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Tue, 15 Apr 2025 18:04:10 -0700 (PDT) Message-ID: <15e2151a-d788-48eb-8588-1d9a930c64dd@kernel.dk> Date: Tue, 15 Apr 2025 19:04:09 -0600 Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH 00/11] pcache: Persistent Memory Cache for Block Devices To: Dan Williams , Dongsheng Yang , hch@lst.de, gregory.price@memverge.com, John@groves.net, Jonathan.Cameron@huawei.com, bbhushan2@marvell.com, chaitanyak@nvidia.com, rdunlap@infradead.org Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org, linux-bcache@vger.kernel.org, nvdimm@lists.linux.dev References: <20250414014505.20477-1-dongsheng.yang@linux.dev> <67fe9ea2850bc_71fe294d8@dwillia2-xfh.jf.intel.com.notmuch> Content-Language: en-US From: Jens Axboe In-Reply-To: <67fe9ea2850bc_71fe294d8@dwillia2-xfh.jf.intel.com.notmuch> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 4/15/25 12:00 PM, Dan Williams wrote: > Thanks for making the comparison chart. The immediate question this > raises is why not add "multi-tree per backend", "log structured > writeback", "readcache", and "CRC" support to dm-writecache? > device-mapper is everywhere, has a long track record, and enhancing it > immediately engages a community of folks in this space. Strongly agree. -- Jens Axboe