From a8fd18db14cb2fd1f595be9f560fe18efb966774 Mon Sep 17 00:00:00 2001
From: Richard Braun <rbraun@sceen.net>
Date: Sun, 7 Feb 2016 11:57:49 +0100
Subject: Remove kmem map

Now that the slab allocator doesn't use kernel virtual memory any more,
this map has become irrelevant.

* kern/slab.c (KMEM_MAP_SIZE): Remove macro.
(kmem_map_store, kmem_map): Remove variables.
(slab_init): Remove call kmem_submap.
* kern/slab.h (kmem_map): Remove extern declaration.
---
 kern/slab.c | 13 -------------
 kern/slab.h |  5 -----
 2 files changed, 18 deletions(-)

diff --git a/kern/slab.c b/kern/slab.c
index d18c10b4..e5e44f40 100644
--- a/kern/slab.c
+++ b/kern/slab.c
@@ -150,11 +150,6 @@
  */
 #define KMEM_REDZONE_BYTE 0xbb
 
-/*
- * Size of the VM submap from which default backend functions allocate.
- */
-#define KMEM_MAP_SIZE (128 * 1024 * 1024)
-
 /*
  * Shift for the first kalloc cache size.
  */
@@ -263,12 +258,6 @@ static struct list kmem_cache_list;
 static unsigned int kmem_nr_caches;
 static simple_lock_data_t __attribute__((used)) kmem_cache_list_lock;
 
-/*
- * VM submap for slab caches.
- */
-static struct vm_map kmem_map_store;
-vm_map_t kmem_map = &kmem_map_store;
-
 /*
  * Time of the last memory reclaim, in clock ticks.
  */
@@ -1239,8 +1228,6 @@ void slab_init(void)
     size_t i, size;
 #endif /* SLAB_USE_CPU_POOLS */
 
-    kmem_submap(kmem_map, kernel_map, &min, &max, KMEM_MAP_SIZE, FALSE);
-
 #if SLAB_USE_CPU_POOLS
     for (i = 0; i < ARRAY_SIZE(kmem_cpu_pool_types); i++) {
         cpu_pool_type = &kmem_cpu_pool_types[i];
diff --git a/kern/slab.h b/kern/slab.h
index c50efd3d..51f29a90 100644
--- a/kern/slab.h
+++ b/kern/slab.h
@@ -192,11 +192,6 @@ struct kmem_cache {
 typedef struct kmem_cache *kmem_cache_t;
 #define KMEM_CACHE_NULL ((kmem_cache_t) 0)
 
-/*
- * VM submap for slab allocations.
- */
-extern vm_map_t kmem_map;
-
 /*
  * Cache initialization flags.
  */
-- 
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