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| author | Paul E. McKenney <paulmck@kernel.org> | 2020-11-17 14:12:24 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-01-06 17:17:20 -0800 |
| commit | 1eba0ef981fd3b5d5e94243aeced8884f43aef50 (patch) | |
| tree | 51e2ef97c45714ba11faab6984fc6077efb4a582 /kernel | |
| parent | ed24affa71f7abf7d81698a99b6c2623491a35b0 (diff) | |
| download | linux-1eba0ef981fd3b5d5e94243aeced8884f43aef50.tar.gz linux-1eba0ef981fd3b5d5e94243aeced8884f43aef50.tar.bz2 linux-1eba0ef981fd3b5d5e94243aeced8884f43aef50.zip | |
rcutorture: Use hrtimers for reader and writer delays
This commit replaces schedule_timeout_uninterruptible() and
schedule_timeout_interruptible() with torture_hrtimeout_us() and
torture_hrtimeout_jiffies() to avoid timer-wheel synchronization.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/rcu/rcutorture.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 9414e3027a04..007595d4783f 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1149,7 +1149,7 @@ rcu_torture_writer(void *arg) do { rcu_torture_writer_state = RTWS_FIXED_DELAY; - schedule_timeout_uninterruptible(1); + torture_hrtimeout_us(500, 1000, &rand); rp = rcu_torture_alloc(); if (rp == NULL) continue; @@ -1290,8 +1290,7 @@ rcu_torture_fakewriter(void *arg) set_user_nice(current, MAX_NICE); do { - schedule_timeout_uninterruptible(1 + torture_random(&rand)%10); - udelay(torture_random(&rand) & 0x3ff); + torture_hrtimeout_jiffies(torture_random(&rand) % 10, &rand); if (cur_ops->cb_barrier != NULL && torture_random(&rand) % (nfakewriters * 8) == 0) { cur_ops->cb_barrier(); @@ -1656,7 +1655,7 @@ rcu_torture_reader(void *arg) if (!rcu_torture_one_read(&rand, myid) && !torture_must_stop()) schedule_timeout_interruptible(HZ); if (time_after(jiffies, lastsleep) && !torture_must_stop()) { - schedule_timeout_interruptible(1); + torture_hrtimeout_us(500, 1000, &rand); lastsleep = jiffies + 10; } while (num_online_cpus() < mynumonline && !torture_must_stop()) |