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SubjectRe: [PATCH v3 00/12] Enable per-file/directory DAX operations V3
On Thu, Feb 13, 2020 at 11:01:57AM -0800, 'Ira Weiny' wrote:
> On Wed, Feb 12, 2020 at 02:49:48PM -0500, Jeff Moyer wrote:
> > Ira Weiny <> writes:
> >


> > Given that we document the dax mount
> > option as "the way to get dax," it may be a good idea to allow for a
> > user to selectively disable dax, even when -o dax is specified. Is that
> > possible?
> Not with this patch set. And I'm not sure how that would work. The idea was
> that -o dax was simply an override for users who were used to having their
> entire FS be dax. We wanted to depreciate the use of "-o dax" in general. The
> individual settings are saved so I don't think it makes sense to ignore the -o
> dax in favor of those settings. Basically that would IMO make the -o dax
> useless.

Oh and I forgot to mention that setting 'dax' on the root of the FS basically
provides '-o dax' functionality by default with the ability to "turn it off"
for files.


> Ira

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