NFS: Fix NFS4 callback up/down prototypes
Make the nfs_callback_up()/down() prototypes just do nothing if NFS4 is not
enabled. Also make the down function void type since we can't really do
anything if it fails.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index d6c4bae..b1f7dc4 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -149,10 +149,8 @@
/*
* Kill the server process if it is not already up.
*/
-int nfs_callback_down(void)
+void nfs_callback_down(void)
{
- int ret = 0;
-
lock_kernel();
mutex_lock(&nfs_callback_mutex);
nfs_callback_info.users--;
@@ -164,7 +162,6 @@
} while (wait_for_completion_timeout(&nfs_callback_info.stopped, 5*HZ) == 0);
mutex_unlock(&nfs_callback_mutex);
unlock_kernel();
- return ret;
}
static int nfs_callback_authenticate(struct svc_rqst *rqstp)
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index b252e7f..5676163d 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -62,8 +62,13 @@
extern unsigned nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
extern unsigned nfs4_callback_recall(struct cb_recallargs *args, void *dummy);
+#ifdef CONFIG_NFS_V4
extern int nfs_callback_up(void);
-extern int nfs_callback_down(void);
+extern void nfs_callback_down(void);
+#else
+#define nfs_callback_up() (0)
+#define nfs_callback_down() do {} while(0)
+#endif
extern unsigned int nfs_callback_set_tcpport;
extern unsigned short nfs_callback_tcpport;