summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--tools/perf/builtin-probe.c4
-rw-r--r--tools/perf/util/probe-event.c12
2 files changed, 10 insertions, 6 deletions
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 64bc11a..c1e5403 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -40,7 +40,6 @@
#include "util/debug.h"
#include "util/debugfs.h"
#include "util/parse-options.h"
-#include "util/parse-events.h" /* For debugfs_path */
#include "util/probe-finder.h"
#include "util/probe-event.h"
@@ -205,9 +204,6 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
!params.show_lines))
usage_with_options(probe_usage, options);
- if (debugfs_valid_mountpoint(debugfs_path) < 0)
- die("Failed to find debugfs path.");
-
if (params.list_events) {
if (params.nevents != 0 || params.dellist) {
pr_err(" Error: Don't use --list with --add/--del.\n");
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index ca108b2..1c4a20a 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -42,8 +42,8 @@
#include "color.h"
#include "symbol.h"
#include "thread.h"
+#include "debugfs.h"
#include "trace-event.h" /* For __unused */
-#include "parse-events.h" /* For debugfs_path */
#include "probe-event.h"
#include "probe-finder.h"
@@ -1075,10 +1075,18 @@ void clear_kprobe_trace_event(struct kprobe_trace_event *tev)
static int open_kprobe_events(bool readwrite)
{
char buf[PATH_MAX];
+ const char *__debugfs;
int ret;
- ret = e_snprintf(buf, PATH_MAX, "%s/../kprobe_events", debugfs_path);
+ __debugfs = debugfs_find_mountpoint();
+ if (__debugfs == NULL) {
+ pr_warning("Debugfs is not mounted.\n");
+ return -ENOENT;
+ }
+
+ ret = e_snprintf(buf, PATH_MAX, "%stracing/kprobe_events", __debugfs);
if (ret >= 0) {
+ pr_debug("Opening %s write=%d\n", buf, readwrite);
if (readwrite && !probe_event_dry_run)
ret = open(buf, O_RDWR, O_APPEND);
else
OpenPOWER on IntegriCloud