Re: [PATCH 1/9] scsi_debug: address races following module load

[Bart Van Assche <bvanassche@xxxxxxx>]

On 12/30/21 18:08, Douglas Gilbert wrote:
> +	if (READ_ONCE(sdebug_deflect_incoming)) {
> +		pr_info("Exit early due to deflect_incoming\n");
> +		return 1;
> +	}

The new mechanism will work fine on x86 but not on ARM systems. Please
change all READ_ONCE(sdebug_deflect_incoming) calls into
smp_load_acquire(&sdebug_deflect_incoming) and all
WRITE_ONCE(sdebug_deflect_incoming) calls into
smp_store_release(&sdebug_deflect_incoming).

Thanks,

Bart.