VFS_MOUNT(9)						   BSD Kernel Developer's Manual					      VFS_MOUNT(9)

NAME

     VFS_MOUNT -- mount a file system

SYNOPSIS

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

     int
     VFS_MOUNT(struct mount *mp);

DESCRIPTION

     The VFS_MOUNT() macro mounts a file system into the system's namespace or updates the attributes of an already mounted file system.

     The arguments it expects are:

     mp    Structure representing the file system.

     The VFS_MOUNT() macro 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

     VFS(9), vnode(9)

AUTHORS

     This manual page was written by Doug Rabson.

BSD
								   May 23, 2009 							       BSD