Author: jhb
Date: Tue Dec 24 19:02:04 2013
New Revision: 259835
URL: http://svnweb.freebsd.org/changeset/base/259835
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/9/sys/kern/sched_ule.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/kern/sched_ule.c
==============================================================================
--- stable/9/sys/kern/sched_ule.c Tue Dec 24 19:01:08 2013
(r259834)
+++ stable/9/sys/kern/sched_ule.c Tue Dec 24 19:02:04 2013
(r259835)
@@ -1499,7 +1499,7 @@ 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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