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>