+// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
*/
+
#ifndef __XFS_MOUNT_H__
-#define __XFS_MOUNT_H__
-
-
-typedef struct xfs_trans_reservations {
- uint tr_write; /* extent alloc trans */
- uint tr_itruncate; /* truncate trans */
- uint tr_rename; /* rename trans */
- uint tr_link; /* link trans */
- uint tr_remove; /* unlink trans */
- uint tr_symlink; /* symlink trans */
- uint tr_create; /* create trans */
- uint tr_mkdir; /* mkdir trans */
- uint tr_ifree; /* inode free trans */
- uint tr_ichange; /* inode update trans */
- uint tr_growdata; /* fs data section grow trans */
- uint tr_swrite; /* sync write inode trans */
- uint tr_addafork; /* cvt inode to attributed trans */
- uint tr_writeid; /* write setuid/setgid file */
- uint tr_attrinval; /* attr fork buffer invalidation */
- uint tr_attrset; /* set/create an attribute */
- uint tr_attrrm; /* remove an attribute */
- uint tr_clearagi; /* clear bad agi unlinked ino bucket */
- uint tr_growrtalloc; /* grow realtime allocations */
- uint tr_growrtzero; /* grow realtime zeroing */
- uint tr_growrtfree; /* grow realtime freeing */
-} xfs_trans_reservations_t;
-
-
-#ifndef __KERNEL__
-/*
- * Moved here from xfs_ag.h to avoid reordering header files
- */
-#define XFS_DADDR_TO_AGNO(mp,d) \
- ((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks))
-#define XFS_DADDR_TO_AGBNO(mp,d) \
- ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks))
-#else
-struct cred;
-struct mounta;
-struct vfs;
-struct vnode;
-struct xfs_args;
-struct xfs_ihash;
-struct xfs_chash;
+#define __XFS_MOUNT_H__
+
struct xfs_inode;
-struct xfs_perag;
-struct xfs_quotainfo;
-struct xfs_iocore;
-struct xfs_dio;
-struct xfs_bmbt_irec;
-struct xfs_bmap_free;
-
-#define SPLDECL(s) unsigned long s
-#define AIL_LOCK_T lock_t
-#define AIL_LOCKINIT(x,y) spinlock_init(x,y)
-#define AIL_LOCK_DESTROY(x) spinlock_destroy(x)
-#define AIL_LOCK(mp,s) s=mutex_spinlock(&(mp)->m_ail_lock)
-#define AIL_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_ail_lock, s)
-
-
-/* Prototypes and functions for I/O core modularization, a vector
- * of functions is used to indirect from xfs/cxfs independent code
- * to the xfs/cxfs dependent code.
- * The vector is placed in the mount structure so that we can
- * minimize the number of memory indirections involved.
- */
+struct xfs_buftarg;
+struct xfs_da_geometry;
-typedef int (*xfs_dio_write_t)(struct xfs_dio *);
-typedef int (*xfs_dio_read_t)(struct xfs_dio *);
-typedef int (*xfs_strat_write_t)(struct xfs_iocore *, struct xfs_buf *);
-typedef int (*xfs_bmapi_t)(struct xfs_trans *, void *,
- xfs_fileoff_t, xfs_filblks_t, int,
- xfs_fsblock_t *, xfs_extlen_t,
- struct xfs_bmbt_irec *, int *,
- struct xfs_bmap_free *);
-typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *);
-typedef int (*xfs_rsync_t)(void *, int, xfs_off_t, xfs_off_t);
-typedef uint (*xfs_lck_map_shared_t)(void *);
-typedef void (*xfs_lock_t)(void *, uint);
-typedef void (*xfs_lock_demote_t)(void *, uint);
-typedef int (*xfs_lock_nowait_t)(void *, uint);
-typedef void (*xfs_unlk_t)(void *, unsigned int);
-typedef void (*xfs_chgtime_t)(void *, int);
-typedef xfs_fsize_t (*xfs_size_t)(void *);
-typedef xfs_fsize_t (*xfs_setsize_t)(void *, xfs_off_t);
-typedef xfs_fsize_t (*xfs_lastbyte_t)(void *);
-
-#ifdef CELL_CAPABLE
-typedef int (*xfs_checklock_t)(bhv_desc_t *, struct vnode *,
- int, off_t, off_t, int, struct cred *,
