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VFS_SET(9) Kernel Developer's Manual VFS_SET(9)

NAME

VFS_SETset 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.
VFCF_DELEGADMIN
Supports delegated administration if vfs.usermount 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⟩.
April 5, 2007 Debian