[PATCH] just rename call_rcu_bh instead of making it a macro

[Steven Rostedt <rostedt@goodmis.org>]

Seems that I found a box that has a config that passes call_rcu_bh as a
function pointer (see net/sctp/sm_make_chunk.c), so declaring the
call_rcu_bh has a macro function isn't good enough.

This patch makes it just another name of call_rcu for rcupreempt.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

Index: linux-2.6.23-rc8-rt1/include/linux/rcupreempt.h
===================================================================
--- linux-2.6.23-rc8-rt1.orig/include/linux/rcupreempt.h
+++ linux-2.6.23-rc8-rt1/include/linux/rcupreempt.h
@@ -42,9 +42,14 @@
 #include <linux/cpumask.h>
 #include <linux/seqlock.h>
 
-#define rcu_qsctr_inc(cpu)
-#define rcu_bh_qsctr_inc(cpu)
-#define call_rcu_bh(head, rcu) call_rcu(head, rcu)
+#define rcu_qsctr_inc(cpu)	do { } while (0)
+#define rcu_bh_qsctr_inc(cpu)	do { } while (0)
+/*
+ * Someone might want to pass call_rcu_bh as a function pointer.
+ * So this needs to just be a rename and not a macro function.
+ *  (no parentheses)
+ */
+#define call_rcu_bh		 call_rcu
 
 extern void __rcu_read_lock(void);
 extern void __rcu_read_unlock(void);


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