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Message-ID: <20181002143713.GA19845@infradead.org> Date: Tue, 2 Oct 2018 07:37:13 -0700 From: Christoph Hellwig <hch@...radead.org> To: Jan Kara <jack@...e.cz> Cc: Johannes Thumshirn <jthumshirn@...e.de>, Dan Williams <dan.j.williams@...el.com>, Dave Jiang <dave.jiang@...el.com>, linux-nvdimm@...ts.01.org, linux-mm@...ck.org, linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org, linux-api@...r.kernel.org Subject: Re: Problems with VM_MIXEDMAP removal from /proc/<pid>/smaps On Tue, Oct 02, 2018 at 04:29:59PM +0200, Jan Kara wrote: > > OK naive question from me, how do we want an application to be able to > > check if it is running on a DAX mapping? > > The question from me is: Should application really care? No, it should not. DAX is an implementation detail thay may change or go away at any time.
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