linux-kernel - Re: Re: Re: blk-throttle.c : When limit is changed, must startanewslice

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Message-ID: <20110315150405.GB24984@redhat.com>
Date:	Tue, 15 Mar 2011 11:04:05 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Lina Lu <lulina_nuaa@...mail.com>
Cc:	linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: Re: Re: blk-throttle.c : When limit is changed, must
 startanewslice

On Tue, Mar 15, 2011 at 11:00:25PM +0800, Lina Lu wrote:

[..]
> Hi Vivek,
> I have test the following patch on 2.6.39 core branch of Jens's tree, the bug has
> been fixed. 

Thanks Lina. I will cleanup this patch and post for inclusion.

> 
> Can you tell me which patch makes the throtl_tg_on_rr() return 1 even if the limits
> are very high?

Following patches fixes the issue in Jens's tree.

commit de701c74a34005e637e1ca2634fbf28fd1debba2
Author: Vivek Goyal <vgoyal@...hat.com>
Date:   Mon Mar 7 21:09:32 2011 +0100

    blk-throttle: Some cleanups and race fixes in limit  update code

Thanks
Vivek
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