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Date: Fri, 3 Aug 2012 10:10:34 +0800
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Subject: Re: [patch 1/2]block: handle merged discard request
From: Shaohua Li <shli@kernel.org>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>, Vivek Goyal <vgoyal@redhat.com>,
        axboe@kernel.dk, linux-kernel@vger.kernel.org, neilb@suse.de
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2012/6/22 Martin K. Petersen <martin.petersen@oracle.com>:
>>>>>> "Christoph" == Christoph Hellwig <hch@infradead.org> writes:
>
>>> There are several additional commands in the pipeline where the 1:1
>>> mapping between DMA size and block range is invalid. I want to get
>>> rid of the 1:1 assumption in general so we can handle any command
>>> without these evil workarounds.
>
> Christoph> What's the progress on getting these issues sorted out?
>
> This has bitrotted for a while. I'll put it on my list. I should finally
> have some bandwidth again next week...

Any update on this? If this will not happen soon, should we just disable
discard request merge now?

Thanks,
Shaohua