diff options
| -rw-r--r-- | runtime/procfs.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/runtime/procfs.c b/runtime/procfs.c index d6b75336..1d2ad837 100644 --- a/runtime/procfs.c +++ b/runtime/procfs.c @@ -38,6 +38,11 @@ static void _stp_close_procfs(void); */ static void _stp_rmdir_proc_module(void) { + if (!_stp_lock_transport_dir()) { + errk("Unable to lock transport directory.\n"); + return; + } + if (_stp_proc_root && _stp_proc_root->subdir == NULL) { if (atomic_read(&_stp_proc_root->count) != LAST_ENTRY_COUNT) _stp_warn("Removal of /proc/systemtap/%s\nis deferred until it is no longer in use.\n" @@ -46,12 +51,7 @@ static void _stp_rmdir_proc_module(void) _stp_proc_root = NULL; } - if (_stp_proc_stap) { - if (!_stp_lock_transport_dir()) { - errk("Unable to lock transport directory.\n"); - return; - } - + if (_stp_proc_stap && _stp_proc_stap->subdir == NULL) { /* Important! Do not attempt removal of /proc/systemtap */ /* if in use. This will put the PDE in deleted state */ /* pending usage count dropping to 0. During this time, */ @@ -63,9 +63,8 @@ static void _stp_rmdir_proc_module(void) remove_proc_entry("systemtap", NULL); _stp_proc_stap = NULL; } - - _stp_unlock_transport_dir(); } + _stp_unlock_transport_dir(); } |