On 19-06-27 10:27:59, Christoph Hellwig wrote: > On Thu, Jun 27, 2019 at 05:52:47AM +0900, Minwoo Im wrote: > > Could you please explain a bit why we should not make it dirty in case > > of compound page? > > PageCompount is only true for the tail pages, and marking them dirty > doesn't work. On the other hand marking the head page dirty covers > the whole compount, so we are fine. Christoph, Thanks for letting me know this.
