Date: Tue, 24 Dec 2013 19:03:31 +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-8@freebsd.org Subject: svn commit: r259836 - stable/8/sys/kern Message-ID: <201312241903.rBOJ3Vdk028710@svn.freebsd.org>
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Author: jhb Date: Tue Dec 24 19:03:30 2013 New Revision: 259836 URL: http://svnweb.freebsd.org/changeset/base/259836 Log: MFC 258869: Fix an off-by-one error in r228960. The maximum priority delta provided by SCHED_PRI_TICKS should be SCHED_PRI_RANGE - 1 so that the resulting priority value (before nice adjustment) is between SCHED_PRI_MIN and SCHED_PRI_MAX, inclusive. Modified: stable/8/sys/kern/sched_ule.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/kern/ (props changed) Modified: stable/8/sys/kern/sched_ule.c ============================================================================== --- stable/8/sys/kern/sched_ule.c Tue Dec 24 19:02:04 2013 (r259835) +++ stable/8/sys/kern/sched_ule.c Tue Dec 24 19:03:30 2013 (r259836) @@ -1488,7 +1488,7 @@ sched_priority(struct thread *td) pri = SCHED_PRI_MIN; if (td->td_sched->ts_ticks) pri += min(SCHED_PRI_TICKS(td->td_sched), - SCHED_PRI_RANGE); + SCHED_PRI_RANGE - 1); pri += SCHED_PRI_NICE(td->td_proc->p_nice); KASSERT(pri >= PRI_MIN_BATCH && pri <= PRI_MAX_BATCH, ("sched_priority: invalid priority %d: nice %d, "
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