linux-kernel - Re: [PATCHv8 1/1] block: introduce content activity based ioprio

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Message-ID: <ZcFbl0zP2pK6vEmh@casper.infradead.org>
Date: Mon, 5 Feb 2024 22:05:11 +0000
From: Matthew Wilcox <willy@...radead.org>
To: "zhaoyang.huang" <zhaoyang.huang@...soc.com>
Cc: Jens Axboe <axboe@...nel.dk>, Yu Zhao <yuzhao@...gle.com>,
	linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Zhaoyang Huang <huangzhaoyang@...il.com>, steve.kang@...soc.com
Subject: Re: [PATCHv8 1/1] block: introduce content activity based ioprio

On Mon, Feb 05, 2024 at 05:05:52PM +0800, zhaoyang.huang wrote:
> +void bio_set_active_ioprio(struct bio *bio)

why does this still exist?  i said no.

> +void bio_set_active_ioprio_page(struct bio *bio, struct page *page)

this function should not exist.

> +void bio_set_active_ioprio_folio(struct bio *bio, struct folio *folio)

this is the only one which should.  did you even look at the
implementation of PageWorkingset?

> +extern void bio_set_active_ioprio(struct bio *bio);
> +extern void bio_set_active_ioprio_folio(struct bio *bio, struct folio *folio);
> +extern void bio_set_active_ioprio_page(struct bio *bio, struct page *page);

do not mark function prototypes with extern.

> +#ifdef CONFIG_BLK_CONT_ACT_BASED_IOPRIO
> +	/*
> +	 * bi_cont_act record total activities of bi_io_vec->pages
> +	 */
> +	u64			bi_cont_act;
> +#endif

what?

look, you just don't understand.  i've spent too much time replying to
you trying to help you.  i give up.  everything to do with this idea is
NAKed.  go away.