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Date:	Fri, 30 Mar 2012 13:54:17 -0700
From:	Andi Kleen <>
To:	Linus Torvalds <>
Cc:	"Theodore Ts'o" <>,,, Jan Kara <>,
	Fengguang Wu <>
Subject: Re: GIT PULL] ext4 updates for 3.4

Linus Torvalds <> writes:

> On Mon, Mar 26, 2012 at 11:07 AM, Theodore Ts'o <> wrote:
>> Ext4 commits for 3.3 merge window; mostly cleanups and bug fixes
> Ted, is there any chance that the dirty handling (or something else)
> has some serious latency bug?

There's at least a serious scalability bug. That new extent cache 
statistic count in the super block is showing up badly on IO profiles
on larger systems.


-- -- Speaking for myself only
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