From: Tejun Heo <tj@kernel.org>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"'linux-ia64@vger.kernel.org'" <linux-ia64@vger.kernel.org>,
"Luck, Tony" <tony.luck@intel.com>,
Christoph Lameter <cl@linux-foundation.org>
Subject: [PATCH percpu#for-next] ia64: add sparse annotation to __ia64_per_cpu_var()
Date: Thu, 29 Oct 2009 14:03:31 +0000 [thread overview]
Message-ID: <4AE9A0B3.4010305@kernel.org> (raw)
ia64 has its own optimized percpu accessor - __ia64_per_cpu_var().
Add percpu sparse annotations to it.
Signed-off-by: Tejun Heo <tj@kernel.org>
---
arch/ia64/include/asm/percpu.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
Index: work/arch/ia64/include/asm/percpu.h
=================================--- work.orig/arch/ia64/include/asm/percpu.h
+++ work/arch/ia64/include/asm/percpu.h
@@ -39,7 +39,10 @@ extern void *per_cpu_init(void);
* On the positive side, using __ia64_per_cpu_var() instead of __get_cpu_var() is slightly
* more efficient.
*/
-#define __ia64_per_cpu_var(var) var
+#define __ia64_per_cpu_var(var) (*({ \
+ __verify_pcpu_ptr(&(var)); \
+ ((typeof(var) __kernel __force *)&(var)); \
+}))
#include <asm-generic/percpu.h>
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"'linux-ia64@vger.kernel.org'" <linux-ia64@vger.kernel.org>,
"Luck, Tony" <tony.luck@intel.com>,
Christoph Lameter <cl@linux-foundation.org>
Subject: [PATCH percpu#for-next] ia64: add sparse annotation to __ia64_per_cpu_var()
Date: Thu, 29 Oct 2009 15:03:31 +0100 [thread overview]
Message-ID: <4AE9A0B3.4010305@kernel.org> (raw)
ia64 has its own optimized percpu accessor - __ia64_per_cpu_var().
Add percpu sparse annotations to it.
Signed-off-by: Tejun Heo <tj@kernel.org>
---
arch/ia64/include/asm/percpu.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
Index: work/arch/ia64/include/asm/percpu.h
===================================================================
--- work.orig/arch/ia64/include/asm/percpu.h
+++ work/arch/ia64/include/asm/percpu.h
@@ -39,7 +39,10 @@ extern void *per_cpu_init(void);
* On the positive side, using __ia64_per_cpu_var() instead of __get_cpu_var() is slightly
* more efficient.
*/
-#define __ia64_per_cpu_var(var) var
+#define __ia64_per_cpu_var(var) (*({ \
+ __verify_pcpu_ptr(&(var)); \
+ ((typeof(var) __kernel __force *)&(var)); \
+}))
#include <asm-generic/percpu.h>
next reply other threads:[~2009-10-29 14:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-29 14:03 Tejun Heo [this message]
2009-10-29 14:03 ` [PATCH percpu#for-next] ia64: add sparse annotation to __ia64_per_cpu_var() Tejun Heo
2009-10-29 14:49 ` [PATCH percpu#for-next] ia64: add sparse annotation to Christoph Lameter
2009-10-29 18:44 ` [PATCH percpu#for-next] ia64: add sparse annotation to __ia64_per_cpu_var() Christoph Lameter
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