linux-kernel - Re: [PATCH 08/54] perf record: Apply config to BPF objects before recording

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Message-ID: <20160212205512.GC2663@redhat.com>
Date:	Fri, 12 Feb 2016 18:55:12 -0200
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Wang Nan <wangnan0@...wei.com>
Cc:	Alexei Starovoitov <ast@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Brendan Gregg <brendan.d.gregg@...il.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Cody P Schafer <dev@...yps.com>,
	"David S. Miller" <davem@...emloft.net>,
	He Kuang <hekuang@...wei.com>,
	Jérémie Galarneau 
	<jeremie.galarneau@...icios.com>, Jiri Olsa <jolsa@...nel.org>,
	Kirill Smelkov <kirr@...edi.com>,
	Li Zefan <lizefan@...wei.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>, pi3orama@....com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/54] perf record: Apply config to BPF objects before
 recording

Em Fri, Feb 05, 2016 at 02:01:33PM +0000, Wang Nan escreveu:
> bpf__apply_obj_config() is introduced as the core API to apply object
> config options to all BPF objects. This patch also does the real work
> for setting values for BPF_MAP_TYPE_PERF_ARRAY maps by inserting value
> stored in map's private field into the BPF map.

Ok, I have up to here in my perf/core branch, will perform tests and see
if I can push to Ingo so that we make progress, please take a look at
Jiri's comments for the next patches.

- Arnaldo