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 0F593EEA8; Tue, 8 Jul 2025 13:31:38 +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=1751981500; cv=none; b=j45nDQKbWkELbx0IfRGTLubUTWTWIOZi0XXxWQwlfG+wAQCAZZ6u9mc515c4k8vqNjD3RXIZByAUMcMSgUUStxNo4+dSjLui04RnLrvns7r132wxtpy+Qlm8yu72lBhqYNN+5vcd57J6NnWKhy/17KKYobDm8VmXAWX/6vhN+Sw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751981500; c=relaxed/simple; bh=CP0kEgZNJOllWaDHiOX/Qwki1+HvnDoA4dtbZzijyGU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=GR0U8KAa4vxnvU0ihJVopKphqPBGQzBdkIYlYYOcsiy+qV9p7Q213cixEc9P5IklQw3AMrPq5JmUbeBGCH3CPVLFRDKg3GOafi2spxUtptNr6k75nNycRqlX6Nu+Vy4gXAIe9hUblTB9wmxMf5WUNYgpjnl/jC7BEfnPkkkWv+g= 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=Jr/wD7/3; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=IaMKETVw; 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="Jr/wD7/3"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="IaMKETVw" Date: Tue, 8 Jul 2025 15:31:35 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1751981496; 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=2d7vS40rYvw8brUay1AuwTlIijasoRsP5SIdJYiBzWo=; b=Jr/wD7/3Psk+yzcDAp/4R5LG0ULE94i7AcVzyGSyff9Vy6+U5bmz1Ph9CQbD2aLOsQRP8V cIsUs5KFjqwCu4xnR8/8ndfXNv1FJpdMjyN3A/v/LpsJ3ly7MlhIkIgfvlJqSVtwymwOag qpFJhD45yZ6COedK6GXUQFeDoafS/JRH+CYcB/Eho5J92ZN/vmfIKbxLb2/tG8r2c9TCgB zH+OQUs6/yfP117naULj7vXDca+mLegJj+SZgMc248K+6Df7/uEZu/9aRHki2ckJZJDTGo 56ZWV59F+IeVjOegfNpEDMKSNEs7mPquGl8vRxUCv/ndVw4fTlY65O6pkD8xAA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1751981496; 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=2d7vS40rYvw8brUay1AuwTlIijasoRsP5SIdJYiBzWo=; b=IaMKETVwMomUmbk9fwh5BMVICT0FHlGDBDsmfq4p+vckNb38q9zA2Nv5Qf4d3xF6BtsR/Y VKWJgi8/6Y3fEhAw== From: Nam Cao To: Will Deacon Cc: Steven Rostedt , Gabriele Monaco , linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org, john.ogness@linutronix.de, Catalin Marinas , linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v9 17/22] arm64: mm: Add page fault trace points Message-ID: <20250708133135.afWClD2E@linutronix.de> References: <61063f55e2c2df6db69cb63eac9d6653f38fbfbd.1747649899.git.namcao@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Jul 08, 2025 at 02:16:16PM +0100, Will Deacon wrote: > As per the discussion with Steve on v6, I still object to relying on the > arch code to call all these different trace helpers (rv, kprobes, perf) > in the right place and consistently with each other. > > In: > > https://lore.kernel.org/r/20250519120837.794f6738@batman.local.home > > Steve suggested wrapping some of this up in a core function to help with > that. I have dropped this one from my latest version, so that the series can move forward while we figure this part out. Best regards, Nam