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AJvYcCUvdDRfBf7f9CJHoz+XGGytTqpgiwulpcmohlVpZlEgvVxu0xYFB/cWSxXwtGYWh8tpgDnL17OSFg==@kvack.org X-Gm-Message-State: AOJu0Yzzwk2Cyvt9pDjp0GI0HVOne/+lvlfhMam3e8zZbevzmf32Z6E0 K+ISiPTt+Ml/Q/The7LRhK4tz42jIoyaBz2c5zW68iPWOH9lz9Pzaqd+4UUum6A= X-Google-Smtp-Source: AGHT+IEYNa9R0N8wqgDwoHxj2CHabmFiF6HV0qBrlR4ClkTvtY1S5Pva1b0yDaVRgo7GrflgHSlPAQ== X-Received: by 2002:a17:90b:1c10:b0:2c2:d11b:14dd with SMTP id 98e67ed59e1d1-2cf23f71108mr6401287a91.0.1722094212209; Sat, 27 Jul 2024 08:30:12 -0700 (PDT) Received: from [192.168.1.150] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2cdb74e873bsm7399538a91.40.2024.07.27.08.30.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 27 Jul 2024 08:30:11 -0700 (PDT) Message-ID: Date: Sat, 27 Jul 2024 09:30:10 -0600 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/7] minmax: reduce compilation time To: Linus Torvalds , Lorenzo Stoakes Cc: David Laight , "linux-kernel@vger.kernel.org" , "Matthew Wilcox (Oracle)" , Christoph Hellwig , Andrew Morton , Andy Shevchenko , Dan Carpenter , Arnd Bergmann , "Jason@zx2c4.com" , "pedro.falcato@gmail.com" , Mateusz Guzik , "linux-mm@kvack.org" References: <23bdb6fc8d884ceebeb6e8b8653b8cfe@AcuMS.aculab.com> <902a9bf3-9404-44e8-9063-03da3168146a@lucifer.local> <137646a7-7017-490d-be78-5bd5627609c3@lucifer.local> <36aa2cad-1db1-4abf-8dd2-fb20484aabc3@lucifer.local> Content-Language: en-US From: Jens Axboe In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: B3079180036 X-Stat-Signature: 1kxhhbp9wgmac3e3w8bkw77zwnuxij87 X-Rspam-User: X-HE-Tag: 1722094213-705663 X-HE-Meta: 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 4cckNWb5 Ga2K2fLdS7poWeJUakjo3e44yhw5V+JUcayx0osHAdf9ohmrlZ4RRh/m+m82WUmNUXwmPV7yLWl+BXWEQTwtvVqvy3iKTupRsxmdpPCKz7G7Coz20EEttw3sJZjZw2JoV13qZa/45NPK895mqkPVZPYfKmOwmXmvSLzrv5lAX1HJB9aLndUHsW0L4Ak3Q5c1stOvG0+j9vcN+YQC2WYfLk3WWAcjbQbzLpBuKndX79RR8zF9q0i8DJ3P43bb7QkaTZKlcXTLFhmjL9ZwjVIVnIgQhCDFz3/8XNdF0Hvd1lwwldzxzMKtMm7drXSBuofC2aw61dQg4b1pnqYtX38u3nFSl6lj7B2bAUUBB8R0LvWGMhDnhNY+v0d/My+8q3c0pPMCWtAc+KIrxZNY6s0z5+gYBX9KN+kQ0cnG4Yvky4Kzset0AYPaOS5Y5zdhBY0Tg/4JV 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: List-Subscribe: List-Unsubscribe: On 7/26/24 4:48 PM, Linus Torvalds wrote: > I didn't even look at what the issue was with the > bio_for_each_segment() expansion, in the hope that Jens will make that > one look better. I did take a quick look, pretty obviously bvec_iter_bvec() which makes it horrible, which came from Kent's immutable work quite a while ago. Not sure yet what to do about it, will spend some time on this next week. -- Jens Axboe