- struct flid *, vrwlock_t, int);
-#endif
-
-typedef struct xfs_ioops {
- xfs_dio_write_t xfs_dio_write_func;
- xfs_dio_read_t xfs_dio_read_func;
- xfs_strat_write_t xfs_strat_write_func;
- xfs_bmapi_t xfs_bmapi_func;
- xfs_bmap_eof_t xfs_bmap_eof_func;
- xfs_rsync_t xfs_rsync_func;
- xfs_lck_map_shared_t xfs_lck_map_shared;
- xfs_lock_t xfs_ilock;
- xfs_lock_demote_t xfs_ilock_demote;
- xfs_lock_nowait_t xfs_ilock_nowait;
- xfs_unlk_t xfs_unlock;
- xfs_chgtime_t xfs_chgtime;
- xfs_size_t xfs_size_func;
- xfs_setsize_t xfs_setsize_func;
- xfs_lastbyte_t xfs_lastbyte;
-#ifdef CELL_CAPABLE
- xfs_checklock_t xfs_checklock;
-#endif
-} xfs_ioops_t;
-
-
-#define XFS_DIO_WRITE(mp, diop) \
- (*(mp)->m_io_ops.xfs_dio_write_func)(diop)
-
-#define XFS_DIO_READ(mp, diop) \
- (*(mp)->m_io_ops.xfs_dio_read_func)(diop)
-
-#define XFS_STRAT_WRITE(mp, io, bp) \
- (*(mp)->m_io_ops.xfs_strat_write_func)(io, bp)
-
-#define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist) \
- (*(mp)->m_io_ops.xfs_bmapi_func) \
- (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist)
-
-#define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \
- (*(mp)->m_io_ops.xfs_bmap_eof_func) \
- ((io)->io_obj, endoff, whichfork, eof)
-
-#define XFS_RSYNC(mp, io, ioflag, start, end) \
- (*(mp)->m_io_ops.xfs_rsync_func)((io)->io_obj, ioflag, start, end)
-
-#define XFS_LCK_MAP_SHARED(mp, io) \
- (*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj)
-
-#define XFS_UNLK_MAP_SHARED(mp, io, mode) \
- (*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode)
-
-#define XFS_ILOCK(mp, io, mode) \
- (*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode)
-
-#define XFS_ILOCK_NOWAIT(mp, io, mode) \
- (*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode)
-
-#define XFS_IUNLOCK(mp, io, mode) \
- (*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode)
-
-#define XFS_ILOCK_DEMOTE(mp, io, mode) \
- (*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode)
-
-#define XFS_CHGTIME(mp, io, flags) \
- (*(mp)->m_io_ops.xfs_chgtime)((io)->io_obj, flags)
-
-#define XFS_SIZE(mp, io) \
- (*(mp)->m_io_ops.xfs_size_func)((io)->io_obj)
-
-#define XFS_SETSIZE(mp, io, newsize) \
- (*(mp)->m_io_ops.xfs_setsize_func)((io)->io_obj, newsize)
-
-#define XFS_LASTBYTE(mp, io) \
- (*(mp)->m_io_ops.xfs_lastbyte)((io)->io_obj)
+typedef void (*buf_writeback_fn)(struct xfs_buf *bp);
+/* dynamic preallocation free space thresholds, 5% down to 1% */
+enum {
+ XFS_LOWSP_1_PCNT = 0,
+ XFS_LOWSP_2_PCNT,
+ XFS_LOWSP_3_PCNT,
+ XFS_LOWSP_4_PCNT,
+ XFS_LOWSP_5_PCNT,
+ XFS_LOWSP_MAX,
+};
+/*
+ * Define a user-level mount structure with all we need
+ * in order to make use of the numerous XFS_* macros.
+ */
typedef struct xfs_mount {
- bhv_desc_t m_bhv; /* vfs xfs behavior */
- xfs_tid_t m_tid; /* next unused tid for fs */
- AIL_LOCK_T m_ail_lock; /* fs AIL mutex */
- xfs_ail_entry_t m_ail; /* fs active log item list */
- uint m_ail_gen; /* fs AIL generation count */
xfs_sb_t m_sb; /* copy of fs superblock */
- lock_t m_sb_lock; /* sb counter mutex */
- struct xfs_buf *m_sb_bp; /* buffer for superblock */
- char *m_fsname; /* filesystem name */
- int m_fsname_len; /* strlen of fs name */
+#define m_icount m_sb.sb_icount
+#define m_ifree m_sb.sb_ifree
+#define m_fdblocks m_sb.sb_fdblocks
+ spinlock_t m_sb_lock;
+
+ /*
+ * Bitsets of per-fs metadata that have been checked and/or are sick.
