Re: User initiated hotplug and kernel initiated hotplug - where is the synchronization?

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On Wednesday, January 15, 2014 09:43:58 AM Rajat Jain wrote:
> Hello,

Hi,

> I have this doubt lingering on, and I'd appreciate if some one could throw light on this:
> 
> The kernel hotplug driver pciehp can initiate hotplug based on what it senses from the HW (button press etc).
> 
> The user space can also initiate the same operations by using "rescan" or "remove" attributes in sysfs.
> 
> My questions:
> 
> 1) Is it safe to mix the above two?

Not right now, but with these patches applied:

https://patchwork.kernel.org/patch/3466551/
https://patchwork.kernel.org/patch/3466581/
https://patchwork.kernel.org/patch/3466601/
https://patchwork.kernel.org/patch/3466591/
https://patchwork.kernel.org/patch/3466631/
https://patchwork.kernel.org/patch/3466641/
https://patchwork.kernel.org/patch/3466651/
https://patchwork.kernel.org/patch/3491811/
https://patchwork.kernel.org/patch/3466491/
https://patchwork.kernel.org/patch/3473341/

it should be.

Thanks!

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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