From: Mel Gorman <mgorman@techsingularity.net>
To: Michal Such?nek <msuchanek@suse.de>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Hellwig <hch@infradead.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
LKML <linux-kernel@vger.kernel.org>, Jiri Olsa <jolsa@kernel.org>,
Hritik Vijay <hritikxx8@gmail.com>,
Linux-BPF <bpf@vger.kernel.org>,
Linux-Net <netdev@vger.kernel.org>, Linux-MM <linux-mm@kvack.org>,
clm@fb.com
Subject: Re: [PATCH v3] mm/page_alloc: Require pahole v1.22 to cope with zero-sized struct pagesets
Date: Fri, 16 Jul 2021 09:07:30 +0100 [thread overview]
Message-ID: <20210716080730.GU3809@techsingularity.net> (raw)
In-Reply-To: <20210715194453.GI24916@kitsune.suse.cz>
On Thu, Jul 15, 2021 at 09:44:53PM +0200, Michal Such?nek wrote:
> > > Well, luckily it seems we anticipated issues like that and added
> > > --skip_encoding_btf_vars argument, which I completely forgot about and
> > > just accidentally came across reviewing Arnaldo's latest pahole patch.
> > > I think that one is a much better solution, as then it will impact
> > > only those that explicitly relies on availability of BTF for per-CPU
> > > variables, which is a subset of all possible uses for kernel BTF. Sent
> > > a patch ([0]), please take a look.
> > >
> > > [0] https://lore.kernel.org/linux-mm/20210530002536.3193829-1-andrii@kernel.org/T/#u
> >
> > I'm happy to have this patch used as an alternative to forcing 1.22 to
> > be the minimum version of pahole required.
>
> Is pahole 1.22 available already?
>
Ultimately it was of less importance because of a0b8200d06ad ("kbuild:
skip per-CPU BTF generation for pahole v1.18-v1.21"). As I write this,
pahole v1.22 has not been tagged.
--
Mel Gorman
SUSE Labs
prev parent reply other threads:[~2021-07-16 8:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-27 17:19 [PATCH v3] mm/page_alloc: Require pahole v1.22 to cope with zero-sized struct pagesets Mel Gorman
2021-05-27 22:17 ` Andrii Nakryiko
2021-05-28 7:42 ` Mel Gorman
2021-05-30 3:10 ` Andrii Nakryiko
2021-05-31 9:35 ` Mel Gorman
2021-07-15 19:44 ` Michal Suchánek
2021-07-16 8:07 ` Mel Gorman [this message]
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