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Date:   Tue, 25 May 2021 12:18:03 +0200
From:   Borislav Petkov <bp@alien8.de>
To:     Brijesh Singh <brijesh.singh@amd.com>
Cc:     x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
        tglx@linutronix.de, jroedel@suse.de, thomas.lendacky@amd.com,
        pbonzini@redhat.com, mingo@redhat.com, dave.hansen@intel.com,
        rientjes@google.com, seanjc@google.com, peterz@infradead.org,
        hpa@zytor.com, tony.luck@intel.com
Subject: Re: [PATCH Part1 RFC v2 11/20] x86/compressed: Add helper for
 validating pages in the decompression stage
Message-ID: <YKzO2+Dwb5ABKFyF@zn.tnic>
References: <20210430121616.2295-1-brijesh.singh@amd.com>
 <20210430121616.2295-12-brijesh.singh@amd.com>
 <YKah5QInPK4+7xaC@zn.tnic>
 <921408d1-a399-7089-8647-f9617eb12919@amd.com>
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On Thu, May 20, 2021 at 01:05:15PM -0500, Brijesh Singh wrote:
> Maybe I am missing something, the statement above was executed for
> either set or clr but the page shared need to happen only for clr. So,
> from code readability point I kept it outside of that if().
> 
> Otherwise we may have to do something like.
> 
> ...
> 
> if ((set | clr) & _PAGE_EN) {
> 
>    if (clr)
> 
>     snp_set_page_shared(pte_pfn(*ptep) << PAGE_SHIFT);
> 
>   }
> 
> I am okay with above is the preferred approach.

Yes pls, because it keeps the _PAGE_ENC handling together in one
statement.

Thx.

-- 
Regards/Gruss,
    Boris.

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