+ * Callers must hold m_sb_lock to access these two fields.
+ */
+ uint8_t m_fs_checked;
+ uint8_t m_fs_sick;
+
+ char *m_fsname; /* filesystem name */
int m_bsize; /* fs logical block size */
+ spinlock_t m_agirotor_lock;
xfs_agnumber_t m_agfrotor; /* last ag where space found */
xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */
xfs_agnumber_t m_maxagi; /* highest inode alloc group */
- int m_ihsize; /* size of next field */
- struct xfs_ihash *m_ihash; /* fs private inode hash table*/
- struct xfs_inode *m_inodes; /* active inode list */
- mutex_t m_ilock; /* inode list mutex */
- uint m_ireclaims; /* count of calls to reclaim*/
- uint m_readio_log; /* min read size log bytes */
- uint m_readio_blocks; /* min read size blocks */
- uint m_writeio_log; /* min write size log bytes */
- uint m_writeio_blocks; /* min write size blocks */
- void *m_log; /* log specific stuff */
- int m_logbufs; /* number of log buffers */
- int m_logbsize; /* size of each log buffer */
+ struct xfs_ino_geometry m_ino_geo; /* inode geometry */
uint m_rsumlevels; /* rt summary levels */
uint m_rsumsize; /* size of rt summary, bytes */
+ /*
+ * Optional cache of rt summary level per bitmap block with the
+ * invariant that m_rsum_cache[bbno] <= the minimum i for which
+ * rsum[i][bbno] != 0. Reads and writes are serialized by the rsumip
+ * inode lock.
+ */
+ uint8_t *m_rsum_cache;
struct xfs_inode *m_rbmip; /* pointer to bitmap inode */
struct xfs_inode *m_rsumip; /* pointer to summary inode */
- struct xfs_inode *m_rootip; /* pointer to root directory */
- struct xfs_quotainfo *m_quotainfo; /* disk quota information */
- buftarg_t m_ddev_targ; /* ptr to data device */
- buftarg_t m_logdev_targ; /* ptr to log device */
- buftarg_t m_rtdev_targ; /* ptr to rt device */
- buftarg_t *m_ddev_targp; /* saves taking the address */
-#define m_rtdev_targp(m)(&(m)->m_rtdev_targ)
-#define m_dev m_ddev_targ.dev
-#define m_logdev m_logdev_targ.dev
-#define m_rtdev m_rtdev_targ.dev
- __uint8_t m_dircook_elog; /* log d-cookie entry bits */
- __uint8_t m_blkbit_log; /* blocklog + NBBY */
- __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */
- __uint8_t m_agno_log; /* log #ag's */
- __uint8_t m_agino_log; /* #bits for agino in inum */
- __uint8_t m_nreadaheads; /* #readahead buffers */
- __uint16_t m_inode_cluster_size;/* min inode buf size */
+ struct xfs_buftarg *m_ddev_targp;
+ struct xfs_buftarg *m_logdev_targp;
+ struct xfs_buftarg *m_rtdev_targp;
+#define m_dev m_ddev_targp
+#define m_logdev m_logdev_targp
+#define m_rtdev m_rtdev_targp
+ uint8_t m_dircook_elog; /* log d-cookie entry bits */
+ uint8_t m_blkbit_log; /* blocklog + NBBY */
+ uint8_t m_blkbb_log; /* blocklog - BBSHIFT */
+ uint8_t m_sectbb_log; /* sectorlog - BBSHIFT */
+ uint8_t m_agno_log; /* log #ag's */
uint m_blockmask; /* sb_blocksize-1 */
uint m_blockwsize; /* sb_blocksize in words */
uint m_blockwmask; /* blockwsize-1 */
uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */
uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */
uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */
- uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */
- uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */
- uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */
- uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */
- uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */
