_inode *m_rootip; /* pointer to root directory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct xfs_quotainfo *m_quotainfo; /* disk quota information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) xfs_buftarg_t *m_ddev_targp; /* saves taking the address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) xfs_buftarg_t *m_logdev_targp;/* ptr to log device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * Optional cache of rt summary level per bitmap block with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * invariant that m_rsum_cache[bbno] <= the minimum i for which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * rsum[i][bbno] != 0. Reads and writes are serialized by the rsumip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * inode lock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) uint8_t *m_rsum_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct xfs_mru_cache *m_filestream; /* per-mount filestream data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct workqueue_struct *m_buf_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct workqueue_struct *m_unwritten_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct workqueue_struct *m_cil_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct workqueue_struct *m_reclaim_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct workqueue_struct *m_eofblocks_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct workqueue_struct *m_sync_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) int m_bsize; /* fs logical block size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) uint8_t m_blkbit_log; /* blocklog + NBBY */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) uint8_t m_blkbb_log; /* blocklog - BBSHIFT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) uint8_t m_agno_log; /* log #ag's */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) uint m_blockmask; /* sb_blocksize-1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) uint m_blockwsize; /* sb_blocksize in words */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) uint m_blockwmask; /* blockwsize-1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) uint m_alloc_mxr[2]; /* max alloc btree records */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) uint m_alloc_mnr[2]; /* min alloc btree records */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) uint m_bmap_dmxr[2]; /* max bmap btree records */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) uint m_bmap_dmnr[2]; /* min bmap btree records */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) uint m_rmap_mxr[2]; /* max rmap btree records */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) uint m_rmap_mnr[2]; /* min rmap btree records */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) uint m_refc_mxr[2]; /* max refc btree records */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) uint m_refc_mnr[2]; /* min refc btree records */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) uint m_rmap_maxlevels; /* max rmap btree levels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) uint m_refc_maxlevels; /* max refcount btree level */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) xfs_extlen_t m_ag_prealloc_blocks; /* reserved ag blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) uint m_alloc_set_aside; /* space we can't use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) uint m_ag_max_usable; /* max space per AG */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) int m_dalign; /* stripe unit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) int m_swidth; /* stripe width */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) xfs_agnumber_t m_maxagi; /* highest inode alloc group */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) uint m_allocsize_log;/* min write size log bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) uint m_allocsize_blocks; /* min write size blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) int m_logbufs; /* number of log buffers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) int m_logbsize; /* size of each log buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) uint m_rsumlevels; /* rt summary levels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) uint m_rsumsize; /* size of rt summary, bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) int m_fixedfsid[2]; /* unchanged for life of FS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) uint m_qflags; /* quota status flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) uint64_t m_flags; /* global mount flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) int64_t m_low_space[XFS_LOWSP_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct xfs_ino_geometry m_ino_geo; /* inode geometry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct xfs_trans_resv m_resv; /* precomputed res values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /* low free space thresholds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) bool m_always_cow;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) bool m_fail_unmount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) bool m_finobt_nores; /* no per-AG finobt resv. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) bool m_update_sb; /* sb needs update in mount */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * Bitsets of per-fs metadata that have been checked and/or are sick.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * Callers must hold m_sb_lock to access these two fields.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) uint8_t m_fs_checked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) uint8_t m_fs_sick;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * Bitsets of rt metadata that have been checked and/or are sick.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * Callers must hold m_sb_lock to access this field.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) uint8_t m_rt_checked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) uint8_t m_rt_sick;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * End of read-mostly variables. Frequently written variables and locks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) * should be placed below this comment from now on. The first variable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) * here is marked as cacheline aligned so they it is separated from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) * the read-mostly variables.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) spinlock_t ____cacheline_aligned m_sb_lock; /* sb counter lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct percpu_counter m_icount; /* allocated inodes counter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) struct percpu_counter m_ifree; /* free inodes counter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct percpu_counter m_fdblocks; /* free block counter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) * Count of data device blocks reserved for delayed allocations,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * including indlen blocks. Does not include allocated CoW staging
