[2/5] NFS implement v4.0 callback_ident

Commit Message

Andy Adamson Nov. 30, 2010, 8:31 p.m. UTC

None

Patch

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6a653ff..a241957 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3461,6 +3461,8 @@  do_state_recovery:
 	return -EAGAIN;
 }
 
+static u32 current_cb_ident = 1;
+
 int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
 		unsigned short port, struct rpc_cred *cred,
 		struct nfs4_setclientid_res *res)
@@ -3469,6 +3471,7 @@  int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
 	struct nfs4_setclientid setclientid = {
 		.sc_verifier = &sc_verifier,
 		.sc_prog = program,
+		.sc_cb_ident = current_cb_ident++,
 	};
 	struct rpc_message msg = {
 		.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETCLIENTID],
@@ -3513,6 +3516,8 @@  int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
 			if (++clp->cl_id_uniquifier == 0)
 				break;
 	}
+	if (status == NFS_OK)
+		res->cb_ident = setclientid.sc_cb_ident;
 	return status;
 }
 
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index f575a31..fe61422 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -79,6 +79,7 @@  int nfs4_init_clientid(struct nfs_client *clp, struct rpc_cred *cred)
 	if (status != 0)
 		goto out;
 	clp->cl_clientid = clid.clientid;
+	clp->cl_cb_ident = clid.cb_ident;
 	nfs4_schedule_state_renewal(clp);
 out:
 	return status;
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 452d964..1eaa054 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -71,6 +71,7 @@  struct nfs_client {
 	 */
 	char			cl_ipaddr[48];
 	unsigned char		cl_id_uniquifier;
+	u32			cl_cb_ident;	/* v4.0 callback identifier */
 	const struct nfs4_minor_version_ops *cl_mvops;
 #endif /* CONFIG_NFS_V4 */
 
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 80f0719..24e77a6 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -868,6 +868,7 @@  struct nfs4_setclientid {
 struct nfs4_setclientid_res {
 	u64				clientid;
 	nfs4_verifier			confirm;
+	u32				cb_ident;
 };
 
 struct nfs4_statfs_arg {