From ed44d51f7dcaee989d6f36bab8042f438692e7ce Mon Sep 17 00:00:00 2001
From: Freya Murphy <freya@freyacat.org>
Date: Fri, 2 May 2025 12:38:02 -0400
Subject: off by one

---
 kernel/memory/physalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'kernel')

diff --git a/kernel/memory/physalloc.c b/kernel/memory/physalloc.c
index 4255339..47522b8 100644
--- a/kernel/memory/physalloc.c
+++ b/kernel/memory/physalloc.c
@@ -27,7 +27,7 @@ static const char *segment_type_str[] = {
 
 static int n_pages(const struct memory_segment *m)
 {
-	return m->len / PAGE_SIZE;
+	return (m->len + PAGE_SIZE - 1) / PAGE_SIZE;
 }
 
 static void *page_at(int i)
-- 
cgit v1.2.3-freya