From 62bcb0c867e4f2dcf20cc86828fe13b92c667f12 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Gr=C3=A9goire?= <loic@gregoire.dev>
Date: Fri, 17 Apr 2026 18:59:44 -0400
Subject: [PATCH] fix(mm): use const

---
 src/mm/vmem.zig | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/mm/vmem.zig b/src/mm/vmem.zig
index a93d1c5..8e7d320 100644
--- a/src/mm/vmem.zig
+++ b/src/mm/vmem.zig
@@ -113,9 +113,9 @@ const Segment = struct {
         return @fieldParentPtr("linkage", linkage);
     }
 
-    fn cmp(a_node: *rtl.bst.Node, b_node: *rtl.bst.Node) std.math.Order {
-        const a: *Segment = Segment.from_tree_link(a_node);
-        const b: *Segment = Segment.from_tree_link(b_node);
+    fn cmp(a_node: *const rtl.bst.Node, b_node: *const rtl.bst.Node) std.math.Order {
+        const a = Segment.from_tree_link(@constCast(a_node));
+        const b = Segment.from_tree_link(@constCast(b_node));
         return std.math.order(a.base, b.base);
     }
 };
@@ -163,7 +163,7 @@ pub const Arena = struct {
         self.rotor = null;
 
         // Add initial span
-       try self.add(base, size);
+        try self.add(base, size);
     }
 
     pub fn deinit(self: *Self) void {
@@ -418,7 +418,7 @@ pub const Arena = struct {
 
     // Try to fit the given segment to the request with the given options.
     // Returns the fitted address if successful.
-    fn try_to_fit(self: *Self, segment: *Segment, size: usize, options: AllocOptions) ?usize {
+    fn try_to_fit(self: *Self, segment: *const Segment, size: usize, options: AllocOptions) ?usize {
         var start = @max(segment.base, options.min orelse 0);
         const end = @min(segment.base + segment.size, options.max orelse std.math.maxInt(usize));
         const alignment = options.alignment orelse self.quantum;