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Matthew Wilcox authored
If we are to cope with multiple domains with clashing PCI bus numbers, we must refrain from creating two directories of the same name in /proc/bus/pci. This is one solution to the problem; busses with a non-zero domain number get it prepended. Alternative solutions include cowardly refusing to create non-domain-zero bus directories, refusing to create directories with clashing names, and sticking our heads in the sand and pretending the problem doesn't exist.
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