[PATCH] sysctl: remove support for directory strategy routines

parse_table has support for calling a strategy routine when descending into a
directory.  To date no one has used this functionality and the /proc/sys
interface has no analog to it.

So no one is using this functionality kill it and make the binary sysctl code
easier to follow.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

kernel/sysctl.c

@@ -1175,14 +1175,6 @@ static int parse_table(int __user *name, int nlen,
 			if (table->child) {
 				if (ctl_perm(table, 001))
 					return -EPERM;
-				if (table->strategy) {
-					error = table->strategy(
-						table, name, nlen,
-						oldval, oldlenp,
-						newval, newlen);
-					if (error)
-						return error;
-				}
 				name++;
 				nlen--;
 				table = table->child;