The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 7e866460cc18797b3a59360f5f8c444598a21729
Gitweb:
https://git.kernel.org/tip/7e866460cc18797b3a59360f5f8c444598a21729
Author: Joel Fernandes (Google) <j...@joelfernandes.org>
AuthorDate: Mon, 25 May 2020 00:36:47 -04:00
Committer: Paul E. McKenney <paul...@kernel.org>
CommitterDate: Mon, 29 Jun 2020 12:00:44 -07:00
rcuperf: Remove useless while loops around wait_event
wait_event() already retries if the condition for the wake up is not
satisifed after wake up. Remove them from the rcuperf test.
Signed-off-by: Joel Fernandes (Google) <j...@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paul...@kernel.org>
---
kernel/rcu/rcuperf.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuperf.c
index 16dd1e6..246da8f 100644
--- a/kernel/rcu/rcuperf.c
+++ b/kernel/rcu/rcuperf.c
@@ -576,11 +576,8 @@ static int compute_real(int n)
static int
rcu_perf_shutdown(void *arg)
{
- do {
- wait_event(shutdown_wq,
- atomic_read(&n_rcu_perf_writer_finished) >=
- nrealwriters);
- } while (atomic_read(&n_rcu_perf_writer_finished) < nrealwriters);
+ wait_event(shutdown_wq,
+ atomic_read(&n_rcu_perf_writer_finished) >= nrealwriters);
smp_mb(); /* Wake before output. */
rcu_perf_cleanup();
kernel_power_off();
@@ -693,11 +690,8 @@ kfree_perf_cleanup(void)
static int
kfree_perf_shutdown(void *arg)
{
- do {
- wait_event(shutdown_wq,
- atomic_read(&n_kfree_perf_thread_ended) >=
- kfree_nrealthreads);
- } while (atomic_read(&n_kfree_perf_thread_ended) < kfree_nrealthreads);
+ wait_event(shutdown_wq,
+ atomic_read(&n_kfree_perf_thread_ended) >=
kfree_nrealthreads);
smp_mb(); /* Wake before output. */
