[PATCH 04/62] idr test suite: Fix ida_test_random()

Matthew Wilcox
2017-11-22T21:07:54Z

The test was checking the wrong errno; ida_get_new_above() returns
EAGAIN, not ENOMEM on memory allocation failure. Double the number of
threads to increase the chance that we actually exercise this path
during the test suite (it was a bit sporadic before).

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
---
tools/testing/radix-tree/idr-test.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c
index 30cd0b296f1a..193450b29bf0 100644
--- a/tools/testing/radix-tree/idr-test.c
+++ b/tools/testing/radix-tree/idr-test.c
@@ -380,7 +380,7 @@ void ida_check_random(void)
do {
ida_pre_get(&ida, GFP_KERNEL);
err = ida_get_new_above(&ida, bit, &id);
- } while (err == -ENOMEM);
+ } while (err == -EAGAIN);
assert(!err);
assert(id == bit);
}
@@ -489,7 +489,7 @@ static void *ida_random_fn(void *arg)

void ida_thread_tests(void)
{
- pthread_t threads[10];
+ pthread_t threads[20];
int i;

for (i = 0; i < ARRAY_SIZE(threads); i++)
--
2.15.0