From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756875AbcK2JkL (ORCPT ); Tue, 29 Nov 2016 04:40:11 -0500 Received: from mx2.suse.de ([195.135.220.15]:51710 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751586AbcK2JiK (ORCPT ); Tue, 29 Nov 2016 04:38:10 -0500 From: Petr Mladek To: Jason Wessel Cc: Daniel Thompson , Peter Zijlstra , Andrew Morton , Sergey Senozhatsky , linux-kernel@vger.kernel.org, Petr Mladek Subject: [PATCH v2 0/3] kdb: Fix locking in vkdb_printf() Date: Tue, 29 Nov 2016 10:37:53 +0100 Message-Id: <1480412276-16690-1-git-send-email-pmladek@suse.com> X-Mailer: git-send-email 1.8.5.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset fixes some races that I noticed when looked over the kdbd_printf() code. v2 is based on the feedback from Daniel Thompson and Sergey Senozhatsky. Changes agaist v1: + Completely remove kdb_event (Daniel) + Avoid using smp_processor_id() (Sergey) + Better describe the whole situation in 3rd patch (Daniel) Petr Mladek (3): kdb: Remove unused kdb_event handling kdb: Properly synchronize vkdb_printf() calls with other CPUs kdb: Call vkdb_printf() from vprintk_default() only when wanted include/linux/kdb.h | 2 +- kernel/debug/kdb/kdb_io.c | 37 +++++++++++++------------------------ kernel/debug/kdb/kdb_main.c | 1 - kernel/debug/kdb/kdb_private.h | 1 - kernel/printk/printk.c | 3 ++- 5 files changed, 16 insertions(+), 28 deletions(-) -- 1.8.5.6