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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2015-02-02 14:35:03 -0500 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-07 13:51:34 +0100 |
| commit | cde164aee9e0343831467035eb96dd5506742648 (patch) | |
| tree | 8353fdc346aa319d7b88990ea007b22be9a372f3 /tools/lib/api/fs/findfs.h | |
| parent | 5693c92660970851e95f769ff27397f5098a6296 (diff) | |
| download | linux-cde164aee9e0343831467035eb96dd5506742648.tar.gz linux-cde164aee9e0343831467035eb96dd5506742648.tar.bz2 linux-cde164aee9e0343831467035eb96dd5506742648.zip | |
tools lib fs: Add helper to find mounted file systems
In preparation for adding tracefs for perf to use, create a findfs
helper utility that find_debugfs uses instead of hard coding the search
in the code. This will allow for a find_tracefs to be used as well.
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/20150202193552.735023362@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/api/fs/findfs.h')
| -rw-r--r-- | tools/lib/api/fs/findfs.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/lib/api/fs/findfs.h b/tools/lib/api/fs/findfs.h new file mode 100644 index 000000000000..9e7d876791e1 --- /dev/null +++ b/tools/lib/api/fs/findfs.h @@ -0,0 +1,21 @@ +#ifndef __API_FINDFS_H__ +#define __API_FINDFS_H__ + +#define _STR(x) #x +#define STR(x) _STR(x) + +/* + * On most systems <limits.h> would have given us this, but not on some systems + * (e.g. GNU/Hurd). + */ +#ifndef PATH_MAX +#define PATH_MAX 4096 +#endif + +const char *find_mountpoint(const char *fstype, long magic, + char *mountpoint, int len, + const char * const *known_mountpoints); + +int valid_mountpoint(const char *mount, long magic); + +#endif /* __API_FINDFS_H__ */ |