On Wed, 18 Jun 2014, JP Abgrall wrote:

Date: Wed, 18 Jun 2014 14:51:42 -0700
From: JP Abgrall <redacted>
To: Lukáš Czerner <redacted>
Cc: Theodore Ts'o <tytso@mit.edu>, Dave Chinner <david@fromorbit.com>,
    Eric Sandeen [off-list ref], linux-ext4@vger.kernel.org,
    Geremy Condra [off-list ref],
    "linux-fsdevel@vger.kernel.org" [off-list ref]
Subject: Re: [PATCH] ext4: Add support for SFITRIM,
    an ioctl for secure FITRIM.

On Wed, Jun 18, 2014 at 2:33 AM, Lukáš Czerner [off-list ref] wrote:

quoted

Except when it does not. Looking at the mmc driver I can see that we
have already some devices where secure trim is broken.

And that is why we don't just blindly use random eMMC devices.

'we' as in ... ? Remember, you're not the only one using this code.

quoted

Let's call is deep discard, or whatever but avoid the security word
at least when file system comes into play.

Best effort discard :)
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html