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).
