On 06/18/2018 01:12 AM, Christoph Hellwig wrote: > On Sun, Jun 17, 2018 at 01:28:18PM -0700, John Hubbard wrote: >> Yes. However, my thinking was: get_user_pages() can become a way to indicate >> that >> these pages are going to be treated specially. In particular, the caller >> does not really want or need to support certain file operations, while the >> page is flagged this way. >> >> If necessary, we could add a new API call. > > That API call is called get_user_pages_longterm.
OK...I had the impression that this was just semi-temporary API for dax, but given that it's an exported symbol, I guess it really is here to stay. Anyway, are you thinking that we could set the new page flag here? Or just pointing out that the other get_user_pages* variants are the wrong place?
