linux-kernel - Re: [PATCH v3] mmc: card: Adding support for sanitize in eMMC 4.5

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Message-ID: <87ppwdr70h.fsf@octavius.laptop.org>
Date:	Sun, 26 May 2013 13:22:06 -0400
From:	Chris Ball <cjb@...top.org>
To:	Maya Erez <merez@...eaurora.org>
Cc:	linux-mmc@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	Yaniv Gardi <ygardi@...eaurora.org>,
	linux-kernel@...r.kernel.org (open list)
Subject: Re: [PATCH v3] mmc: card: Adding support for sanitize in eMMC 4.5

Hi Maya,

On Thu, Apr 18 2013, Maya Erez wrote:
> The sanitize support is added as a user-app ioctl call, and
> was removed from the block-device request, since its purpose is
> to be invoked not via File-System but by a user.
> This feature deletes the unmap memory region of the eMMC card,
> by writing to a specific register in the EXT_CSD.
> unmap region is the memory region that was previously deleted
> (by erase, trim or discard operation).
> In order to avoid timeout when sanitizing large-scale cards,
> the timeout for sanitize operation is 240 seconds.
>
> Signed-off-by: Yaniv Gardi <ygardi@...eaurora.org>
> Signed-off-by: Maya Erez <merez@...eaurora.org>

Thanks, pushed to mmc-next for 3.11.

- Chris.
-- 
Chris Ball   <cjb@...top.org>   <http://printf.net/>
One Laptop Per Child
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