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SubjectRe: [PATCH v24 12/24] x86/sgx: Linux Enclave Driver
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On Fri, 29 Nov 2019 17:13:14 -0600, Jarkko Sakkinen  
<jarkko.sakkinen@linux.intel.com> 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

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