From ecf2f2c35f5f644b9781cd995d414af78e9d4d3b Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Tue, 17 Mar 2026 14:36:39 -0700
Subject: [PATCH] Match Go DeleteVolumeNeedle: check noWriteOrDelete before
 allowing delete

Go checks v.noWriteOrDelete before proceeding with needle deletion,
returning "volume is read only" if true. Rust was skipping this check.
---
 seaweed-volume/src/storage/store.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/seaweed-volume/src/storage/store.rs b/seaweed-volume/src/storage/store.rs
index ec10ce389..8f99ebb3d 100644
--- a/seaweed-volume/src/storage/store.rs
+++ b/seaweed-volume/src/storage/store.rs
@@ -383,6 +383,12 @@ impl Store {
         vid: VolumeId,
         n: &mut Needle,
     ) -> Result<Size, VolumeError> {
+        // Match Go's DeleteVolumeNeedle: check noWriteOrDelete before proceeding.
+        let (_, vol) = self.find_volume(vid).ok_or(VolumeError::NotFound)?;
+        if vol.is_no_write_or_delete() {
+            return Err(VolumeError::ReadOnly);
+        }
+
         let (_, vol) = self.find_volume_mut(vid).ok_or(VolumeError::NotFound)?;
         vol.delete_needle(n)
     }