199767f8919635c4928607450d9e0abb932109ceToomas Soome * Copyright (c) 1989, 1991, 1993
199767f8919635c4928607450d9e0abb932109ceToomas Soome * The Regents of the University of California. All rights reserved.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Redistribution and use in source and binary forms, with or without
199767f8919635c4928607450d9e0abb932109ceToomas Soome * modification, are permitted provided that the following conditions
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 1. Redistributions of source code must retain the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer in the
199767f8919635c4928607450d9e0abb932109ceToomas Soome * documentation and/or other materials provided with the distribution.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 4. Neither the name of the University nor the names of its contributors
199767f8919635c4928607450d9e0abb932109ceToomas Soome * may be used to endorse or promote products derived from this software
199767f8919635c4928607450d9e0abb932109ceToomas Soome * without specific prior written permission.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
199767f8919635c4928607450d9e0abb932109ceToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
199767f8919635c4928607450d9e0abb932109ceToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
199767f8919635c4928607450d9e0abb932109ceToomas Soome * SUCH DAMAGE.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * @(#)mount.h 8.21 (Berkeley) 5/20/95
199767f8919635c4928607450d9e0abb932109ceToomas Soome * NOTE: When changing statfs structure, mount structure, MNT_* flags or
199767f8919635c4928607450d9e0abb932109ceToomas Soome * MNTK_* flags also update DDB show mount command in vfs_subr.c.
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef struct fsid { int32_t val[2]; } fsid_t; /* filesystem id type */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * File identifier.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * These are unique per filesystem on a single machine.
199767f8919635c4928607450d9e0abb932109ceToomas Soome u_short fid_data0; /* force longword alignment */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char fid_data[MAXFIDSZ]; /* data (variable length) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * filesystem statistics
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MFSNAMELEN 16 /* length of type name including null */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNAMELEN 88 /* size of on/from name bufs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define STATFS_VERSION 0x20030518 /* current version number */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint32_t f_version; /* structure version number */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_flags; /* copy of mount exported flags */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_bsize; /* filesystem fragment size */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_iosize; /* optimal transfer block size */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_blocks; /* total data blocks in filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_bfree; /* free blocks in filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int64_t f_bavail; /* free blocks avail to non-superuser */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_files; /* total file nodes in filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int64_t f_ffree; /* free nodes avail to non-superuser */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_syncwrites; /* count of sync writes since mount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_asyncwrites; /* count of async writes since mount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_syncreads; /* count of sync reads since mount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t f_asyncreads; /* count of async reads since mount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint32_t f_namemax; /* maximum filename length */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uid_t f_owner; /* user that mounted the filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char f_fstypename[MFSNAMELEN]; /* filesystem type name */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char f_mntfromname[MNAMELEN]; /* mounted filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char f_mntonname[MNAMELEN]; /* directory on which mounted */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define OMFSNAMELEN 16 /* length of fs type name, including null */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define OMNAMELEN (88 - 2 * sizeof(long)) /* size of on/from name bufs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* XXX getfsstat.2 is out of date with write and read counter changes here. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* XXX statfs.2 is out of date with read counter changes here. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_bsize; /* fundamental filesystem block size */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_iosize; /* optimal transfer block size */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_blocks; /* total data blocks in filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_bavail; /* free blocks avail to non-superuser */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_files; /* total file nodes in filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uid_t f_owner; /* user that mounted the filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int f_flags; /* copy of mount exported flags */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_syncwrites; /* count of sync writes since mount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_asyncwrites; /* count of async writes since mount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char f_fstypename[OMFSNAMELEN]; /* fs type name */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char f_mntonname[OMNAMELEN]; /* directory on which mounted */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_syncreads; /* count of sync reads since mount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome long f_asyncreads; /* count of async reads since mount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char f_mntfromname[OMNAMELEN];/* mounted filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * XXX on machines where longs are aligned to 8-byte boundaries, there
199767f8919635c4928607450d9e0abb932109ceToomas Soome * is an unnamed int32_t here. This spare was after the apparent end
199767f8919635c4928607450d9e0abb932109ceToomas Soome * of the struct until we bit off the read counters from f_mntonname.
