From cf7b6702934018bfbf6955c3d413ac43024a96ad Mon Sep 17 00:00:00 2001
From: Austin Clements <amdragon@mit.edu>
Date: Fri, 2 Sep 2011 14:11:16 -0400
Subject: [PATCH] Make mappages fit on the page
---
vm.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/vm.c b/vm.c
index 181b376..9a099bf 100644
--- a/vm.c
+++ b/vm.c
@@ -77,8 +77,7 @@ mappages(pde_t *pgdir, void *va, uint size, uint pa,
a = (char *) PGROUNDDOWN((uint) va);
last = (char *) PGROUNDDOWN(((uint) va) + size - 1);
for(;;){
- pte = walkpgdir(pgdir, a, alloc);
- if(pte == 0)
+ if((pte = walkpgdir(pgdir, a, alloc) == 0)
return -1;
if(*pte & PTE_P)
panic("remap");
--
GitLab