From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrea Arcangeli Subject: Re: open(2) says O_DIRECT works on 512 byte boundries? Date: Tue, 3 Feb 2009 16:08:16 +0100 Message-ID: <20090203150816.GB20323@random.random> References: <20090128213322.GA15789@kroah.com> <20090129141338.34e44a1f.kamezawa.hiroyu@jp.fujitsu.com> <20090129160826.701E.KOSAKI.MOTOHIRO@jp.fujitsu.com> <20090130061714.GC31209@kroah.com> <20090202220856.GY20323@random.random> <20090203133811.47324d80.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20090203133811.47324d80.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org> Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: KAMEZAWA Hiroyuki Cc: Greg KH , KOSAKI Motohiro , mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-man@vger.kernel.org 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... -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html