Re: [PATCH 07/14] scsi: convert host_busy to atomic_t

From: Martin K. Petersen
Date: Tue Jul 22 2014 - 00:03:43 EST


>>>>> "Christoph" == Christoph Hellwig <hch@xxxxxx> writes:

Christoph> Avoid taking the host-wide host_lock to check the per-host
Christoph> queue limit. Instead we do an atomic_inc_return early on to
Christoph> grab our slot in the queue, and if nessecary decrement it
necessary

Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

--
Martin K. Petersen Oracle Linux Engineering
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/