From: Nick Piggin <npiggin@suse.de>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Sage Weil <sage@newdream.net>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [patch] mm: close page_mkwrite races
Date: Thu, 2 Apr 2009 11:00:09 +0200 [thread overview]
Message-ID: <20090402090009.GA22256@wotan.suse.de> (raw)
In-Reply-To: <1238628811.18376.4.camel@heimdal.trondhjem.org>
On Wed, Apr 01, 2009 at 07:33:31PM -0400, Trond Myklebust wrote:
> On Wed, 2009-04-01 at 16:02 -0700, Andrew Morton wrote:
> > What is "the problem"? Can we get "the problem"'s description included
> > in the changelog?
> >
> > The patch is fairly ugly, somewhat costly and makes things (even) more
> > complex. Sigh.
>
> The problem is that currently, pages can be marked as dirty after they
> have been written out, or even during writeout.
>
> IOW: the filesystem and the mm no longer agree on the state of the page,
> which again triggers issues such as
> http://bugzilla.kernel.org/show_bug.cgi?id=12913
Thanks, that would go nicely at the top of the changelog.
next prev parent reply other threads:[~2009-04-02 9:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-30 13:53 [patch] mm: close page_mkwrite races Nick Piggin
2009-03-30 13:56 ` Nick Piggin
2009-03-31 19:55 ` Sage Weil
2009-04-01 23:02 ` Andrew Morton
2009-04-01 23:33 ` Trond Myklebust
2009-04-02 9:00 ` Nick Piggin [this message]
2009-04-02 9:04 ` Nick Piggin
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