linux-kernel - Re: [PATCH v9 02/42] mm: Move pte/pmd_mkwrite() callers with no VMA to

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Date:   Tue, 13 Jun 2023 16:19:46 +0000
From:   "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To:     "rppt@...nel.org" <rppt@...nel.org>
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Subject: Re: [PATCH v9 02/42] mm: Move pte/pmd_mkwrite() callers with no VMA
 to _novma()

On Tue, 2023-06-13 at 10:44 +0300, Mike Rapoport wrote:
> > Previous patches have done the first step, so next move the callers
> > that
> > don't have a VMA to pte_mkwrite_novma(). Also do the same for
> 
> I hear x86 maintainers asking to drop "previous patches" ;-)
> 
> Maybe
> This is the second step of the conversion that moves the callers ...

Really? I've not heard that. Just a strong aversion to "this patch".
I've got feedback to say "previous patches" and not "the last patch" so
it doesn't get stale. I guess it could be "previous changes".

> 
> > pmd_mkwrite(). This will be ok for the shadow stack feature, as
> > these
> > callers are on kernel memory which will not need to be made shadow
> > stack,
> > and the other architectures only currently support one type of
> > memory
> > in pte_mkwrite()
> > 
> > Cc: linux-doc@...r.kernel.org
> > Cc: linux-arm-kernel@...ts.infradead.org
> > Cc: linux-s390@...r.kernel.org
> > Cc: xen-devel@...ts.xenproject.org
> > Cc: linux-arch@...r.kernel.org
> > Cc: linux-mm@...ck.org
> > Signed-off-by: Rick Edgecombe <rick.p.edgecombe@...el.com>
> 
> Reviewed-by: Mike Rapoport (IBM) <rppt@...nel.org>

Thanks!