mem: Fix page allocator allocating 4096 times the amount of memory necessary

1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/mem.zig b/src/lib/mem.zig
index 25adc84..da50641 100644
--- a/src/lib/mem.zig
+++ b/src/lib/mem.zig
@@ -226,8 +226,9 @@ pub const PageAllocator = struct {
         assert(n > 0);
         if (n > maxInt(usize) - (paging.page_size - 1)) return null;
         const aligned_len = mem.alignForward(usize, n, paging.page_size);
+        const num_pages = @divExact(aligned_len, paging.page_size);
 
-        const slice = paging.zeroedAlloc(aligned_len) catch return null;
+        const slice = paging.zeroedAlloc(num_pages) catch return null;
         assert(mem.isAligned(@intFromPtr(slice.ptr), paging.page_size));
         return slice.ptr;
     }