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Date:   Mon, 24 Jan 2022 13:45:22 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     Song Liu <songliubraving@fb.com>
Cc:     Alexei Starovoitov <alexei.starovoitov@gmail.com>,
        Ilya Leoshkevich <iii@linux.ibm.com>,
        Song Liu <song@kernel.org>, bpf <bpf@vger.kernel.org>,
        Network Development <netdev@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Andrii Nakryiko <andrii@kernel.org>,
        Kernel Team <Kernel-team@fb.com>, X86 ML <x86@kernel.org>
Subject: Re: [PATCH v6 bpf-next 6/7] bpf: introduce bpf_prog_pack allocator
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On Sun, Jan 23, 2022 at 01:03:25AM +0000, Song Liu wrote:

> I guess we can introduce something similar to bpf_arch_text_poke() 
> for this? 

IIRC the s390 version of the text_poke_copy() function is called
s390_kernel_write().