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Thu, 22 Jan 2026 06:26:25 -0800 (PST) From: Jens Axboe To: colyli@fnnas.com, kent.overstreet@linux.dev, sashal@kernel.org, hch@infradead.org, zhangshida2026@163.com Cc: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, zhangshida@kylinos.cn, starzhangzsd@gmail.com, Christoph Hellwig In-Reply-To: <20260122061321.359218-1-zhangshida2026@163.com> References: <20260122061321.359218-1-zhangshida2026@163.com> Subject: Re: [PATCH RESEND v3] bcache: use bio cloning for detached device requests Message-Id: <176909198455.303056.14934550192217004133.b4-ty@kernel.dk> Date: Thu, 22 Jan 2026 07:26:24 -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 Thu, 22 Jan 2026 14:13:21 +0800, zhangshida2026@163.com wrote: > Previously, bcache hijacked the bi_end_io and bi_private fields of > the incoming bio when the backing device was in a detached state. > This is fragile and breaks if the bio is needed to be processed by > other layers. > > This patch transitions to using a cloned bio embedded within a private > structure. This ensures the original bio's metadata remains untouched. > > [...] Applied, thanks! [1/1] bcache: use bio cloning for detached device requests commit: 3ef825dfd4e487d6f92b23ee2df2455814583ef4 Best regards, -- Jens Axboe