From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754905AbbBRS3f (ORCPT ); Wed, 18 Feb 2015 13:29:35 -0500 Received: from terminus.zytor.com ([198.137.202.10]:40881 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752255AbbBRS3c (ORCPT ); Wed, 18 Feb 2015 13:29:32 -0500 Date: Wed, 18 Feb 2015 10:29:05 -0800 From: "tip-bot for Steven Rostedt (Red Hat)" Message-ID: Cc: linux-kernel@vger.kernel.org, jolsa@kernel.org, acme@redhat.com, tglx@linutronix.de, rostedt@goodmis.org, mingo@kernel.org, masami.hiramatsu.pt@hitachi.com, hpa@zytor.com, namhyung@kernel.org, akpm@linux-foundation.org Reply-To: hpa@zytor.com, akpm@linux-foundation.org, namhyung@kernel.org, mingo@kernel.org, rostedt@goodmis.org, tglx@linutronix.de, jolsa@kernel.org, acme@redhat.com, linux-kernel@vger.kernel.org, masami.hiramatsu.pt@hitachi.com In-Reply-To: <20150202193553.190606690@goodmis.org> References: <20150202193553.190606690@goodmis.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] tools lib api fs: Add {tracefs, debugfs}_configured() functions Git-Commit-ID: dd6dda27a8be563eaebb3f38b1d1d50920bb7991 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: dd6dda27a8be563eaebb3f38b1d1d50920bb7991 Gitweb: http://git.kernel.org/tip/dd6dda27a8be563eaebb3f38b1d1d50920bb7991 Author: Steven Rostedt (Red Hat) AuthorDate: Mon, 2 Feb 2015 14:35:06 -0500 Committer: Arnaldo Carvalho de Melo CommitDate: Sat, 7 Feb 2015 14:00:10 +0100 tools lib api fs: Add {tracefs,debugfs}_configured() functions Add tracefs_configured() to return true if tracefs is configured in the kernel (succeeds to find tracefs), and debugfs_configured() if debugfs is configured in the kernel (succeeds to find debugfs). Signed-off-by: Steven Rostedt Acked-by: Jiri Olsa Cc: Andrew Morton Cc: Ingo Molnar Cc: Masami Hiramatsu Cc: Namhyung Kim Link: http://lkml.kernel.org/r/20150202193553.190606690@goodmis.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/api/fs/debugfs.c | 8 ++++++++ tools/lib/api/fs/debugfs.h | 1 + tools/lib/api/fs/findfs.h | 2 ++ tools/lib/api/fs/tracefs.c | 8 ++++++++ tools/lib/api/fs/tracefs.h | 1 + 5 files changed, 20 insertions(+) diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c index 07d74b0..8305b3e 100644 --- a/tools/lib/api/fs/debugfs.c +++ b/tools/lib/api/fs/debugfs.c @@ -3,8 +3,11 @@ #include #include #include +#include #include #include +#include +#include #include #include @@ -24,6 +27,11 @@ static const char * const debugfs_known_mountpoints[] = { static bool debugfs_found; +bool debugfs_configured(void) +{ + return debugfs_find_mountpoint() != NULL; +} + /* find the path to the mounted debugfs */ const char *debugfs_find_mountpoint(void) { diff --git a/tools/lib/api/fs/debugfs.h b/tools/lib/api/fs/debugfs.h index 1074ac8..4550236 100644 --- a/tools/lib/api/fs/debugfs.h +++ b/tools/lib/api/fs/debugfs.h @@ -11,6 +11,7 @@ #define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR" #endif +bool debugfs_configured(void); const char *debugfs_find_mountpoint(void); char *debugfs_mount(const char *mountpoint); diff --git a/tools/lib/api/fs/findfs.h b/tools/lib/api/fs/findfs.h index 9e7d876..b6f5d05 100644 --- a/tools/lib/api/fs/findfs.h +++ b/tools/lib/api/fs/findfs.h @@ -1,6 +1,8 @@ #ifndef __API_FINDFS_H__ #define __API_FINDFS_H__ +#include + #define _STR(x) #x #define STR(x) _STR(x) diff --git a/tools/lib/api/fs/tracefs.c b/tools/lib/api/fs/tracefs.c index ef40d15..e4aa968 100644 --- a/tools/lib/api/fs/tracefs.c +++ b/tools/lib/api/fs/tracefs.c @@ -2,8 +2,11 @@ #include #include #include +#include #include #include +#include +#include #include #include @@ -25,6 +28,11 @@ static const char * const tracefs_known_mountpoints[] = { static bool tracefs_found; +bool tracefs_configured(void) +{ + return tracefs_find_mountpoint() != NULL; +} + /* find the path to the mounted tracefs */ const char *tracefs_find_mountpoint(void) { diff --git a/tools/lib/api/fs/tracefs.h b/tools/lib/api/fs/tracefs.h index e6f7f51..da780ac 100644 --- a/tools/lib/api/fs/tracefs.h +++ b/tools/lib/api/fs/tracefs.h @@ -11,6 +11,7 @@ #define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR" #endif +bool tracefs_configured(void); const char *tracefs_find_mountpoint(void); int tracefs_valid_mountpoint(const char *debugfs); char *tracefs_mount(const char *mountpoint);