docs/zh_CN: core-api: Update the translation of cachetlb.rst to 5.19-rc3

Synchronous translation from upstream commit 08b0b005
("mm: Add flush_dcache_folio()")
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Yanteng Si<siyanteng@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/d1fe8dfa3cfc3fe38c7caf8b5cf3b3482b5bddf8.1655863769.git.zhoubinbin@loongson.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/translations/zh_CN/core-api/cachetlb.rst

@@ -5,6 +5,7 @@
 :翻译:
 
  司延腾 Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
 
 :校译:
 
@@ -278,6 +279,11 @@ HyperSparc cpu就是这样一个具有这种属性的cpu。
 				CPU上，因为它将cpu存储到页面上，使其变脏。同样，请看
 				sparc64关于如何处理这个问题的例子。
 
+  ``void flush_dcache_folio(struct folio *folio)``
+
+	该函数的调用情形与flush_dcache_page()相同。它允许架构针对刷新整个
+	folio页面进行优化，而不是一次刷新一页。
+
   ``void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
   unsigned long user_vaddr, void *dst, void *src, int len)``
   ``void copy_from_user_page(struct vm_area_struct *vma, struct page *page,