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * extents or anything related to the rt device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) struct percpu_counter m_delalloc_blks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct radix_tree_root m_perag_tree; /* per-ag accounting info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) spinlock_t m_perag_lock; /* lock for m_perag_tree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) uint64_t m_resblks; /* total reserved blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) uint64_t m_resblks_avail;/* available reserved blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) uint64_t m_resblks_save; /* reserved blks @ remount,ro */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct delayed_work m_reclaim_work; /* background inode reclaim */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct delayed_work m_eofblocks_work; /* background eof blocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) trimming */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) struct delayed_work m_cowblocks_work; /* background cow blocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) trimming */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct xfs_kobj m_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct xfs_kobj m_error_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct xfs_kobj m_error_meta_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) struct xfs_error_cfg m_error_cfg[XFS_ERR_CLASS_MAX][XFS_ERR_ERRNO_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct xstats m_stats; /* per-fs stats */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) xfs_agnumber_t m_agfrotor; /* last ag where space found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) spinlock_t m_agirotor_lock;/* .. and lock protecting it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * Workqueue item so that we can coalesce multiple inode flush attempts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * into a single flush.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) struct work_struct m_flush_inodes_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) * Generation of the filesysyem layout. This is incremented by each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * growfs, and used by the pNFS server to ensure the client updates
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * its view of the block device once it gets a layout that might
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * reference the newly added blocks. Does not need to be persistent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) * as long as we only allow file system size increments, but if we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) * ever support shrinks it would have to be persisted in addition
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * to various other kinds of pain inflicted on the pNFS server.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) uint32_t m_generation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct mutex m_growlock; /* growfs mutex */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) #ifdef DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * Frequency with which errors are injected. Replaces xfs_etest; the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) * value stored in here is the inverse of the frequency with which the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) * error triggers. 1 = always, 2 = half the time, etc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) unsigned int *m_errortag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) struct xfs_kobj m_errortag_kobj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) } xfs_mount_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #define M_IGEO(mp) (&(mp)->m_ino_geo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * Flags for m_flags.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) must be synchronous except
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) for space allocations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) #define XFS_MOUNT_UNMOUNTING (1ULL << 1) /* filesystem is unmounting */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) #define XFS_MOUNT_WAS_CLEAN (1ULL << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) operations, typically for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) disk errors in metadata */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) #define XFS_MOUNT_DISCARD (1ULL << 5) /* discard unused blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) #define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) allocations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) #define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) #define XFS_MOUNT_GRPID (1ULL << 9) /* group-ID assigned from directory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) #define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) #define XFS_MOUNT_ALLOCSIZE (1ULL << 12) /* specified allocation size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) #define XFS_MOUNT_SMALL_INUMS (1ULL << 14) /* user wants 32bit inodes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) #define XFS_MOUNT_32BITINODES (1ULL << 15) /* inode32 allocator active */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) #define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) #define XFS_MOUNT_IKEEP (1ULL << 18) /* keep empty inode clusters*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) #define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) * allocation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) #define XFS_MOUNT_RDONLY (1ULL << 20) /* read-only fs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) #define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) #define XFS_MOUNT_LARGEIO (1ULL << 22) /* report large preferred
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) * I/O size in stat() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) #define XFS_MOUNT_FILESTREAMS (1ULL << 24) /* enable the filestreams
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) allocator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) #define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) #define XFS_MOUNT_DAX_ALWAYS (1ULL << 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) #define XFS_MOUNT_DAX_NEVER (1ULL << 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) * Max and min values for mount-option defined I/O
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * preallocation sizes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) #define XFS_MAX_IO_LOG 30 /* 1G */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) #define XFS_MIN_IO_LOG PAGE_SHIFT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) #define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) #define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) int lnnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #define xfs_force_shutdown(m,f) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) xfs_do_force_shutdown(m, f, __FILE__, __LINE__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) #define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) #define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) #define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) #define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * Flags for xfs_mountfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) #define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) static inline xfs_agnumber_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) xfs_rfsblock_t ld = XFS_BB_TO_FSBT(mp, d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) do_div(ld, mp->m_sb.sb_agblocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) return (xfs_agnumber_t) ld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) static inline xfs_agblock_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) xfs_rfsblock_t ld = XFS_BB_TO_FSBT(mp, d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /* per-AG block reservation data structures*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) struct xfs_ag_resv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) /* number of blocks originally reserved here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) xfs_extlen_t ar_orig_reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) /* number of blocks reserved here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) xfs_extlen_t ar_reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) /* number of blocks originally asked for */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) xfs_extlen_t ar_asked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * Per-ag incore structure, copies of information in agf and agi, to improve the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * performance of allocation group selection.