- struct xfs_perag *m_perag; /* per-ag accounting info */
- struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */
- sema_t m_growlock; /* growfs mutex */
- int m_fixedfsid[2]; /* unchanged for life of FS */
- uint m_dmevmask; /* DMI events for this FS */
- uint m_flags; /* global mount flags */
- uint m_attroffset; /* inode attribute offset */
- int m_da_node_ents; /* how many entries in danode */
- int m_ialloc_inos; /* inodes in inode allocation */
- int m_ialloc_blks; /* blocks in inode allocation */
- int m_litino; /* size of inode union area */
- int m_inoalign_mask;/* mask sb_inoalignmt if used */
+ uint m_rmap_mxr[2]; /* max rmap btree records */
+ uint m_rmap_mnr[2]; /* min rmap btree records */
+ uint m_refc_mxr[2]; /* max refc btree records */
+ uint m_refc_mnr[2]; /* min refc btree records */
+ uint m_alloc_maxlevels; /* max alloc btree levels */
+ uint m_bm_maxlevels[2]; /* max bmap btree levels */
+ uint m_rmap_maxlevels; /* max rmap btree levels */
+ uint m_refc_maxlevels; /* max refc btree levels */
+ unsigned int m_agbtree_maxlevels; /* max level of all AG btrees */
+ xfs_extlen_t m_ag_prealloc_blocks; /* reserved ag blocks */
+ uint m_alloc_set_aside; /* space we can't use */
+ uint m_ag_max_usable; /* max space per AG */
+ struct radix_tree_root m_perag_tree;
+ uint64_t m_features; /* active filesystem features */
+ uint64_t m_low_space[XFS_LOWSP_MAX];
+ unsigned long m_opstate; /* dynamic state flags */
+ bool m_finobt_nores; /* no per-AG finobt resv. */
uint m_qflags; /* quota status flags */
- xfs_trans_reservations_t m_reservations;/* precomputed res values */
- __uint64_t m_maxicount; /* maximum inode count */
- __uint64_t m_resblks; /* total reserved blocks */
- __uint64_t m_resblks_avail;/* available reserved blocks */
-#if XFS_BIG_FILESYSTEMS
- xfs_ino_t m_inoadd; /* add value for ino64_offset */
-#endif
+ uint m_attroffset; /* inode attribute offset */
+ struct xfs_trans_resv m_resv; /* precomputed res values */
int m_dalign; /* stripe unit */
int m_swidth; /* stripe width */
- int m_sinoalign; /* stripe unit inode alignmnt */
- int m_attr_magicpct;/* 37% of the blocksize */
- int m_dir_magicpct; /* 37% of the dir blocksize */
- __uint8_t m_mk_sharedro; /* mark shared ro on unmount */
- __uint8_t m_inode_quiesce;/* call quiesce on new inodes.
- field governed by m_ilock */
- __uint8_t m_dirversion; /* 1 or 2 */
- xfs_dirops_t m_dirops; /* table of dir funcs */
- int m_dirblksize; /* directory block sz--bytes */
- int m_dirblkfsbs; /* directory block sz--fsbs */
- xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */
- xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */
- xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */
- int m_chsize; /* size of next field */
- struct xfs_chash *m_chash; /* fs private inode per-cluster
- * hash table */
- struct xfs_ioops m_io_ops; /* vector of I/O ops */
- struct xfs_expinfo *m_expinfo; /* info to export to other
- cells. */
- uint64_t m_shadow_pinmask;
- /* which bits matter in rpc
- log item pin masks */
- uint m_cxfstype; /* mounted shared, etc. */
- lock_t m_freeze_lock; /* Lock for m_frozen */
- uint m_frozen; /* FS frozen for shutdown or
- * snapshot */
- sv_t m_wait_unfreeze;/* waiting to unfreeze */
- atomic_t m_active_trans; /* number trans frozen */
- struct timer_list m_sbdirty_timer;/* superblock dirty timer
- * for nfs refcache */
-} xfs_mount_t;
-
-/*
- * Flags for m_flags.
