diff options
Diffstat (limited to 'runtime/staprun/ctl.c')
| -rw-r--r-- | runtime/staprun/ctl.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/runtime/staprun/ctl.c b/runtime/staprun/ctl.c index 72592bdf..d0b07260 100644 --- a/runtime/staprun/ctl.c +++ b/runtime/staprun/ctl.c @@ -16,11 +16,13 @@ int init_ctl_channel(void) { char buf[PATH_MAX]; struct statfs st; + int old_transport = 0; if (statfs("/sys/kernel/debug", &st) == 0 && (int) st.f_type == (int) DEBUGFS_MAGIC) { if (sprintf_chk(buf, "/sys/kernel/debug/systemtap/%s/cmd", modname)) return -1; } else { + old_transport = 1; if (sprintf_chk(buf, "/proc/systemtap/%s/cmd", modname)) return -1; } @@ -34,7 +36,7 @@ int init_ctl_channel(void) perr("Couldn't open control channel '%s'", buf); return -1; } - return 0; + return old_transport; } void close_ctl_channel(void) |