switch procfs to umode_t use

both proc_dir_entry ->mode and populating functions

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 851ba3d..65054d3 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -101,7 +101,7 @@
 struct pid_entry {
 	char *name;
 	int len;
-	mode_t mode;
+	umode_t mode;
 	const struct inode_operations *iop;
 	const struct file_operations *fop;
 	union proc_op op;