VFS_MOUNT(9)

NAME
VFS_MOUNT - mount a filesystem

SYNOPSIS
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/vnode.h>
int
VFS_MOUNT(struct mount *mp, char *path, caddr_t data, struct ucred *cred);

DESCRIPTION
Mount a filesystem into the system's namespace.

Its arguments are:

mp  Structure representing the filesystem.

path
    Pathname where the filesystem is being mounted.

data
    Filesystem specific data. This should be read into the kernel using copyin(9).

cred
    Pointer to a struct ucred for user credentials checking.

This is called both to mount new filesystems and to change the attributes of an existing filesystem. If the MNT_UPDATE flag is set in mp->mnt_flag then the filesystem should update its internal state from the value of mp->mnt_flag. This can be used, for instance, to convert a read-only filesystem to read-write. It is also used by mountd(8) to update the NFS export information for the filesystem.

If the MNT_UPDATE flag is not specified, then this is a newly mounted filesystem. The filesystem code should allocate and initialize any private data needed to represent the filesystem (it can use the mp->mnt_data field to store this information).

SEE ALSO
VFS(9), vnode(9)

AUTHORS
This man page was written by Doug Rabson.