From mboxrd@z Thu Jan  1 00:00:00 1970
From: Theodore Ts'o <tytso@mit.edu>
Subject: Re: Tracking actual disk write sources instead of flush thread
Date: Wed, 23 Apr 2014 19:00:42 -0400
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Cc: Matthew Wilcox <willy@linux.intel.com>,
	"Zuckerman, Boris" <borisz@hp.com>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
To: Phillip Susi <psusi@ubuntu.com>
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On Wed, Apr 23, 2014 at 03:39:19PM -0400, Phillip Susi wrote:
> I'm just a little flabbergasted that this regression ( I'm sure there
> was a time when the current io accounting mechanism did work, probably
> before the buffer_head -> page cache transition way, *way* back when )

Using what tool?  Task-level io accounting is new compared to the
buffer -> page cache transition, as far as I can remember.

						- Ted