From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751545AbdFIGSN (ORCPT ); Fri, 9 Jun 2017 02:18:13 -0400 Received: from mail-wm0-f67.google.com ([74.125.82.67]:35166 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751501AbdFIGSL (ORCPT ); Fri, 9 Jun 2017 02:18:11 -0400 Date: Fri, 9 Jun 2017 08:18:07 +0200 From: Ingo Molnar To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, linuc.decode@gmail.com, kvm@vger.kernel.org, pbonzini@redhat.com Subject: Re: [GIT PULL rcu/urgent] Allow SRCU readers in irq handlers for KVM Message-ID: <20170609061807.zgxcdu645q6vhkhq@gmail.com> References: <20170609014551.GA22701@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170609014551.GA22701@linux.vnet.ibm.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Paul E. McKenney wrote: > Hello, Ingo, > > This series enables srcu_read_lock() and srcu_read_unlock to be used from > interrupt handlers, which fixes a bug in KVM's use of SRCU in delivery > of interrupts to guest OSes. These patches have been exposed to 0day > Test Robot and to -next testing, have been tested by the KVM folks, > and were posted to LKML: > > http://lkml.kernel.org/r/20170605220919.GA27820@linux.vnet.ibm.com > > These changes, based on v4.2-rc4, are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/urgent > > for you to fetch changes up to 1123a6041654e8f889014659593bad4168e542c2: > > srcu: Allow use of Classic SRCU from both process and interrupt context (2017-06-08 08:25:19 -0700) > > ---------------------------------------------------------------- > Paolo Bonzini (2): > srcu: Allow use of Tiny/Tree SRCU from both process and interrupt context > srcu: Allow use of Classic SRCU from both process and interrupt context > > include/linux/srcu.h | 2 -- > kernel/rcu/srcu.c | 5 ++--- > kernel/rcu/srcutiny.c | 7 ++++--- > kernel/rcu/srcutree.c | 5 ++--- > 4 files changed, 8 insertions(+), 11 deletions(-) Pulled, thanks a lot Paul! Ingo