On Sun, 30 Dec 2018, Christoph Hellwig wrote:

On Thu, Dec 27, 2018 at 11:09:44AM -0500, Mike Snitzer wrote:

quoted

- Fix various DM targets to check for device sector overflow if
  CONFIG_LBDAF is not set.

Question to Jens and Linus:

is there any good reason to keep the CONFIG_LBDAF=n option around?
Less than 2gig block devices seem to be an absolutele niche, and I
wonder if it is still worth maintaining the special case just for that.

The CONFIG_LBDAF limit is 2TiB, not 2GiB.

But you're right that 2TiB devices are common and that perhaps this option 
should go away.

Mikulas