From: Christoph Hellwig <hch@lst.de>
To: Shaun Tancheff <shaun.tancheff@seagate.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>,
Jens Axboe <axboe@fb.com>, Christoph Hellwig <hch@lst.de>,
Ulf Hansson <ulf.hansson@linaro.org>,
linux-mmc@vger.kernel.org, linux-block@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
Josh Bingaman <josh.bingaman@seagate.com>
Subject: Re: [PATCH] block: Fix secure erase
Date: Mon, 15 Aug 2016 20:14:57 +0200 [thread overview]
Message-ID: <20160815181457.GA9781@lst.de> (raw)
In-Reply-To: <CAJVOszDxKmaEEsg49yMT+Vr8oNbKLmgAGJ_P9KNa=zQcqcx+CQ@mail.gmail.com>
On Mon, Aug 15, 2016 at 11:43:12AM -0500, Shaun Tancheff wrote:
> Hmm ... Since REQ_SECURE implied REQ_DISCARD doesn't this
> mean that we should include REQ_OP_SECURE_ERASE checking
> wherever REQ_OP_DISCARD is being checked now in drivers/scsi/sd.c ?
>
> (It's only in 3 spots so it's a quickie patch)
SCSI doesn't support secure erase operations. Only MMC really
supports it, plus the usual cargo culting in Xen blkfront that's
probably never been tested..
next prev parent reply other threads:[~2016-08-15 18:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-11 8:43 [REGRESSION] Secure discard is broken Adrian Hunter
2016-08-11 14:05 ` Christoph Hellwig
2016-08-15 14:07 ` [PATCH] block: Fix secure erase Adrian Hunter
2016-08-15 16:43 ` Shaun Tancheff
2016-08-15 18:14 ` Christoph Hellwig [this message]
2016-08-16 7:20 ` Adrian Hunter
2016-08-17 0:52 ` Christoph Hellwig
2016-08-15 18:13 ` Christoph Hellwig
2016-08-15 18:16 ` Jens Axboe
2016-08-15 18:17 ` Christoph Hellwig
2016-08-16 7:59 ` [PATCH V2] " Adrian Hunter
2016-08-16 16:15 ` Christoph Hellwig
2016-08-19 11:52 ` Ulf Hansson
2016-08-19 15:14 ` Jens Axboe
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