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authorTejun Heo <tj@kernel.org>2010-12-17 15:47:04 +0100
committerTejun Heo <tj@kernel.org>2010-12-17 16:13:22 +0100
commit403047754cf690b012369b8fb563b738b88086e6 (patch)
treed784465cb02ea3898094ad5aa83566fecb6c7046 /include/linux/percpu.h
parent8f1d97c79eb65de1d05799d6b81d79cd94169114 (diff)
downloadop-kernel-dev-403047754cf690b012369b8fb563b738b88086e6.zip
op-kernel-dev-403047754cf690b012369b8fb563b738b88086e6.tar.gz
percpu,x86: relocate this_cpu_add_return() and friends
- include/linux/percpu.h: this_cpu_add_return() and friends were located next to __this_cpu_add_return(). However, the overall organization is to first group by preemption safeness. Relocate this_cpu_add_return() and friends to preemption-safe area. - arch/x86/include/asm/percpu.h: Relocate percpu_add_return_op() after other more basic operations. Relocate [__]this_cpu_add_return_8() so that they're first grouped by preemption safeness. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Christoph Lameter <cl@linux.com>
Diffstat (limited to 'include/linux/percpu.h')
-rw-r--r--include/linux/percpu.h60
1 files changed, 30 insertions, 30 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 4d593de..3484e88 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -417,6 +417,36 @@ do { \
# define this_cpu_xor(pcp, val) __pcpu_size_call(this_cpu_or_, (pcp), (val))
#endif
+#define _this_cpu_generic_add_return(pcp, val) \
+({ \
+ typeof(pcp) ret__; \
+ preempt_disable(); \
+ __this_cpu_add(pcp, val); \
+ ret__ = __this_cpu_read(pcp); \
+ preempt_enable(); \
+ ret__; \
+})
+
+#ifndef this_cpu_add_return
+# ifndef this_cpu_add_return_1
+# define this_cpu_add_return_1(pcp, val) _this_cpu_generic_add_return(pcp, val)
+# endif
+# ifndef this_cpu_add_return_2
+# define this_cpu_add_return_2(pcp, val) _this_cpu_generic_add_return(pcp, val)
+# endif
+# ifndef this_cpu_add_return_4
+# define this_cpu_add_return_4(pcp, val) _this_cpu_generic_add_return(pcp, val)
+# endif
+# ifndef this_cpu_add_return_8
+# define this_cpu_add_return_8(pcp, val) _this_cpu_generic_add_return(pcp, val)
+# endif
+# define this_cpu_add_return(pcp, val) __pcpu_size_call_return2(this_cpu_add_return_, pcp, val)
+#endif
+
+#define this_cpu_sub_return(pcp, val) this_cpu_add_return(pcp, -(val))
+#define this_cpu_inc_return(pcp) this_cpu_add_return(pcp, 1)
+#define this_cpu_dec_return(pcp) this_cpu_add_return(pcp, -1)
+
/*
* Generic percpu operations that do not require preemption handling.
* Either we do not care about races or the caller has the
@@ -544,36 +574,6 @@ do { \
# define __this_cpu_xor(pcp, val) __pcpu_size_call(__this_cpu_xor_, (pcp), (val))
#endif
-#define _this_cpu_generic_add_return(pcp, val) \
-({ \
- typeof(pcp) ret__; \
- preempt_disable(); \
- __this_cpu_add(pcp, val); \
- ret__ = __this_cpu_read(pcp); \
- preempt_enable(); \
- ret__; \
-})
-
-#ifndef this_cpu_add_return
-# ifndef this_cpu_add_return_1
-# define this_cpu_add_return_1(pcp, val) _this_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef this_cpu_add_return_2
-# define this_cpu_add_return_2(pcp, val) _this_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef this_cpu_add_return_4
-# define this_cpu_add_return_4(pcp, val) _this_cpu_generic_add_return(pcp, val)
-# endif
-# ifndef this_cpu_add_return_8
-# define this_cpu_add_return_8(pcp, val) _this_cpu_generic_add_return(pcp, val)
-# endif
-# define this_cpu_add_return(pcp, val) __pcpu_size_call_return2(this_cpu_add_return_, pcp, val)
-#endif
-
-#define this_cpu_sub_return(pcp, val) this_cpu_add_return(pcp, -(val))
-#define this_cpu_inc_return(pcp) this_cpu_add_return(pcp, 1)
-#define this_cpu_dec_return(pcp) this_cpu_add_return(pcp, -1)
-
#define __this_cpu_generic_add_return(pcp, val) \
({ \
__this_cpu_add(pcp, val); \
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