diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/filesystems/afs.txt | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/Documentation/filesystems/afs.txt b/Documentation/filesystems/afs.txt index c5254f6d234d..8c6ea7b41048 100644 --- a/Documentation/filesystems/afs.txt +++ b/Documentation/filesystems/afs.txt @@ -11,7 +11,7 @@ Contents: - Proc filesystem. - The cell database. - Security. - - Examples. + - The @sys substitution. ======== @@ -230,3 +230,29 @@ If a file is opened with a particular key and then the file descriptor is passed to a process that doesn't have that key (perhaps over an AF_UNIX socket), then the operations on the file will be made with key that was used to open the file. + + +===================== +THE @SYS SUBSTITUTION +===================== + +The list of up to 16 @sys substitutions for the current network namespace can +be configured by writing a list to /proc/fs/afs/sysname: + + [root@andromeda ~]# echo foo amd64_linux_26 >/proc/fs/afs/sysname + +or cleared entirely by writing an empty list: + + [root@andromeda ~]# echo >/proc/fs/afs/sysname + +The current list for current network namespace can be retrieved by: + + [root@andromeda ~]# cat /proc/fs/afs/sysname + foo + amd64_linux_26 + +When @sys is being substituted for, each element of the list is tried in the +order given. + +By default, the list will contain one item that conforms to the pattern +"<arch>_linux_26", amd64 being the name for x86_64. |