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srcu: Add GP and maximum requested GP to Tiny SRCU rcutorture output

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This commit adds the ->srcu_idx and ->srcu_max_idx fields to the Tiny
SRCU rcutorture output for additional diagnostics.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2022-08-02 10:18:23 -07:00
parent 599d97e3f2
commit d66e4cf974
1 changed files with 4 additions and 2 deletions
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6
include/linux/srcutiny.h
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@ -82,10 +82,12 @@ static inline void srcu_torture_stats_print(struct srcu_struct *ssp,
int idx;
idx = ((data_race(READ_ONCE(ssp->srcu_idx)) + 1) & 0x2) >> 1;
pr_alert("%s%s Tiny SRCU per-CPU(idx=%d): (%hd,%hd)\n",
pr_alert("%s%s Tiny SRCU per-CPU(idx=%d): (%hd,%hd) gp: %hu->%hu\n",
tt, tf, idx,
data_race(READ_ONCE(ssp->srcu_lock_nesting[!idx])),
data_race(READ_ONCE(ssp->srcu_lock_nesting[idx])));
data_race(READ_ONCE(ssp->srcu_lock_nesting[idx])),
data_race(READ_ONCE(ssp->srcu_idx)),
data_race(READ_ONCE(ssp->srcu_idx_max)));
}
#endif