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* Mount options list */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Structure per mounted filesystem. Each mounted filesystem has an
199767f8919635c4928607450d9e0abb932109ceToomas Soome * array of operations and an instance record. The filesystems are
199767f8919635c4928607450d9e0abb932109ceToomas Soome * put on a doubly linked list.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Lock reference:
199767f8919635c4928607450d9e0abb932109ceToomas Soome * m - mountlist_mtx
199767f8919635c4928607450d9e0abb932109ceToomas Soome * i - interlock
199767f8919635c4928607450d9e0abb932109ceToomas Soome * v - vnode freelist mutex
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Unmarked fields are considered stable as long as a ref is held.
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct mtx mnt_mtx; /* mount structure interlock */
199767f8919635c4928607450d9e0abb932109ceToomas Soome TAILQ_ENTRY(mount) mnt_list; /* (m) mount list */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vfsconf *mnt_vfc; /* configuration info */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vnode *mnt_vnodecovered; /* vnode we mounted on */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vnodelst mnt_nvnodelist; /* (i) list of vnodes */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vnodelst mnt_activevnodelist; /* (v) list of active vnodes */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int mnt_activevnodelistsize;/* (v) # of active vnodes */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int mnt_writeopcount; /* (i) write syscalls pending */
199767f8919635c4928607450d9e0abb932109ceToomas Soome uint64_t mnt_flag; /* (i) flags shared with user */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vfsoptlist *mnt_opt; /* current mount options */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vfsoptlist *mnt_optnew; /* new options passed to fs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int mnt_maxsymlinklen; /* max size of short symlink */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct statfs mnt_stat; /* cache of filesystem stats */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct ucred *mnt_cred; /* credentials of mounter */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int mnt_iosize_max; /* max size for clusters, etc */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct netexport *mnt_export; /* export list */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct label *mnt_label; /* MAC label for the fs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome u_int mnt_hashseed; /* Random seed for vfs_hash */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int mnt_lockref; /* (i) Lock reference count */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int mnt_secondary_writes; /* (i) # of secondary writes */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int mnt_secondary_accwrites;/* (i) secondary wr. starts */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct thread *mnt_susp_owner; /* (i) thread owning suspension */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char *mnt_gjprovider; /* gjournal provider name */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct lock mnt_explock; /* vfs_export walkers lock */
199767f8919635c4928607450d9e0abb932109ceToomas Soome TAILQ_ENTRY(mount) mnt_upper_link; /* (m) we in the all uppers */
199767f8919635c4928607450d9e0abb932109ceToomas Soome TAILQ_HEAD(, mount) mnt_uppers; /* (m) upper mounts over us*/
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Definitions for MNT_VNODE_FOREACH_ALL.
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct vnode *__mnt_vnode_next_all(struct vnode **mvp, struct mount *mp);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct vnode *__mnt_vnode_first_all(struct vnode **mvp, struct mount *mp);
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid __mnt_vnode_markerfree_all(struct vnode **mvp, struct mount *mp);
199767f8919635c4928607450d9e0abb932109ceToomas Soome for (vp = __mnt_vnode_first_all(&(mvp), (mp)); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome (vp) != NULL; vp = __mnt_vnode_next_all(&(mvp), (mp)))
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* MNT_IUNLOCK(mp); -- done in above function */ \
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Definitions for MNT_VNODE_FOREACH_ACTIVE.
