From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: linux-sgx@vger.kernel.org, luto@kernel.org, cedric.xing@intel.com
Subject: Re: [PATCH RFC] x86/sgx: Do not increase encl->refcount for VMAs
Date: Thu, 20 Jun 2019 22:08:12 +0300 [thread overview]
Message-ID: <20190620190812.GA15383@linux.intel.com> (raw)
In-Reply-To: <20190619153419.GE1203@linux.intel.com>
On Wed, Jun 19, 2019 at 08:34:19AM -0700, Sean Christopherson wrote:
> > Sent another similar change just now for the page adder. Can you
> > check that so I can merge.
> >
> > I have a change in progress that will make the reclaimer also the
> > reaper and remove the need for the refcount altogether. Try to
> > get it possibly tonight out (i.e. daytime for you).
>
> I'm about to disappear on vacation for two weeks, can you post whatever
> you have, even if it's half baked?
>
> I have a working patch to use mmu_notifier.release() instead of per-vma
> refcounting, I'll post an RFC today. It'd be nice to have both approaches
> posted so that folks can weigh in on the options for dropping .vm_close().
I peeked your patch and it deals with the encl_mm->refcount. My changes
deal with the encl->refcount (consolidating the driver to only use
file's refcount).
/Jarkko
prev parent reply other threads:[~2019-06-20 19:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 16:30 [PATCH RFC] x86/sgx: Do not increase encl->refcount for VMAs Jarkko Sakkinen
2019-06-13 16:30 ` Jarkko Sakkinen
2019-06-17 16:40 ` Jarkko Sakkinen
2019-06-17 16:52 ` Sean Christopherson
2019-06-19 12:46 ` Jarkko Sakkinen
2019-06-19 15:34 ` Sean Christopherson
2019-06-20 19:08 ` Jarkko Sakkinen [this message]
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