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storage: pass struct _virStorageBackendQemuImgInfo by reference

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The struct _virStorageBackendQemuImgInfo is quite large so it is
preferrable to pass it by reference instead of by value. This requires
us to stop modifying the "compat" field.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2019-01-25 11:09:55 +00:00
parent 75d4defe8f
commit 72e8c721eb
1 changed files with 17 additions and 18 deletions
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35
src/storage/storage_util.c
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@ -742,38 +742,40 @@ struct _virStorageBackendQemuImgInfo {
static int
storageBackendCreateQemuImgOpts(virStorageEncryptionInfoDefPtr encinfo,
char **opts,
struct _virStorageBackendQemuImgInfo info)
struct _virStorageBackendQemuImgInfo *info)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (info.backingPath)
if (info->backingPath)
virBufferAsprintf(&buf, "backing_fmt=%s,",
virStorageFileFormatTypeToString(info.backingFormat));
virStorageFileFormatTypeToString(info->backingFormat));
if (encinfo)
virQEMUBuildQemuImgKeySecretOpts(&buf, encinfo, info.secretAlias);
virQEMUBuildQemuImgKeySecretOpts(&buf, encinfo, info->secretAlias);
if (info.preallocate) {
if (info.size_arg > info.allocation)
if (info->preallocate) {
if (info->size_arg > info->allocation)
virBufferAddLit(&buf, "preallocation=metadata,");
else
virBufferAddLit(&buf, "preallocation=falloc,");
}
if (info.nocow)
if (info->nocow)
virBufferAddLit(&buf, "nocow=on,");
if (info.compat)
virBufferAsprintf(&buf, "compat=%s,", info.compat);
if (info->compat)
virBufferAsprintf(&buf, "compat=%s,", info->compat);
else if (info->format == VIR_STORAGE_FILE_QCOW2)
virBufferAddLit(&buf, "compat=0.10,");
if (info.features && info.format == VIR_STORAGE_FILE_QCOW2) {
if (virBitmapIsBitSet(info.features,
if (info->features && info->format == VIR_STORAGE_FILE_QCOW2) {
if (virBitmapIsBitSet(info->features,
VIR_STORAGE_FILE_FEATURE_LAZY_REFCOUNTS)) {
if (STREQ_NULLABLE(info.compat, "0.10")) {
if (STREQ_NULLABLE(info->compat, "0.10")) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("lazy_refcounts not supported with compat"
" level %s"),
info.compat);
info->compat);
goto error;
}
virBufferAddLit(&buf, "lazy_refcounts,");
@ -942,13 +944,10 @@ storageBackendCreateQemuImgSetBacking(virStoragePoolObjPtr pool,
static int
storageBackendCreateQemuImgSetOptions(virCommandPtr cmd,
virStorageEncryptionInfoDefPtr encinfo,
struct _virStorageBackendQemuImgInfo info)
struct _virStorageBackendQemuImgInfo *info)
{
char *opts = NULL;
if (info.format == VIR_STORAGE_FILE_QCOW2 && !info.compat)
info.compat = "0.10";
if (storageBackendCreateQemuImgOpts(encinfo, &opts, info) < 0)
return -1;
if (opts)
@ -1196,7 +1195,7 @@ virStorageBackendCreateQemuImgCmdFromVol(virStoragePoolObjPtr pool,
}
if (convertStep != VIR_STORAGE_VOL_ENCRYPT_CONVERT) {
if (storageBackendCreateQemuImgSetOptions(cmd, encinfo, info) < 0)
if (storageBackendCreateQemuImgSetOptions(cmd, encinfo, &info) < 0)
goto error;
if (info.inputPath)
virCommandAddArg(cmd, info.inputPath);