[PATCH v2 0/3] libata: expose port hotplug information to userspace

[Matthew Garrett]

Default ALPM policy should be influenced by whether or not it's plausible
for a port to be hotplugged. AHCI provides information on this, but it's
not sufficiently reliable to allow it to be used in-kernel. Exposing this
to userspace allows a more informed policy decision to be made.

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