linux-kernel - Re: [PATCHv6 0/4] perf: Add mmap2 build id support

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Message-ID: <20210112024958.4utm7ijkpluu3g36@ast-mbp>
Date:   Mon, 11 Jan 2021 18:49:58 -0800
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Ingo Molnar <mingo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Michael Petlan <mpetlan@...hat.com>,
        Song Liu <songliubraving@...com>,
        Ian Rogers <irogers@...gle.com>,
        Stephane Eranian <eranian@...gle.com>,
        Alexei Budankov <abudankov@...wei.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [PATCHv6 0/4] perf: Add mmap2 build id support

On Mon, Jan 11, 2021 at 10:38:19PM +0100, Jiri Olsa wrote:
> hi,
> adding the support to have buildid stored in mmap2 event,
> so we can bypass the final perf record hunt on build ids.
> 
> This patchset allows perf to record build ID in mmap2 event,
> and adds perf tooling to store/download binaries to .debug
> cache based on these build IDs.
> 
> Note that the build id retrieval code is stolen from bpf
> code, where it's been used (together with file offsets)
> to replace IPs in user space stack traces. It's now added
> under lib directory.
> 
> v6 changes:
>   - last 4 patches rebased Arnaldo's perf/core

There were no issues with v5 as far as I can remember.
This is just a resubmit to get it landed ?
Last time we couldn't quite figure out which tree to go through.
I think the recommend path was to go via bpf-next.
Is it still the case?