linux-kernel - Re: [RFC 0/5] mm/bpf/perf: Store build id in file object

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Message-ID: <Y9vSZhBBCbshI3eM@casper.infradead.org>
Date:   Thu, 2 Feb 2023 15:10:30 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Hao Luo <haoluo@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        bpf@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Daniel Borkmann <daniel@...earbox.net>
Subject: Re: [RFC 0/5] mm/bpf/perf: Store build id in file object

On Wed, Feb 01, 2023 at 02:57:32PM +0100, Jiri Olsa wrote:
> hi,
> we have a use cases for bpf programs to use binary file's build id.

What is your use case?  Is it some hobbyist thing or is it something
that distro kernels are all going to enable?