linux-kernel - Re: [PATCH v2 3/3] perf tools: Add dso__data_get/put

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Message-ID: <555D840A.60407@intel.com>
Date:	Thu, 21 May 2015 10:06:50 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Namhyung Kim <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
CC:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCH v2 3/3] perf tools: Add dso__data_get/put_fd()

On 20/05/15 19:03, Namhyung Kim wrote:
> Using dso__data_fd() in multi-thread environment is not safe since
> returned fd can be closed and/or reused anytime.  So convert it to the
> dso__data_get/put_fd() pair to protect the access with lock.
> 
> The original dso__data_fd() is deprecated and kept only for testing.
> 
> Cc: Adrian Hunter <adrian.hunter@...el.com>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>

Could convert dso_cache__read() and data_file_size() over to
dso__data_get/put_fd() too, but that can come later, so:

Acked-by: Adrian Hunter <adrian.hunter@...el.com>


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