From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD65DC4743C for ; Sat, 5 Jun 2021 01:43:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BD1C6613C9 for ; Sat, 5 Jun 2021 01:43:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231478AbhFEBp0 (ORCPT ); Fri, 4 Jun 2021 21:45:26 -0400 Received: from mail-pj1-f53.google.com ([209.85.216.53]:42871 "EHLO mail-pj1-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230185AbhFEBp0 (ORCPT ); Fri, 4 Jun 2021 21:45:26 -0400 Received: by mail-pj1-f53.google.com with SMTP id l23-20020a17090a0717b029016ae774f973so6209781pjl.1; Fri, 04 Jun 2021 18:43:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=HN/yxlFRhCXI2lz6pRuRsVES8dA6IrWBhzB/BkiqJsM=; b=N0fg6MCuH9s4HsYj1nxf2+QZ+2ZtLPsunpN49Xp5z9VUsR5/shhK52a/meE/srVFid ft3AwOKvuTu/Ow2IgqFiVkW+hUu4T7Ionoz8cv1WWEoa5akwrzvX7R5m2v5rgExT+PF/ 80Sawjo8WzzUNSO196wSDIAJeVG//SnGL/MQYgOknM38h4n7joShRzKzbxANFS1n4ErI 0waMLNoO0AdM0p+GbsvLSeQQaM3zAG+RNT/VsygJupHzRbiVdrvw3HkJXTiRWHSSZE2N SYuLVx7C6U51dFDBdLP7UeYGg5fDNixmKSsgJtcyUcv3cfd2uaIt1Nmq+H0oB3m4TYVt wCMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=HN/yxlFRhCXI2lz6pRuRsVES8dA6IrWBhzB/BkiqJsM=; b=LvwlZ+Bo4/z/KA1zUX4V0TlXM+eXpJuX4tdRZIabUyoIu6dndRxNpfEATfeJjk1ir0 J9pLn5vQUPAYaLJqlxeQs0BzK525mBxzjYeX7WOXcXmufXvh/btM49WSI1WlLayfnOrt dC9i+tu38j+S5Zi/1IKyw0LSp3iPejGqP7nA//s5CNkpweFQsBbcf29eTCWls35KhBin vXFPhRJBU53ZKPNWwuDk5dqzKtHAd4XP83RmvmGe8cVaH8hQMZmIjDpkSZvomJB53t+R xCfhbKQL80IUOIOWhp4AElCo+RmVAyzRH+k/RCwz6Fnl6dY0T2/JfT7Ge44nIOexKqES KUVA== X-Gm-Message-State: AOAM532zvOX0EQVAfiSeYvLIlD+Oe6hXH/DVJf6j+B6Bbk6MtFVSv1SM fOsml5zNvwwaPymruBVqF/k= X-Google-Smtp-Source: ABdhPJzIPBaIsLM9CINwZgXyOGPdZc74cQHpiU2KKEGygcnKSh9Gm9bVFr7pTSjQUx6UdhKyvKVXDg== X-Received: by 2002:a17:902:eccb:b029:106:def0:2717 with SMTP id a11-20020a170902eccbb0290106def02717mr7216193plh.66.1622857346021; Fri, 04 Jun 2021 18:42:26 -0700 (PDT) Received: from bobo.ozlabs.ibm.com (60-242-147-73.tpgi.com.au. [60.242.147.73]) by smtp.gmail.com with ESMTPSA id q68sm5779056pjq.45.2021.06.04.18.42.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jun 2021 18:42:25 -0700 (PDT) From: Nicholas Piggin To: Andrew Morton Cc: Nicholas Piggin , Randy Dunlap , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, Anton Blanchard , Andy Lutomirski Subject: [PATCH v4 0/4] shoot lazy tlbs Date: Sat, 5 Jun 2021 11:42:12 +1000 Message-Id: <20210605014216.446867-1-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org The additional unused config option was a valid criticism, so this now purely just toggles refcounting of the lazy tlb mm. Thanks, Nick Since v3: - Removed the extra config option, MMU_LAZY_TLB=n. This can be resurrected if an arch wants it. Nicholas Piggin (4): lazy tlb: introduce lazy mm refcount helper functions lazy tlb: allow lazy tlb mm refcounting to be configurable lazy tlb: shoot lazies, a non-refcounting lazy tlb option powerpc/64s: enable MMU_LAZY_TLB_SHOOTDOWN arch/Kconfig | 17 ++++++++++ arch/arm/mach-rpc/ecard.c | 2 +- arch/powerpc/Kconfig | 1 + arch/powerpc/kernel/smp.c | 2 +- arch/powerpc/mm/book3s64/radix_tlb.c | 4 +-- fs/exec.c | 4 +-- include/linux/sched/mm.h | 20 +++++++++++ kernel/cpu.c | 2 +- kernel/exit.c | 2 +- kernel/fork.c | 51 ++++++++++++++++++++++++++++ kernel/kthread.c | 11 +++--- kernel/sched/core.c | 35 +++++++++++++------ kernel/sched/sched.h | 4 ++- 13 files changed, 132 insertions(+), 23 deletions(-) -- 2.23.0