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct vnode *__mnt_vnode_next_active(struct vnode **mvp, struct mount *mp);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct vnode *__mnt_vnode_first_active(struct vnode **mvp, struct mount *mp);
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid __mnt_vnode_markerfree_active(struct vnode **mvp, struct mount *);
199767f8919635c4928607450d9e0abb932109ceToomas Soome for (vp = __mnt_vnode_first_active(&(mvp), (mp)); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome (vp) != NULL; vp = __mnt_vnode_next_active(&(mvp), (mp)))
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_VNODE_FOREACH_ACTIVE_ABORT(mp, mvp) \
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_ITRYLOCK(mp) mtx_trylock(&(mp)->mnt_mtx)
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_IUNLOCK(mp) mtx_unlock(&(mp)->mnt_mtx)
199767f8919635c4928607450d9e0abb932109ceToomas Soome KASSERT((mp)->mnt_ref > 0, ("negative mnt_ref")); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* _KERNEL */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * User specifiable flags, stored in mnt_flag.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_RDONLY 0x0000000000000001ULL /* read only filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_SYNCHRONOUS 0x0000000000000002ULL /* fs written synchronously */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_NOEXEC 0x0000000000000004ULL /* can't exec from filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_NOSUID 0x0000000000000008ULL /* don't honor setuid fs bits */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_NFS4ACLS 0x0000000000000010ULL /* enable NFS version 4 ACLs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_UNION 0x0000000000000020ULL /* union with underlying fs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_ASYNC 0x0000000000000040ULL /* fs written asynchronously */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_SUIDDIR 0x0000000000100000ULL /* special SUID dir handling */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_SOFTDEP 0x0000000000200000ULL /* using soft updates */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_NOSYMFOLLOW 0x0000000000400000ULL /* do not follow symlinks */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_GJOURNAL 0x0000000002000000ULL /* GEOM journal support enabled */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_MULTILABEL 0x0000000004000000ULL /* MAC support for objects */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_ACLS 0x0000000008000000ULL /* ACL support enabled */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_NOATIME 0x0000000010000000ULL /* dont update file access time */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_NOCLUSTERR 0x0000000040000000ULL /* disable cluster read */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_NOCLUSTERW 0x0000000080000000ULL /* disable cluster write */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_SUJ 0x0000000100000000ULL /* using journaled soft updates */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_AUTOMOUNTED 0x0000000200000000ULL /* mounted by automountd(8) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * NFS export related mount flags.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_EXRDONLY 0x0000000000000080ULL /* exported read only */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_EXPORTED 0x0000000000000100ULL /* filesystem is exported */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_DEFEXPORTED 0x0000000000000200ULL /* exported to the world */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_EXPORTANON 0x0000000000000400ULL /* anon uid mapping for all */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_EXKERB 0x0000000000000800ULL /* exported with Kerberos */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_EXPUBLIC 0x0000000020000000ULL /* public export (WebNFS) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Flags set by internal operations,
199767f8919635c4928607450d9e0abb932109ceToomas Soome * but visible to the user.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * XXX some of these are not quite right.. (I've never seen the root flag set)
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_LOCAL 0x0000000000001000ULL /* filesystem is stored locally */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_QUOTA 0x0000000000002000ULL /* quotas are enabled on fs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_ROOTFS 0x0000000000004000ULL /* identifies the root fs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_USER 0x0000000000008000ULL /* mounted by a user */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_IGNORE 0x0000000000800000ULL /* do not show entry in df */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Mask of flags that are visible to statfs().
199767f8919635c4928607450d9e0abb932109ceToomas Soome * XXX I think that this could now become (~(MNT_CMDFLAGS))
199767f8919635c4928607450d9e0abb932109ceToomas Soome * but the 'mount' program may need changing to handle this.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \
199767f8919635c4928607450d9e0abb932109ceToomas Soome MNT_DEFEXPORTED | MNT_EXPORTANON| MNT_EXKERB | \
199767f8919635c4928607450d9e0abb932109ceToomas Soome MNT_IGNORE | MNT_EXPUBLIC | MNT_NOSYMFOLLOW | \
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* Mask of flags that can be updated. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_UPDATEMASK (MNT_NOSUID | MNT_NOEXEC | \
199767f8919635c4928607450d9e0abb932109ceToomas Soome MNT_NOCLUSTERR | MNT_NOCLUSTERW | MNT_SUIDDIR | \
199767f8919635c4928607450d9e0abb932109ceToomas Soome * External filesystem command modifier flags.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Unmount can use the MNT_FORCE flag.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * XXX: These are not STATES and really should be somewhere else.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * XXX: MNT_BYFSID collides with MNT_ACLS, but because MNT_ACLS is only used for
199767f8919635c4928607450d9e0abb932109ceToomas Soome * mount(2) and MNT_BYFSID is only used for unmount(2) it's harmless.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_UPDATE 0x0000000000010000ULL /* not real mount, just update */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_DELEXPORT 0x0000000000020000ULL /* delete export host lists */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_RELOAD 0x0000000000040000ULL /* reload filesystem data */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_FORCE 0x0000000000080000ULL /* force unmount or readonly */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_SNAPSHOT 0x0000000001000000ULL /* snapshot the filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_BYFSID 0x0000000008000000ULL /* specify filesystem by ID. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_CMDFLAGS (MNT_UPDATE | MNT_DELEXPORT | MNT_RELOAD | \
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Internal filesystem control flags stored in mnt_kern_flag.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * MNTK_UNMOUNT locks the mount entry so that name lookup cannot proceed
199767f8919635c4928607450d9e0abb932109ceToomas Soome * past the mount point. This keeps the subtree stable during mounts
199767f8919635c4928607450d9e0abb932109ceToomas Soome * and unmounts.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * MNTK_UNMOUNTF permits filesystems to detect a forced unmount while
199767f8919635c4928607450d9e0abb932109ceToomas Soome * dounmount() is still waiting to lock the mountpoint. This allows
199767f8919635c4928607450d9e0abb932109ceToomas Soome * the filesystem to cancel operations that might otherwise deadlock
199767f8919635c4928607450d9e0abb932109ceToomas Soome * with the unmount attempt (used by NFS).
