linux-kernel - Re: [PATCH v4 19/39] unwind_user/sframe: Add support for reading .sframe contents

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Message-ID: <4379b9c6-e896-4ea4-a4a5-9c6b3c9f2f75@linux.ibm.com>
Date: Fri, 24 Jan 2025 17:36:38 +0100
From: Jens Remus <jremus@...ux.ibm.com>
To: Josh Poimboeuf <jpoimboe@...nel.org>, x86@...nel.org
Cc: Peter Zijlstra <peterz@...radead.org>,
        Steven Rostedt <rostedt@...dmis.org>, Ingo Molnar <mingo@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        linux-kernel@...r.kernel.org, Indu Bhagat <indu.bhagat@...cle.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        linux-toolchains@...r.kernel.org, Jordan Rome <jordalgo@...a.com>,
        Sam James <sam@...too.org>, linux-trace-kernel@...r.kernel.org,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Florian Weimer <fweimer@...hat.com>, Andy Lutomirski <luto@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>, Weinan Liu <wnliu@...gle.com>
Subject: Re: [PATCH v4 19/39] unwind_user/sframe: Add support for reading
 .sframe contents

On 22.01.2025 03:31, Josh Poimboeuf wrote:

> diff --git a/include/linux/sframe.h b/include/linux/sframe.h

> @@ -3,11 +3,14 @@
>   #define _LINUX_SFRAME_H
>   
>   #include <linux/mm_types.h>
> +#include <linux/srcu.h>
>   #include <linux/unwind_user_types.h>
>   
>   #ifdef CONFIG_HAVE_UNWIND_USER_SFRAME
>   
>   struct sframe_section {
> +	struct rcu_head	rcu;
> +

Nit: You are adding a blank line, that you later remove with
"[PATCH v4 25/39] unwind_user/sframe: Show file name in debug output".

>   	unsigned long	sframe_start;
>   	unsigned long	sframe_end;
>   	unsigned long	text_start;

Regards,
Jens
-- 
Jens Remus
Linux on Z Development (D3303)
+49-7031-16-1128 Office
jremus@...ibm.com

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