[LTP] [PATCH v1] Fix wqueue09 according with 5.17 kernel updates

[Andrea Cervesato]

Kernel 5.17 introduced many changes in the watch_queue support. In
particular, commit 3b4c0371928c17af03e8397ac842346624017ce6 changes the
behaviour of IOC_WATCH_QUEUE_SET_SIZE and ioctl control over watch_queue
buffer size: now we need to generate more events than before. In
particular, more than the bitmap size to the number of notes.

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.de>
---
 testcases/kernel/watchqueue/wqueue09.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/testcases/kernel/watchqueue/wqueue09.c b/testcases/kernel/watchqueue/wqueue09.c
index 55d567249..86feebf4a 100644
--- a/testcases/kernel/watchqueue/wqueue09.c
+++ b/testcases/kernel/watchqueue/wqueue09.c
@@ -29,14 +29,14 @@ static void saw_data_loss(struct watch_notification *n,
 
 static void run(void)
 {
-	int fd;
+	int fd, i;
 	key_serial_t key;
 
-	fd = wqueue_watch(1, &wqueue_filter);
+	fd = wqueue_watch(32, &wqueue_filter);
 
 	key = wqueue_add_key(fd);
-	keyctl(KEYCTL_UPDATE, key, "b", 1);
-	keyctl(KEYCTL_REVOKE, key);
+	for (i = 0; i < 256; i++)
+		keyctl(KEYCTL_UPDATE, key, "b", 1);
 
 	data_lost = 0;
 	while (!data_lost)
-- 
2.35.1