Date: Fri, 2 Dec 2011 19:59:46 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r228207 - head/sys/kern Message-ID: <201112021959.pB2Jxka6006739@svn.freebsd.org>
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Author: jhb Date: Fri Dec 2 19:59:46 2011 New Revision: 228207 URL: http://svn.freebsd.org/changeset/base/228207 Log: When changing the user priority of a thread, change the real priority in addition to the user priority for threads whose current real priority is equal to the previous user priority or if the new priority is a real-time priority. This allows priority changes of other threads to have an immediate effect. MFC after: 2 weeks Modified: head/sys/kern/kern_resource.c Modified: head/sys/kern/kern_resource.c ============================================================================== --- head/sys/kern/kern_resource.c Fri Dec 2 19:56:46 2011 (r228206) +++ head/sys/kern/kern_resource.c Fri Dec 2 19:59:46 2011 (r228207) @@ -488,8 +488,9 @@ rtp_to_pri(struct rtprio *rtp, struct th sched_class(td, rtp->type); /* XXX fix */ oldpri = td->td_user_pri; sched_user_prio(td, newpri); - if (curthread == td) - sched_prio(curthread, td->td_user_pri); /* XXX dubious */ + if (td->td_user_pri != oldpri && (td == curthread || + td->td_priority == oldpri || td->td_user_pri >= PRI_MAX_REALTIME)) + sched_prio(td, td->td_user_pri); if (TD_ON_UPILOCK(td) && oldpri != newpri) { critical_enter(); thread_unlock(td);
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