chan              167 kernel/proc.c    p->chan = 0;
chan              547 kernel/proc.c  sleep_prepare(void *chan)
chan              552 kernel/proc.c    if (chan == 0)
chan              554 kernel/proc.c    p->chan = chan;
chan              567 kernel/proc.c    if (p->chan != 0) {
chan              576 kernel/proc.c  wakeup(void *chan)
chan              582 kernel/proc.c      if (p->chan == chan) {
chan              585 kernel/proc.c        p->chan = 0;
chan               87 kernel/proc.h    void *chan;           // If non-zero, sleeping on chan