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qemuSnapshotPrepareDiskExternal: Refactor existing file check

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Use the snapshot disk type from the definition now that we validate that
it matches.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2021-06-16 15:43:03 +02:00
parent 919b129603
commit 308aafe289
1 changed files with 4 additions and 3 deletions
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7
src/qemu/qemu_snapshot.c
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@ -607,10 +607,11 @@ qemuSnapshotPrepareDiskExternal(virDomainObj *vm,
return -1;
}
if (!S_ISBLK(st.st_mode) && st.st_size && !reuse) {
if (!reuse &&
snapdisk->src->type == VIR_STORAGE_TYPE_FILE &&
st.st_size > 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("external snapshot file for disk %s already "
"exists and is not a block device: %s"),
_("external snapshot file for disk %s already exists and is not a block device: %s"),
snapdisk->name, snapdisk->src->path);
return -1;
}