On Fri, Jul 28 2017 at 12:17pm -0400, Bart Van Assche <Bart.VanAssche@xxxxxxx> wrote: > On Mon, 2017-04-17 at 12:09 -0700, Dan Williams wrote: > > diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig > > index b7767da50c26..1de8372d9459 100644 > > --- a/drivers/md/Kconfig > > +++ b/drivers/md/Kconfig > > @@ -200,6 +200,7 @@ config BLK_DEV_DM_BUILTIN > > config BLK_DEV_DM > > tristate "Device mapper support" > > select BLK_DEV_DM_BUILTIN > > + select DAX > > ---help--- > > Device-mapper is a low level volume manager. It works by allowing > > people to specify mappings for ranges of logical sectors. Various > > (replying to an e-mail of three months ago) > > Hello Dan, > > While building a v4.12 kernel I noticed that enabling device mapper support > now unconditionally enables DAX. I think there are plenty of systems that use > dm but do not need DAX. Have you considered to rework this such that instead > of dm selecting DAX that DAX support is only enabled in dm if CONFIG_DAX is > enabled? I haven't but patches to do so would be welcomed. Mike
