From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f44.google.com (mail-oo1-f44.google.com [209.85.161.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8219633BBC8 for ; Thu, 29 Jan 2026 02:07:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769652457; cv=none; b=fppvUk44HPZQ40z/CHn4CNRglS3hr/B8yOZlHxO1X7ThBLMOat4eV78yTSfRrgMV/SxCtlpFw5DJVioS7ArVpFRXfpkL8epDmNLjFxX5c160vKMBpswYrsqUoKga56B/n/JvAZPb7oFXHmlqnfO2wn+I9EVO296DwJdvH84b1h4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769652457; c=relaxed/simple; bh=bacW6gtNl06dEZs+cbp2e+Z6rn7KN+k9r9uHG6KcT8E=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=QABanvVbGQJsu6nWzwB6RO65P+c0t/D3Dgsm3q4Eqw6MAcp5dySnXHS9QV8jYbsd+sk1V3JLqRcuix+EHnZPdZcmCvrmQL2V1VHP5sXKduQigQPLf4Rf0YPRb38JMy9I6xMYZfgesVsylXyzRTTxc5bSathD/1E+6lW+FLSw5nY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk; spf=pass smtp.mailfrom=kernel.dk; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b=BkDHMOz8; arc=none smtp.client-ip=209.85.161.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="BkDHMOz8" Received: by mail-oo1-f44.google.com with SMTP id 006d021491bc7-662fad2dc80so93195eaf.0 for ; Wed, 28 Jan 2026 18:07:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1769652449; x=1770257249; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=/a/OwQj+PVEv30iLi8MyCsqlP4Ex4C2otjo4OVfqMGs=; b=BkDHMOz8VDGxzc1JP844K7eIy6MjzDTIdKHZGELkvk3spWDltrXOKtWVIsMRNcr1XS 8vL0HiCXyclnqQCK8phbfGD55d+aK6oLW74B+zfBnI67qoRSE0lvdzuQb3IdBZ7djZZW tJoIouyyBWMl5kofkMV5TJ5vQYldGO3vY1b4xTu+p5s6H6bqBaaXCPBrWTq2Q31hBqMD X/cZ8Nh5CFb+Zf49YcAlKM/PSDNI1XucmuiQkk6eVknmjHehWnGY4mWwvyzK9bUk9+71 mJyxUZbUvznJTO/Lmp3N8GVL+ewYHGShaLXM9Z7KvEdotDd9vG0jEFd/9XVCfSFSjesB jYmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769652449; x=1770257249; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=/a/OwQj+PVEv30iLi8MyCsqlP4Ex4C2otjo4OVfqMGs=; b=ve7k8U8SH6Ec4WO+dBHAUMuEwuOoBGct2pO8PpZnlD7haaCdJ2j53j1kt4Rq/jcaJ+ NRqRyD+tX+LGva4XSaBCr7bqdkOLx7UnhdVVD33IgmhG/aaohY6dSSow51IbczEHYaJb wKhcPatVDVlkUKd1mjmOCPA7pWB/DDI8YetdM0ljJ/v4ps+fuWaCGASqV8nU4EgCW4RX yEFYxRgVQ9YJM1d6f4jHQMVwmNvmI+qe8XEo3s1LHfoEvqx7B941goHUjvdezqghx6fm X2jqp4I46bBXPoNDZIHyUXLWqt2hDg2Rh0Au/mfq1mOYy9cYf1agbCgPexBVdhUabh5P /82Q== X-Forwarded-Encrypted: i=1; AJvYcCVQkKuPXXRPcK/nfSVJh6IegwUUf4pKHZu6wYNrMA0PVHOTmAXGk/xUD5GMMTGgaOUfCEqlKmHdcjcAfPU=@vger.kernel.org X-Gm-Message-State: AOJu0YwHrxcIjVTvQpGiROwTfH0wEaf0opo1wvUam+Sz8APZkDmVUfXu /8HNL0ZlHuSA8qMy5SdLRuQtT/JRtajr51DQpNXXryAIYHLayOMuwJbB902hi5THl+6yeE6mazG bWlsRopo= X-Gm-Gg: AZuq6aLyZfDzITzl8GCHvVWiC/Yh+JGyrAsC6HFH1JijKwe1/Ok5wVKmpvU9izrdE89 TxDK6m/ICOLpRjJIaDkm0Gzq1EUdv7awOaHMkW0NE+77fwzJp3+fkVLVLa67vi0uK78yxMEUe3O s422ViyXNx0rH6WDKx/sAillnZzVGlIxGPw095tFWkg7pLf3GA9Z9enOTIsqX8qYlF5/Mfvgnig PP6n3G3Iki5gCIrSSHk14i1l9PAFQpxX+d8HZkFEPXctm/SfGMXBTErogqV3ABP2enmqUuZKpw2 f3b4OVwIKVjSLmDl/MjGIo/tKnCsh9cXMKgqSNyQRvJULg9No0OpjysfPU0fZYBvttTFeASz4+R l5r382VT+Tyf/vsSDj/d+BucqN5yhV0gu72Nnn/xU7nt3A3r7bZt0GGZBNmPqKpp9NBPoPtBBZa vQzfZqhOZZNmhbnizNfFBDm2eit71J9J5aPydf0S7Erww57w== X-Received: by 2002:a05:6820:1622:b0:662:c415:6b5d with SMTP id 006d021491bc7-662f20df6fcmr4289159eaf.64.1769652449345; Wed, 28 Jan 2026 18:07:29 -0800 (PST) Received: from [127.0.0.1] ([99.196.128.240]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-662f9a35b3csm2529154eaf.14.2026.01.28.18.07.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jan 2026 18:07:28 -0800 (PST) From: Jens Axboe To: colyli@fnnas.com, kent.overstreet@linux.dev, hch@infradead.org, zhangshida2026@163.com Cc: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, zhangshida@kylinos.cn, starzhangzsd@gmail.com In-Reply-To: <20260127082112.1114158-1-zhangshida2026@163.com> References: <20260127082112.1114158-1-zhangshida2026@163.com> Subject: Re: [PATCH v3 0/2] bcache: fix I/O accounting leak Message-Id: <176965244085.445345.14457521939729169467.b4-ty@kernel.dk> Date: Wed, 28 Jan 2026 19:07:20 -0700 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="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3 On Tue, 27 Jan 2026 16:21:10 +0800, zhangshida2026@163.com wrote: > This series addresses an I/O accounting leak where detached bcache > devices could report 100% utilization in iostat after completion > of discard requests. > > Changes since v2: > - Omitting the dead NULL check for bio_alloc_clone() (suggested by hch). > - Updated the Fixes tag for the accounting leak. > > [...] Applied, thanks! [1/2] bcache: remove dead code in detached_dev_do_request commit: 6ea84d7a92cb0b30aaf7d2066a69e28e27932332 [2/2] bcache: fix I/O accounting leak in detached_dev_do_request commit: 4da7c5c3ec34d839bba6e035c3d05c447a2f9d4f Best regards, -- Jens Axboe