Re: [PATCH] ext4: Add support for SFITRIM, an ioctl for secure FITRIM.
From: JP Abgrall <hidden>
Date: 2014-06-17 17:53:21
Also in:
linux-fsdevel
On Tue, Jun 17, 2014 at 6:54 AM, Theodore Ts'o [off-list ref] 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