percpu: remove percpu_xxx() functions

Remove percpu_xxx serial functions, all of them were replaced by
this_cpu_xxx or __this_cpu_xxx serial functions

Signed-off-by: Alex Shi <alex.shi@intel.com>
Acked-by: Christoph Lameter <cl@gentwo.org>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

2 files changed, 6 insertions, 64 deletions

diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index 967ee3be5c0a..d9b8e3f7f42a 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -351,7 +351,7 @@ do {									\
 })
 
 /*
- * percpu_read() makes gcc load the percpu variable every time it is
+ * this_cpu_read() makes gcc load the percpu variable every time it is
  * accessed while this_cpu_read_stable() allows the value to be cached.
  * this_cpu_read_stable() is more efficient and can be used if its value
  * is guaranteed to be valid across cpus.  The current users include
@@ -359,15 +359,7 @@ do {									\
  * per-thread variables implemented as per-cpu variables and thus
  * stable for the duration of the respective task.
  */
-#define percpu_read(var)                percpu_from_op("mov", var, "m" (var))
 #define this_cpu_read_stable(var)       percpu_from_op("mov", var, "p" (&(var)))
-#define percpu_write(var, val)          percpu_to_op("mov", var, val)
-#define percpu_add(var, val)            percpu_add_op(var, val)
-#define percpu_sub(var, val)            percpu_add_op(var, -(val))
-#define percpu_and(var, val)            percpu_to_op("and", var, val)
-#define percpu_or(var, val)             percpu_to_op("or", var, val)
-#define percpu_xor(var, val)            percpu_to_op("xor", var, val)
-#define percpu_inc(var)         percpu_unary_op("inc", var)
 
 #define __this_cpu_read_1(pcp)          percpu_from_op("mov", (pcp), "m"(pcp))
 #define __this_cpu_read_2(pcp)          percpu_from_op("mov", (pcp), "m"(pcp))
@@ -512,7 +504,11 @@ static __always_inline int x86_this_cpu_constant_test_bit(unsigned int nr,
 {
         unsigned long __percpu *a = (unsigned long *)addr + nr / BITS_PER_LONG;
 
-        return ((1UL << (nr % BITS_PER_LONG)) & percpu_read(*a)) != 0;
+#ifdef CONFIG_X86_64
+        return ((1UL << (nr % BITS_PER_LONG)) & __this_cpu_read_8(*a)) != 0;
+#else
+        return ((1UL << (nr % BITS_PER_LONG)) & __this_cpu_read_4(*a)) != 0;
+#endif
 }
 
 static inline int x86_this_cpu_variable_test_bit(int nr,
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 21638ae14e07..2b9f82c037c9 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -166,60 +166,6 @@ extern phys_addr_t per_cpu_ptr_to_phys(void *addr);
         (typeof(type) __percpu *)__alloc_percpu(sizeof(type), __alignof__(type))
 
 /*
- * Optional methods for optimized non-lvalue per-cpu variable access.
- *
- * @var can be a percpu variable or a field of it and its size should
- * equal char, int or long.  percpu_read() evaluates to a lvalue and
- * all others to void.
- *
- * These operations are guaranteed to be atomic.
- * The generic versions disable interrupts.  Archs are
- * encouraged to implement single-instruction alternatives which don't
- * require protection.
- */
-#ifndef percpu_read
-# define percpu_read(var)                                               \
-  ({                                                                    \
-        typeof(var) *pr_ptr__ = &(var);                                 \
-        typeof(var) pr_ret__;                                           \
-        pr_ret__ = get_cpu_var(*pr_ptr__);                              \
-        put_cpu_var(*pr_ptr__);                                         \
-        pr_ret__;                                                       \
-  })
-#endif
-
-#define __percpu_generic_to_op(var, val, op)                            \
-do {                                                                    \
-        typeof(var) *pgto_ptr__ = &(var);                               \
-        get_cpu_var(*pgto_ptr__) op val;                                \
-        put_cpu_var(*pgto_ptr__);                                       \
-} while (0)
-
-#ifndef percpu_write
-# define percpu_write(var, val)         __percpu_generic_to_op(var, (val), =)
-#endif
-
-#ifndef percpu_add
-# define percpu_add(var, val)           __percpu_generic_to_op(var, (val), +=)
-#endif
-
-#ifndef percpu_sub
-# define percpu_sub(var, val)           __percpu_generic_to_op(var, (val), -=)
-#endif
-
-#ifndef percpu_and
-# define percpu_and(var, val)           __percpu_generic_to_op(var, (val), &=)
-#endif
-
-#ifndef percpu_or
-# define percpu_or(var, val)            __percpu_generic_to_op(var, (val), |=)
-#endif
-
-#ifndef percpu_xor
-# define percpu_xor(var, val)           __percpu_generic_to_op(var, (val), ^=)
-#endif
-
-/*
  * Branching function to split up a function into a set of functions that
  * are called for different scalar sizes of the objects handled.
  */