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Re: Ext4 and xfs problems in dm-thin on allocation and discard

To: Mike Snitzer <snitzer@xxxxxxxxxx>
Subject: Re: Ext4 and xfs problems in dm-thin on allocation and discard
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Sun, 01 Jul 2012 16:53:52 +0200
Cc: Dave Chinner <david@xxxxxxxxxxxxx>, Spelic <spelic@xxxxxxxxxxxxx>, device-mapper development <dm-devel@xxxxxxxxxx>, linux-ext4@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, axboe@xxxxxxxxx, hch@xxxxxxxxxxxxx
In-reply-to: <20120621174742.GA27837@xxxxxxxxxx>
References: <4FDF9EBE.2030809@xxxxxxxxxxxxx> <20120619015745.GJ25389@dastard> <4FE1BDF3.4080702@xxxxxxxxxxxxx> <20120620225327.GL30705@dastard> <20120621174742.GA27837@xxxxxxxxxx>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0
Il 21/06/2012 19:47, Mike Snitzer ha scritto:
> Paolo Bonzini fixed blkdev_issue_discard to properly align some time
> ago; unfortunately the patches slipped through the cracks (cc'ing Paolo,
> Jens, and Christoph).
> 
> Here are references to Paolo's patches:
> 0/2 https://lkml.org/lkml/2012/3/14/323
> 1/2 https://lkml.org/lkml/2012/3/14/324
> 2/2 https://lkml.org/lkml/2012/3/14/325
> 
> Patch 2/2 specifically addresses the case where:
>  discard_max_bytes == discard_granularity 
> 
> Paolo, any chance you could resend to Jens (maybe with hch's comments on
> patch#2 accounted for)?  Also, please add hch's Reviewed-by when
> reposting.

Sure, I'll do it this week.  I just need to retest.

Paolo

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