[libvirt] [PATCH 1/2] qemu: block: Don't lookup node names if they are already known

Move the check that skips node name detection if they are already present earlier so that the hash table lookup is skipped. --- src/qemu/qemu_block.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_block.c b/src/qemu/qemu_block.c index 3437302dd..a3da80f88 100644 --- a/src/qemu/qemu_block.c +++ b/src/qemu/qemu_block.c @@ -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) || -- 2.14.1