[PATCH 08/22] SQUASHME: allow cb_sequence changes to compile without v4.1

[Fred Isaman <iisaman@netapp.com>]

Signed-off-by: Fred Isaman <iisaman@netapp.com>
---
 fs/nfs/callback.h      |   26 ++++++++++++++++++++++++++
 fs/nfs/callback_proc.c |    6 ------
 fs/nfs/callback_xdr.c  |    3 +--
 fs/nfs/internal.h      |    4 ++++
 4 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 89fee05..0b1f3c4 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -8,6 +8,8 @@
 #ifndef __LINUX_FS_NFS_CALLBACK_H
 #define __LINUX_FS_NFS_CALLBACK_H
 
+#include "internal.h"
+
 #define NFS4_CALLBACK 0x40000000
 #define NFS4_CALLBACK_XDRSIZE 2048
 #define NFS4_CALLBACK_BUFSIZE (1024 + NFS4_CALLBACK_XDRSIZE)
@@ -158,6 +160,30 @@ extern unsigned nfs4_callback_layoutrecall(
 	struct cb_layoutrecallargs *args,
 	void *dummy, struct cb_process_state *cps);
 
+static inline void put_session_client(struct nfs4_session *session)
+{
+	if (session)  /* matched by cb_sequence find_client_with_session */
+		nfs_put_client(session->clp);
+}
+
+static inline struct nfs_client *
+find_client_from_cps(struct cb_process_state *cps, struct sockaddr *addr)
+{
+	return cps->session ? cps->session->clp : nfs_find_client(addr, 4);
+}
+
+#else
+
+static inline struct nfs_client *
+find_client_from_cps(struct cb_process_state *cps, struct sockaddr *addr)
+{
+	return nfs_find_client(addr, 4);
+}
+
+static inline void put_session_client(struct nfs4_session *session)
+{
+}
+
 #endif /* CONFIG_NFS_V4_1 */
 
 extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 2e62155..d02997a 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -21,12 +21,6 @@
 #define NFSDBG_FACILITY NFSDBG_CALLBACK
 #endif
 
-static struct nfs_client *
-find_client_from_cps(struct cb_process_state *cps, struct sockaddr *addr)
-{
-	return cps->session ? cps->session->clp : nfs_find_client(addr, 4);
-}
-
 __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
 			     struct cb_getattrres *res,
 			     struct cb_process_state *cps)
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 1650ab0..01688ce 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -770,8 +770,7 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
 
 	*hdr_res.status = status;
 	*hdr_res.nops = htonl(nops);
-	if (cps.session) /* matched by cb_sequence find_client_with_session */
-		nfs_put_client(cps.session->clp);
+	put_session_client(cps.session);
 	dprintk("%s: done, status = %u\n", __func__, ntohl(status));
 	return rpc_success;
 }
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 755e555..6f14089 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -2,6 +2,8 @@
  * NFS internal definitions
  */
 
+#ifndef __LINUX_FS_NFS_INTERNAL_H
+#define __LINUX_FS_NFS_INTERNAL_H
 #include "nfs4_fs.h"
 #include <linux/mount.h>
 #include <linux/security.h>
@@ -415,3 +417,5 @@ static inline int nfs_restart_rpc(struct rpc_task *task, const struct nfs_client
 		return rpc_restart_call_prepare(task);
 	return rpc_restart_call(task);
 }
+
+#endif /* __LINUX_FS_NFS_INTERNAL_H */
-- 
1.7.2.1