nfsd4: implement backchannel_ctl operation
This operation is mandatory for servers to implement.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/Documentation/filesystems/nfs/nfs41-server.txt b/Documentation/filesystems/nfs/nfs41-server.txt
index 092fad9..f5ddff2 100644
--- a/Documentation/filesystems/nfs/nfs41-server.txt
+++ b/Documentation/filesystems/nfs/nfs41-server.txt
@@ -39,11 +39,6 @@
from a linux client are possible, but we aren't really
conformant with the spec (for example, we don't use kerberos
on the backchannel correctly).
- - Incomplete backchannel support: incomplete backchannel gss
- support and no support for BACKCHANNEL_CTL mean that
- callbacks (hence delegations and layouts) may not be
- available and clients confused by the incomplete
- implementation may fail.
- We do not support SSV, which provides security for shared
client-server state (thus preventing unauthorized tampering
with locks and opens, for example). It is mandatory for
@@ -89,7 +84,7 @@
| | MNI | or OPT) | |
+----------------------+------------+--------------+----------------+
| ACCESS | REQ | | Section 18.1 |
-NS | BACKCHANNEL_CTL | REQ | | Section 18.33 |
+I | BACKCHANNEL_CTL | REQ | | Section 18.33 |
I | BIND_CONN_TO_SESSION | REQ | | Section 18.34 |
| CLOSE | REQ | | Section 18.2 |
| COMMIT | REQ | | Section 18.3 |