description/memory: vmalloc

study/kernel/00-DESCRIPTION/MEMORY_MANAGER.md

@@ -2515,7 +2515,7 @@ DAMON 利用两个核心机制 : **基于区域的采样**和**自适应区域
 | 2009/02/18 | Tejun Heo <tj@kernel.org> | [implement new dynamic percpu allocator](https://lore.kernel.org/patchwork/cover/144750) | 实现了 [vm_area_register_early()](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f0aa6617903648077dffe5cfcf7c4458f4610fa7) 以支持在启动阶段注册 vmap 区域. 基于此特性实现了可伸缩的动态 percpu 分配器(CONFIG_HAVE_DYNAMIC_PER_CPU_ARE), 可用于静态(pcpu_setup_static/pcpu_setup_first_chunk)和动态(`__alloc_percpu`) percpu 区域, 这将允许静态和动态区域共享更快的直接访问方法. | v1 ☑ 2.6.30-rc1 | [PatchWork](https://lore.kernel.org/patchwork/cover/144750) |
 | 2009/02/24 | Tejun Heo <tj@kernel.org> | [percpu: fix pcpu_chunk_struct_size](https://lore.kernel.org/patchwork/cover/145272) | 1. 为对 static per_cpu(第一个 percpu 块)分配增加更多的自由度: 引入 PERCPU_DYNAMIC_RESERVE 用于预留 percpu 空间, 修改 pcpu_setup_static() 为 pcpu_setup_first_chunk(), 并让其更灵活.<br>2. 实现嵌入式的 percpu 分配器, 在 !NUMA 模式下, 可以简单地分配连续内存并将其用于第一个块, 而无需将其映射到 vmalloc 区域. 由于内存区域是由大页物理内存映射覆盖的, 所以它允许在基于可伸缩的动态 percpu 分配器分配静态 percpu 区域不引入任何 TLB 开销, 而且实现也非常简单.  | v1 ☑ 2.6.30-rc1 | [PatchWork](https://lore.kernel.org/patchwork/cover/145272) |
 | 2009/03/26 | Tejun Heo <tj@kernel.org> | [percpu: clean up percpu constants](https://lore.kernel.org/patchwork/cover/146513) | NA | v1 ☑ 2.6.30-rc1 | [PatchWork](https://lore.kernel.org/patchwork/cover/146513) |
-| 2009/07/21 | Tejun Heo <tj@kernel.org> | [percpu: fix pcpu_reclaim() locking](https://lore.kernel.org/patchwork/cover/164588) | NA | v1 ☑ 2.6.32-rc1 | [PatchWork](https://lore.kernel.org/patchwork/cover/164588) |
+| 2009/07/21 | Tejun Heo <tj@kernel.org> | [percpu:  implement pcpu_get_vm_areas() and update embedding first chunk allocator](https://lore.kernel.org/patchwork/cover/164588) | NA | v1 ☑ 2.6.32-rc1 | [PatchWork](https://lore.kernel.org/patchwork/cover/164588) |