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The new 'VIR_MIGRATE_PARAM_MIGRATE_DISKS_DETECT_ZEROES' migration parameter allows users of migration to pass in a list of disks where zero-detection (which avoids transferring the zeroed-blocks) should be enabled for the migration connection. This comes at the cost of extra CPU cycles needed to check each block if it's all-zero. This is useful for storage backends where information about the allocation state of a block is not available and thus without this the image would become fully allocated on the destination. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com> |
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meson.build |