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[2003:cb:c71b:cb00:d372:1da8:9e9e:422d]) by smtp.gmail.com with ESMTPSA id n4-20020a05600c4f8400b003e20fa01a86sm201680wmq.13.2023.03.08.10.13.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 08 Mar 2023 10:13:58 -0800 (PST) Message-ID: Date: Wed, 8 Mar 2023 19:13:56 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH] mm: add PTE pointer parameter to flush_tlb_fix_spurious_fault() To: Gerald Schaefer , Andrew Morton Cc: Matthew Wilcox , Catalin Marinas , Anshuman Khandual , Will Deacon , Thomas Bogendoerfer , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , Alexander Gordeev , linux-mips , linux-power , linux-x86 , linux-s390 , LKML , linux-mm References: <20230306161548.661740-1-gerald.schaefer@linux.ibm.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20230306161548.661740-1-gerald.schaefer@linux.ibm.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Stat-Signature: ghdr6yrx7c96bi9gwuhkkarikp78ihs1 X-Rspam-User: X-Rspamd-Queue-Id: 1D630A001F X-Rspamd-Server: rspam06 X-HE-Tag: 1678299243-315318 X-HE-Meta: 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 d0uUD4cS I5HBXA7jZDzOFTjR277ENtBJ8drNn9jUp6ALyitv2ck3j94s5PqRjtIVWGbg7uT6hQjNwVDhG3XwiRlsK9GxtuJIoHoKL3KjjKcmvLZpWnCR86jfEKUCk3zOjBJX2Zdz+fkPou/iEieDC6V7/koRT3sqTra7mXZXMVMBXCpA2CeS5A4xckbyGoZdhpzjHYQcIj/B8W5PbxYFCciHbybanuwy03tW0180w9Hjsm7NVxVK5L9maquxq4u0cgCOBvcAs/RXMJZ3NJCrKD9aZFOs1VKBaItuvmu8J+hVA9TAUg0oOt/S+a3WIFjv/I/f4LVmiTnWvsXNLsMgIRDadXO6g3oL5eyx3jPkFC3YocSIAqUMsiOxAsYXKAC86Uu72dKkpDg+48AWngmP+yBo6ZtFsQSO8PQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 > Signed-off-by: Gerald Schaefer > --- Acked-by: David Hildenbrand -- Thanks, David / dhildenb