From: Andrea Arcangeli <aarcange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: KAMEZAWA Hiroyuki
<kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
Cc: Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>,
KOSAKI Motohiro
<kosaki.motohiro-+CUm20s59erQFUHtdCDX3A@public.gmane.org>,
mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: open(2) says O_DIRECT works on 512 byte boundries?
Date: Tue, 3 Feb 2009 16:08:16 +0100 [thread overview]
Message-ID: <20090203150816.GB20323@random.random> (raw)
In-Reply-To: <20090203133811.47324d80.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.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...
--
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WARNING: multiple messages have this Message-ID (diff)
From: Andrea Arcangeli <aarcange@redhat.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Greg KH <greg@kroah.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
mtk.manpages@gmail.com, linux-man@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: open(2) says O_DIRECT works on 512 byte boundries?
Date: Tue, 3 Feb 2009 16:08:16 +0100 [thread overview]
Message-ID: <20090203150816.GB20323@random.random> (raw)
In-Reply-To: <20090203133811.47324d80.kamezawa.hiroyu@jp.fujitsu.com>
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...
next prev parent reply other threads:[~2009-02-03 15:08 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-28 21:33 open(2) says O_DIRECT works on 512 byte boundries? Greg KH
2009-01-28 21:33 ` Greg KH
[not found] ` <20090128213322.GA15789-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2009-01-29 0:41 ` Robert Hancock
2009-01-29 0:41 ` Robert Hancock
[not found] ` <4980FB4D.9090009-fVOoFLC7IWo@public.gmane.org>
2009-01-29 1:17 ` Greg KH
[not found] ` <20090129011758.GA26534-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2009-01-29 2:59 ` Michael Kerrisk
2009-01-29 2:59 ` Michael Kerrisk
2009-01-29 3:13 ` Greg KH
[not found] ` <20090129031349.GA23722-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2009-01-29 15:40 ` Jeff Moyer
2009-01-29 15:40 ` Jeff Moyer
[not found] ` <x49iqnyi0ih.fsf-RRHT56Q3PSP4kTEheFKJxxDDeQx5vsVwAInAS/Ez/D0@public.gmane.org>
2009-01-30 6:16 ` Greg KH
2009-01-30 6:16 ` Greg KH
2009-01-29 5:13 ` KAMEZAWA Hiroyuki
2009-01-29 5:13 ` KAMEZAWA Hiroyuki
[not found] ` <20090129141338.34e44a1f.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2009-01-29 7:10 ` KOSAKI Motohiro
2009-01-29 7:10 ` KOSAKI Motohiro
[not found] ` <20090129160826.701E.KOSAKI.MOTOHIRO-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2009-01-30 6:17 ` Greg KH
2009-01-30 6:17 ` Greg KH
[not found] ` <20090130061714.GC31209-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2009-02-02 22:08 ` Andrea Arcangeli
2009-02-02 22:08 ` Andrea Arcangeli
2009-02-03 1:29 ` KAMEZAWA Hiroyuki
[not found] ` <20090203102920.684e7b67.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2009-02-03 2:31 ` Andrea Arcangeli
2009-02-03 2:31 ` Andrea Arcangeli
[not found] ` <20090203023147.GZ20323-ulAA2RpUuRJvbPj5LQlJ3g@public.gmane.org>
2009-02-03 2:55 ` KAMEZAWA Hiroyuki
2009-02-03 2:55 ` KAMEZAWA Hiroyuki
[not found] ` <20090203115540.86a01273.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2009-02-03 3:42 ` KAMEZAWA Hiroyuki
2009-02-03 3:42 ` KAMEZAWA Hiroyuki
2009-02-06 17:55 ` Andrea Arcangeli
2009-02-06 17:55 ` Andrea Arcangeli
[not found] ` <20090202220856.GY20323-ulAA2RpUuRJvbPj5LQlJ3g@public.gmane.org>
2009-02-03 3:50 ` Greg KH
2009-02-03 3:50 ` Greg KH
[not found] ` <20090203035012.GC1867-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2009-02-03 15:01 ` Andrea Arcangeli
2009-02-03 15:01 ` Andrea Arcangeli
2009-02-03 4:13 ` KAMEZAWA Hiroyuki
2009-02-03 4:13 ` KAMEZAWA Hiroyuki
2009-02-03 4:38 ` KAMEZAWA Hiroyuki
2009-02-03 4:38 ` KAMEZAWA Hiroyuki
[not found] ` <20090203133811.47324d80.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2009-02-03 15:08 ` Andrea Arcangeli [this message]
2009-02-03 15:08 ` Andrea Arcangeli
2009-02-04 23:41 ` Greg KH
2009-02-04 23:41 ` Greg KH
[not found] ` <20090204234153.GA32244-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2009-02-06 17:54 ` Andrea Arcangeli
2009-02-06 17:54 ` Andrea Arcangeli
[not found] ` <20090206175414.GQ14011-ulAA2RpUuRJvbPj5LQlJ3g@public.gmane.org>
2009-02-06 18:38 ` Andrea Arcangeli
2009-02-06 18:38 ` Andrea Arcangeli
2009-02-07 13:32 ` Izik Eidus
2009-02-07 13:32 ` Izik Eidus
[not found] ` <498D8D53.6030007-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-02-07 15:33 ` Andrea Arcangeli
2009-02-07 15:33 ` Andrea Arcangeli
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