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) typedef struct xfs_perag {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct xfs_mount *pag_mount; /* owner filesystem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) xfs_agnumber_t pag_agno; /* AG this structure belongs to */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) atomic_t pag_ref; /* perag reference count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) char pagf_init; /* this agf's entry is initialized */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) char pagi_init; /* this agi's entry is initialized */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) char pagf_metadata; /* the agf is preferred to be metadata */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) char pagi_inodeok; /* The agi is ok for inodes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) uint8_t pagf_levels[XFS_BTNUM_AGF];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) /* # of levels in bno & cnt btree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) bool pagf_agflreset; /* agfl requires reset before use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) uint32_t pagf_flcount; /* count of blocks in freelist */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) xfs_extlen_t pagf_freeblks; /* total free blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) xfs_extlen_t pagf_longest; /* longest free space */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) uint32_t pagf_btreeblks; /* # of blocks held in AGF btrees */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) xfs_agino_t pagi_freecount; /* number of free inodes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) xfs_agino_t pagi_count; /* number of allocated inodes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) * Inode allocation search lookup optimisation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) * If the pagino matches, the search for new inodes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) * doesn't need to search the near ones again straight away
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) xfs_agino_t pagl_pagino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) xfs_agino_t pagl_leftrec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) xfs_agino_t pagl_rightrec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) * Bitsets of per-ag metadata that have been checked and/or are sick.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) * Callers should hold pag_state_lock before accessing this field.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) uint16_t pag_checked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) uint16_t pag_sick;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) spinlock_t pag_state_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) spinlock_t pagb_lock; /* lock for pagb_tree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) struct rb_root pagb_tree; /* ordered tree of busy extents */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) unsigned int pagb_gen; /* generation count for pagb_tree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) wait_queue_head_t pagb_wait; /* woken when pagb_gen changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) atomic_t pagf_fstrms; /* # of filestreams active in this AG */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) spinlock_t pag_ici_lock; /* incore inode cache lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) struct radix_tree_root pag_ici_root; /* incore inode cache root */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) int pag_ici_reclaimable; /* reclaimable inodes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) unsigned long pag_ici_reclaim_cursor; /* reclaim restart point */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) /* buffer cache index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) spinlock_t pag_buf_lock; /* lock for pag_buf_hash */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct rhashtable pag_buf_hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) /* for rcu-safe freeing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct rcu_head rcu_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) int pagb_count; /* pagb slots in use */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) /* Blocks reserved for all kinds of metadata. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) struct xfs_ag_resv pag_meta_resv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) /* Blocks reserved for the reverse mapping btree. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) struct xfs_ag_resv pag_rmapbt_resv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) /* reference count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) uint8_t pagf_refcount_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) * Unlinked inode information. This incore information reflects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * data stored in the AGI, so callers must hold the AGI buffer lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) * or have some other means to control concurrency.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) struct rhashtable pagi_unlinked_hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) } xfs_perag_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) static inline struct xfs_ag_resv *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) xfs_perag_resv(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct xfs_perag *pag,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) enum xfs_ag_resv_type type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) case XFS_AG_RESV_METADATA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) return &pag->pag_meta_resv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) case XFS_AG_RESV_RMAPBT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) return &pag->pag_rmapbt_resv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) int xfs_buf_hash_init(xfs_perag_t *pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) void xfs_buf_hash_destroy(xfs_perag_t *pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) extern void xfs_uuid_table_free(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) extern int xfs_log_sbcount(xfs_mount_t *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) extern uint64_t xfs_default_resblks(xfs_mount_t *mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) extern int xfs_mountfs(xfs_mount_t *mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) extern int xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) xfs_agnumber_t *maxagi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) extern void xfs_unmountfs(xfs_mount_t *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) extern int xfs_mod_fdblocks(struct xfs_mount *mp, int64_t delta,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) bool reserved);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) extern int xfs_mod_frextents(struct xfs_mount *mp, int64_t delta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) extern int xfs_readsb(xfs_mount_t *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) extern void xfs_freesb(xfs_mount_t *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) extern bool xfs_fs_writable(struct xfs_mount *mp, int level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) extern int xfs_sb_validate_fsb_count(struct xfs_sb *, uint64_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) extern void xfs_set_low_space_thresholds(struct xfs_mount *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) int xfs_zero_extent(struct xfs_inode *ip, xfs_fsblock_t start_fsb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) xfs_off_t count_fsb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct xfs_error_cfg * xfs_error_get_cfg(struct xfs_mount *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) int error_class, int error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) void xfs_force_summary_recalc(struct xfs_mount *mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) void xfs_mod_delalloc(struct xfs_mount *mp, int64_t delta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) #endif /* __XFS_MOUNT_H__ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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