- */
-#define XFS_MOUNT_WSYNC 0x00000001 /* for nfs - all metadata ops
- must be synchronous except
- for space allocations */
-#if XFS_BIG_FILESYSTEMS
-#define XFS_MOUNT_INO64 0x00000002
-#endif
-#define XFS_MOUNT_ROOTQCHECK 0x00000004
- /* 0x00000008 -- currently unused */
-#define XFS_MOUNT_FS_SHUTDOWN 0x00000010 /* atomic stop of all filesystem
- operations, typically for
- disk errors in metadata */
-#define XFS_MOUNT_NOATIME 0x00000020 /* don't modify inode access
- times on reads */
-#define XFS_MOUNT_RETERR 0x00000040 /* return alignment errors to
- user */
-#define XFS_MOUNT_NOALIGN 0x00000080 /* turn off stripe alignment
- allocations */
- /* 0x00000100 -- currently unused */
-#define XFS_MOUNT_REGISTERED 0x00000200 /* registered with cxfs master
- cell logic */
-#define XFS_MOUNT_NORECOVERY 0x00000400 /* no recovery - dirty fs */
-#define XFS_MOUNT_SHARED 0x00000800 /* shared mount */
-#define XFS_MOUNT_DFLT_IOSIZE 0x00001000 /* set default i/o size */
-#define XFS_MOUNT_OSYNCISOSYNC 0x00002000 /* o_sync is REALLY o_sync */
- /* osyncisdsync is now default*/
-#define XFS_MOUNT_NOUUID 0x00004000 /* ignore uuid during mount */
-#define XFS_MOUNT_32BITINODES 0x00008000 /* do not create inodes above
- * 32 bits in size */
-#define XFS_MOUNT_IRIXSGID 0x00010000 /* Irix-style sgid inheritance */
-#define XFS_MOUNT_NOLOGFLUSH 0x00020000
-
-/*
- * Flags for m_cxfstype
- */
-#define XFS_CXFS_NOT 0x00000001 /* local mount */
-#define XFS_CXFS_SERVER 0x00000002 /* we're the CXFS server */
-#define XFS_CXFS_CLIENT 0x00000004 /* We're a CXFS client */
-#define XFS_CXFS_REC_ENABLED 0x00000008 /* recovery is enabled */
-
-#define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN)
+ const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */
+
+ struct xfs_da_geometry *m_dir_geo; /* directory block geometry */
+ struct xfs_da_geometry *m_attr_geo; /* attribute block geometry */
+
+ /*
+ * anonymous struct to allow xfs_dquot_buf.c to compile.
+ * Pointer is always null in userspace, so code does not use it at all
+ */
+ struct {
+ int qi_dqperchunk;
+ } *m_quotainfo;
+
+ buf_writeback_fn m_buf_writeback_fn;
+
+ /*
+ * xlog is defined in libxlog and thus is not intialized by libxfs. This
+ * allows an application to initialize and store a reference to the log
+ * if warranted.
+ */
+ struct xlog *m_log; /* log specific stuff */
+
+ /*
+ * Global count of allocation btree blocks in use across all AGs. Only
+ * used when perag reservation is enabled. Helps prevent block
+ * reservation from attempting to reserve allocation btree blocks.
+ */
+ atomic64_t m_allocbt_blks;
+ spinlock_t m_perag_lock; /* lock for m_perag_tree */
-/*
- * Default minimum read and write sizes.
- */
-#define XFS_READIO_LOG_LARGE 12 /* > 32MB memory */
-#define XFS_WRITEIO_LOG_LARGE 12
+} xfs_mount_t;
-/*
- * Max and min values for UIO and mount-option defined I/O sizes;
- * min value can't be less than a page. Currently unused.
- */
-#define XFS_MAX_IO_LOG 16 /* 64K */
-#define XFS_MIN_IO_LOG PAGE_SHIFT
+#define M_IGEO(mp) (&(mp)->m_ino_geo)
/*
- * Synchronous read and write sizes. This should be
- * better for NFSv2 wsync filesystems.
+ * Flags for m_features.
+ *
+ * These are all the active features in the filesystem, regardless of how
+ * they are configured.
