From 83e17e29456ec9b6d45f4d9f2634eb280c6f414f Mon Sep 17 00:00:00 2001
From: stefan <stefan@s00.xyz>
Date: Wed, 19 Apr 2023 20:50:10 -0400
Subject: ticket locks

---
 sys/kern/mm/kalloc.c | 66 ----------------------------------------------------
 1 file changed, 66 deletions(-)
 delete mode 100644 sys/kern/mm/kalloc.c

(limited to 'sys/kern/mm/kalloc.c')

diff --git a/sys/kern/mm/kalloc.c b/sys/kern/mm/kalloc.c
deleted file mode 100644
index bfd4f3f..0000000
--- a/sys/kern/mm/kalloc.c
+++ /dev/null
@@ -1,66 +0,0 @@
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-#include <printf.h>
-#include <mm/kalloc.h>
-
-extern uint64_t HEAP_START; 
-
-typedef struct freenode {
-	struct freenode *next;
-} freenode_t;
-
-freenode_t *head = NULL;
-
-void *
-kalloc(void) 
-{
-	freenode_t *p = head;
-
-	if (p == NULL)
-		return NULL;
-
-	head = p->next;
-	return p;
-}
-
-void *
-kzalloc(void)
-{
-	freenode_t *p = kalloc();
-	memset(p, 0, PAGE_SIZE);
-	return p;
-}
-
-void
-kfree(void *p)
-{
-	if (p == NULL)
-		return;
-
-	freenode_t *tmp = head;
-	head = p;
-	head->next = tmp;
-}
-
-void
-kalloc_init(void)
-{
-        freenode_t *p = (freenode_t*)HEAP_START;
-        for (;(unsigned long)p + PAGE_SIZE <= (HEAP_START + 0x100000); p += PAGE_SIZE) {
-                kfree(p);
-        }
-}
-
-void 
-walkfree(void)
-{
-        freenode_t *node = head;
-        int nfree = 0;
-        while (node) {
-                printf("freenode at %p\n", node);
-                node = node->next;
-                nfree++;
-        }
-        printf("found and printed %d free pages!\n", nfree);
-}
-- 
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