From edebe3b8a33eb989d593f05d5442220a10c7a0cb Mon Sep 17 00:00:00 2001
From: jsg <jsg@openbsd.org>
Date: Tue, 23 Feb 2021 11:22:20 +0000
Subject: [PATCH] remove unused uvm_mapent_bias()

ok mpi@
---
 sys/uvm/uvm_map.c | 36 +-----------------------------------
 1 file changed, 1 insertion(+), 35 deletions(-)

diff --git a/sys/uvm/uvm_map.c b/sys/uvm/uvm_map.c
index 931504a7417..a9661fb6421 100644
--- a/sys/uvm/uvm_map.c
+++ b/sys/uvm/uvm_map.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_map.c,v 1.270 2021/01/19 13:21:36 mpi Exp $	*/
+/*	$OpenBSD: uvm_map.c,v 1.271 2021/02/23 11:22:20 jsg Exp $	*/
 /*	$NetBSD: uvm_map.c,v 1.86 2000/11/27 08:40:03 chs Exp $	*/
 
 /*
@@ -183,7 +183,6 @@ void			 uvm_map_splitentry(struct vm_map*,
 			    struct vm_map_entry*, struct vm_map_entry*,
 			    vaddr_t);
 vsize_t			 uvm_map_boundary(struct vm_map*, vaddr_t, vaddr_t);
-int			 uvm_mapent_bias(struct vm_map*, struct vm_map_entry*);
 
 /*
  * uvm_vmspace_fork helper functions.
@@ -5377,39 +5376,6 @@ out:
 	return error;
 }
 
-/*
- * Determine allocation bias.
- *
- * Returns 1 if we should bias to high addresses, -1 for a bias towards low
- * addresses, or 0 for no bias.
- * The bias mechanism is intended to avoid clashing with brk() and stack
- * areas.
- */
-int
-uvm_mapent_bias(struct vm_map *map, struct vm_map_entry *entry)
-{
-	vaddr_t start, end;
-
-	start = VMMAP_FREE_START(entry);
-	end = VMMAP_FREE_END(entry);
-
-	/* Stay at the top of brk() area. */
-	if (end >= map->b_start && start < map->b_end)
-		return 1;
-	/* Stay at the far end of the stack area. */
-	if (end >= map->s_start && start < map->s_end) {
-#ifdef MACHINE_STACK_GROWS_UP
-		return 1;
-#else
-		return -1;
-#endif
-	}
-
-	/* No bias, this area is meant for us. */
-	return 0;
-}
-
-
 boolean_t
 vm_map_lock_try_ln(struct vm_map *map, char *file, int line)
 {
-- 
2.20.1