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| author |   Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2015-02-02 14:35:06 -0500 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-07 14:00:10 +0100 |
| commit | dd6dda27a8be563eaebb3f38b1d1d50920bb7991 (patch) | |
| tree | 8b7ff4c2bb077665ad83897be7bfff7b5dee5a6b /tools/lib/api/fs/debugfs.c | |
| parent | tools lib api debugfs: Add DEBUGFS_DEFAULT_PATH macro (diff) | |
| download | wireguard-linux-dd6dda27a8be563eaebb3f38b1d1d50920bb7991.tar.xz wireguard-linux-dd6dda27a8be563eaebb3f38b1d1d50920bb7991.zip | |
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 <rostedt@goodmis.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20150202193553.190606690@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/api/fs/debugfs.c')
| -rw-r--r-- | tools/lib/api/fs/debugfs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c index 07d74b03d828..8305b3e9d48e 100644 --- a/tools/lib/api/fs/debugfs.c +++ b/tools/lib/api/fs/debugfs.c @@ -3,8 +3,11 @@ #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> @@ -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) { |