From ebf294bf4f147aff29df5a16bfb0f8ebca15feaa Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 16 Nov 2011 14:03:07 -0200 Subject: 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 Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-ug9jvtjrsqbluuhqqxpvg30f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/debugfs.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'tools/perf/util/debugfs.h') diff --git a/tools/perf/util/debugfs.h b/tools/perf/util/debugfs.h index 8cd3fa0af880..4a878f735eb0 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__ */ -- cgit