199767f8919635c4928607450d9e0abb932109ceToomas Soome * MNTK_NOINSMNTQ is strict subset of MNTK_UNMOUNT. They are separated
199767f8919635c4928607450d9e0abb932109ceToomas Soome * to allow for failed unmount attempt to restore the syncer vnode for
199767f8919635c4928607450d9e0abb932109ceToomas Soome * the mount.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_UNMOUNTF 0x00000001 /* forced unmount in progress */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_ASYNC 0x00000002 /* filtered async flag */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_SOFTDEP 0x00000004 /* async disabled by softdep */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_NOINSMNTQ 0x00000008 /* insmntque is not allowed */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_DRAINING 0x00000010 /* lock draining is happening */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_REFEXPIRE 0x00000020 /* refcount expiring is happening */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_EXTENDED_SHARED 0x00000040 /* Allow shared locking for more ops */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_SHARED_WRITES 0x00000080 /* Allow shared locking for writes */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_NO_IOPF 0x00000100 /* Disallow page faults during reads
199767f8919635c4928607450d9e0abb932109ceToomas Soome and writes. Filesystem shall properly
199767f8919635c4928607450d9e0abb932109ceToomas Soome handle i/o state on EFAULT. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_USES_BCACHE 0x00004000 /* FS uses the buffer cache. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_NOASYNC 0x00800000 /* disable async */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_UNMOUNT 0x01000000 /* unmount in progress */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_MWAIT 0x02000000 /* waiting for unmount to finish */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_SUSPEND 0x08000000 /* request write suspension */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_SUSPEND2 0x04000000 /* block secondary writes */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_SUSPENDED 0x10000000 /* write operations are suspended */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_LOOKUP_SHARED 0x40000000 /* FS supports shared lock lookups */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNTK_NOKNOTE 0x80000000 /* Don't send KNOTEs from VOP hooks */
199767f8919635c4928607450d9e0abb932109ceToomas Soomestatic inline int
199767f8919635c4928607450d9e0abb932109ceToomas Soome return (mp != NULL && (mp->mnt_kern_flag & MNTK_SHARED_WRITES) != 0);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestatic inline int
199767f8919635c4928607450d9e0abb932109ceToomas Soome return (mp != NULL && (mp->mnt_kern_flag & MNTK_EXTENDED_SHARED) != 0);
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Sysctl CTL_VFS definitions.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Second level identifier specifies which filesystem. Second level
199767f8919635c4928607450d9e0abb932109ceToomas Soome * identifier VFS_VFSCONF returns information about all filesystems.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Second level identifier VFS_GENERIC is non-terminal.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFS_VFSCONF 0 /* get configured filesystems */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFS_GENERIC 0 /* generic filesystem information */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Third level identifiers for VFS_GENERIC are given below; third
199767f8919635c4928607450d9e0abb932109ceToomas Soome * level identifiers for specific filesystems are given in their
199767f8919635c4928607450d9e0abb932109ceToomas Soome * mount specific header files.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFS_CONF 2 /* struct: vfsconf for filesystem given
199767f8919635c4928607450d9e0abb932109ceToomas Soome as next argument */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Flags for various system call interfaces.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * waitfor flags to vfs_sync() and getfsstat()
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_WAIT 1 /* synchronously wait for I/O to complete */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_LAZY 3 /* push data not written by filesystem syncer */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MNT_SUSPEND 4 /* Suspend file system after sync */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Generic file handle
199767f8919635c4928607450d9e0abb932109ceToomas Soome fsid_t fh_fsid; /* Filesystem id of mount point */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Old export arguments without security flavor list
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct xucred ex_anon; /* mapping for anonymous user */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct sockaddr *ex_addr; /* net address to which exported */
199767f8919635c4928607450d9e0abb932109ceToomas Soome u_char ex_addrlen; /* and the net address length */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct sockaddr *ex_mask; /* mask of valid bits in saddr */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char *ex_indexfile; /* index file for WebNFS URLs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Export arguments for local filesystem mount calls.
