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Date:	Thu, 7 Aug 2014 21:46:39 +1000
From:	NeilBrown <neilb@...e.de>
To:	Fengguang Wu <fengguang.wu@...el.com>
Cc:	Dave Hansen <dave.hansen@...el.com>,
	Christoph Hellwig <hch@....de>,
	LKML <linux-kernel@...r.kernel.org>, lkp@...org,
	Al Viro <viro@...IV.linux.org.uk>
Subject: Re: [fs] e691fc4583e: -59.7% dbench.throughput-MB/sec

On Thu, 7 Aug 2014 18:55:38 +0800 Fengguang Wu <fengguang.wu@...el.com> wrote:

> Hi Neil,
> 
> We noticed the below dbench regression on
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> commit e691fc4583e512f936bd04efb870815fe1ed750d ("fs: allow ->d_manage() to declare -EISDIR in rcu_walk mode.")

Thanks.
That patch is buggy - Dan Carpenter found it.
A replacement has been sent to Al Viro who has acknowledged it.
So it should be good before it gets to Linus.

Thanks,
NeilBrown

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