From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:32896 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755294AbdCJIkA (ORCPT ); Fri, 10 Mar 2017 03:40:00 -0500 Subject: Patch "hv: init percpu_list in hv_synic_alloc()" has been added to the 4.10-stable tree To: vkuznets@redhat.com, gregkh@linuxfoundation.org, kys@microsoft.com Cc: , From: Date: Fri, 10 Mar 2017 09:38:38 +0100 Message-ID: <148913511823658@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled hv: init percpu_list in hv_synic_alloc() to the 4.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: hv-init-percpu_list-in-hv_synic_alloc.patch and it can be found in the queue-4.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 3c7630d35009e6635e5b58d62de554fd5b6db5df Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Wed, 7 Dec 2016 01:16:26 -0800 Subject: hv: init percpu_list in hv_synic_alloc() From: Vitaly Kuznetsov commit 3c7630d35009e6635e5b58d62de554fd5b6db5df upstream. Initializing hv_context.percpu_list in hv_synic_alloc() helps to prevent a crash in percpu_channel_enq() when not all CPUs were online during initialization and it naturally belongs there. Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/hv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -457,6 +457,8 @@ int hv_synic_alloc(void) pr_err("Unable to allocate post msg page\n"); goto err; } + + INIT_LIST_HEAD(&hv_context.percpu_list[cpu]); } return 0; @@ -552,8 +554,6 @@ void hv_synic_init(void *arg) rdmsrl(HV_X64_MSR_VP_INDEX, vp_index); hv_context.vp_index[cpu] = (u32)vp_index; - INIT_LIST_HEAD(&hv_context.percpu_list[cpu]); - /* * Register the per-cpu clockevent source. */ Patches currently in stable-queue which might be from vkuznets@redhat.com are queue-4.10/hv-init-percpu_list-in-hv_synic_alloc.patch queue-4.10/drivers-hv-vmbus-raise-retry-wait-limits-in-vmbus_post_msg.patch queue-4.10/hv-allocate-synic-pages-for-all-present-cpus.patch queue-4.10/hv-don-t-reset-hv_context.tsc_page-on-crash.patch