From 2d2da4aad582bf1d63554cd9496285787db3e66e Mon Sep 17 00:00:00 2001
From: Richard Braun <rbraun@sceen.net>
Date: Sat, 7 Jul 2012 07:42:24 +0000
Subject: Merge kalloc_map into kmem_map

* ipc/ipc_table.c: Add #include <kern/slab.h>.
(ipc_table_alloc): Use kmem_map instead of kalloc_map when allocating
a table.
(ipc_table_realloc): Likewise for reallocation.
(ipc_table_free): Likewise for release.
* kern/kalloc.h (kalloc_map): Remove declaration.
* kern/slab.c (KMEM_MAP_SIZE): Increase to 128 MiB.
(KALLOC_MAP_SIZE): Remove macro.
(kalloc_map_store): Remove variable.
(kalloc_map): Likewise.
(kalloc_pagealloc): Use kmem_map instead of kalloc_map for general
purpose allocations.
(kalloc_pagefree): Likewise.
(kalloc_init): Remove the creation of kalloc_map.
---
 ipc/ipc_table.c |  7 ++++---
 kern/kalloc.h   |  2 --
 kern/slab.c     | 21 ++++-----------------
 3 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/ipc/ipc_table.c b/ipc/ipc_table.c
index d5b79045..cbb6a894 100644
--- a/ipc/ipc_table.c
+++ b/ipc/ipc_table.c
@@ -39,6 +39,7 @@
 #include <ipc/ipc_port.h>
 #include <ipc/ipc_entry.h>
 #include <kern/kalloc.h>
+#include <kern/slab.h>
 #include <vm/vm_kern.h>
 
 /*
@@ -144,7 +145,7 @@ ipc_table_alloc(
 	if (size < PAGE_SIZE)
 		table = kalloc(size);
 	else
-		if (kmem_alloc(kalloc_map, &table, size) != KERN_SUCCESS)
+		if (kmem_alloc(kmem_map, &table, size) != KERN_SUCCESS)
 			table = 0;
 
 	return table;
@@ -170,7 +171,7 @@ ipc_table_realloc(
 {
 	vm_offset_t new_table;
 
-	if (kmem_realloc(kalloc_map, old_table, old_size,
+	if (kmem_realloc(kmem_map, old_table, old_size,
 			 &new_table, new_size) != KERN_SUCCESS)
 		new_table = 0;
 
@@ -194,5 +195,5 @@ ipc_table_free(
 	if (size < PAGE_SIZE)
 		kfree(table, size);
 	else
-		kmem_free(kalloc_map, table, size);
+		kmem_free(kmem_map, table, size);
 }
diff --git a/kern/kalloc.h b/kern/kalloc.h
index 1330b546..004e3a6b 100644
--- a/kern/kalloc.h
+++ b/kern/kalloc.h
@@ -30,8 +30,6 @@
 #include <mach/machine/vm_types.h>
 #include <vm/vm_types.h>
 
-extern vm_map_t kalloc_map;
-
 extern vm_offset_t kalloc (vm_size_t size);
 extern void kfree (vm_offset_t data, vm_size_t size);
 
diff --git a/kern/slab.c b/kern/slab.c
index 5a9cbea1..12e4ff49 100644
--- a/kern/slab.c
+++ b/kern/slab.c
@@ -165,7 +165,7 @@
 /*
  * Size of the VM submap from which default backend functions allocate.
  */
-#define KMEM_MAP_SIZE (64 * 1024 * 1024)
+#define KMEM_MAP_SIZE (128 * 1024 * 1024)
 
 /*
  * Shift for the first kalloc cache size.
@@ -177,11 +177,6 @@
  */
 #define KALLOC_NR_CACHES 13
 
-/*
- * Size of the VM submap for general purpose allocations.
- */
-#define KALLOC_MAP_SIZE (64 * 1024 * 1024)
-
 /*
  * Values the buftag state member can take.
  */
@@ -283,17 +278,11 @@ static unsigned int kmem_nr_caches;
 static simple_lock_data_t __attribute__((used)) kmem_cache_list_lock;
 
 /*
- * VM submap for slab caches (except general purpose allocations).
+ * VM submap for slab caches.
  */
 static struct vm_map kmem_map_store;
 vm_map_t kmem_map = &kmem_map_store;
 
-/*
- * VM submap for general purpose allocations.
- */
-static struct vm_map kalloc_map_store;
-vm_map_t kalloc_map = &kalloc_map_store;
-
 /*
  * Time of the last memory reclaim, in clock ticks.
  */
@@ -1380,7 +1369,7 @@ static vm_offset_t kalloc_pagealloc(vm_size_t size)
     vm_offset_t addr;
     kern_return_t kr;
 
-    kr = kmem_alloc_wired(kalloc_map, &addr, size);
+    kr = kmem_alloc_wired(kmem_map, &addr, size);
 
     if (kr != KERN_SUCCESS)
         return 0;
@@ -1390,7 +1379,7 @@ static vm_offset_t kalloc_pagealloc(vm_size_t size)
 
 static void kalloc_pagefree(vm_offset_t ptr, vm_size_t size)
 {
-    kmem_free(kalloc_map, ptr, size);
+    kmem_free(kmem_map, ptr, size);
 }
 
 void kalloc_init(void)
@@ -1399,8 +1388,6 @@ void kalloc_init(void)
     size_t i, size;
     vm_offset_t min, max;
 
-    kmem_submap(kalloc_map, kernel_map, &min, &max, KALLOC_MAP_SIZE, FALSE);
-
     size = 1 << KALLOC_FIRST_SHIFT;
 
     for (i = 0; i < ARRAY_SIZE(kalloc_caches); i++) {
-- 
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