[PATCHSET] hotplug polling, take 5

[Tejun Heo <htejun@gmail.com>]

Hello, all.

This is the fifth take of hotplug polling patchset.  This take doesn't
contain any real change than rebasing over the current upstream[U].
PMP patchset will be posted soon on top of this patchset and I wanted
to avoid confusion by posting patchsets in order.

As the name implies, this patchset implements hotplug by polling.
hp-poll is used to

* Monitor ports EH gave up.  When EH gives up on a port, it freezes
  the port to protect the rest of the system from it.  The user used
  to have to issue manual scan to retry the port.  hp-poll can monitor
  such port and retry it when hotplug event is detected.  This is also
  used by PMP support.

* Support hotplug on controllers which can report hotplug conditions
  but cannot raise interrupt.

Changes from the last take[L] are.

* updated to the current upstream

This patchset is also available in the following git tree.

  http://htj.dyndns.org/git/?p=libata-tj.git;a=shortlog;h=hp-poll
  git://htj.dyndns.org/libata-tj hp-poll

Thanks.

--
tejun

[U] da54f5fe54c7d75e2db7d17961fb36a8c28a8501
[L] http://article.gmane.org/gmane.linux.ide/13418