Date: Tue, 3 Dec 2013 14:50:13 +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: r258869 - head/sys/kern Message-ID: <201312031450.rB3EoDZe058396@svn.freebsd.org>
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Author: jhb Date: Tue Dec 3 14:50:12 2013 New Revision: 258869 URL: http://svnweb.freebsd.org/changeset/base/258869 Log: 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. Submitted by: kib Reported by: pho MFC after: 1 week Modified: head/sys/kern/sched_ule.c Modified: head/sys/kern/sched_ule.c ============================================================================== --- head/sys/kern/sched_ule.c Tue Dec 3 13:38:13 2013 (r258868) +++ head/sys/kern/sched_ule.c Tue Dec 3 14:50:12 2013 (r258869) @@ -1532,7 +1532,7 @@ 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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