mirror of https://github.com/OpenIPC/firmware.git
13 lines
441 B
Diff
13 lines
441 B
Diff
--- linux-4.9.37/kernel/sched/cputime.c 2017-07-12 16:42:41.000000000 +0300
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+++ linux-4.9.y/kernel/sched/cputime.c 2021-06-07 13:01:34.000000000 +0300
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@@ -75,6 +75,9 @@
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u64 *cpustat = kcpustat_this_cpu->cpustat;
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cputime_t irq_cputime;
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+ if (nsecs_to_cputime64(irqtime) <= cpustat[idx])
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+ return 0;
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+
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irq_cputime = nsecs_to_cputime64(irqtime) - cpustat[idx];
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irq_cputime = min(irq_cputime, maxtime);
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cpustat[idx] += irq_cputime;
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