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[209.85.210.50]) by smtp.gmail.com with ESMTPSA id g3-20020a544f83000000b0035a5b95bd38sm3895197oiy.54.2022.11.08.12.19.14 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Nov 2022 12:19:15 -0800 (PST) Received: by mail-ot1-f50.google.com with SMTP id f4-20020a056830264400b0066c8e56828aso7297168otu.1 for ; Tue, 08 Nov 2022 12:19:14 -0800 (PST) X-Received: by 2002:a0d:ef07:0:b0:373:5257:f897 with SMTP id y7-20020a0def07000000b003735257f897mr35789530ywe.401.1667938743084; Tue, 08 Nov 2022 12:19:03 -0800 (PST) MIME-Version: 1.0 References: <8a1e97c9-bd5-7473-6da8-2aa75198fbe8@google.com> <20221108200345.xxcvnsnwgjyb7w3a@meerkat.local> In-Reply-To: <20221108200345.xxcvnsnwgjyb7w3a@meerkat.local> From: Linus Torvalds Date: Tue, 8 Nov 2022 12:18:47 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: mm: delay rmap removal until after TLB flush To: Konstantin Ryabitsev Cc: Johannes Weiner , Hugh Dickins , Stephen Rothwell , Alexander Gordeev , Peter Zijlstra , Will Deacon , Aneesh Kumar , Nick Piggin , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Nadav Amit , Jann Horn , John Hubbard , X86 ML , Matthew Wilcox , Andrew Morton , kernel list , Linux-MM , Andrea Arcangeli , "Kirill A . Shutemov" , Joerg Roedel , Uros Bizjak , Alistair Popple , linux-arch Content-Type: text/plain; charset="UTF-8" ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1667938757; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=rYTJsr3y3DSpzuW7jbv9zORF+HiPBsmrV3dtI+qjb2g=; b=bki5IyUCyPDSA5SqvJh6g4QkYEmXIheqQRGy4hPn665TP3nb1PMiGJrKxALQRnbS4a3w/3 /zQqq00RhD6XwYK5nnk9zLOHa8DEuMN0HLwHtRvF7D8txfwuWN2+FQmItUaV4p6ua29JBs NJmoLaon5AWjzKDVgCCt3ouH4cQnwCk= ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b="RktMLy/W"; spf=pass (imf20.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.210.51 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1667938757; a=rsa-sha256; cv=none; b=upXmE9c+/ifqiQW/PrKT4zo3KXRWHd537He51VVCw/J2FP96AuT74iAdmgW6bHn8vYKk4l ojGUoAoK8KO11y5s3JMX3YpLzMO4Z9lCSVmebPwtxFZYJeGgHf2y0HkPYQQnX90IAXLhdz Rw+TCZ9IVI3sfn3fXYeJkVKug2+wmTM= X-Rspamd-Queue-Id: C10511C0006 Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b="RktMLy/W"; spf=pass (imf20.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.210.51 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org; dmarc=none X-Rspamd-Server: rspam10 X-Rspam-User: X-Stat-Signature: whdmhiobcnsz9atxjo1day8bkoewkdq7 X-HE-Tag: 1667938757-180248 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 Tue, Nov 8, 2022 at 12:03 PM Konstantin Ryabitsev wrote: > > Yes, --no-parent. Ahh, that's new. I guess I need to update my ancient b4-0.8.0 install.. But yes, with that, and the manual parent lookup (because otherwise "--no-parent" will fetch *just* the patch itself, not even walking up the single parent chain). it works. Maybe a "--single-parent" or "--deadbeat-parent" option would be a good idea? Anyway, with a more recent b4 version, the command b4 am --no-parent CAHk-=wh6MxaCA4pXpt1F5Bn2__6MxCq0Dr-rES4i=MOL9ibjpg@mail.gmail.com gets that series and only that series. Linus