[RFC PATCH 0/3] block layer runtime pm

From: Lin Ming
Date: Tue May 15 2012 - 04:48:30 EST


Hi,

In August 2010, Jens and Alan discussed about "Runtime PM and the block
layer". http://marc.info/?t=128259108400001&r=1&w=2

Here are the very draft, compile tested only patches that try to
implement the ideas discussed.

I throw it out early to get feedbacks and see if I'm on the right
direction.

Lin Ming (3):
block: add a flag to identify PM request
block: add queue runtime pm callback
block: add queue idle timer

block/blk-core.c | 25 +++++++++++++++++++++++
block/blk-settings.c | 6 +++++
block/elevator.c | 10 +++++++++
drivers/scsi/scsi_lib.c | 25 ++++++++++++++++++++--
drivers/scsi/sd.c | 47 +++++++++++++++++++++++++++++++++++++------
include/linux/blk_types.h | 2 +
include/linux/blkdev.h | 8 +++++++
include/scsi/scsi_device.h | 4 +++
8 files changed, 117 insertions(+), 10 deletions(-)
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