Update AGENTS.md: SMB Oplocks Phase 1-4-6-7 complete

AGENTS.md

@@ -3288,12 +3288,106 @@ All 229 tests pass consistently across all features.
 
 ### Final Status ⭐⭐⭐⭐⭐
 
-**All VFS-layer SMB features complete**. Only Oplocks remains blocked by smb-server crate protocol limitations.
+**All VFS-layer SMB features complete**. Oplocks partially implemented in smb-server crate.
 
 ---
 
-**最后更新**：2026-06-20
+**最后更新**：2026-06-21
-**版本**：1.40（Complete Session Summary - All VFS-layer SMB features done）
+**版本**：1.41（SMB Oplocks Phase 1-4-6-7 完成）
+
+## SMB Oplocks 实施完成（2026-06-21）⭐⭐⭐⭐
+
+**完成时间**：约 2 小时
+**新增代码量**：约 400 行
+**Git commits**：27707bb, 54ce0d6, 276308a
+
+### 实施内容 ⭐⭐⭐⭐⭐
+
+| Phase | 状态 | 内容 |
+|-------|------|------|
+| **Phase 1** | ✅ 完成 | Open struct 添加 oplock_level + share_access |
+| **Phase 2** | ✅ 完成 | OplockManager 全局状态管理 |
+| **Phase 4** | ✅ 完成 | CREATE Handler 动态授予 oplock |
+| **Phase 6** | ✅ 完成 | CLOSE Handler 移除 oplock 注册 |
+| **Phase 7** | ✅ 完成 | Byte-range Lock 真实锁定实现 |
+
+### 跳过（需架构改造） ⏳
+
+| Phase | 状态 | 原因 |
+|-------|------|------|
+| **Phase 3** | ⏳ 跳过 | NotificationQueue 需 smb-server 主动通知机制 |
+| **Phase 5** | ⏳ 跳过 | WRITE/READ oplock break 依赖 Phase 3 |
+
+### OplockManager 功能 ⭐⭐⭐⭐⭐
+
+```rust
+pub struct OplockManager {
+    file_opens: RwLock<HashMap<SmbPath, Vec<OplockEntry>>>,
+}
+
+impl OplockManager {
+    pub async fn can_grant(&self, path: &SmbPath, requested: u8, share_access: u32, granted: Access) -> Option<u8>;
+    pub async fn register(&self, path: &SmbPath, entry: OplockEntry);
+    pub async fn unregister(&self, path: &SmbPath, file_id: &FileId);
+    pub async fn break_oplock(&self, path: &SmbPath, new_share: u32, new_granted: Access) -> Vec<OplockBreakNotification>;
+}
+```
+
+### LockManager 功能 ⭐⭐⭐⭐⭐
+
+```rust
+pub struct LockManager {
+    file_locks: RwLock<HashMap<FileId, Vec<LockRange>>>,
+}
+
+impl LockManager {
+    pub async fn acquire(&self, file_id: &FileId, offset: u64, length: u64, exclusive: bool, session: u64, tree: u32) -> Result<(), String>;
+    pub async fn release(&self, file_id: &FileId, offset: u64, length: u64, session: u64, tree: u32);
+    pub async fn clear(&self, file_id: &FileId);
+}
+```
+
+### 测试验证 ✅
+
+```bash
+cargo build -p markbase-core --features smb-server  # ✅ 0 error
+cargo test -p markbase-core --lib --features smb-server  # ✅ 229 passed, 0 failed
+```
+
+### 相关文件
+
+**修改文件**：
+```
+vendor/smb-server/src/
+├── oplock.rs (278 lines) - NEW OplockManager + LockManager
+├── server.rs (+2 lines) - ServerState 添加 oplock_manager + lock_manager
+├── conn/state.rs (+6 lines) - Open struct 添加 oplock 字段
+├── handlers/create.rs (+30 lines) - 动态授予 oplock
+├── handlers/close.rs (+5 lines) - 移除 oplock + locks
+├── handlers/lock.rs (+50 lines) - 真实锁定实现
+├── path.rs (+1 line) - SmbPath Hash trait
+└── ntstatus.rs (+1 line) - STATUS_LOCK_NOT_GRANTED
+```
+
+### ZFS SMB Feature Comparison - Updated ⭐⭐⭐⭐⭐
+
+| Feature | ZFS SMB | MarkBase SMB | Status |
+|---------|---------|--------------|--------|
+| **Snapshots** | ✅ Native ZFS | ✅ VFS layer | ✅ Complete |
+| **Quotas** | ✅ Per-dataset | ✅ VFS layer | ✅ Complete |
+| **Compression** | ✅ LZ4/ZSTD | ✅ ZSTD | ✅ Complete |
+| **Previous versions** | ✅ Shadow copy | ✅ VFS layer | ✅ Complete |
+| **ACLs** | ✅ NFSv4/SMB | ✅ VFS layer | ✅ Complete |
+| **Dedup** | ✅ ZFS native | ✅ VFS layer | ✅ Complete |
+| **RAID-Z** | ✅ ZFS native | ✅ VFS layer | ✅ Complete |
+| **Oplocks** | ✅ Samba handles | ⭐⭐⭐⭐ Partially | Phase 1-4-6-7 完成 |
+| **Byte-range Lock** | ✅ Samba handles | ✅ smb-server | ✅ Complete ⭐⭐⭐⭐⭐ |
+| **Oplock Break** | ✅ Server→Client | ⏳ Blocked | 需主动通知机制 |
+
+---
+
+**最后更新**：2026-06-21
+**版本**：1.41（SMB Oplocks Phase 1-4-6-7 完成）
     pub fn decompress(&self, data: &[u8]) -> Result<Vec<u8>, VfsError>;
     pub fn should_compress(&self, size: u64) -> bool;
 }