linux-kernel - Re: [PATCH V1] mmc: core: fix still flush cache when eMMC cache off

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Message-id: <2636452.c51ovjH1JX@amdc3058>
Date:   Mon, 20 Mar 2017 12:35 +0100
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     "Bean Huo (beanhuo)" <beanhuo@...ron.com>
Cc:     "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "shawn.lin@...k-chips.com" <shawn.lin@...k-chips.com>,
        "adrian.hunter@...el.com" <adrian.hunter@...el.com>,
        "axboe@...com" <axboe@...com>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Zoltan Szubbocsev (zszubbocsev)" <zszubbocsev@...ron.com>
Subject: Re: [PATCH V1] mmc: core: fix still flush cache when eMMC cache off

On Sunday, March 19, 2017 12:45:40 AM Bean Huo wrote:
> This patch fixes the issue that mmc_blk_issue_rq still
> flushes cache when eMMC cache has already been off
> through user space tool, such as mmc-utils.
> The reason is that card->ext_csd.cache_ctrl isn't reset.
> 
> Signed-off-by: beanhuo <beanhuo@...ron.com>

Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics