Date: Thu, 5 Jan 2012 18:55:59 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r229619 - stable/9/sys/kern Message-ID: <201201051855.q05ItxE8050067@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: jhb Date: Thu Jan 5 18:55:59 2012 New Revision: 229619 URL: http://svn.freebsd.org/changeset/base/229619 Log: MFC 228207: 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. Modified: stable/9/sys/kern/kern_resource.c Directory Properties: stable/9/sys/ (props changed) stable/9/sys/amd64/include/xen/ (props changed) stable/9/sys/boot/ (props changed) stable/9/sys/boot/i386/efi/ (props changed) stable/9/sys/boot/ia64/efi/ (props changed) stable/9/sys/boot/ia64/ski/ (props changed) stable/9/sys/boot/powerpc/boot1.chrp/ (props changed) stable/9/sys/boot/powerpc/ofw/ (props changed) stable/9/sys/cddl/contrib/opensolaris/ (props changed) stable/9/sys/conf/ (props changed) stable/9/sys/contrib/dev/acpica/ (props changed) stable/9/sys/contrib/octeon-sdk/ (props changed) stable/9/sys/contrib/pf/ (props changed) stable/9/sys/contrib/x86emu/ (props changed) Modified: stable/9/sys/kern/kern_resource.c ============================================================================== --- stable/9/sys/kern/kern_resource.c Thu Jan 5 18:50:37 2012 (r229618) +++ stable/9/sys/kern/kern_resource.c Thu Jan 5 18:55:59 2012 (r229619) @@ -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);
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201201051855.q05ItxE8050067>