1991/0805/port/proc.c (diff list | history)

1991/0727/sys/src/9/port/proc.c:319,324 – 1991/0805/sys/src/9/port/proc.c:319,328 (short | long | prev | next)
postnote: only reset r->p if its us (seems dodgy? what's the race?) rsc Mon Mar 20 17:14:14 2006
1991/0727		sched(); /* notepending may go true while asleep */ if(p->notepending){ p->notepending = 0;
1991/0805		lock(r); if(r->p == p) r->p = 0; unlock(r);
1990/11211		error(Eintr);
1990/0227		} }
1991/0727/sys/src/9/port/proc.c:338,343 – 1991/0805/sys/src/9/port/proc.c:342,351
1991/0727		} if(p->notepending){ p->notepending = 0;
1991/0805		lock(r); if(r->p == p) r->p = 0; unlock(r);
1990/11211		error(Eintr);
1990/0227		} }
1991/0727/sys/src/9/port/proc.c:419,429 – 1991/0805/sys/src/9/port/proc.c:427,437
1990/0227		s = splhi(); lock(r);
1991/0727		if(p->r==r && r->p==p){ /* check we won the race */
1990/0227		r->p = 0; if(p->state != Wakeme) panic("postnote wakeup: not Wakeme"); p->r = 0; ready(p);
1991/0805		if(p->state == Wakeme){ r->p = 0; p->r = 0; ready(p); }
1990/0227		} unlock(r); splx(s);