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rcutorture: Move SRCU status printing to SRCU implementations

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This commit gets rid of some ugly #ifdefs in rcutorture.c by moving
the SRCU status printing to the SRCU implementations.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney
2017-05-22 13:31:03 -07:00
parent 520eccdfe1
commit 115a1a5285
4 changed files with 49 additions and 38 deletions
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34
kernel/rcu/srcutree.c
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@@ -1217,6 +1217,40 @@ void srcutorture_get_gp_data(enum rcutorture_type test_type,
}
EXPORT_SYMBOL_GPL(srcutorture_get_gp_data);
void srcu_torture_stats_print(struct srcu_struct *sp, char *tt, char *tf)
{
int cpu;
int idx;
idx = sp->srcu_idx & 0x1;
pr_alert("%s%s Tree SRCU per-CPU(idx=%d):", tt, tf, idx);
for_each_possible_cpu(cpu) {
unsigned long l0, l1;
unsigned long u0, u1;
long c0, c1;
struct srcu_data *counts;
counts = per_cpu_ptr(sp->sda, cpu);
u0 = counts->srcu_unlock_count[!idx];
u1 = counts->srcu_unlock_count[idx];
/*
* Make sure that a lock is always counted if the corresponding
* unlock is counted.
*/
smp_rmb();
l0 = counts->srcu_lock_count[!idx];
l1 = counts->srcu_lock_count[idx];
c0 = l0 - u0;
c1 = l1 - u1;
pr_cont(" %d(%ld,%ld)", cpu, c0, c1);
}
pr_cont("\n");
}
EXPORT_SYMBOL_GPL(srcu_torture_stats_print);
static int __init srcu_bootup_announce(void)
{
pr_info("Hierarchical SRCU implementation.\n");