Re: [PATCH v2 2/2] x86/sgx: account backing pages

[Jarkko Sakkinen]

On Fri, Jan 14, 2022 at 04:16:41PM -0800, Dave Hansen wrote:
> On 1/14/22 3:57 PM, Jarkko Sakkinen wrote:
> > Would it be a too big tretch to add these and make the whole scheme
> > fully legit? Does not sound like an extremely huge stretch and there is now
> > a full cycle amount of time make it happen before 5.18 merge window.
> 
> No, it's not a big stretch.  If anyone wants it for 5.18 (or whatever)
> just send the patch.

Fixing this to work with the current mainline is first and foremost
needed:

https://lore.kernel.org/linux-sgx/YeHqW8AaQ3HZZoQx@xxxxxx/T/#t

With a fixeed version of that, wouldn't it be then just matter of calling
shmem_getpage() with SGX_NOALLOC to check the state of the file in both
calls?

/Jarkko