linux-kernel - Re: 2.6.29-rc8-git5: Reported regressions from 2.6.28

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Message-ID: <alpine.LFD.2.00.0903230922440.3030@localhost.localdomain>
Date:	Mon, 23 Mar 2009 09:23:47 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Wu Fengguang <fengguang.wu@...el.com>
cc:	Ingo Molnar <mingo@...e.hu>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Adrian Bunk <bunk@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Natalie Protasevich <protasnb@...il.com>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	Linux ACPI <linux-acpi@...r.kernel.org>,
	Linux PM List <linux-pm@...ts.linux-foundation.org>,
	Linux SCSI List <linux-scsi@...r.kernel.org>,
	Nick Piggin <npiggin@...e.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: 2.6.29-rc8-git5: Reported regressions from 2.6.28



On Mon, 23 Mar 2009, Wu Fengguang wrote:
> > 
> > I think this was tracked back to the effective halving of 
> > dirty_ratio by 1cf6e7d83 ("mm: task dirty accounting fix") and 
> > doubling the ratio fixed the iozone regression.
> 
> Yes, exactly. The patch for fixing this regression is trivial.

I was planning on applying that patch only after 2.6.29 is out, and then 
if there are no surprising side effects and nobody complains, we'd then 
back-port it into stable.

		Linus
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