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| author | kib <kib@FreeBSD.org> | 2016-12-26 09:52:19 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2016-12-26 09:52:19 +0000 |
| commit | a23ff62742978f29a5c7087c93a9998b6406cc7b (patch) | |
| tree | e3816107264541038923aa0573ab0047d4b56908 /sys/kern | |
| parent | 07f1e61a12d229d80df3469fc35331b20f90eefd (diff) | |
| download | FreeBSD-src-a23ff62742978f29a5c7087c93a9998b6406cc7b.zip FreeBSD-src-a23ff62742978f29a5c7087c93a9998b6406cc7b.tar.gz | |
MFC r310302:
Do not clear KN_INFLUX when not owning influx state.
PR: 214923
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/kern_event.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c index b734cf2..e832120 100644 --- a/sys/kern/kern_event.c +++ b/sys/kern/kern_event.c @@ -2006,6 +2006,7 @@ knote(struct knlist *list, long hint, int lockflags) struct kqueue *kq; struct knote *kn, *tkn; int error; + bool own_influx; if (list == NULL) return; @@ -2036,11 +2037,14 @@ knote(struct knlist *list, long hint, int lockflags) */ KQ_UNLOCK(kq); } else if ((lockflags & KNF_NOKQLOCK) != 0) { - kn->kn_status |= KN_INFLUX; + own_influx = (kn->kn_status & KN_INFLUX) == 0; + if (own_influx) + kn->kn_status |= KN_INFLUX; KQ_UNLOCK(kq); error = kn->kn_fop->f_event(kn, hint); KQ_LOCK(kq); - kn->kn_status &= ~KN_INFLUX; + if (own_influx) + kn->kn_status &= ~KN_INFLUX; if (error) KNOTE_ACTIVATE(kn, 1); KQ_UNLOCK_FLUX(kq); |
