35 lines
1.4 KiB
Diff
35 lines
1.4 KiB
Diff
Reference: fate#315125:
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Set NOCOW flag to newly created volume by default, to solve performance
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issue on btrfs.
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Signed-off-by: Chunyan Liu <cyliu@suse.com>
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Index: virt-manager-4.1.0/virtinst/storage.py
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===================================================================
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--- virt-manager-4.1.0.orig/virtinst/storage.py
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+++ virt-manager-4.1.0/virtinst/storage.py
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@@ -567,6 +567,11 @@ class StorageVolume(_StorageObject):
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return self._pool_xml.get_disk_type()
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file_type = property(_get_vol_type)
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+ def _nocow_default_cb(self):
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+ return self.conn.check_support(
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+ self.conn.conn_nocow)
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+ nocow = XMLProperty("./target/nocow", is_bool=True)
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+
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##################
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# XML properties #
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Index: virt-manager-4.1.0/virtinst/support.py
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===================================================================
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--- virt-manager-4.1.0.orig/virtinst/support.py
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+++ virt-manager-4.1.0/virtinst/support.py
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@@ -269,6 +269,7 @@ class SupportCache:
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conn_vnc_none_auth = _make(hv_version={"qemu": "2.9.0"})
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conn_device_boot_order = _make(hv_version={"qemu": 0, "test": 0})
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conn_riscv_virt_pci_default = _make(version="5.3.0", hv_version={"qemu": "4.0.0"})
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+ conn_nocow = _make(version="1.2.18", hv_version={"qemu": "2.2.0", "test": 0})
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# We choose qemu 2.11.0 as the first version to target for q35 default.
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# That's not really based on anything except reasonably modern at the
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