From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (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 EACD34884E9; Thu, 8 Jan 2026 10:21:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767867669; cv=none; b=pRM72bAxonsCpwnuHIMh5q/kWgQ5/krwUHqr5aPtfPaczqIoe1Ytx0th9v6sU5ma1vimw2raiIg14wG/fSZHD/Kzyz4Z1Vo8ErKrIpNeea/xg7VHQw+J3nqCjiREsO6zP3Zd6b6L8WksnhuZxqfg3poUC9Hz3ZN0rfuGa1LtSMI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767867669; c=relaxed/simple; bh=9NSMKlbYrqLjViN3gL1U4PaHv62SXFFxEg7DL5e3LT4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=VLGWP565W4bnsJ51urlVlZWn9Ek2OZhPuP0yykfnNCQUmc9qHAqiRsYMuiw2ggjaz2iviwY4q36zxVEL8LdlWm8HFlIsmMPbDnZewW0i4KF1JY08oza37579r6IwRMyYaKU5gpUvZZ1IbKb0Uw5qndxlryU9olCUUfuY8cR7hqw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id 04AC8227A87; Thu, 8 Jan 2026 11:21:03 +0100 (CET) Date: Thu, 8 Jan 2026 11:21:02 +0100 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Christoph Hellwig , cem@kernel.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 02/11] xfs: start creating infrastructure for health monitoring Message-ID: <20260108102102.GA25039@lst.de> References: <176766637179.774337.3663793412524347917.stgit@frogsfrogsfrogs> <176766637289.774337.11016648296945814848.stgit@frogsfrogsfrogs> <20260107091713.GB22838@lst.de> <20260107185055.GE15551@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-fsdevel@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: <20260107185055.GE15551@frogsfrogsfrogs> User-Agent: Mutt/1.5.17 (2007-11-01) On Wed, Jan 07, 2026 at 10:50:55AM -0800, Darrick J. Wong wrote: > > This almost looks like a not performance optimized version of hazard > > pointers. Not that we care much about performance here. > > Yep. AFAIK the kernel doesn't have an actual hazard pointer > implementation that we could latch onto, right? It's in the works. And probably complete overkill here, it your code just reminded me of a presentation Paul gave on it.