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct xucred ex_anon; /* mapping for anonymous user */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct sockaddr *ex_addr; /* net address to which exported */
199767f8919635c4928607450d9e0abb932109ceToomas Soome u_char ex_addrlen; /* and the net address length */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct sockaddr *ex_mask; /* mask of valid bits in saddr */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char *ex_indexfile; /* index file for WebNFS URLs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int ex_numsecflavors; /* security flavor count */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int ex_secflavors[MAXSECFLAVORS]; /* list of security flavors */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Structure holding information for a publicly exported filesystem
199767f8919635c4928607450d9e0abb932109ceToomas Soome * (WebNFS). Currently the specs allow just for one such filesystem.
199767f8919635c4928607450d9e0abb932109ceToomas Soome int np_valid; /* Do we hold valid information */
199767f8919635c4928607450d9e0abb932109ceToomas Soome fhandle_t np_handle; /* Filehandle for pub fs (internal) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct mount *np_mount; /* Mountpoint of exported fs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Filesystem configuration information. One of these exists for each
199767f8919635c4928607450d9e0abb932109ceToomas Soome * type of filesystem supported by the kernel. These are searched at
199767f8919635c4928607450d9e0abb932109ceToomas Soome * mount time to identify the requested filesystem.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * XXX: Never change the first two arguments!
199767f8919635c4928607450d9e0abb932109ceToomas Soome char vfc_name[MFSNAMELEN]; /* filesystem type name */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vfsops *vfc_vfsops; /* filesystem operations vector */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int vfc_typenum; /* historic filesystem type number */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int vfc_refcount; /* number mounted of this type */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vfsoptdecl *vfc_opts; /* mount options */
199767f8919635c4928607450d9e0abb932109ceToomas Soome TAILQ_ENTRY(vfsconf) vfc_list; /* list of vfscons */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* Userland version of the struct vfsconf. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome struct vfsops *vfc_vfsops; /* filesystem operations vector */
199767f8919635c4928607450d9e0abb932109ceToomas Soome char vfc_name[MFSNAMELEN]; /* filesystem type name */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int vfc_typenum; /* historic filesystem type number */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int vfc_refcount; /* number mounted of this type */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * NB: these flags refer to IMPLEMENTATION properties, not properties of
199767f8919635c4928607450d9e0abb932109ceToomas Soome * any actual mounts; i.e., it does not make sense to change the flags.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_STATIC 0x00010000 /* statically compiled into kernel */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_NETWORK 0x00020000 /* may get data over the network */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_READONLY 0x00040000 /* writes are not implemented */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_SYNTHETIC 0x00080000 /* data does not represent real files */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_LOOPBACK 0x00100000 /* aliases some other mounted FS */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_UNICODE 0x00200000 /* stores file names as Unicode */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_JAIL 0x00400000 /* can be mounted from within a jail */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_DELEGADMIN 0x00800000 /* supports delegated administration */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFCF_SBDRY 0x01000000 /* defer stop requests */
199767f8919635c4928607450d9e0abb932109ceToomas Soome int vc_vers; /* should be VFSIDCTL_VERS1 (below) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* type of fs 'nfs' or '*' */
199767f8919635c4928607450d9e0abb932109ceToomas Soome fsctlop_t vc_op; /* operation VFS_CTL_* (below) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome u_int32_t vc_spare[12]; /* spare (must be zero) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* vfsidctl API version. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * New style VFS sysctls, do not reuse/conflict with the namespace for
199767f8919635c4928607450d9e0abb932109ceToomas Soome * private sysctls.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * All "global" sysctl ops have the 33rd bit set:
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 0x...1....
