On Sat, Jun 12, 2021 at 2:47 PM Al Viro <v...@zeniv.linux.org.uk> wrote: > > O_DIRECT case is a PITA - there we use GUP and there's no way > to tell GUP that in the current situation we do *NOT* want to hit > ->fault()/->page_mkwrite()/etc. pagefault_disable() won't be even > noticed there...
Well, we could change that.
And we do have get_user_pages_fast_only() these days.
Linus