*/
-#define XFS_WSYNC_READIO_LOG 15 /* 32K */
-#define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */
+#define XFS_FEAT_ATTR (1ULL << 0) /* xattrs present in fs */
+#define XFS_FEAT_NLINK (1ULL << 1) /* 32 bit link counts */
+#define XFS_FEAT_QUOTA (1ULL << 2) /* quota active */
+#define XFS_FEAT_ALIGN (1ULL << 3) /* inode alignment */
+#define XFS_FEAT_DALIGN (1ULL << 4) /* data alignment */
+#define XFS_FEAT_LOGV2 (1ULL << 5) /* version 2 logs */
+#define XFS_FEAT_SECTOR (1ULL << 6) /* sector size > 512 bytes */
+#define XFS_FEAT_EXTFLG (1ULL << 7) /* unwritten extents */
+#define XFS_FEAT_ASCIICI (1ULL << 8) /* ASCII only case-insens. */
+#define XFS_FEAT_LAZYSBCOUNT (1ULL << 9) /* Superblk counters */
+#define XFS_FEAT_ATTR2 (1ULL << 10) /* dynamic attr fork */
+#define XFS_FEAT_PARENT (1ULL << 11) /* parent pointers */
+#define XFS_FEAT_PROJID32 (1ULL << 12) /* 32 bit project id */
+#define XFS_FEAT_CRC (1ULL << 13) /* metadata CRCs */
+#define XFS_FEAT_V3INODES (1ULL << 14) /* Version 3 inodes */
+#define XFS_FEAT_PQUOTINO (1ULL << 15) /* non-shared proj/grp quotas */
+#define XFS_FEAT_FTYPE (1ULL << 16) /* inode type in dir */
+#define XFS_FEAT_FINOBT (1ULL << 17) /* free inode btree */
+#define XFS_FEAT_RMAPBT (1ULL << 18) /* reverse map btree */
+#define XFS_FEAT_REFLINK (1ULL << 19) /* reflinked files */
+#define XFS_FEAT_SPINODES (1ULL << 20) /* sparse inode chunks */
+#define XFS_FEAT_META_UUID (1ULL << 21) /* metadata UUID */
+#define XFS_FEAT_REALTIME (1ULL << 22) /* realtime device present */
+#define XFS_FEAT_INOBTCNT (1ULL << 23) /* inobt block counts */
+#define XFS_FEAT_BIGTIME (1ULL << 24) /* large timestamps */
+#define XFS_FEAT_NEEDSREPAIR (1ULL << 25) /* needs xfs_repair */
+#define XFS_FEAT_NREXT64 (1ULL << 26) /* large extent counters */
+
+#define __XFS_HAS_FEAT(name, NAME) \
+static inline bool xfs_has_ ## name (struct xfs_mount *mp) \
+{ \
+ return mp->m_features & XFS_FEAT_ ## NAME; \
+}
-#define xfs_force_shutdown(m,f) _xfs_force_shutdown(m,f,__FILE__,__LINE__);
-/*
- * Flags sent to xfs_force_shutdown.
- */
-#define XFS_METADATA_IO_ERROR 0x1
-#define XFS_LOG_IO_ERROR 0x2
-#define XFS_FORCE_UMOUNT 0x4
-#define XFS_CORRUPT_INCORE 0x8 /* corrupt in-memory data structures */
-#if CELL_CAPABLE
-#define XFS_SHUTDOWN_REMOTE_REQ 0x10 /* shutdown req came from remote cell */
-#endif
+/* Some features can be added dynamically so they need a set wrapper, too. */
+#define __XFS_ADD_FEAT(name, NAME) \
+ __XFS_HAS_FEAT(name, NAME); \
+static inline void xfs_add_ ## name (struct xfs_mount *mp) \
+{ \
+ mp->m_features |= XFS_FEAT_ ## NAME; \
+ xfs_sb_version_add ## name(&mp->m_sb); \
+}
-/*
- * xflags for xfs_syncsub
- */
