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From: "Jörn Engel" <joern@logfs.org>
To: Jamie Lokier <jamie@shareable.org>
Cc: "Jörn Engel" <joern@logfs.org>,
	"Nick Piggin" <nickpiggin@yahoo.com.au>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	"Chris Wedgwood" <cw@f00f.org>
Subject: Re: Proposal for "proper" durable fsync() and fdatasync()
Date: Tue, 26 Feb 2008 18:38:19 +0100	[thread overview]
Message-ID: <20080226173819.GC23829@lazybastard.org> (raw)
In-Reply-To: <20080226172913.GB22471@shareable.org>

On Tue, 26 February 2008 17:29:13 +0000, Jamie Lokier wrote:
> 
> You're right.  Though, doesn't normal page writeback enqueue the COW
> metadata changes?  If not, how do they get written in a timely
> fashion?

It does.  But this is not sufficient to guarantee that the pages in
question have been safely committed to the device by the time
sync_file_range() has returned.

Jörn

-- 
Joern's library part 5:
http://www.faqs.org/faqs/compression-faq/part2/section-9.html
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  reply	other threads:[~2008-02-26 17:39 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-26  7:26 Proposal for "proper" durable fsync() and fdatasync() Jamie Lokier
2008-02-26  7:43 ` Andrew Morton
2008-02-26  7:59   ` Jamie Lokier
2008-02-26  9:16     ` Nick Piggin
2008-02-26 14:09       ` Jörn Engel
2008-02-26 15:07         ` Jamie Lokier
2008-02-26 16:27           ` Andrew Morton
2008-02-26 15:28         ` Jamie Lokier
2008-02-26 17:02           ` Jörn Engel
2008-02-26 17:29             ` Jamie Lokier
2008-02-26 17:38               ` Jörn Engel [this message]
2008-02-26 16:43       ` Jeff Garzik
2008-02-26 17:00         ` Jamie Lokier
2008-02-26 17:54           ` Jeff Garzik
2008-02-27 14:16             ` Jamie Lokier
2008-02-26  7:43 ` Jeff Garzik
2008-02-26  7:55   ` Jamie Lokier
2008-02-26  9:25   ` Jamie Lokier
2008-02-26 12:13   ` Ric Wheeler
2008-02-26 15:43     ` Jamie Lokier
2008-11-24 21:10       ` Sachin Gaikwad
2008-11-25 10:17         ` Jamie Lokier

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