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[209.85.208.53]) by smtp.gmail.com with ESMTPSA id l2-20020a056402344200b00525658b7d3fsm4503353edc.45.2023.08.16.11.51.13 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Aug 2023 11:51:14 -0700 (PDT) Received: by mail-ed1-f53.google.com with SMTP id 4fb4d7f45d1cf-5257f2c0773so1873519a12.2 for ; Wed, 16 Aug 2023 11:51:13 -0700 (PDT) X-Received: by 2002:a05:6402:1854:b0:525:69ec:e1c8 with SMTP id v20-20020a056402185400b0052569ece1c8mr1797634edy.40.1692211873612; Wed, 16 Aug 2023 11:51:13 -0700 (PDT) MIME-Version: 1.0 References: <03730b50cebb4a349ad8667373bb8127@AcuMS.aculab.com> <20230816120741.534415-1-dhowells@redhat.com> <20230816120741.534415-3-dhowells@redhat.com> <608853.1692190847@warthog.procyon.org.uk> <3dabec5643b24534a1c1c51894798047@AcuMS.aculab.com> In-Reply-To: <3dabec5643b24534a1c1c51894798047@AcuMS.aculab.com> From: Linus Torvalds Date: Wed, 16 Aug 2023 18:50:56 +0000 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v3 2/2] iov_iter: Don't deal with iter->copy_mc in memcpy_from_iter_mc() To: David Laight Cc: David Howells , Al Viro , Jens Axboe , Christoph Hellwig , Christian Brauner , Matthew Wilcox , Jeff Layton , "linux-fsdevel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 2F73FA0005 X-Stat-Signature: o38949rnpf1wdxidrehqknnck763p5dw X-Rspam-User: X-HE-Tag: 1692211877-450123 X-HE-Meta: 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 nA8hqSQX vpTa38WmTEoja8iVA7ilbczxZNSanNu4XWAh2ZbDFm5y8eZvZKJB7cWdn/9wXdc+imXznQiTOPgcMq4xFrlNvN3bomH/nVQUXhz8PrXsH5eQ5/wkrxKcMigLa+bXxMhXj8z7TWkM93xA7g6dOp1TIWMj4D28SUVRrUJV0rszEhHEhX4W6uq4kWksu5tzoBh5gouNGC021D9+7XZt2j74mWbjqUYC9SR928j2qr5a1SM4WI7MImOIHsLg4K2PlLyfuRCpHjP1d8KF64cq4XloLjr3M4OiyQs4RyZc2YizKM5n5suNdhFNDPdE7kXo5vI/BG/Vp6onzZM1Ss477aa/vGR3zxkbL/STUv0vIqRvU8QjMXQCbPyVvDlixTV/TmMT7ylCRHVqyJcv9OCJbVWC9NaGZEV2PYVL9dt0+RTyulhT3AE6iQE04AO6DXtlM36b1HMXdxIWJ1cDQsVydkgbj5MeBuTamGIrh8+zTOSGu4Z7B9hfYuMGj1rtDPUnkzGMgmDXzecpnwE53JuDBNvlj6Y5EY1RNmEOr/KXtMlPTMzfV8hLdxJ/Mc9zaRsO5oUPh62JyS+yAqYQ5LCHEEc/hLzXbl6pkn5ZsDJVFykIrUatMk05raEnZkD68E7+46tnsOAk/1FK5cFpSHqo= 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 Wed, 16 Aug 2023 at 14:19, David Laight wrote: > > What about ITER_BVEC_MC ?? That probably would be the best option. Just make it a proper ITER_xyz, instead of an odd sub-case for one ITER (but set up in such a way that it looks like it might happen for other ITER_xyz cases). Linus