Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'sched_urgent_for_v5.18_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
- Fix a corner case when calculating sched runqueue variables
That fix also removes a check for a zero divisor in the code, without
mentioning it. Vincent clarified that it's ok after I whined about it:
https://lore.kernel.org/all/CAKfTPtD2QEyZ6ADd5WrwETMOX0XOwJGnVddt7VHgfURdqgOS-Q@mail.gmail.com/
* tag 'sched_urgent_for_v5.18_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/pelt: Fix attach_entity_load_avg() corner case
+5
-5
+5
-5
kernel/sched/fair.c
+5
-5
kernel/sched/fair.c
···
3829
3829
3830
3830
se->avg.runnable_sum = se->avg.runnable_avg * divider;
3831
3831
3832
-
se->avg.load_sum = divider;
3833
-
if (se_weight(se)) {
3834
-
se->avg.load_sum =
3835
-
div_u64(se->avg.load_avg * se->avg.load_sum, se_weight(se));
3836
-
}
3832
+
se->avg.load_sum = se->avg.load_avg * divider;
3833
+
if (se_weight(se) < se->avg.load_sum)
3834
+
se->avg.load_sum = div_u64(se->avg.load_sum, se_weight(se));
3835
+
else
3836
+
se->avg.load_sum = 1;
3837
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3838
enqueue_load_avg(cfs_rq, se);
3839
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cfs_rq->avg.util_avg += se->avg.util_avg;