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Subject: Re: [RFC PATCH v4 09/27] x86/mm: Change _PAGE_DIRTY to
 _PAGE_DIRTY_HW
From:   Yu-cheng Yu <yu-cheng.yu@intel.com>
To:     Matthew Wilcox <willy@infradead.org>
Cc:     x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
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Date:   Wed, 03 Oct 2018 09:07:52 -0700
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On Wed, 2018-10-03 at 06:38 -0700, Matthew Wilcox wrote:
> On Fri, Sep 21, 2018 at 08:03:33AM -0700, Yu-cheng Yu wrote:
> > We are going to create _PAGE_DIRTY_SW for non-hardware, memory
> > management purposes.  Rename _PAGE_DIRTY to _PAGE_DIRTY_HW and
> > _PAGE_BIT_DIRTY to _PAGE_BIT_DIRTY_HW to make these PTE dirty
> > bits more clear.  There are no functional changes in this
> > patch.
> 
> I would like there to be some documentation in this patchset which
> explains the difference between PAGE_SOFT_DIRTY and PAGE_DIRTY_SW.

I will add some comments for the difference between PAGE_SOFT_DIRTY and
PAGE_DIRTY_SW.

Yu-cheng