From nobody Sun Feb 8 10:19:36 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 97EA71D0435 for ; Thu, 10 Oct 2024 14:25:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728570343; cv=none; b=Fx4yjkKW84CX0QVBlvpWnkeegVvjyT0YbI07EWOgyNQ587uGk7OniIpJRewLeeXT5ITkqogK7tGg8KAW1pPAi08nD5ksAJ4ozFb6zuhBVedbsRw+1Q8t2IK6jj852tWpxRJEnpvYrMLhDKWaalcYFXONZyEak+B1Ew3f7VVucW4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728570343; c=relaxed/simple; bh=ydcUIT5QrBwXxZEI4ghkmBBsj/Dk4TQBvAe8VQCEruA=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=UaVkwa7UG8QU4MSRzRdQIEPaMyOi4oQFPGN6cEEDpGiaTvt84WHYCvRlnTXNohtZMGXAP31qV8drmFVcC2Bf+n+FvpM22iNkwZaFSbor1DnZaNDzQL8kawAPkD+krVWY8LluoMkF2tNmiEtt3ROT3v+FTPmDImE2C+vfHSaFTbM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4461EC4CED0; Thu, 10 Oct 2024 14:25:43 +0000 (UTC) Received: from rostedt by gandalf with local (Exim 4.98) (envelope-from ) id 1syu6x-00000001HLJ-17oM; Thu, 10 Oct 2024 10:25:51 -0400 Message-ID: <20241010142551.130902358@goodmis.org> User-Agent: quilt/0.68 Date: Thu, 10 Oct 2024 10:25:47 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Uros Bizjak Subject: [for-next][PATCH 10/10] tracing: Use atomic64_inc_return() in trace_clock_counter() References: <20241010142537.255433162@goodmis.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Uros Bizjak Use atomic64_inc_return(&ref) instead of atomic64_add_return(1, &ref) to use optimized implementation and ease register pressure around the primitive for targets that implement optimized variant. Cc: Steven Rostedt Cc: Masami Hiramatsu Cc: Mathieu Desnoyers Link: https://lore.kernel.org/20241007085651.48544-1-ubizjak@gmail.com Signed-off-by: Uros Bizjak Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace_clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c index 4702efb00ff2..4cb2ebc439be 100644 --- a/kernel/trace/trace_clock.c +++ b/kernel/trace/trace_clock.c @@ -154,5 +154,5 @@ static atomic64_t trace_counter; */ u64 notrace trace_clock_counter(void) { - return atomic64_add_return(1, &trace_counter); + return atomic64_inc_return(&trace_counter); } --=20 2.45.2