1 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index b506936f4ce6..6cb2517bcf75 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -50,19 +50,32 @@ extern unsigned int		nlm_debug;
 #endif
 
 #define dprintk(args...)        dfprintk(FACILITY, ## args)
+#define dprintk_rcu(args...)    dfprintk_rcu(FACILITY, ## args)
 
 #undef ifdebug
 #ifdef RPC_DEBUG                        
 # define ifdebug(fac)           if (unlikely(rpc_debug & RPCDBG_##fac))
+
 # define dfprintk(fac, args...) \
         do { \
                 ifdebug(fac) \
                         printk(KERN_DEFAULT args); \
         } while (0)
+
+# define dfprintk_rcu(fac, args...)     \
+        do { \
+                ifdebug(fac) { \
+                        rcu_read_lock(); \
+                        printk(KERN_DEFAULT args); \
+                        rcu_read_unlock(); \
+                } \
+        } while (0)
+
 # define RPC_IFDEBUG(x)         x
 #else
 # define ifdebug(fac)           if (0)
 # define dfprintk(fac, args...) do ; while (0)
+# define dfprintk_rcu(fac, args...)     do ; while (0)
 # define RPC_IFDEBUG(x)
 #endif