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Only change the priority of timeshare threads to PRI_MAX_TIMESHARE

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when yield() is called.  Specifically, leave the priority of real time
and idle threads unchanged.

MFC after:	2 weeks
This commit is contained in:
John Baldwin 2011-01-06 22:19:15 +00:00
parent a8f4344f08
commit 177499ebcc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=217077
1 changed files with 2 additions and 1 deletions
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3
sys/kern/kern_synch.c
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@ -546,7 +546,8 @@ yield(struct thread *td, struct yield_args *uap)
{
thread_lock(td);
sched_prio(td, PRI_MAX_TIMESHARE);
if (PRI_BASE(td->td_pri_class) == PRI_TIMESHARE)
sched_prio(td, PRI_MAX_TIMESHARE);
mi_switch(SW_VOL | SWT_RELINQUISH, NULL);
thread_unlock(td);
td->td_retval[0] = 0;