rcu: Fix qlen_lazy breakage

Commit d8169d4c (Make __kfree_rcu() less dependent on compiler choices)
created a macro out of an inline function in order to avoid build
breakage for certain combinations of gcc flags.  Unfortunately, it also
converted a kfree_call_rcu() to a call_rcu(), which made the rcu_data
structure's ->qlen_lazy field lose counts.  This commit therefore changes
the call_rcu() back to kfree_call_rcu().

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 9cac722..46d45e0 100644 (file)
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -935,7 +935,7 @@ void __kfree_rcu(struct rcu_head *head, unsigned long offset)
 #define __kfree_rcu(head, offset) \
        do { \
                BUILD_BUG_ON(!__is_kfree_rcu_offset(offset)); \
-               call_rcu(head, (void (*)(struct rcu_head *))(unsigned long)(offset)); \
+               kfree_call_rcu(head, (void (*)(struct rcu_head *))(unsigned long)(offset)); \
        } while (0)
 
 /**