diff options
| author | Steven Rostedt (Red Hat) <[email protected]> | 2015-02-02 14:35:06 -0500 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2015-02-07 14:00:10 +0100 |
| commit | dd6dda27a8be563eaebb3f38b1d1d50920bb7991 (patch) | |
| tree | 8b7ff4c2bb077665ad83897be7bfff7b5dee5a6b /tools/lib/api/fs/tracefs.c | |
| parent | a9edf60749a9483341facfa7c28bcf8afb3c8311 (diff) | |
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 <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/lib/api/fs/tracefs.c')
| -rw-r--r-- | tools/lib/api/fs/tracefs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/lib/api/fs/tracefs.c b/tools/lib/api/fs/tracefs.c index ef40d15821e9..e4aa9688b71e 100644 --- a/tools/lib/api/fs/tracefs.c +++ b/tools/lib/api/fs/tracefs.c @@ -2,8 +2,11 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <unistd.h> #include <stdbool.h> #include <sys/vfs.h> +#include <sys/types.h> +#include <sys/stat.h> #include <sys/mount.h> #include <linux/kernel.h> @@ -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) { |