[LIB]: Drop the pcounter itself.

The knock-out. The pcounter abstraction is not used any longer in the
kernel.

Not sure whether this should go via netdev tree, but as far as I
remember it was added via this one, and besides Eric thinks that
Andrew shouldn't mind this.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 74 deletions

diff --git a/include/linux/pcounter.h b/include/linux/pcounter.h
deleted file mode 100644
index a82d9f2628c..00000000000
--- a/include/linux/pcounter.h
+++ /dev/null
@@ -1,74 +0,0 @@
-#ifndef __LINUX_PCOUNTER_H
-#define __LINUX_PCOUNTER_H
-/*
- * Using a dynamic percpu 'int' variable has a cost :
- * 1) Extra dereference
- * Current per_cpu_ptr() implementation uses an array per 'percpu variable'.
- * 2) memory cost of NR_CPUS*(32+sizeof(void *)) instead of num_possible_cpus()*4
- *
- * This pcounter implementation is an abstraction to be able to use
- * either a static or a dynamic per cpu variable.
- * One dynamic per cpu variable gets a fast & cheap implementation, we can
- * change pcounter implementation too.
- */
-struct pcounter {
-#ifdef CONFIG_SMP
-        void            (*add)(struct pcounter *self, int inc);
-        int             (*getval)(const struct pcounter *self, int cpu);
-        int             *per_cpu_values;
-#else
-        int             val;
-#endif
-};
-
-#ifdef CONFIG_SMP
-#include <linux/percpu.h>
-
-#define DEFINE_PCOUNTER(NAME)                                           \
-static DEFINE_PER_CPU(int, NAME##_pcounter_values);                     \
-static void NAME##_pcounter_add(struct pcounter *self, int val)         \
-{                                                                       \
-       __get_cpu_var(NAME##_pcounter_values) += val;                    \
-}                                                                       \
-static int NAME##_pcounter_getval(const struct pcounter *self, int cpu) \
-{                                                                       \
-        return per_cpu(NAME##_pcounter_values, cpu);                    \
-}                                                                       \
-
-#define PCOUNTER_MEMBER_INITIALIZER(NAME, MEMBER)               \
-        MEMBER = {                                              \
-                .add    = NAME##_pcounter_add,                  \
-                .getval = NAME##_pcounter_getval,               \
-        }
-
-
-static inline void pcounter_add(struct pcounter *self, int inc)
-{
-        self->add(self, inc);
-}
-
-extern int pcounter_getval(const struct pcounter *self);
-extern int pcounter_alloc(struct pcounter *self);
-extern void pcounter_free(struct pcounter *self);
-
-
-#else /* CONFIG_SMP */
-
-static inline void pcounter_add(struct pcounter *self, int inc)
-{
-        self->val += inc;
-}
-
-static inline int pcounter_getval(const struct pcounter *self)
-{
-        return self->val;
-}
-
-#define DEFINE_PCOUNTER(NAME)
-#define PCOUNTER_MEMBER_INITIALIZER(NAME, MEMBER)
-#define pcounter_alloc(self) 0
-#define pcounter_free(self)
-
-#endif /* CONFIG_SMP */
-
-#endif /* __LINUX_PCOUNTER_H */