aio: convert from RFifoLock to QemuRecMutex

It is simpler and a bit faster, and QEMU does not need the contention
callbacks (and thus the fairness) anymore.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1477565348-5458-21-git-send-email-pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>

1 files changed, 0 insertions, 91 deletions

diff --git a/tests/test-rfifolock.c b/tests/test-rfifolock.c
deleted file mode 100644
index 471a81114d..0000000000
--- a/tests/test-rfifolock.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * RFifoLock tests
- *
- * Copyright Red Hat, Inc. 2013
- *
- * Authors:
- *  Stefan Hajnoczi    <stefanha@redhat.com>
- *
- * This work is licensed under the terms of the GNU LGPL, version 2 or later.
- * See the COPYING.LIB file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "qemu/rfifolock.h"
-
-static void test_nesting(void)
-{
-    RFifoLock lock;
-
-    /* Trivial test, ensure the lock is recursive */
-    rfifolock_init(&lock, NULL, NULL);
-    rfifolock_lock(&lock);
-    rfifolock_lock(&lock);
-    rfifolock_lock(&lock);
-    rfifolock_unlock(&lock);
-    rfifolock_unlock(&lock);
-    rfifolock_unlock(&lock);
-    rfifolock_destroy(&lock);
-}
-
-typedef struct {
-    RFifoLock lock;
-    int fd[2];
-} CallbackTestData;
-
-static void rfifolock_cb(void *opaque)
-{
-    CallbackTestData *data = opaque;
-    int ret;
-    char c = 0;
-
-    ret = write(data->fd[1], &c, sizeof(c));
-    g_assert(ret == 1);
-}
-
-static void *callback_thread(void *opaque)
-{
-    CallbackTestData *data = opaque;
-
-    /* The other thread holds the lock so the contention callback will be
-     * invoked...
-     */
-    rfifolock_lock(&data->lock);
-    rfifolock_unlock(&data->lock);
-    return NULL;
-}
-
-static void test_callback(void)
-{
-    CallbackTestData data;
-    QemuThread thread;
-    int ret;
-    char c;
-
-    rfifolock_init(&data.lock, rfifolock_cb, &data);
-    ret = qemu_pipe(data.fd);
-    g_assert(ret == 0);
-
-    /* Hold lock but allow the callback to kick us by writing to the pipe */
-    rfifolock_lock(&data.lock);
-    qemu_thread_create(&thread, "callback_thread",
-                       callback_thread, &data, QEMU_THREAD_JOINABLE);
-    ret = read(data.fd[0], &c, sizeof(c));
-    g_assert(ret == 1);
-    rfifolock_unlock(&data.lock);
-    /* If we got here then the callback was invoked, as expected */
-
-    qemu_thread_join(&thread);
-    close(data.fd[0]);
-    close(data.fd[1]);
-    rfifolock_destroy(&data.lock);
-}
-
-int main(int argc, char **argv)
-{
-    g_test_init(&argc, &argv, NULL);
-    g_test_add_func("/nesting", test_nesting);
-    g_test_add_func("/callback", test_callback);
-    return g_test_run();
-}