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Private sysctl ops should have the 33rd bit unset.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFS_CTL_QUERY 0x00010001 /* anything wrong? (vfsquery) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFS_CTL_TIMEO 0x00010002 /* set timeout for vfs notification */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFS_CTL_NOLOCKS 0x00010003 /* disable file locking */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* vfsquery flags */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VQ_NEEDAUTH 0x0002 /* server bad auth */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VQ_LOWDISK 0x0004 /* we're low on space */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VQ_MOUNT 0x0008 /* new filesystem arrived */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VQ_UNMOUNT 0x0010 /* filesystem has left */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VQ_DEAD 0x0020 /* filesystem is dead, needs force unmount */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VQ_ASSIST 0x0040 /* filesystem needs assistance from external
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VQ_NOTRESPLOCK 0x0080 /* server lockd down */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* Point a sysctl request at a vfsidctl's data. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * vfs_busy specific flags and mask.
199767f8919635c4928607450d9e0abb932109ceToomas Soomeextern int maxvfsconf; /* highest defined filesystem type */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Operations supported on mounted filesystem.
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_cmount_t(struct mntarg *ma, void *data, uint64_t flags);
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_unmount_t(struct mount *mp, int mntflags);
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_root_t(struct mount *mp, int flags, struct vnode **vpp);
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_quotactl_t(struct mount *mp, int cmds, uid_t uid, void *arg);
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_statfs_t(struct mount *mp, struct statfs *sbp);
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_sync_t(struct mount *mp, int waitfor);
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_vget_t(struct mount *mp, ino_t ino, int flags,
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_fhtovp_t(struct mount *mp, struct fid *fhp,
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_checkexp_t(struct mount *mp, struct sockaddr *nam,
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_extattrctl_t(struct mount *mp, int cmd,
199767f8919635c4928607450d9e0abb932109ceToomas Soome const char *attrname);
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef int vfs_sysctl_t(struct mount *mp, fsctlop_t op,
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef void vfs_susp_clean_t(struct mount *mp);
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef void vfs_notify_lowervp_t(struct mount *mp, struct vnode *lowervp);
199767f8919635c4928607450d9e0abb932109ceToomas Soome vfs_mount_t *vfs_spare[6]; /* spares for ABI compat */
199767f8919635c4928607450d9e0abb932109ceToomas Soome (mp__->mnt_vfc->vfc_flags & VFCF_SBDRY) && sigdeferstop())
199767f8919635c4928607450d9e0abb932109ceToomas Soome _rc = (*(MP)->mnt_op->vfs_unmount)(MP, FORCE); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome _rc = (*(MP)->mnt_op->vfs_root)(MP, FLAGS, VPP); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome _rc = (*(MP)->mnt_op->vfs_quotactl)(MP, C, U, A); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome _rc = (*(MP)->mnt_op->vfs_vget)(MP, INO, FLAGS, VPP); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome _rc = (*(MP)->mnt_op->vfs_fhtovp)(MP, FIDP, FLAGS, VPP); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define VFS_CHECKEXP(MP, NAM, EXFLG, CRED, NUMSEC, SEC) ({ \
199767f8919635c4928607450d9e0abb932109ceToomas Soome _rc = (*(MP)->mnt_op->vfs_checkexp)(MP, NAM, EXFLG, CRED, NUMSEC,\
199767f8919635c4928607450d9e0abb932109ceToomas Soome _rc = (*(MP)->mnt_op->vfs_extattrctl)(MP, C, FN, NS, N); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome _rc = (*(MP)->mnt_op->vfs_sysctl)(MP, OP, REQ); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (*(MP)->mnt_op->vfs_reclaim_lowervp != NULL) { \
199767f8919635c4928607450d9e0abb932109ceToomas Soome (*(MP)->mnt_op->vfs_reclaim_lowervp)((MP), (VP)); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome if (*(MP)->mnt_op->vfs_unlink_lowervp != NULL) { \
199767f8919635c4928607450d9e0abb932109ceToomas Soome (*(MP)->mnt_op->vfs_unlink_lowervp)((MP), (VP)); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Version numbers.
