Thanks, merged into the next branch of e2fsprogs

						- Ted

On Mon, Jan 24, 2011 at 08:52:00PM +0100, Lukas Czerner wrote:

(V2: remove MB macro)

For some time now we are doing initial discard of the device prior to
filesystem creation. However, there is no feedback for the user and
hence on some devices with slow TRIM implementation it may appear that
mke2fs is stuck.

This commit introduce new function mke2fs_discard_device(), which is a
wrapper for io_channel_discard(). The discard is done per-partes and
discard progress is being reported back to the user. The discard step
has been set to 2GB size, which works reasonably well on both slow and
fast devices.

I gave up on doing fancy things like align discard according to
discard_alignment, checking for discard granularity and computing
estimate time. First of all, because it would require either new ioctl
to retrieve those information or use of libudev library, none of it
seems to be worth it. Regarding discard_granularity, I doubt there is
any sane device with discard granularity that big it would affect this.

Signed-off-by: Lukas Czerner <redacted>