Re: open(2) says O_DIRECT works on 512 byte boundries?

Andrea Arcangeli
2009-02-03T15:08:30Z

On Tue, Feb 03, 2009 at 01:38:11PM +0900, KAMEZAWA Hiroyuki wrote:
> From above, FOLL_WRITE can be dropped and PageGUP() will not be set ?

Yeah, this was an implementation trouble!! If cow triggered, PG_gup
wasn't getting set as it should have.

The only remaining bit is to check hugetlb pages...