linux-kernel - Re: [PATCH] mm: add PTE pointer parameter to flush_tlb_fix_spurious

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Message-ID: <a5c9b925-57ac-eeab-6258-0ff9fed16af7@redhat.com>
Date:   Wed, 8 Mar 2023 19:13:56 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Matthew Wilcox <willy@...radead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Will Deacon <will@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        linux-mips <linux-mips@...r.kernel.org>,
        linux-power <linuxppc-dev@...ts.ozlabs.org>,
        linux-x86 <x86@...nel.org>,
        linux-s390 <linux-s390@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-mm <linux-mm@...ck.org>
Subject: Re: [PATCH] mm: add PTE pointer parameter to
 flush_tlb_fix_spurious_fault()

On 06.03.23 17:15, Gerald Schaefer wrote:
> s390 can do more fine-grained handling of spurious TLB protection faults,
> when there also is the PTE pointer available.
> 
> Therefore, pass on the PTE pointer to flush_tlb_fix_spurious_fault() as
> an additional parameter.
> 
> This will add no functional change to other architectures, but those with
> private flush_tlb_fix_spurious_fault() implementations need to be made
> aware of the new parameter.
> 
> Reviewed-by: Alexander Gordeev <agordeev@...ux.ibm.com>
> Signed-off-by: Gerald Schaefer <gerald.schaefer@...ux.ibm.com>
> ---

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Thanks,

David / dhildenb