From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 2F8732EDD5F for ; Tue, 16 Dec 2025 10:20:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765880425; cv=none; b=XnaMppyuwijutYLepqCiotTJERJeOkcjWXtH0sZdPdAOVuZxvmIbcyNfSJnfIktg4eC2iEox7vNN538hn7fyVuePzu8qbS4/NLU+tTz/CiJ920VknAt4nwVhnrn6e6YcS7hckg99atlvHrAtuzhLooGGXjPK30jV8JMnT8zwOQA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765880425; c=relaxed/simple; bh=pyCozNQdE9mDk2EYEF2rjO/+ZR3RghoIu54YiDjsXs0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uLF0UG366YFvV+gb5vGRVPftb0FifPnDCVDO7B09E2BpzAQubcjzL0/F0ELN6sci1r/xdYYEcRSMATNJxUlql0Oa7KjktZSn7UuVYA180qytH2U+aEWXCJ3/5Bj8+jzBfcLNSbbvcGfsDIvhYdgDAKPS1gF+3N5Kud57A2aGwr8= 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=bxw8UR/2; arc=none smtp.client-ip=170.10.133.124 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="bxw8UR/2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1765880423; 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=Ov9IWOhALcXH5ofxLW6tvdz1k6bgc6W7nUE5Ummv7oo=; b=bxw8UR/28w/lJqJ28CaF9xV1CPD9LVsJnBpdI1LUOjhEdZeID4MIDEM5c7Y9V0b8f+R8h+ wTegX9NKOHwKyXDDZeM8uvC7jQuDonmoccIdFFTRKAe2gCIf5AFRY9KQ3z7wGRGjwbOXYK wlDQDTRpmQPjMmB82zSNUY1L50tS8bQ= 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-558-X4GUo7-lM_qChwzrF_yRbw-1; Tue, 16 Dec 2025 05:20:08 -0500 X-MC-Unique: X4GUo7-lM_qChwzrF_yRbw-1 X-Mimecast-MFC-AGG-ID: X4GUo7-lM_qChwzrF_yRbw_1765880407 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (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 96CA41956050; Tue, 16 Dec 2025 10:20:07 +0000 (UTC) Received: from fedora (unknown [10.72.116.190]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 717A21955F21; Tue, 16 Dec 2025 10:20:02 +0000 (UTC) Date: Tue, 16 Dec 2025 18:19:58 +0800 From: Ming Lei To: Yu Kuai Cc: axboe@kernel.dk, linux-block@vger.kernel.org, tj@kernel.org, nilay@linux.ibm.com Subject: Re: [PATCH v5 01/13] blk-wbt: factor out a helper wbt_set_lat() Message-ID: References: <20251214101409.1723751-1-yukuai@fnnas.com> <20251214101409.1723751-2-yukuai@fnnas.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: <20251214101409.1723751-2-yukuai@fnnas.com> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 On Sun, Dec 14, 2025 at 06:13:56PM +0800, Yu Kuai wrote: > To move implementation details inside blk-wbt.c, prepare to fix possible > deadlock to call wbt_init() while queue is frozen in the next patch. > > Signed-off-by: Yu Kuai Reviewed-by: Ming Lei Thanks, Ming