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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 7A4AEC2BAEE for ; Tue, 24 Mar 2020 04:46:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5AB8A20663 for ; Tue, 24 Mar 2020 04:46:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725935AbgCXEqH (ORCPT ); Tue, 24 Mar 2020 00:46:07 -0400 Received: from mx2.suse.de ([195.135.220.15]:39304 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725853AbgCXEqH (ORCPT ); Tue, 24 Mar 2020 00:46:07 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id EE759AE1C; Tue, 24 Mar 2020 04:46:04 +0000 (UTC) From: Davidlohr Bueso To: tglx@linutronix.de, pbonzini@redhat.com Cc: bigeasy@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, torvalds@linux-foundation.org, will@kernel.org, joel@joelfernandes.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, dave@stgolabs.net Subject: [PATCH -tip 0/4] kvm: Use rcuwait for vcpu blocking Date: Mon, 23 Mar 2020 21:44:49 -0700 Message-Id: <20200324044453.15733-1-dave@stgolabs.net> X-Mailer: git-send-email 2.16.4 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi, The following is an updated revision of the kvm vcpu to rcuwait conversion[0], following the work on completions using simple waitqueues. Changes from then: - patch 2: Make rcuwait_wake_up() propagate the return value from wake_up_process - Sebastian and Peter. - patch 3: o Added mips changes I missed. o Fixed broken compilation on power, adding the vcore bits that kvm-hv uses (a vcore blocking when all vcpus are blocked) - Paolo. o Use TASK_IDLE instead of TASK_INTERRUPTIBLE - Peter. - patch 4: fixed swait function name typo. This has only been run tested on x86 but compile tested on mips, powerpc and arm32. This series applies on top of current -tip, which has the required rcuwait api extension. [0] https://lore.kernel.org/lkml/20200320085527.23861-3-dave@stgolabs.net/ Thanks! Davidlohr Bueso (4): rcuwait: Fix stale wake call name in comment rcuwait: Let rcuwait_wake_up() return whether or not a task was awoken kvm: Replace vcpu->swait with rcuwait sched/swait: Reword some of the main description arch/mips/kvm/mips.c | 6 ++---- arch/powerpc/include/asm/kvm_book3s.h | 2 +- arch/powerpc/include/asm/kvm_host.h | 2 +- arch/powerpc/kvm/book3s_hv.c | 22 ++++++++-------------- arch/powerpc/kvm/powerpc.c | 2 +- arch/x86/kvm/lapic.c | 2 +- include/linux/kvm_host.h | 10 +++++----- include/linux/rcuwait.h | 2 +- include/linux/swait.h | 23 +++++------------------ kernel/exit.c | 9 ++++++--- virt/kvm/arm/arch_timer.c | 2 +- virt/kvm/arm/arm.c | 9 +++++---- virt/kvm/async_pf.c | 3 +-- virt/kvm/kvm_main.c | 31 +++++++++++-------------------- 14 files changed, 49 insertions(+), 76 deletions(-) -- 2.16.4