From nobody Wed Dec 17 06:10:39 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 B58FE326927 for ; Fri, 14 Nov 2025 15:06:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763132767; cv=none; b=N8Ju4O++2yUmiMTybLc8VoInGTDGHgjouGW2YmLNqHsiizz4VZQF/lZXhPfYgxZU+vpJw2Zb+CKqbqghFrDDOnTXlwSfVvyhLiE8CgFTQG4fYApGbKrkC7BFpmlO16G5wAw5oxJf3twT9E8xjdDx+kYlrnn7jzhtAdVweN8K37E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763132767; c=relaxed/simple; bh=pKh76Nm+gleSSaDhponuTSE6i9RO/F37+kzRltiJzdQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MQjrFntinl+Q+DfLVUyIphnzwzaxBbkT6g0ktL+GRbmY7HdBpNxMTAfB8j2nWQx0Lk4z9YTAXQ/Z+JB5IIGMCk6zVFkQH2dNnj2rAwU7MfSbp0ha+Rjy6hCINRaOpRcnbCEzoH4O0vVGkqYbmtT1BNZRnU6JOggtG+ItW8Wqilk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=DqEqH/sv; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DqEqH/sv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1763132764; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=s5bTE2UFDn4FhRjqFPlcPPiaXyzSIXCKwLwP8uiIlgI=; b=DqEqH/svpKebqQGCZZSzZeyCZseVE3jHLJQ7la1JCfhla7bz0R2HkkDX5LT9HiSEWX91SC 2lZ2VLdIR3cx0H+UmEXhaDv129Y+CYbtNl6xze1iAon+dslMFn1VCtVQhoK2XxczxL9109 n4jAHnZq8ElTe43AW0I5OWgBMd8J41o= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-491-wjT2W7RgMiuVd7KDFrJugQ-1; Fri, 14 Nov 2025 10:06:03 -0500 X-MC-Unique: wjT2W7RgMiuVd7KDFrJugQ-1 X-Mimecast-MFC-AGG-ID: wjT2W7RgMiuVd7KDFrJugQ_1763132758 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 85E3818AB416; Fri, 14 Nov 2025 15:05:58 +0000 (UTC) Received: from vschneid-thinkpadt14sgen2i.remote.csb (unknown [10.45.226.10]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id DF79C19560B9; Fri, 14 Nov 2025 15:05:44 +0000 (UTC) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, rcu@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Arnaldo Carvalho de Melo , Josh Poimboeuf , Paolo Bonzini , Arnd Bergmann , Frederic Weisbecker , "Paul E. McKenney" , Jason Baron , Steven Rostedt , Ard Biesheuvel , Sami Tolvanen , "David S. Miller" , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Mel Gorman , Andrew Morton , Masahiro Yamada , Han Shen , Rik van Riel , Jann Horn , Dan Carpenter , Oleg Nesterov , Juri Lelli , Clark Williams , Yair Podemsky , Marcelo Tosatti , Daniel Wagner , Petr Tesarik , Shrikanth Hegde Subject: [PATCH v7 15/31] sched/clock: Mark sched_clock_running key as __ro_after_init Date: Fri, 14 Nov 2025 16:01:17 +0100 Message-ID: <20251114150133.1056710-16-vschneid@redhat.com> In-Reply-To: <20251114150133.1056710-1-vschneid@redhat.com> References: <20251114150133.1056710-1-vschneid@redhat.com> 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 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Content-Type: text/plain; charset="utf-8" sched_clock_running is only ever enabled in the __init functions sched_clock_init() and sched_clock_init_late(), and is never disabled. Mark it __ro_after_init. Signed-off-by: Valentin Schneider --- kernel/sched/clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c index f5e6dd6a6b3af..c1a028e99d2cd 100644 --- a/kernel/sched/clock.c +++ b/kernel/sched/clock.c @@ -69,7 +69,7 @@ notrace unsigned long long __weak sched_clock(void) } EXPORT_SYMBOL_GPL(sched_clock); =20 -static DEFINE_STATIC_KEY_FALSE(sched_clock_running); +static DEFINE_STATIC_KEY_FALSE_RO(sched_clock_running); =20 #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK /* --=20 2.51.0