seqfile convert proc_pid_statm

This conversion is just for code cleanliness, uniformity, and general safety.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 7e9f3b6..5540e95 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -563,7 +563,8 @@
 	return do_task_stat(m, ns, pid, task, 1);
 }
 
-int proc_pid_statm(struct task_struct *task, char *buffer)
+int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
+			struct pid *pid, struct task_struct *task)
 {
 	int size = 0, resident = 0, shared = 0, text = 0, lib = 0, data = 0;
 	struct mm_struct *mm = get_task_mm(task);
@@ -572,7 +573,8 @@
 		size = task_statm(mm, &shared, &text, &data, &resident);
 		mmput(mm);
 	}
+	seq_printf(m, "%d %d %d %d %d %d %d\n",
+			size, resident, shared, text, lib, data, 0);
 
-	return sprintf(buffer, "%d %d %d %d %d %d %d\n",
-		       size, resident, shared, text, lib, data, 0);
+	return 0;
 }