> "Christoph" == Christoph Hellwig writes:
Christoph> This saves us an atomic operation for each I/O submission and
Christoph> completion for the usual case where the driver doesn't set a
Christoph> per-target can_queue value. Only a few iscsi hardware
Christoph> offload drivers set the per-
On Wed, Jul 09, 2014 at 01:19:41PM +0200, Hannes Reinecke wrote:
>>host_not_ready:
>> -atomic_dec(&scsi_target(sdev)->target_busy);
>> +if (scsi_target(sdev)->can_queue > 0)
>> +atomic_dec(&scsi_target(sdev)->target_busy);
>>not_ready:
>> /*
>> * lock q, handl
On 06/25/2014 06:51 PM, Christoph Hellwig wrote:
This saves us an atomic operation for each I/O submission and completion
for the usual case where the driver doesn't set a per-target can_queue
value. Only a few iscsi hardware offload drivers set the per-target
can_queue value at the moment.
Sig
On Sat, Jun 21, 2014 at 10:10:14PM +, Elliott, Robert (Server Storage)
wrote:
> > not_ready:
> > /*
> > * lock q, handle tag, requeue req, and decrement device_busy. We
>
> There's an extra & in that if statement.
Indeed, this crept in during a rebase and a later patch fixes it.
> -Original Message-
> From: Christoph Hellwig [mailto:h...@lst.de]
> Sent: Thursday, 12 June, 2014 8:49 AM
> To: James Bottomley
> Cc: Jens Axboe; Bart Van Assche; Elliott, Robert (Server Storage); linux-
> s...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: [PATCH 10/14] scsi:
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