[LSF/MM/BPF TOPIC] Support block layer limits below the page size
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- To: "linux-block@xxxxxxxxxxxxxxx" <linux-block@xxxxxxxxxxxxxxx>, "linux-scsi@xxxxxxxxxxxxxxx" <linux-scsi@xxxxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Ming Lei <ming.lei@xxxxxxxxxx>, Javier Gonzalez <javier.gonz@xxxxxxxxxxx>
- Subject: [LSF/MM/BPF TOPIC] Support block layer limits below the page size
- From: Bart Van Assche <bvanassche@xxxxxxx>
- Date: Mon, 30 Jan 2023 13:38:29 -0800
- Cc: "lsf-pc@xxxxxxxxxxxxxxxxxxxxxxxxxx" <lsf-pc@xxxxxxxxxxxxxxxxxxxxxxxxxx>
- User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0
While increasing the page size increases system performance, some
embedded storage controllers have been designed for systems with 4 KiB
pages. Supporting such embedded storage controllers in the block layer
for page sizes larger than 4 KiB without reducing block layer
performance is challenging. I propose to hold a session about this topic
during the LSF/MM/BPF. Kernel patches that implement this support are
available here:
https://lore.kernel.org/linux-block/20230130212656.876311-1-bvanassche@xxxxxxx/T/#t
Thanks,
Bart.
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