diff options
| author | John Baldwin <jhb@FreeBSD.org> | 2001-01-24 00:35:12 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2001-01-24 00:35:12 +0000 |
| commit | e5690aadaa4022bff9b38e68d3eded7918e11c26 (patch) | |
| tree | 466620d63ed8c9cc2e5240d55a93d9dae3fdbb23 /sys/kern/kern_event.c | |
| parent | a914fb6b27c9e4bca79cf2c4b7f568777347e0d3 (diff) | |
Notes
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 1a89d3248896..c1604d2af5c2 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 |