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qapi block: Elide redundant has_FOO in generated C

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The has_FOO for pointer-valued FOO are redundant, except for arrays.
They are also a nuisance to work with.  Recent commit "qapi: Start to
elide redundant has_FOO in generated C" provided the means to elide
them step by step.  This is the step for qapi/block*.json.

Said commit explains the transformation in more detail.

There is one instance of the invariant violation mentioned there:
qcow2_signal_corruption() passes false, "" when node_name is an empty
string.  Take care to pass NULL then.

The previous two commits cleaned up two more.

Additionally, helper bdrv_latency_histogram_stats() loses its output
parameters and returns a value instead.

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Hanna Reitz <hreitz@redhat.com>
Cc: qemu-block@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221104160712.3005652-11-armbru@redhat.com>
[Fixes for #ifndef LIBRBD_SUPPORTS_ENCRYPTION and MacOS squashed in]
This commit is contained in:
Markus Armbruster 2022-11-04 17:06:52 +01:00
parent 8461b4d601
commit 54fde4ff06
23 changed files with 173 additions and 281 deletions
Download patch file Download diff file Expand all files Collapse all files

18
block/qcow2.c
View file

@ -3508,7 +3508,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
if (!qcow2_opts->has_preallocation) {
qcow2_opts->preallocation = PREALLOC_MODE_OFF;
}
if (qcow2_opts->has_backing_file &&
if (qcow2_opts->backing_file &&
qcow2_opts->preallocation != PREALLOC_MODE_OFF &&
!qcow2_opts->extended_l2)
{
@ -3517,7 +3517,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
ret = -EINVAL;
goto out;
}
if (qcow2_opts->has_backing_fmt && !qcow2_opts->has_backing_file) {
if (qcow2_opts->has_backing_fmt && !qcow2_opts->backing_file) {
error_setg(errp, "Backing format cannot be used without backing file");
ret = -EINVAL;
goto out;
@ -3558,7 +3558,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
ret = -EINVAL;
goto out;
}
if (qcow2_opts->data_file_raw && qcow2_opts->has_backing_file) {
if (qcow2_opts->data_file_raw && qcow2_opts->backing_file) {
error_setg(errp, "Backing file and data-file-raw cannot be used at "
"the same time");
ret = -EINVAL;
@ -3584,7 +3584,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
* backing file when specifying data_file_raw is an error
* anyway.
*/
assert(!qcow2_opts->has_backing_file);
assert(!qcow2_opts->backing_file);
}
if (qcow2_opts->data_file) {
@ -3752,7 +3752,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
}
/* Want a backing file? There you go. */
if (qcow2_opts->has_backing_file) {
if (qcow2_opts->backing_file) {
const char *backing_format = NULL;
if (qcow2_opts->has_backing_fmt) {
@ -3770,7 +3770,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
}
/* Want encryption? There you go. */
if (qcow2_opts->has_encrypt) {
if (qcow2_opts->encrypt) {
ret = qcow2_set_up_encryption(blk_bs(blk), qcow2_opts->encrypt, errp);
if (ret < 0) {
goto out;
@ -5195,7 +5195,6 @@ static ImageInfoSpecific *qcow2_get_specific_info(BlockDriverState *bs,
.refcount_bits = s->refcount_bits,
.has_bitmaps = !!bitmaps,
.bitmaps = bitmaps,
.has_data_file = !!s->image_data_file,
.data_file = g_strdup(s->image_data_file),
.has_data_file_raw = has_data_file(bs),
.data_file_raw = data_file_is_raw(bs),
@ -5226,7 +5225,6 @@ static ImageInfoSpecific *qcow2_get_specific_info(BlockDriverState *bs,
memset(&encrypt_info->u, 0, sizeof(encrypt_info->u));
qapi_free_QCryptoBlockInfo(encrypt_info);
spec_info->u.qcow2.data->has_encrypt = true;
spec_info->u.qcow2.data->encrypt = qencrypt;
}
@ -5846,7 +5844,7 @@ static int coroutine_fn qcow2_co_amend(BlockDriverState *bs,
BDRVQcow2State *s = bs->opaque;
int ret = 0;
if (qopts->has_encrypt) {
if (qopts->encrypt) {
if (!s->crypto) {
error_setg(errp, "image is not encrypted, can't amend");
return -EOPNOTSUPP;
@ -5911,7 +5909,7 @@ void qcow2_signal_corruption(BlockDriverState *bs, bool fatal, int64_t offset,
node_name = bdrv_get_node_name(bs);
qapi_event_send_block_image_corrupted(bdrv_get_device_name(bs),
*node_name != '\0', node_name,
*node_name ? node_name : NULL,
message, offset >= 0, offset,
size >= 0, size,
fatal);