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authorDavid Woodhouse <David.Woodhouse@intel.com>2010-10-30 13:35:11 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-10-30 13:35:11 +0200
commit67577927e8d7a1f4b09b4992df640eadc6aacb36 (patch)
tree2e9efe6b5745965faf0dcc084d4613d9356263f9 /include/asm-generic/percpu.h
parentMTD: Fix wrong check register_blkdev return value (diff)
parentMerge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 (diff)
downloadlinux-67577927e8d7a1f4b09b4992df640eadc6aacb36.tar.xz
linux-67577927e8d7a1f4b09b4992df640eadc6aacb36.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Conflicts: drivers/mtd/mtd_blkdevs.c Merge Grant's device-tree bits so that we can apply the subsequent fixes. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include/asm-generic/percpu.h')
-rw-r--r--include/asm-generic/percpu.h14
1 files changed, 9 insertions, 5 deletions
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 08923b684768..d17784ea37ff 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -55,14 +55,18 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
*/
#define per_cpu(var, cpu) \
(*SHIFT_PERCPU_PTR(&(var), per_cpu_offset(cpu)))
-#define __get_cpu_var(var) \
- (*SHIFT_PERCPU_PTR(&(var), my_cpu_offset))
-#define __raw_get_cpu_var(var) \
- (*SHIFT_PERCPU_PTR(&(var), __my_cpu_offset))
-#define this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, my_cpu_offset)
+#ifndef __this_cpu_ptr
#define __this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset)
+#endif
+#ifdef CONFIG_DEBUG_PREEMPT
+#define this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, my_cpu_offset)
+#else
+#define this_cpu_ptr(ptr) __this_cpu_ptr(ptr)
+#endif
+#define __get_cpu_var(var) (*this_cpu_ptr(&(var)))
+#define __raw_get_cpu_var(var) (*__this_cpu_ptr(&(var)))
#ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
extern void setup_per_cpu_areas(void);