From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 A7D3421771C for ; Fri, 6 Dec 2024 16:23:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733502239; cv=none; b=ahp5CGz/1FsD+JsUPzISG49myAj8fBnxIUsGoTPsIa4bZILQdEluMwId7n3unbMDUrI1RWcmjR91jEpvrkvAAliPNFwMQgvL0ATnAvsTSwnYalXt4bT2qkeVQAilo6oAYwlRfbiCqB8f17FR2JEFiRXaiNpRCyXfbzRu9U04GYk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733502239; c=relaxed/simple; bh=ByL5KlPEIfnKLV7rIZoXO+Eszw7LwEsbAk+KON6Y53w=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Fdhoj0Lc30b33kIOj27/Aze3GXJ+LKJlsfVu6VCVLdHuY54BohXG/0xcba03ykao8okneCT3lVJmnbv7pjVsmfUesGFrsyFWiwRtyVyGEKcJvHGo5506PPvyH223BqapTXDTlyzzCJK8YLwzd4B7zeNd+UiT5rzJOxbXth0VJ60= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Nd8+svdH; arc=none smtp.client-ip=198.175.65.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Nd8+svdH" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1733502238; x=1765038238; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=ByL5KlPEIfnKLV7rIZoXO+Eszw7LwEsbAk+KON6Y53w=; b=Nd8+svdH5rogcGokRYLsKveIyYq8fVg7k+0ARN0KpEVCegjiootU9ibS sZzVo+ugrcH6ZslpP5YiCQlYeFfppoFaGnI0uVUE5n4mYVXqbljVnR7mi GonT9Qeuvvo1sAWr1rzZz58Ug0Aet+JcyV7EKwPUrygumj46pGYryWFfe IFRaUH+Xrv194JGaL5EmNjvyNfr6Ru1z/sKrseHmaGKiIetm4vikQAeCq Z+qE+41AcYVtCZW4AF5yhIH/zflbPpAdA9gAjTsrC6m83ZAuRtPnZTU8G 0Mz4NgQCMQMB4bG6PxAAKKhS/8HGzrc6ubSjiReE5KNtPn6igGoi6+U4/ A==; X-CSE-ConnectionGUID: 8+fz8u6KQUSjq8j/q32sxA== X-CSE-MsgGUID: 9qUjXpE/TaGVbSZtwJj4cQ== X-IronPort-AV: E=McAfee;i="6700,10204,11278"; a="33595824" X-IronPort-AV: E=Sophos;i="6.12,213,1728975600"; d="scan'208";a="33595824" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Dec 2024 08:23:57 -0800 X-CSE-ConnectionGUID: JBAj6KXpTlGzY9P28N8BSQ== X-CSE-MsgGUID: yvFiyj6OSf2C8yHgshxyKw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,213,1728975600"; d="scan'208";a="94642678" Received: from agluck-desk3.sc.intel.com (HELO agluck-desk3) ([172.25.222.70]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Dec 2024 08:23:56 -0800 Date: Fri, 6 Dec 2024 08:23:54 -0800 From: "Luck, Tony" To: Ming Lei Cc: Jens Axboe , linux-block@vger.kernel.org Subject: Re: [PATCH RESEND 0/2] blk-mq: fix lockdep warning between sysfs_lock and cpu hotplug lock Message-ID: References: <20241206111611.978870-1-ming.lei@redhat.com> Precedence: bulk X-Mailing-List: linux-block@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: <20241206111611.978870-1-ming.lei@redhat.com> On Fri, Dec 06, 2024 at 07:16:05PM +0800, Ming Lei wrote: > Hello, > > The 1st patch is one prep patch. > > The 2nd one fixes lockdep warning triggered by dependency between > q->sysfs_lock and cpuhotplug_lock. > > > Ming Lei (2): > blk-mq: register cpuhp callback after hctx is added to xarray table > blk-mq: move cpuhp callback registering out of q->sysfs_lock > > block/blk-mq.c | 108 ++++++++++++++++++++++++++++++++++++++++++------- > 1 file changed, 94 insertions(+), 14 deletions(-) Ming, Thanks for the patches. They work for me. Tested-by: Tony Luck -Tony