From 1e88328111aae3ea408f346763ba9f9bad71f876 Mon Sep 17 00:00:00 2001
From: Matt Mackall <mpm@selenic.com>
Date: Mon, 4 Feb 2008 22:29:07 -0800
Subject: maps4: make page monitoring /proc file optional

Make /proc/ page monitoring configurable

This puts the following files under an embedded config option:

/proc/pid/clear_refs
/proc/pid/smaps
/proc/pid/pagemap
/proc/kpagecount
/proc/kpageflags

[akpm@linux-foundation.org: Kconfig fix]
Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/task_mmu.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'fs/proc/task_mmu.c')

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index bbd9b145051..38338ed98cc 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -337,6 +337,7 @@ const struct file_operations proc_maps_operations = {
  */
 #define PSS_SHIFT 12
 
+#ifdef CONFIG_PROC_PAGE_MONITOR
 struct mem_size_stats
 {
 	struct vm_area_struct *vma;
@@ -717,6 +718,7 @@ const struct file_operations proc_pagemap_operations = {
 	.llseek		= mem_lseek, /* borrow this */
 	.read		= pagemap_read,
 };
+#endif /* CONFIG_PROC_PAGE_MONITOR */
 
 #ifdef CONFIG_NUMA
 extern int show_numa_map(struct seq_file *m, void *v);
-- 
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