-#define XFS_XSYNC_RELOC 0x01
+/* Superblock features */
+__XFS_ADD_FEAT(attr, ATTR)
+__XFS_HAS_FEAT(nlink, NLINK)
+__XFS_ADD_FEAT(quota, QUOTA)
+__XFS_HAS_FEAT(align, ALIGN)
+__XFS_HAS_FEAT(dalign, DALIGN)
+__XFS_HAS_FEAT(logv2, LOGV2)
+__XFS_HAS_FEAT(sector, SECTOR)
+__XFS_HAS_FEAT(extflg, EXTFLG)
+__XFS_HAS_FEAT(asciici, ASCIICI)
+__XFS_HAS_FEAT(lazysbcount, LAZYSBCOUNT)
+__XFS_ADD_FEAT(attr2, ATTR2)
+__XFS_HAS_FEAT(parent, PARENT)
+__XFS_ADD_FEAT(projid32, PROJID32)
+__XFS_HAS_FEAT(crc, CRC)
+__XFS_HAS_FEAT(v3inodes, V3INODES)
+__XFS_HAS_FEAT(pquotino, PQUOTINO)
+__XFS_HAS_FEAT(ftype, FTYPE)
+__XFS_HAS_FEAT(finobt, FINOBT)
+__XFS_HAS_FEAT(rmapbt, RMAPBT)
+__XFS_HAS_FEAT(reflink, REFLINK)
+__XFS_HAS_FEAT(sparseinodes, SPINODES)
+__XFS_HAS_FEAT(metauuid, META_UUID)
+__XFS_HAS_FEAT(realtime, REALTIME)
+__XFS_HAS_FEAT(inobtcounts, INOBTCNT)
+__XFS_HAS_FEAT(bigtime, BIGTIME)
+__XFS_HAS_FEAT(needsrepair, NEEDSREPAIR)
+__XFS_HAS_FEAT(large_extent_counts, NREXT64)
+
+/* Kernel mount features that we don't support */
+#define __XFS_UNSUPP_FEAT(name) \
+static inline bool xfs_has_ ## name (struct xfs_mount *mp) \
+{ \
+ return false; \
+}
+__XFS_UNSUPP_FEAT(wsync)
+__XFS_UNSUPP_FEAT(noattr2)
+__XFS_UNSUPP_FEAT(ikeep)
+__XFS_UNSUPP_FEAT(swalloc)
+__XFS_UNSUPP_FEAT(small_inums)
+__XFS_UNSUPP_FEAT(readonly)
+
+/* Operational mount state flags */
+#define XFS_OPSTATE_INODE32 0 /* inode32 allocator active */
+#define XFS_OPSTATE_DEBUGGER 1 /* is this the debugger? */
+#define XFS_OPSTATE_REPORT_CORRUPTION 2 /* report buffer corruption? */
+#define XFS_OPSTATE_PERAG_DATA_LOADED 3 /* per-AG data initialized? */
+
+#define __XFS_IS_OPSTATE(name, NAME) \
+static inline bool xfs_is_ ## name (struct xfs_mount *mp) \
+{ \
+ return (mp)->m_opstate & (1UL << XFS_OPSTATE_ ## NAME); \
+} \
+static inline bool xfs_clear_ ## name (struct xfs_mount *mp) \
+{ \
+ bool ret = xfs_is_ ## name(mp); \
+\
+ (mp)->m_opstate &= ~(1UL << XFS_OPSTATE_ ## NAME); \
+ return ret; \
+} \
+static inline bool xfs_set_ ## name (struct xfs_mount *mp) \
+{ \
+ bool ret = xfs_is_ ## name(mp); \
+\
+ (mp)->m_opstate |= (1UL << XFS_OPSTATE_ ## NAME); \
+ return ret; \
+}
-/*
- * Flags for xfs_mountfs
- */
-#define XFS_MFSI_SECOND 0x01 /* Is a cxfs secondary mount -- skip */
- /* stuff which should only be done */
- /* once. */
-#define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */
-#define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */
- /* log recovery */
+__XFS_IS_OPSTATE(inode32, INODE32)
+__XFS_IS_OPSTATE(debugger, DEBUGGER)
+__XFS_IS_OPSTATE(reporting_corruption, REPORT_CORRUPTION)
+__XFS_IS_OPSTATE(perag_data_loaded, PERAG_DATA_LOADED)
-/*
- * Macros for getting from mount to vfs and back.
