Re: [PATCH v24 12/24] x86/sgx: Linux Enclave Driver

["Haitao Huang" <haitao.huang@xxxxxxxxxxxxxxx>]

On Fri, 29 Nov 2019 17:13:14 -0600, Jarkko Sakkinen  
<jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:


> +
> +	for (c = 0 ; c < addp.length; c += PAGE_SIZE) {
> +		if (signal_pending(current)) {
> +			ret = -ERESTARTSYS;
> +			break;
> +		}

This IOC is not idempotent as pages EADDed at this point can not be  
re-EADDed again. So we can't return ERESTARTSYS

Haitao