netdev - Re: [PATCH v8 bpf-next 09/13] bpf: Add d

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Message-ID: <20200729201740.GB1233513@ZenIV.linux.org.uk>
Date:   Wed, 29 Jul 2020 21:17:40 +0100
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andriin@...com>, netdev@...r.kernel.org,
        bpf@...r.kernel.org, Song Liu <songliubraving@...com>,
        Yonghong Song <yhs@...com>, Martin KaFai Lau <kafai@...com>,
        David Miller <davem@...hat.com>,
        John Fastabend <john.fastabend@...il.com>,
        Wenbo Zhang <ethercflow@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        Brendan Gregg <bgregg@...flix.com>,
        Florent Revest <revest@...omium.org>
Subject: Re: [PATCH v8 bpf-next 09/13] bpf: Add d_path helper

On Wed, Jul 22, 2020 at 11:12:19PM +0200, Jiri Olsa wrote:

> +BTF_SET_START(btf_whitelist_d_path)
> +BTF_ID(func, vfs_truncate)
> +BTF_ID(func, vfs_fallocate)
> +BTF_ID(func, dentry_open)
> +BTF_ID(func, vfs_getattr)
> +BTF_ID(func, filp_close)
> +BTF_SET_END(btf_whitelist_d_path)

While we are at it, I hope you realize that the names of kernel function
are subject to change at zero notice.  If some script breaks since
we give e.g. filp_close a something less revolting name, it's Not My
Problem(tm)...