NAME    [Toc]    [Back]

     VFS_MOUNT -- mount a file system

SYNOPSIS    [Toc]    [Back]

     #include <sys/param.h>
     #include <sys/mount.h>
     #include <sys/vnode.h>

     int
     VFS_MOUNT(struct mount *mp, char *path, caddr_t data,
	 struct nameidata *ndp, struct thread *td);

DESCRIPTION    [Toc]    [Back]

     Mount a file system into the system's namespace.

     Its arguments are:

     mp    Structure representing the file system.

     path  Pathname where the file system is being mounted.

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

     ndp   Contains the result of a namei(9) call on the pathname of the
	   mountpoint.

     td    Thread which is mounting the file system.

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

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

SEE ALSO    [Toc]    [Back]

     VFS(9), vnode(9)

AUTHORS    [Toc]    [Back]

     This manual page was written by Doug Rabson.


FreeBSD 5.2.1			 July 24, 1996			 FreeBSD 5.2.1