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qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF

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Now that we can safely call QOBJECT() on QObject * as well as its
subtypes, we can have macros qobject_ref() / qobject_unref() that work
everywhere instead of having to use QINCREF() / QDECREF() for QObject
and qobject_incref() / qobject_decref() for its subtypes.

The replacement is mechanical, except I broke a long line, and added a
cast in monitor_qmp_cleanup_req_queue_locked().  Unlike
qobject_decref(), qobject_unref() doesn't accept void *.

Note that the new macros evaluate their argument exactly once, thus no
need to shout them.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180419150145.24795-4-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Rebased, semantic conflict resolved, commit message improved]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Marc-André Lureau 2018-04-19 17:01:43 +02:00 • committed by Markus Armbruster
parent 3d3eacaecc
commit cb3e7f08ae
94 changed files with 609 additions and 613 deletions
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8
block/qcow2.c
View file

@ -1063,7 +1063,7 @@ static int qcow2_update_options_prepare(BlockDriverState *bs,
ret = 0;
fail:
QDECREF(encryptopts);
qobject_unref(encryptopts);
qemu_opts_del(opts);
opts = NULL;
return ret;
@ -2183,7 +2183,7 @@ static void coroutine_fn qcow2_co_invalidate_cache(BlockDriverState *bs,
qemu_co_mutex_lock(&s->lock);
ret = qcow2_do_open(bs, options, flags, &local_err);
qemu_co_mutex_unlock(&s->lock);
QDECREF(options);
qobject_unref(options);
if (local_err) {
error_propagate(errp, local_err);
error_prepend(errp, "Could not reopen qcow2 layer: ");
@ -3139,7 +3139,7 @@ static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opt
/* Now get the QAPI type BlockdevCreateOptions */
qobj = qdict_crumple(qdict, errp);
QDECREF(qdict);
qobject_unref(qdict);
qdict = qobject_to(QDict, qobj);
if (qdict == NULL) {
ret = -EINVAL;
@ -3168,7 +3168,7 @@ static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opt
ret = 0;
finish:
QDECREF(qdict);
qobject_unref(qdict);
bdrv_unref(bs);
qapi_free_BlockdevCreateOptions(create_options);
return ret;