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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2015-02-02 20:35:07 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-02-11 16:37:08 +0100
commit23773ca18b399051eb94f98b689cf7a9173c795b (patch)
tree17629936892375049fd68b096389e8c24bc07a4a /tools/perf/util/cache.h
parenttools lib api fs: Add {tracefs,debugfs}_configured() functions (diff)
downloadlinux-23773ca18b399051eb94f98b689cf7a9173c795b.tar.xz
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perf tools: Make perf aware of tracefs
As tracefs may be mounted instead of debugfs to get to the event directories, have perf know about tracefs, and use that file system over debugfs if it is present. 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/20150202193553.340946602@goodmis.org [ Fixed up error messages about tracefs pointed out by Namhyung ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cache.h')
-rw-r--r--tools/perf/util/cache.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index d04d770d90f6..fbcca21d66ab 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -17,6 +17,7 @@
#define EXEC_PATH_ENVIRONMENT "PERF_EXEC_PATH"
#define DEFAULT_PERF_DIR_ENVIRONMENT ".perf"
#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"
+#define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"
typedef int (*config_fn_t)(const char *, const char *, void *);
extern int perf_default_config(const char *, const char *, void *);