Re: [PATCHv3 1/1] block: introduce content activity based ioprio

[Damien Le Moal]

On 1/25/24 18:37, Zhaoyang Huang wrote:
> Actually, the activity information comes from page's history (recorded
> at page cache's slot) instead of user space in step(1) and can be
> associate with bio in step(2) or iterate the bio in step(3)
> page fault(or vfs)(1)
> |
> alloc_pages
> |
> add_page_to_pagecache(get the page's activity information)
> |
> fs_readpage
> |
> bio_add_page(2)
> |

set your prio here. No change to the block layer needed. That is FS land.

> submit_bio(3)


-- 
Damien Le Moal
Western Digital Research