nfs41: add support for callback with RPC version number 4
The NFSv4.1 spec-29 (18.36.3) says that the server MUST use an ONC RPC
(program) version number equal to 4 in callbacks sent to the client.
For now we allow both versions 1 and 4.
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index e66ec5d..73ab2203 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -385,6 +385,7 @@
*/
static struct svc_version *nfs4_callback_version[] = {
[1] = &nfs4_callback_version1,
+ [4] = &nfs4_callback_version4,
};
static struct svc_stat nfs4_callback_stats;
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 76b0aa0f..0fda5e6 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -718,3 +718,10 @@
.vs_dispatch = NULL,
};
+struct svc_version nfs4_callback_version4 = {
+ .vs_vers = 4,
+ .vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
+ .vs_proc = nfs4_callback_procedures1,
+ .vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
+ .vs_dispatch = NULL,
+};
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index a6f7b6c..7b890ba 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -156,6 +156,7 @@
/* callback_xdr.c */
extern struct svc_version nfs4_callback_version1;
+extern struct svc_version nfs4_callback_version4;
/* pagelist.c */
extern int __init nfs_init_nfspagecache(void);
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 5c77401..0d25a82 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -290,6 +290,7 @@
/* callback_xdr.c */
extern struct svc_version nfs4_callback_version1;
+extern struct svc_version nfs4_callback_version4;
#else
