From: Andrew Morton <akpm@osdl.org>
To: pbadari@us.ibm.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 2.6.11-mm1 "nobh" support for ext3 writeback mode
Date: Fri, 4 Mar 2005 16:31:53 -0800 [thread overview]
Message-ID: <20050304163153.62afd2f1.akpm@osdl.org> (raw)
In-Reply-To: <20050304162331.4a7dfdb8.akpm@osdl.org>
Andrew Morton <akpm@osdl.org> wrote:
>
> page reclaim can come in, grab the page lock and
> whip the page off the mapping.
No it can't - we hold an additional ref on the page, so reclaim will back
off. Still, it feels a bit flakey.
And we're not supposed to take lock_page() inside journal_start, because
that's a ranking violation. Probably i_sem will prevent an actual deadlock
occurring, however.
next prev parent reply other threads:[~2005-03-05 2:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-05 0:02 Badari Pulavarty
2005-03-05 0:23 ` Andrew Morton
2005-03-05 0:29 ` Badari Pulavarty
2005-03-05 0:45 ` Andrew Morton
2005-03-05 0:49 ` Badari Pulavarty
2005-03-05 1:02 ` Badari Pulavarty
2005-03-05 1:16 ` Andrew Morton
2005-03-05 17:39 ` Badari Pulavarty
2005-03-05 0:31 ` Andrew Morton [this message]
2005-03-05 0:46 ` Badari Pulavarty
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