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For SCHED_OTHER, we always inherit current thread's interactive priority

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unless current thread is realtime thread, in such case, we set a new zero
priority for it, notice we don't have per-thread nice, the priority
passed by userland is ignored here.
This commit is contained in:
David Xu 2006-07-11 06:01:14 +00:00
parent a0712c99d0
commit 2f26f4c66c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=160255
1 changed files with 10 additions and 6 deletions
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16
sys/kern/kern_thr.c
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@ -217,23 +217,27 @@ create_thread(struct thread *td, mcontext_t *ctx,
case SCHED_FIFO:
rtp.type = PRI_FIFO;
rtp.prio = sched->param.sched_priority;
rtp_to_pri(&rtp, newkg);
sched_prio(newtd, newkg->kg_user_pri);
break;
case SCHED_RR:
rtp.type = PRI_REALTIME;
rtp.prio = sched->param.sched_priority;
rtp_to_pri(&rtp, newkg);
sched_prio(newtd, newkg->kg_user_pri);
break;
case SCHED_OTHER:
rtp.type = PRI_TIMESHARE;
if (curthread->td_ksegrp->kg_pri_class == PRI_TIMESHARE)
rtp.prio = curthread->td_ksegrp->kg_user_pri;
else
if (curthread->td_ksegrp->kg_pri_class !=
PRI_TIMESHARE) {
rtp.type = PRI_TIMESHARE;
rtp.prio = 0;
rtp_to_pri(&rtp, newkg);
sched_prio(newtd, newkg->kg_user_pri);
}
break;
default:
panic("sched policy");
}
rtp_to_pri(&rtp, newkg);
sched_prio(newtd, newkg->kg_user_pri);
}
TD_SET_CAN_RUN(newtd);
/* if ((flags & THR_SUSPENDED) == 0) */