From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 A5CA01D526 for ; Wed, 7 Feb 2024 11:56:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707306963; cv=none; b=QDRnIMaPdVE7aQET24P2dlqB74UPPmRrF2Yd3YcVPgaiFHjogpfvqLHqIVn1i0JUwfrme42vzVvFDr2C5b5huBwAiF5qDmr/kOHCs6AbDvWOOyW1Ie9r5bJ9tjQ6uiPM7nCuviwpFKVlq2ziEvYWmg+ZMLeOfhbNEyknUsHl01I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707306963; c=relaxed/simple; bh=p6e5+CcagT7mZdPGxmlcNs00g9JR8KPI7wX6P61SMjA=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=VB7SIrdIB2TXk6SnlcoCV5qxE/8B5tjQ0NDuXh1AQv0GklwKxo9Y1r3VcVUt+bZFJWQxBfmaDbG/NFGDa/oSc4LQT0ntX4mCBQPlpq7/Qt1B+znwvVBldcQys8e9d8/wwvoQl3OlUTjhawntx/lY3XvGJEZEDv+7REMTLi+prOQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=rtvLJbtk; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=UbcAGi4+; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="rtvLJbtk"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="UbcAGi4+" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1707306959; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=p6e5+CcagT7mZdPGxmlcNs00g9JR8KPI7wX6P61SMjA=; b=rtvLJbtku8q1PYV6vYD2/lGmm6JsocTQKtulqqtqHbfq0hga1J7K3F8NDrJ+yQ/SqmXhQ1 Rw0Ft6PGbY9E0TAFkM+t3VT3GPBV69Ncn1eZZSxUMUBZB4PI5CHaKaYwH0f7Onkh/karpj J+w/YAbzijg/VjYc6qDlrW9wSorL9GFmEBZO5oTfIYkcC7wjyXtFzZu7HtoRJI+U4qJYjs 6witAEz9aVKzs6fv2JmVPt7KAtWiTHgbJ55j56ce9/lL0fW90C718wPHY4iLrGPDJ87cjv VKyhYHO/Vc288ql0aD6Kx/di57wYUTSuBLFXpklbok4BPLF+YJW/vpQkLgRt3w== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1707306959; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=p6e5+CcagT7mZdPGxmlcNs00g9JR8KPI7wX6P61SMjA=; b=UbcAGi4+IISA2RZxscQ6tIffq3Z2YoHSlAhbIjJ+75a5shpMxXqqzD1a91kDi0gcUYalUV mb9I55T09QNFRRDw== To: Marcelo Tosatti , linux-kernel@vger.kernel.org Cc: Daniel Bristot de Oliveira , Juri Lelli , Valentin Schneider , Frederic Weisbecker , Leonardo Bras , Peter Zijlstra , Marcelo Tosatti Subject: Re: [patch 04/12] clockevent unbind: use smp_call_func_single_fail In-Reply-To: <20240206185709.928420669@redhat.com> References: <20240206184911.248214633@redhat.com> <20240206185709.928420669@redhat.com> Date: Wed, 07 Feb 2024 12:55:59 +0100 Message-ID: <87jzngmqsw.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Tue, Feb 06 2024 at 15:49, Marcelo Tosatti wrote: > Convert clockevents_unbind from smp_call_function_single > to smp_call_func_single_fail, which will fail in case > the target CPU is tagged as block interference CPU. Seriously? This is a root only operation. So if root wants to interfere then so be it.