From: JP Abgrall <jpa@google.com>
To: "Theodore Ts'o" <tytso@mit.edu>
Cc: "Lukáš Czerner" <lczerner@redhat.com>,
"Dave Chinner" <david@fromorbit.com>,
"Eric Sandeen" <sandeen@redhat.com>,
linux-ext4@vger.kernel.org, "Geremy Condra" <gcondra@google.com>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH] ext4: Add support for SFITRIM, an ioctl for secure FITRIM.
Date: Tue, 17 Jun 2014 10:53:21 -0700 [thread overview]
Message-ID: <CAKP4w2QSUYYFVeM2_a7iMybnad_A27WEx3K=qiMf-_namjvS-A@mail.gmail.com> (raw)
In-Reply-To: <20140617135405.GA5054@thunk.org>
On Tue, Jun 17, 2014 at 6:54 AM, Theodore Ts'o <tytso@mit.edu> wrote:
>
> There's an assumption here that the eMMC SECDISCARD functionality is
> more competently spec'ed out compared to the ATA/SCSI interface. I'm
> not sure whether or not that's true, but perhaps JP and Geremy can
> confirm that.
We only care about the eMMC spec. In the eMMC spec there is no room
for ignoring the commands. If the card declares it can do a secure
erase/trim it must do it as per the spec.
JEDEC Standard No. 84-A441
7.6.9 Secure Erase
7.6.10 Secure Trim
next prev parent reply other threads:[~2014-06-17 17:53 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1402625647-31439-1-git-send-email-jpa@google.com>
2014-06-13 2:36 ` [PATCH] ext4: Add support for SFITRIM, an ioctl for secure FITRIM Eric Sandeen
2014-06-13 3:02 ` JP Abgrall
2014-06-13 3:12 ` Eric Sandeen
2014-06-13 3:19 ` JP Abgrall
2014-06-13 3:24 ` Eric Sandeen
2014-06-13 4:37 ` JP Abgrall
2014-06-13 3:15 ` Dave Chinner
2014-06-13 3:30 ` Dave Chinner
2014-06-13 4:37 ` JP Abgrall
2014-06-13 5:07 ` Dave Chinner
2014-06-13 14:20 ` Theodore Ts'o
2014-06-13 14:31 ` Theodore Ts'o
2014-06-13 19:44 ` JP Abgrall
2014-06-13 19:57 ` Eric Sandeen
2014-06-13 20:12 ` JP Abgrall
2014-06-13 23:41 ` Theodore Ts'o
2014-06-14 0:46 ` JP Abgrall
2014-06-17 2:49 ` Dave Chinner
2014-06-17 11:27 ` Theodore Ts'o
2014-06-17 11:55 ` Lukáš Czerner
2014-06-17 12:46 ` Theodore Ts'o
2014-06-17 13:00 ` Lukáš Czerner
2014-06-17 13:54 ` Theodore Ts'o
2014-06-17 17:53 ` JP Abgrall [this message]
2014-06-18 9:33 ` Lukáš Czerner
2014-06-18 21:51 ` JP Abgrall
2014-06-19 8:10 ` Lukáš Czerner
2014-06-18 22:06 ` Theodore Ts'o
2014-06-19 0:36 ` Dave Chinner
2014-06-19 8:15 ` Lukáš Czerner
2014-06-20 2:44 ` Martin K. Petersen
2014-06-19 8:33 ` Lukáš Czerner
2014-06-17 17:35 ` JP Abgrall
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