On Tue, 15 Apr 2025 21:37:04 -0700, Christoph Hellwig wrote: > > The ntfs3 can use the page cache directly, so its address_space_operations > > need direct_IO. > > This sentence still does not make any sense. Did you see the following comments? https://lore.kernel.org/all/20250415010518.2008216-1-lizhi.xu@xxxxxxxxxxxxx/