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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B94AC433EF for ; Tue, 7 Dec 2021 21:44:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242076AbhLGVsR (ORCPT ); Tue, 7 Dec 2021 16:48:17 -0500 Received: from sin.source.kernel.org ([145.40.73.55]:53872 "EHLO sin.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241976AbhLGVsG (ORCPT ); Tue, 7 Dec 2021 16:48:06 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 787C2CE1E7D for ; Tue, 7 Dec 2021 21:44:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47ECFC341EE; Tue, 7 Dec 2021 21:44:32 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.95) (envelope-from ) id 1muiGF-000I1w-FR; Tue, 07 Dec 2021 16:44:31 -0500 Message-ID: <20211207214431.312363234@goodmis.org> User-Agent: quilt/0.66 Date: Tue, 07 Dec 2021 16:44:19 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , "Uladzislau Rezki (Sony)" Subject: [for-next][PATCH 13/13] tracing: Switch to kvfree_rcu() API References: <20211207214406.148423650@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Uladzislau Rezki (Sony)" Instead of invoking a synchronize_rcu() to free a pointer after a grace period we can directly make use of new API that does the same but in more efficient way. Link: https://lkml.kernel.org/r/20211124110308.2053-10-urezki@gmail.com Signed-off-by: Uladzislau Rezki (Sony) Signed-off-by: Steven Rostedt (VMware) --- kernel/trace/trace_osnoise.c | 3 +-- kernel/trace/trace_probe.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c index 7520d43aed55..4719a848bf17 100644 --- a/kernel/trace/trace_osnoise.c +++ b/kernel/trace/trace_osnoise.c @@ -138,8 +138,7 @@ static void osnoise_unregister_instance(struct trace_array *tr) if (!found) return; - synchronize_rcu(); - kfree(inst); + kvfree_rcu(inst); } /* diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 3ed2a3f37297..8a3822818bf8 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -1138,8 +1138,7 @@ int trace_probe_remove_file(struct trace_probe *tp, return -ENOENT; list_del_rcu(&link->list); - synchronize_rcu(); - kfree(link); + kvfree_rcu(link); if (list_empty(&tp->event->files)) trace_probe_clear_flag(tp, TP_FLAG_TRACE); -- 2.33.0