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| author | David Howells <dhowells@redhat.com> | 2018-02-06 07:26:30 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2018-02-06 15:43:37 +0100 |
| commit | 4d673da14533b32fe8d3125b5b7be4fea14e39a8 (patch) | |
| tree | d0780b5603a48614696e7e9afebe5b61552c6cd1 /Documentation | |
| parent | afs: Rearrange afs_select_fileserver() a little (diff) | |
| download | linux-4d673da14533b32fe8d3125b5b7be4fea14e39a8.tar.xz linux-4d673da14533b32fe8d3125b5b7be4fea14e39a8.zip | |
afs: Support the AFS dynamic root
Support the AFS dynamic root which is a pseudo-volume that doesn't connect
to any server resource, but rather is just a root directory that
dynamically creates mountpoint directories where the name of such a
directory is the name of the cell.
Such a mount can be created thus:
mount -t afs none /afs -o dyn
Dynamic root superblocks aren't shared except by bind mounts and
propagation. Cell root volumes can then be mounted by referring to them by
name, e.g.:
ls /afs/grand.central.org/
ls /afs/.grand.central.org/
The kernel will upcall to consult the DNS if the address wasn't supplied
directly.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/filesystems/afs.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/filesystems/afs.txt b/Documentation/filesystems/afs.txt index ba99b5ac4fd8..c5254f6d234d 100644 --- a/Documentation/filesystems/afs.txt +++ b/Documentation/filesystems/afs.txt @@ -7,6 +7,7 @@ Contents: - Overview. - Usage. - Mountpoints. + - Dynamic root. - Proc filesystem. - The cell database. - Security. @@ -127,6 +128,22 @@ mounted on /afs in one go by doing: umount /afs +============ +DYNAMIC ROOT +============ + +A mount option is available to create a serverless mount that is only usable +for dynamic lookup. Creating such a mount can be done by, for example: + + mount -t afs none /afs -o dyn + +This creates a mount that just has an empty directory at the root. Attempting +to look up a name in this directory will cause a mountpoint to be created that +looks up a cell of the same name, for example: + + ls /afs/grand.central.org/ + + =============== PROC FILESYSTEM =============== |