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.