199767f8919635c4928607450d9e0abb932109ceToomas Soome DECLARE_MODULE(fsname, fsname ## _mod, SI_SUB_VFS, SI_ORDER_MIDDLE)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * exported vnode operations
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint dounmount(struct mount *, int, struct thread *);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint kernel_mount(struct mntarg *ma, uint64_t flags);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct mntarg *mount_arg(struct mntarg *ma, const char *name, const void *val, int len);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct mntarg *mount_argb(struct mntarg *ma, int flag, const char *name);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct mntarg *mount_argf(struct mntarg *ma, const char *name, const char *fmt, ...);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct mntarg *mount_argsu(struct mntarg *ma, const char *name, const void *val, int len);
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid statfs_scale_blocks(struct statfs *sf, long max_size);
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct vfsconf *vfs_byname_kld(const char *, struct thread *td, int *);
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid vfs_event_signal(fsid_t *, u_int32_t, intptr_t);
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid vfs_deleteopt(struct vfsoptlist *opts, const char *name);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_buildopts(struct uio *auio, struct vfsoptlist **options);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_flagopt(struct vfsoptlist *opts, const char *name, uint64_t *w,
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_getopt(struct vfsoptlist *, const char *, void **, int *);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_getopt_pos(struct vfsoptlist *opts, const char *name);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_getopt_size(struct vfsoptlist *opts, const char *name,
199767f8919635c4928607450d9e0abb932109ceToomas Soomechar *vfs_getopts(struct vfsoptlist *, const char *, int *error);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_copyopt(struct vfsoptlist *, const char *, void *, int);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_filteropt(struct vfsoptlist *, const char **legal);
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid vfs_opterror(struct vfsoptlist *opts, const char *fmt, ...);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_scanopt(struct vfsoptlist *opts, const char *name, const char *fmt, ...);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_setopt(struct vfsoptlist *opts, const char *name, void *value,
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_setopt_part(struct vfsoptlist *opts, const char *name, void *value,
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_setopts(struct vfsoptlist *opts, const char *name,
199767f8919635c4928607450d9e0abb932109ceToomas Soome const char *value);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_setpublicfs /* set publicly exported fs */
199767f8919635c4928607450d9e0abb932109ceToomas Soome (struct mount *, struct netexport *, struct export_args *);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint vfs_donmount(struct thread *td, uint64_t fsflags,
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct mount *vfs_getvfs(fsid_t *); /* return vfs given fsid */
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid vfs_mount_error(struct mount *, const char *, ...);
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid vfs_mountroot(void); /* mount our root filesystem */
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid vfs_mountedfrom(struct mount *, const char *from);
199767f8919635c4928607450d9e0abb932109ceToomas Soomevoid vfs_oexport_conv(const struct oexport_args *oexp,
199767f8919635c4928607450d9e0abb932109ceToomas Soomestruct mount *vfs_mount_alloc(struct vnode *, struct vfsconf *, const char *,
199767f8919635c4928607450d9e0abb932109ceToomas Soomeextern TAILQ_HEAD(mntlist, mount) mountlist; /* mounted filesystem list */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define vfsconf_unlock() sx_xunlock(&vfsconf_sx)
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define vfsconf_sunlock() sx_sunlock(&vfsconf_sx)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Declarations for these vfs default operations are located in
199767f8919635c4928607450d9e0abb932109ceToomas Soome * kern/vfs_default.c. They will be automatically used to replace
199767f8919635c4928607450d9e0abb932109ceToomas Soome * null entries in VFS ops tables when registering a new filesystem
199767f8919635c4928607450d9e0abb932109ceToomas Soome * type in the global table.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#else /* !_KERNEL */
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint fhstat(const struct fhandle *, struct stat *);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint fhstatfs(const struct fhandle *, struct statfs *);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint mount(const char *, const char *, int, void *);
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint unmount(const char *, int);
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* C library stuff */
199767f8919635c4928607450d9e0abb932109ceToomas Soomeint getvfsbyname(const char *, struct xvfsconf *);
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* _KERNEL */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* !_SYS_MOUNT_H_ */