linux-kernel - Re: ext4: Fix data corruption with multi-block writepages support

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Date:	Fri, 4 Feb 2011 22:40:47 +0000
From:	Matt <jackdachef@...il.com>
To:	"Ted Ts'o" <tytso@....edu>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-ext4 <linux-ext4@...r.kernel.org>
Subject: Re: ext4: Fix data corruption with multi-block writepages support

>Thanks, added to the ext4 patch queue.

>I modified the commit description slightly to give credit to Jon
>Nelson, who reported the bug and really helped by devising a
>reproduceable test case.  Many thanks, Jon!!

>							- Ted

So that means that the file-corruption which existed until 2.6.37-rc6
and got triggered (for me) more easily via "dm crypt: scale to
multiple CPUs"
is fixed now ?

That should give ext4 a nice speedup for >=2.6.38 :)

Could you also please add an ?

Reported-by: Matthias Bayer <jackdachef <at> gmail <dot> com >

I mainly found it through testing with the mentioned dm-crypt scaling
patch and >=2.6.36-git*

Thanks & Regards !

Matt
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