From: Andrew Morton <akpm@linux-foundation.org>

fs/proc/task_mmu.c: In function 'pagemap_read':
fs/proc/task_mmu.c:638: warning: implicit declaration of function 'ptrace_may_attach'

Cc: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/proc/task_mmu.c |    1 +
 1 file changed, 1 insertion(+)

diff -puN fs/proc/task_mmu.c~maps2-add-proc-pid-pagemap-interface-fix-fix fs/proc/task_mmu.c
--- a/fs/proc/task_mmu.c~maps2-add-proc-pid-pagemap-interface-fix-fix
+++ a/fs/proc/task_mmu.c
@@ -4,6 +4,7 @@
 #include <linux/seq_file.h>
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
+#include <linux/ptrace.h>
 #include <linux/mempolicy.h>
 
 #include <asm/elf.h>
_