From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755344Ab3FKQnD (ORCPT ); Tue, 11 Jun 2013 12:43:03 -0400 Received: from mail-bk0-f51.google.com ([209.85.214.51]:63189 "EHLO mail-bk0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755238Ab3FKQm7 (ORCPT ); Tue, 11 Jun 2013 12:42:59 -0400 From: Robert Richter To: Borislav Petkov Cc: Ingo Molnar , Peter Zijlstra , Arnaldo Carvalho de Melo , Jiri Olsa , linux-kernel@vger.kernel.org, Borislav Petkov , Robert Richter , Robert Richter Subject: [PATCH v2 04/14] MCE: Enable persistent event Date: Tue, 11 Jun 2013 18:42:30 +0200 Message-Id: <1370968960-22527-5-git-send-email-rric@kernel.org> X-Mailer: git-send-email 1.8.1.1 In-Reply-To: <1370968960-22527-1-git-send-email-rric@kernel.org> References: <1370968960-22527-1-git-send-email-rric@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Borislav Petkov ... for MCEs collection. Changes made by Robert Richter : The mce_record tracepoint needs tracepoints to be enabled. Fixing build error for no-tracepoints configs. Signed-off-by: Borislav Petkov [ Fix build error for no-tracepoints configs ] Signed-off-by: Robert Richter Signed-off-by: Robert Richter --- arch/x86/kernel/cpu/mcheck/mce.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 9239504..d421937 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1987,6 +1987,24 @@ int __init mcheck_init(void) return 0; } +#ifdef CONFIG_TRACEPOINTS + +int __init mcheck_init_tp(void) +{ + if (perf_add_persistent_event_by_id(event_mce_record.event.type)) { + pr_err("Error adding MCE persistent event.\n"); + return -EINVAL; + } + return 0; +} +/* + * We can't run earlier because persistent events uses anon_inode_getfile and + * its anon_inode_mnt gets initialized as a fs_initcall. + */ +fs_initcall_sync(mcheck_init_tp); + +#endif /* CONFIG_TRACEPOINTS */ + /* * mce_syscore: PM support */ -- 1.8.1.1