linux-kernel - Re: [PATCH v5 perf, bpf-next 1/7] perf, bpf: Introduce PERF_RECORD

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Message-ID: <20190108194343.GE1900@hirez.programming.kicks-ass.net>
Date:   Tue, 8 Jan 2019 20:43:43 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Song Liu <songliubraving@...com>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Kernel Team <Kernel-team@...com>
Subject: Re: [PATCH v5 perf, bpf-next 1/7] perf, bpf: Introduce
 PERF_RECORD_KSYMBOL

On Tue, Jan 08, 2019 at 06:56:19PM +0000, Song Liu wrote:
> I don't think we need u64 length. 32 bit should be more than enough. 
> 
> How about we revise it as:

Yep, works. Although I would not introduce types we're not yet
generating. We can add those easily enough when needed.