Re: [PATCH 3/3] scsi: 3w-9xxx: rework lock timeouts

From: Martin K. Petersen
Date: Mon Nov 20 2017 - 22:08:13 EST


> The TW_IOCTL_GET_LOCK ioctl uses do_gettimeofday() to check whether a
> lock has expired. This can misbehave due to a concurrent
> settimeofday() call, as it is based on 'real' time, and it will
> overflow in y2038 on 32-bit architectures, producing unexpected
> results when used across the overflow time.
> This changes it to using monotonic time, using ktime_get() to simplify
> the code.

Applied to 4.16/scsi-queue, thanks!

Martin K. Petersen Oracle Linux Engineering