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Man Pages


Manual Reference Pages  -  VFS_SET (9)

NAME

VFS_SET - set up loadable file system
.Vt vfsconf

CONTENTS

Synopsis
Description
Pseudocode
See Also
Authors

SYNOPSIS


.In sys/param.h
.In sys/kernel.h
.In sys/module.h
.In sys/mount.h void VFS_SET struct vfsops *vfsops fsname int flags

DESCRIPTION

VFS_SET creates a
.Vt vfsconf structure for the loadable module with the given vfsops, fsname and flags, and declares it by calling DECLARE_MODULE(9) using vfs_modevent as the event handler.

Possible values for the flags argument are:
VFCF_STATIC File system should be statically available in the kernel.
VFCF_NETWORK Network exportable file system.
VFCF_READONLY Does not support write operations.
VFCF_SYNTHETIC Pseudo file system, data does not represent on-disk files.
VFCF_LOOPBACK Loopback file system layer.
VFCF_UNICODE File names are stored as Unicode.
VFCF_JAIL Can be mounted from within a jail if security.jail.mount_allowed sysctl is set to 1.
VFCF_DELEGADMIN
  Supports delegated administration if vfs.usermount sysctl is set to 1.
VFCF_SBDRY When in VFS method, the thread suspension is deferred to the user boundary upon arrival of stop action.

PSEUDOCODE

/*
 * Fill in the fields for which we have special methods.
 * The others are initially null.  This tells vfs to change them to
 * pointers to vfs_std* functions during file system registration.
 */
static struct vfsops myfs_vfsops = {
        .vfs_mount =    myfs_mount,
        .vfs_root =     myfs_root,
        .vfs_statfs =   myfs_statfs,
        .vfs_unmount =  myfs_unmount,
};

VFS_SET(myfs_vfsops, myfs, 0);

SEE ALSO

jail(2), jail(8), DECLARE_MODULE(9), vfsconf(9), vfs_modevent(9)

AUTHORS

This manual page was written by
.An Chad David Aq davidc@acns.ab.ca .
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