rcutorture: Print negatives for SRCU counter wraparound
The srcu_torture_stats() function prints SRCU's per-CPU c[] array with an unsigned format, which means that the number one less than zero is a very large number. This commit therefore prints this array with a signed format in order to improve readability of the rcutorture output. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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@ -492,9 +492,11 @@ static void srcu_torture_stats(char *page)
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page += sprintf(page, "%s%s per-CPU(idx=%d):",
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torture_type, TORTURE_FLAG, idx);
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for_each_possible_cpu(cpu) {
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page += sprintf(page, " %d(%lu,%lu)", cpu,
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per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[!idx],
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per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[idx]);
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long c0, c1;
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c0 = (long)per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[!idx];
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c1 = (long)per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[idx];
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page += sprintf(page, " %d(%ld,%ld)", cpu, c0, c1);
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}
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sprintf(page, "\n");
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}
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