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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-11-16 14:03:07 -0200 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-11-28 10:11:28 -0200 |
commit | ebf294bf4f147aff29df5a16bfb0f8ebca15feaa (patch) | |
tree | 37464624abf9243100eab47fdc663def4be121fe /tools/perf/util/debugfs.h | |
parent | c168fbfb93a1c4044287858c6784f0bd1f6cfe33 (diff) | |
download | op-kernel-dev-ebf294bf4f147aff29df5a16bfb0f8ebca15feaa.zip op-kernel-dev-ebf294bf4f147aff29df5a16bfb0f8ebca15feaa.tar.gz |
perf tools: Simplify debugfs mountpoint handling code
We don't need to have two PATH_MAX char sized arrays holding it, just
one in util/debugfs.c will do.
Also rename debugfs_path to tracing_events_path, as it is not the path
to debugfs, that is debugfs_mountpoint. Both are now accessible.
This will allow accessing this code in the perf python binding without
having to drag in perf.c and util/parse-events.c.
The defaults for these variables are the canonical "/sys/kernel/debug"
and "/sys/kernel/debug/tracing/events/", removing the need for simple
tools to call debugfs_mount(NULL).
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ug9jvtjrsqbluuhqqxpvg30f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/debugfs.h')
-rw-r--r-- | tools/perf/util/debugfs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/debugfs.h b/tools/perf/util/debugfs.h index 8cd3fa0..4a878f7 100644 --- a/tools/perf/util/debugfs.h +++ b/tools/perf/util/debugfs.h @@ -6,9 +6,13 @@ int debugfs_valid_mountpoint(const char *debugfs); int debugfs_valid_entry(const char *path); char *debugfs_mount(const char *mountpoint); int debugfs_umount(void); +void debugfs_set_path(const char *mountpoint); int debugfs_write(const char *entry, const char *value); int debugfs_read(const char *entry, char *buffer, size_t size); void debugfs_force_cleanup(void); int debugfs_make_path(const char *element, char *buffer, int size); +extern char debugfs_mountpoint[]; +extern char tracing_events_path[]; + #endif /* __DEBUGFS_H__ */ |