diff options
Diffstat (limited to 'sys/kern/kern_event.c')
| -rw-r--r-- | sys/kern/kern_event.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c index 1a89d32..c1604d2 100644 --- a/sys/kern/kern_event.c +++ b/sys/kern/kern_event.c @@ -215,8 +215,9 @@ filt_procattach(struct knote *kn) kn->kn_flags &= ~EV_FLAG1; } - /* XXX lock the proc here while adding to the list? */ + PROC_LOCK(p); SLIST_INSERT_HEAD(&p->p_klist, kn, kn_selnext); + PROC_UNLOCK(p); return (0); } @@ -237,8 +238,9 @@ filt_procdetach(struct knote *kn) if (kn->kn_status & KN_DETACHED) return; - /* XXX locking? this might modify another process. */ + PROC_LOCK(p); SLIST_REMOVE(&p->p_klist, kn, knote, kn_selnext); + PROC_UNLOCK(p); } static int |
