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Date:	Sat, 17 Jan 2015 16:09:52 -0800
From:	Greg KH <>
To:	Akira Hayakawa <>
Subject: Re: [PATCH v3] staging: writeboost: Add dm-writeboost

On Thu, Jan 01, 2015 at 05:44:39PM +0900, Akira Hayakawa wrote:
> This patch adds dm-writeboost to staging tree.
> dm-writeboost is a log-structured SSD-caching driver.
> It caches data in log-structured way on the cache device
> so that the performance is maximized.
> The merit of putting this driver in staging tree is
> to make it possible to get more feedback from users
> and polish the codes.
> v2->v3
> - rebased onto 3.19-rc2
> - Add read-caching support (disabled by default)
>   Several tests are pushed to dmts.
> - An critical bug fix
>   flush_proc shouldn't free the work_struct it's running on.
>   I found this bug while I am testing read-caching.
>   I am not sure why i didn't exhibit before but it's truly a bug.
> - Fully revised the README.
>   Now that we have read-caching support, the old README was completely obsolete.
> - Update TODO
>   Implementing read-caching is done.
> - bump up the copyright year to 2015
> - fix up comments
> Signed-off-by: Akira Hayakawa <>

I need an ack from a dm developer before I can take this.

greg k-h
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