linux-kernel - Re: [PATCH 2/5] tools lib api fs: Add tracefs mount helper functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150125165114.GE31987@krava.brq.redhat.com>
Date:	Sun, 25 Jan 2015 17:51:14 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Olsa <jolsa@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH 2/5] tools lib api fs: Add tracefs mount helper functions

On Sat, Jan 24, 2015 at 01:13:32PM -0500, Steven Rostedt wrote:

SNIP

> +static const char * const tracefs_known_mountpoints[] = {
> +	TRACEFS_DEFAULT_PATH,
> +	"/sys/kernel/debug/tracing",
> +	"/tracing",
> +	"/trace",
> +	0,
> +};
> +
> +static bool tracefs_found;
> +
> +/* find the path to the mounted tracefs */
> +const char *tracefs_find_mountpoint(void)
> +{
> +	if (tracefs_found)
> +		return (const char *)tracefs_mountpoint;
> +
> +	return find_mountpoint("tracefs", (long) TRACEFS_MAGIC,
> +			       tracefs_mountpoint, PATH_MAX + 1,
> +			       tracefs_known_mountpoints);
> +}

also tracefs_found is not set 'true' in case we succeed..

jirka
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/