linux-kernel - Re: QUEUE_FLAG_CLUSTER: not working in 2.6.24 ?

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Message-ID: <47619383.3050508@rtr.ca>
Date:	Thu, 13 Dec 2007 15:18:11 -0500
From:	Mark Lord <liml@....ca>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Mark Lord <lkml@....ca>, Matthew Wilcox <matthew@....cx>,
	IDE/ATA development list <linux-ide@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: Re: QUEUE_FLAG_CLUSTER: not working in 2.6.24 ?

Mark Lord wrote:
> Jens Axboe wrote:
..
>> OK, it's a vm issue, I have tens of thousand "backward" pages after a
>> boot - IOW, bvec->bv_page is the page before bvprv->bv_page, not
>> reverse. So it looks like that bug got reintroduced.
> ...
> 
> Mmm.. shouldn't one of the front- or back- merge logics work for either order?
..

Belay that thought.  I'm slowly remembering how this is supposed to work now.  :)
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