[PATCH] zoned-vm-counters: remove read_page_state()

No callers.

Cc: Christoph Lameter <clameter@engr.sgi.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

include/linux/vmstat.h

@@ -70,13 +70,9 @@ struct page_state {
 };
 
 extern void get_full_page_state(struct page_state *ret);
-extern unsigned long read_page_state_offset(unsigned long offset);
 extern void mod_page_state_offset(unsigned long offset, unsigned long delta);
 extern void __mod_page_state_offset(unsigned long offset, unsigned long delta);
 
-#define read_page_state(member) \
-	read_page_state_offset(offsetof(struct page_state, member))
-
 #define mod_page_state(member, delta)	\
 	mod_page_state_offset(offsetof(struct page_state, member), (delta))
 

mm/vmstat.c

@@ -52,20 +52,6 @@ void get_full_page_state(struct page_state *ret)
 	__get_page_state(ret, sizeof(*ret) / sizeof(unsigned long), &mask);
 }
 
-unsigned long read_page_state_offset(unsigned long offset)
-{
-	unsigned long ret = 0;
-	int cpu;
-
-	for_each_online_cpu(cpu) {
-		unsigned long in;
-
-		in = (unsigned long)&per_cpu(page_states, cpu) + offset;
-		ret += *((unsigned long *)in);
-	}
-	return ret;
-}
-
 void __mod_page_state_offset(unsigned long offset, unsigned long delta)
 {
 	void *ptr;