diff options
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/rcutorture.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index afa98162575d..a4c4a24bdcaa 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1629,7 +1629,8 @@ static bool rcu_fwd_emergency_stop; #define MAX_FWD_CB_JIFFIES (8 * HZ) /* Maximum CB test duration. */ #define MIN_FWD_CB_LAUNDERS 3 /* This many CB invocations to count. */ #define MIN_FWD_CBS_LAUNDERED 100 /* Number of counted CBs. */ -static long n_launders_hist[2 * MAX_FWD_CB_JIFFIES / HZ]; +#define FWD_CBS_HIST_DIV 10 /* Histogram buckets/second. */ +static long n_launders_hist[2 * MAX_FWD_CB_JIFFIES / (HZ / FWD_CBS_HIST_DIV)]; static void rcu_torture_fwd_cb_hist(void) { @@ -1642,7 +1643,8 @@ static void rcu_torture_fwd_cb_hist(void) pr_alert("%s: Callback-invocation histogram (duration %lu jiffies):", __func__, jiffies - rcu_fwd_startat); for (j = 0; j <= i; j++) - pr_cont(" %ds: %ld", j + 1, n_launders_hist[j]); + pr_cont(" %ds/%d: %ld", + j + 1, FWD_CBS_HIST_DIV, n_launders_hist[j]); pr_cont("\n"); } @@ -1661,7 +1663,7 @@ static void rcu_torture_fwd_cb_cr(struct rcu_head *rhp) rcu_fwd_cb_tail = &rfcp->rfc_next; WRITE_ONCE(*rfcpp, rfcp); WRITE_ONCE(n_launders_cb, n_launders_cb + 1); - i = ((jiffies - rcu_fwd_startat) / HZ); + i = ((jiffies - rcu_fwd_startat) / (HZ / FWD_CBS_HIST_DIV)); if (i >= ARRAY_SIZE(n_launders_hist)) i = ARRAY_SIZE(n_launders_hist) - 1; n_launders_hist[i]++; |