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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2008-08-17 12:50:36 -0700
committerIngo Molnar <mingo@elte.hu>2008-08-18 09:45:22 +0200
commitded00a56e99555c3f4000ef3eebfd5fe0d574565 (patch)
tree384e81f0780de2fb89a82dd341cb24ce2f4364cf /kernel
parentcd95851785bcfe95fdf73689e8ecb5a1c5959231 (diff)
downloadblackbird-op-linux-ded00a56e99555c3f4000ef3eebfd5fe0d574565.tar.gz
blackbird-op-linux-ded00a56e99555c3f4000ef3eebfd5fe0d574565.zip
rcu: remove redundant ACCESS_ONCE definition from rcupreempt.c
Remove the redundant definition of ACCESS_ONCE() from rcupreempt.c in favor of the one in compiler.h. Also merge the comment header from rcupreempt.c's definition into that in compiler.h. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/rcupreempt.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c
index 27827931ca0d..ca4bbbe04aa4 100644
--- a/kernel/rcupreempt.c
+++ b/kernel/rcupreempt.c
@@ -59,14 +59,6 @@
#include <linux/rcupreempt_trace.h>
/*
- * Macro that prevents the compiler from reordering accesses, but does
- * absolutely -nothing- to prevent CPUs from reordering. This is used
- * only to mediate communication between mainline code and hardware
- * interrupt and NMI handlers.
- */
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
-
-/*
* PREEMPT_RCU data structures.
*/
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