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Subject: Re: [PATCH 1/3] Protectable memory support
To: Jerome Glisse <jglisse@redhat.com>
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References: <20170705134628.3803-1-igor.stoppa@huawei.com>
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From: Igor Stoppa <igor.stoppa@huawei.com>
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Date: Mon, 10 Jul 2017 18:15:53 +0300
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On 07/07/17 21:48, Jerome Glisse wrote:

> I believe there is enough unuse field that for vmalloc pages that
> you should find one you can use. Just add some documentation in
> mm_types.h so people are aware of alternate use for the field you
> are using.


I ended up using page->private and the corresponding bit.
Because page-private is an opaque field, specifically reserved for the
allocator, I think it should not be necessary to modify mm_types.h

The reworked patch is here:
https://marc.info/?l=linux-mm&m=149969928920772&w=2

--
thanks, igor