linux-kernel - Re: [PATCH v4 2/6] mm: swap: free_swap_and_cache_nr() as batched free_swap_and

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Date: Wed, 20 Mar 2024 14:21:33 +0000
From: Ryan Roberts <ryan.roberts@....com>
To: David Hildenbrand <david@...hat.com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Matthew Wilcox <willy@...radead.org>, Huang Ying <ying.huang@...el.com>,
 Gao Xiang <xiang@...nel.org>, Yu Zhao <yuzhao@...gle.com>,
 Yang Shi <shy828301@...il.com>, Michal Hocko <mhocko@...e.com>,
 Kefeng Wang <wangkefeng.wang@...wei.com>, Barry Song <21cnbao@...il.com>,
 Chris Li <chrisl@...nel.org>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/6] mm: swap: free_swap_and_cache_nr() as batched
 free_swap_and_cache()

On 20/03/2024 14:13, David Hildenbrand wrote:
> On 20.03.24 12:10, Ryan Roberts wrote:
>> Hi David,
> 
> I'm usually lazy with review during the merge window :P

Ahh no worries! I'll send out the latest version next week, and can go from there.

> 
>>
>> I hate to chase, but since you provided feedback on a couple of the other
>> patches in the series, I wondered if you missed this one? It's the one that does
>> the batching of free_swap_and_cache(), which you suggested in order to prevent
>> needlessly taking folio locks and refs.
>>
>> If you have any feedback, it would be appreciated, otherwise I'm planning to
>> repost as-is next week (nobody else has posted comments against this patch
>> either) as part of the updated series.
> 
> On my TODO list!
>