From: "Liam R. Howlett" <[email protected]> Add more threads and reduce the timing of the readers to increase the possibility of catching the rcu changes. The test does not pass unless the reader is seen.
Signed-off-by: Liam R. Howlett <[email protected]> Signed-off-by: Vlastimil Babka <[email protected]> --- tools/testing/radix-tree/maple.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/testing/radix-tree/maple.c b/tools/testing/radix-tree/maple.c index 2c0b3830125336af760768597d39ed07a2f8e92b..f6f923c9dc1039997953a94ec184c560b225c2d4 100644 --- a/tools/testing/radix-tree/maple.c +++ b/tools/testing/radix-tree/maple.c @@ -35062,7 +35062,7 @@ void run_check_rcu_slowread(struct maple_tree *mt, struct rcu_test_struct *vals) int i; void *(*function)(void *); - pthread_t readers[20]; + pthread_t readers[30]; unsigned int index = vals->index; mt_set_in_rcu(mt); @@ -35080,14 +35080,14 @@ void run_check_rcu_slowread(struct maple_tree *mt, struct rcu_test_struct *vals) } } - usleep(5); /* small yield to ensure all threads are at least started. */ + usleep(3); /* small yield to ensure all threads are at least started. */ while (index <= vals->last) { mtree_store(mt, index, (index % 2 ? vals->entry2 : vals->entry3), GFP_KERNEL); index++; - usleep(5); + usleep(2); } while (i--) @@ -35098,6 +35098,7 @@ void run_check_rcu_slowread(struct maple_tree *mt, struct rcu_test_struct *vals) MT_BUG_ON(mt, !vals->seen_entry3); MT_BUG_ON(mt, !vals->seen_both); } + static noinline void __init check_rcu_simulated(struct maple_tree *mt) { unsigned long i, nr_entries = 1000; -- 2.50.1
