linux-kernel - Re: [PATCH -next 7/7] mm: swap: remove unneeded cgroup_throttle

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Message-ID: <Y8F9rHVHu7XsBg49@casper.infradead.org>
Date:   Fri, 13 Jan 2023 15:50:04 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next 7/7] mm: swap: remove unneeded
 cgroup_throttle_swaprate()

On Thu, Jan 12, 2023 at 04:30:06PM +0800, Kefeng Wang wrote:
> All the callers of cgroup_throttle_swaprate() are converted to
> folio_throttle_swaprate(), so make __cgroup_throttle_swaprate()
> to take a folio, and drop unused cgroup_throttle_swaprate().

Shouldn't __cgroup_throttle_swaprate() then be called
__folio_throttle_swaprate()?

> +extern void __cgroup_throttle_swaprate(struct folio *folio, gfp_t gfp_mask);

Also you can drop the 'extern'.

> +static inline void folio_throttle_swaprate(struct folio *folio, gfp_t gfp_mask)

And it's not a gfp mask.  It's gfp_flags (we have this mistake all
through the mm).  Or you can just call it 'gfp'.