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qemu: block: Don't lookup node names if they are already known

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Move the check that skips node name detection if they are already
present earlier so that the hash table lookup is skipped.
This commit is contained in:
Peter Krempa 2017-09-25 11:39:55 +02:00
parent 32d6c7386d
commit 8b2fd3b148
1 changed files with 3 additions and 3 deletions
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6
src/qemu/qemu_block.c
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@ -272,13 +272,13 @@ qemuBlockDiskDetectNodes(virDomainDiskDefPtr disk,
qemuBlockNodeNameBackingChainDataPtr entry = NULL;
virStorageSourcePtr src = disk->src;
if (!(entry = virHashLookup(disktable, disk->info.alias)))
return 0;
/* don't attempt the detection if the top level already has node names */
if (src->nodeformat || src->nodestorage)
return 0;
if (!(entry = virHashLookup(disktable, disk->info.alias)))
return 0;
while (src && entry) {
if (src->nodeformat || src->nodestorage) {
if (STRNEQ_NULLABLE(src->nodeformat, entry->nodeformat) ||