VFS_SET(9) MidnightBSD Kernel Developer’s Manual VFS_SET(9)

NAME

VFS_SET — set up loadable file system vfsconf

SYNOPSIS

#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/mount.h>

void

VFS_SET(struct vfsops *vfsops, fsname, int flags);

DESCRIPTION

VFS_SET() creates a 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.

PSEUDOCODE

/*
* fill in the ones we use, and use the vfs_std for the rest.
*/
static struct vfsops myfs_vfsops = {
myfs_mount,
vfs_stdstart,
myfs_unmount,
myfs_root,
vfs_stdquotactl,
myfs_statfs,
vfs_stdsync,
vfs_stdvget,
vfs_stdfhtovp,
vfs_stdcheckexp,
vfs_stdvptofh,
vfs_stdinit,
vfs_stduninit,
vfs_stdextattrctl,
};

VFS_SET(myfs_vfsops, skelfs, 0);

SEE ALSO

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

AUTHORS

This manual page was written by Chad David 〈davidc@acns.ab.ca〉.

MidnightBSD 0.3 April 5, 2007 MidnightBSD 0.3