Revision 41e794f6
| b/lib/hypervisor/hv_kvm.py | ||
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# |
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# |
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# Copyright (C) 2008, 2009, 2010 Google Inc. |
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# Copyright (C) 2008, 2009, 2010, 2011 Google Inc.
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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if_val = ',if=%s' % disk_type |
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# Cache mode |
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disk_cache = hvp[constants.HV_DISK_CACHE] |
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if disk_cache != constants.HT_CACHE_DEFAULT: |
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if instance.disk_template in constants.DTS_EXT_MIRROR: |
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if disk_cache != "none": |
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# TODO: make this a hard error, instead of a silent overwrite |
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logging.warning("KVM: overriding disk_cache setting '%s' with 'none'"
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" to prevent shared storage corruption on migration", |
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disk_cache) |
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cache_val = ",cache=none" |
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elif disk_cache != constants.HT_CACHE_DEFAULT: |
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cache_val = ",cache=%s" % disk_cache |
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else: |
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cache_val = "" |
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