Re: Concurrent SG_SCSI_RESET ioctls

[Douglas Gilbert <dgilbert@interlog.com>]

On 14-10-14 07:13 AM, Christoph Hellwig wrote:
> On Sat, Oct 11, 2014 at 10:06:47PM +0000, Elliott, Robert (Server Storage) wrote:
>> Thanks.  That's a bit better, but sg_reset can now run into
>> "No such device" errors.
>
> That's the -ENODEV we return if another reset is in progress.  Given
> that I suspect sg_reset is the prime if not only user of this interface
> I'm happy to change the error code we return here to anything Doug
> agrees to.

I don't mind if you change it. However I plan to release
sg3_utils-1.40 in the next 2 or 3 weeks, so that would
be the earliest a revised sg_reset would be available for
distros. Improving error reports is something I always
like to do (so ENODEV for the "in progress" case seems a
bit strident).

On the other hand, the existing sg_reset code with --no-esc
has been in place since sg3_utils-1.36 [20130531]. So there
is a good chance current distributions have that version or
later.

Doug Gilbert