[PATCHSET 10/11] prep for PM support

[Tejun Heo <htejun@gmail.com>]

Howdy,

This is part of patchset series described in [T].

This is the first take of prep-for-PM-support patchset.  This patchset
contains 7 patches and implements various stuff needed for PM.

One of important updates is the addition of ops->qc_defer().  This is
to let LLDDs determine which commands they can accept at the moment.
This is necessary for PM and controllers have wildely different
capabilities regarding how many/different commands can be issued to
how many devices concurrently.  More info is in the message [T].

This patchset is against

  upstream (acc696d93dcf993dec123d69d599979e1456ffec)
  + [1] prep-for-new-EH patchset
  + [2] new-EH-framework patchset, take 3
  + [3] new-EH-implementation patchset, take 3
  + [4] merge-irq-pio patchset
  + [5] add-NCQ-support patchset, take 3
  + [6] prep-for-hotplug support, take 2
  + [7] prep-LLDDs-for-hotplug-support, take 1
  + [8] add-hotplug-support, take 2
  + [9] implement-ata_link, take 1

--
tejun

[T] http://article.gmane.org/gmane.linux.ide/9957
[1] http://article.gmane.org/gmane.linux.ide/9959
[2] http://article.gmane.org/gmane.linux.ide/9984
[3] http://article.gmane.org/gmane.linux.ide/9995
[4] http://article.gmane.org/gmane.linux.ide/10005
[5] http://article.gmane.org/gmane.linux.ide/10011
[6] http://article.gmane.org/gmane.linux.ide/10028
[7] http://article.gmane.org/gmane.linux.ide/10063
[8] http://article.gmane.org/gmane.linux.ide/10073
[9] http://article.gmane.org/gmane.linux.ide/10106