- */
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_MTOVFS)
-struct vfs *xfs_mtovfs(xfs_mount_t *mp);
-#define XFS_MTOVFS(mp) xfs_mtovfs(mp)
-#else
-#define XFS_MTOVFS(mp) (bhvtovfs(&(mp)->m_bhv))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BHVTOM)
-xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp);
-#define XFS_BHVTOM(bdp) xfs_bhvtom(bdp)
-#else
-#define XFS_BHVTOM(bdp) ((xfs_mount_t *)BHV_PDATA(bdp))
-#endif
-
-
-/*
- * Moved here from xfs_ag.h to avoid reordering header files
- */
+#define __XFS_UNSUPP_OPSTATE(name) \
+static inline bool xfs_is_ ## name (struct xfs_mount *mp) \
+{ \
+ return false; \
+}
+__XFS_UNSUPP_OPSTATE(readonly)
+__XFS_UNSUPP_OPSTATE(shutdown)
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGNO)
-xfs_agnumber_t xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d);
-#define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d)
-#else
+/* don't fail on device size or AG count checks */
+#define LIBXFS_MOUNT_DEBUGGER (1U << 0)
+/* report metadata corruption to stdout */
+#define LIBXFS_MOUNT_REPORT_CORRUPTION (1U << 1)
-static inline xfs_agnumber_t XFS_DADDR_TO_AGNO(xfs_mount_t *mp, xfs_daddr_t d)
-{
- d = XFS_BB_TO_FSBT(mp, d);
- do_div(d, mp->m_sb.sb_agblocks);
- return (xfs_agnumber_t) d;
-}
+#define LIBXFS_BHASHSIZE(sbp) (1<<10)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_AGBNO)
-xfs_agblock_t xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d);
-#define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d)
-#else
+void libxfs_compute_all_maxlevels(struct xfs_mount *mp);
+struct xfs_mount *libxfs_mount(struct xfs_mount *mp, struct xfs_sb *sb,
+ dev_t dev, dev_t logdev, dev_t rtdev, unsigned int flags);
+int libxfs_flush_mount(struct xfs_mount *mp);
+int libxfs_umount(struct xfs_mount *mp);
+extern void libxfs_rtmount_destroy (xfs_mount_t *);
-static inline xfs_agblock_t XFS_DADDR_TO_AGBNO(xfs_mount_t *mp, xfs_daddr_t d)
-{
- d = XFS_BB_TO_FSBT(mp, d);
- return (xfs_agblock_t) do_div(d, mp->m_sb.sb_agblocks);
-}
+/* Dummy xfs_dquot so that libxfs compiles. */
+struct xfs_dquot {
+ int q_type;
+};
-#endif
+typedef struct wait_queue_head {
+} wait_queue_head_t;
-/*
- * This structure is for use by the xfs_mod_incore_sb_batch() routine.
- */
-typedef struct xfs_mod_sb {
- xfs_sb_field_t msb_field; /* Field to modify, see below */
- int msb_delta; /* change to make to the specified field */
-} xfs_mod_sb_t;
-
-#define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock), PINOD)
-#define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock))
-#define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock)
-#define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s))
-
-void xfs_mod_sb(xfs_trans_t *, __int64_t);
-xfs_mount_t *xfs_mount_init(void);
-void xfs_mount_free(xfs_mount_t *mp, int remove_bhv);
-int xfs_mountfs(struct vfs *, xfs_mount_t *mp, kdev_t, int);
-int xfs_mountargs(struct mounta *, struct xfs_args *);
-
-int xfs_unmountfs(xfs_mount_t *, int, struct cred *);
-void xfs_unmountfs_close(xfs_mount_t *, int, struct cred *);
-int xfs_unmountfs_writesb(xfs_mount_t *);
-int xfs_unmount_flush(xfs_mount_t *, int);
-int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int, int);
-int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, uint, int);
-int xfs_readsb(xfs_mount_t *mp);
-struct xfs_buf *xfs_getsb(xfs_mount_t *, int);
-void xfs_freesb(xfs_mount_t *);
-void _xfs_force_shutdown(struct xfs_mount *, int, char *, int);
-int xfs_syncsub(xfs_mount_t *, int, int, int *);
-void xfs_initialize_perag(xfs_mount_t *, int);
-void xfs_xlatesb(void *, struct xfs_sb *, int, xfs_arch_t, __int64_t);
+static inline void wake_up(wait_queue_head_t *wq) {}
-/*
- * Flags for freeze operations.
- */
-#define XFS_FREEZE_WRITE 1
-#define XFS_FREEZE_TRANS 2
+struct xfs_defer_drain { /* empty */ };
-void xfs_start_freeze(xfs_mount_t *, int);
-void xfs_finish_freeze(xfs_mount_t *);
-void xfs_check_frozen(xfs_mount_t *, bhv_desc_t *, int, int);
+#define xfs_defer_drain_init(dr) ((void)0)
+#define xfs_defer_drain_free(dr) ((void)0)
-extern struct vfsops xfs_vfsops;
+#define xfs_perag_intent_get(mp, agno) xfs_perag_get((mp), (agno))
+#define xfs_perag_intent_put(pag) xfs_perag_put(pag)
-#endif /* __KERNEL__ */
+static inline void xfs_perag_intent_hold(struct xfs_perag *pag) {}
+static inline void xfs_perag_intent_rele(struct xfs_perag *pag) {}
#endif /* __XFS_MOUNT_H__ */
projects / thirdparty / xfsprogs-dev.git / blobdiff