linux-kernel - Re: [PATCH 2/2] mm: tlb: add tlb swap entries batch async release

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Message-Id: <b8fad35b-ba72-44ef-b89b-5333dd457ca7@app.fastmail.com>
Date: Wed, 31 Jul 2024 14:08:08 +0200
From: "Arnd Bergmann" <arnd@...db.de>
To: "Zhiguo Jiang" <justinjiang@...o.com>,
 "Andrew Morton" <akpm@...ux-foundation.org>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, "Will Deacon" <will@...nel.org>,
 "Aneesh Kumar K.V" <aneesh.kumar@...nel.org>,
 "Nicholas Piggin" <npiggin@...il.com>,
 "Peter Zijlstra" <peterz@...radead.org>,
 "Johannes Weiner" <hannes@...xchg.org>, "Michal Hocko" <mhocko@...nel.org>,
 "Roman Gushchin" <roman.gushchin@...ux.dev>,
 "Shakeel Butt" <shakeel.butt@...ux.dev>,
 "Muchun Song" <muchun.song@...ux.dev>,
 Linux-Arch <linux-arch@...r.kernel.org>, cgroups@...r.kernel.org,
 "Barry Song" <21cnbao@...il.com>
Cc: opensource.kernel@...o.com
Subject: Re: [PATCH 2/2] mm: tlb: add tlb swap entries batch async release

On Tue, Jul 30, 2024, at 13:44, Zhiguo Jiang wrote:

> +
> +
> +extern bool __tlb_remove_swap_entries(struct mmu_gather *tlb,
> +		swp_entry_t entry, int nr);
> +#else
> +bool __tlb_remove_swap_entries(struct mmu_gather *tlb,
> +		swp_entry_t entry, int nr)
> +{
> +	return false;
> +}
> +#endif

To address the reported build regression, that function must
be annotated as 'static inline'.

     Arnd