Re: [RFC PATCH v3 0/4]: block layer runtime pm

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On Wed, May 23, 2012 at 4:29 PM, Lin Ming <ming.m.lin@xxxxxxxxx> wrote:
> On Wed, May 23, 2012 at 12:10 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
>> On Tue, 22 May 2012, Lin Ming wrote:
>>> Hi,
>>> In August 2010, Jens and Alan discussed about "Runtime PM and the block
>>> layer".
>>> Here are the RFC v3 patches that try to implement the ideas discussed.
>>> Welcome to give it a try.
>> Have you checked to make sure these changes won't break the IDE driver?
>> Maybe it will need to set the REQ_PM flag too.

REQ_PM flag is about runtime PM, but IDE driver does not support
runtime PM at all.

# grep runtime drivers/ide/*.c

This gets empty result.

So I think it won't break the IDE driver.

Lin Ming

> Will check it.
> Another thing need to check is if system suspend/resume works.
>> Alan Stern
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