qemu-kvm/kvm-tests-remove-aio_context_acquire-tests.patch

From 420bf75353286324822c3bbca3b52a7a56ed668c Mon Sep 17 00:00:00 2001
From: Stefan Hajnoczi <stefanha@redhat.com>
Date: Tue, 5 Dec 2023 13:20:00 -0500
Subject: [PATCH 083/101] tests: remove aio_context_acquire() tests

RH-Author: Kevin Wolf <kwolf@redhat.com>
RH-MergeRequest: 214: Remove AioContext lock
RH-Jira: RHEL-15965
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Commit: [14/26] f6421037c1523bc957f3be0f4ad05571ae012dba (kmwolf/centos-qemu-kvm)

The aio_context_acquire() API is being removed. Drop the test case that
calls the API.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231205182011.1976568-4-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 tests/unit/test-aio.c | 67 +------------------------------------------
 1 file changed, 1 insertion(+), 66 deletions(-)

diff --git a/tests/unit/test-aio.c b/tests/unit/test-aio.c
index 337b6e4ea7..e77d86be87 100644
--- a/tests/unit/test-aio.c
+++ b/tests/unit/test-aio.c
@@ -100,76 +100,12 @@ static void event_ready_cb(EventNotifier *e)
 
 /* Tests using aio_*.  */
 
-typedef struct {
-    QemuMutex start_lock;
-    EventNotifier notifier;
-    bool thread_acquired;
-} AcquireTestData;
-
-static void *test_acquire_thread(void *opaque)
-{
-    AcquireTestData *data = opaque;
-
-    /* Wait for other thread to let us start */
-    qemu_mutex_lock(&data->start_lock);
-    qemu_mutex_unlock(&data->start_lock);
-
-    /* event_notifier_set might be called either before or after
-     * the main thread's call to poll().  The test case's outcome
-     * should be the same in either case.
-     */
-    event_notifier_set(&data->notifier);
-    aio_context_acquire(ctx);
-    aio_context_release(ctx);
-
-    data->thread_acquired = true; /* success, we got here */
-
-    return NULL;
-}
-
 static void set_event_notifier(AioContext *nctx, EventNotifier *notifier,
                                EventNotifierHandler *handler)
 {
     aio_set_event_notifier(nctx, notifier, handler, NULL, NULL);
 }
 
-static void dummy_notifier_read(EventNotifier *n)
-{
-    event_notifier_test_and_clear(n);
-}
-
-static void test_acquire(void)
-{
-    QemuThread thread;
-    AcquireTestData data;
-
-    /* Dummy event notifier ensures aio_poll() will block */
-    event_notifier_init(&data.notifier, false);
-    set_event_notifier(ctx, &data.notifier, dummy_notifier_read);
-    g_assert(!aio_poll(ctx, false)); /* consume aio_notify() */
-
-    qemu_mutex_init(&data.start_lock);
-    qemu_mutex_lock(&data.start_lock);
-    data.thread_acquired = false;
-
-    qemu_thread_create(&thread, "test_acquire_thread",
-                       test_acquire_thread,
-                       &data, QEMU_THREAD_JOINABLE);
-
-    /* Block in aio_poll(), let other thread kick us and acquire context */
-    aio_context_acquire(ctx);
-    qemu_mutex_unlock(&data.start_lock); /* let the thread run */
-    g_assert(aio_poll(ctx, true));
-    g_assert(!data.thread_acquired);
-    aio_context_release(ctx);
-
-    qemu_thread_join(&thread);
-    set_event_notifier(ctx, &data.notifier, NULL);
-    event_notifier_cleanup(&data.notifier);
-
-    g_assert(data.thread_acquired);
-}
-
 static void test_bh_schedule(void)
 {
     BHTestData data = { .n = 0 };
@@ -879,7 +815,7 @@ static void test_worker_thread_co_enter(void)
     qemu_thread_get_self(&this_thread);
     co = qemu_coroutine_create(co_check_current_thread, &this_thread);
 
-    qemu_thread_create(&worker_thread, "test_acquire_thread",
+    qemu_thread_create(&worker_thread, "test_aio_co_enter",
                        test_aio_co_enter,
                        co, QEMU_THREAD_JOINABLE);
 
@@ -899,7 +835,6 @@ int main(int argc, char **argv)
     while (g_main_context_iteration(NULL, false));
 
     g_test_init(&argc, &argv, NULL);
-    g_test_add_func("/aio/acquire",                 test_acquire);
     g_test_add_func("/aio/bh/schedule",             test_bh_schedule);
     g_test_add_func("/aio/bh/schedule10",           test_bh_schedule10);
     g_test_add_func("/aio/bh/cancel",               test_bh_cancel);
-- 
2.39.3