NFSv4.x: Add kernel parameter to control the callback server
Add support for the kernel parameter nfs.callback_nr_threads to set
the number of threads that will be assigned to the callback channel.
Add support for the kernel parameter nfs.nfs.max_session_cb_slots
to set the maximum size of the callback channel slot table.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index a4f4d69..391dddd 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2420,6 +2420,11 @@
nfsrootdebug [NFS] enable nfsroot debugging messages.
See Documentation/filesystems/nfs/nfsroot.txt.
+ nfs.callback_nr_threads=
+ [NFSv4] set the total number of threads that the
+ NFS client will assign to service NFSv4 callback
+ requests.
+
nfs.callback_tcpport=
[NFS] set the TCP port on which the NFSv4 callback
channel should listen.
@@ -2443,6 +2448,13 @@
of returning the full 64-bit number.
The default is to return 64-bit inode numbers.
+ nfs.max_session_cb_slots=
+ [NFSv4.1] Sets the maximum number of session
+ slots the client will assign to the callback
+ channel. This determines the maximum number of
+ callbacks the client will process in parallel for
+ a particular server.
+
nfs.max_session_slots=
[NFSv4.1] Sets the maximum number of session slots
the client will attempt to negotiate with the server.