Greg KH gregkh@linuxfoundation.org 于2019年3月14日周四 下午6:29写道：
On Wed, Mar 13, 2019 at 11:15:43AM +0100, Jinpu Wang wrote:
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This is nice, but why? We can't take new features into the stable kernel trees. For Android devices (which do want PSI), all of the patches are already backported into the android-common 4.14 branch, right? Or does this differ from that backport somehow?
thanks,
greg k-h
(Resend to reply to all, sorry)
Thanks Greg,
We want the feature for our product. Yeah, I know we have stable-rules, didn't expect the patches to be included, just in case other guys also need PSI.
I'm not aware of android-common did the backport already, could you point me the link?
I checked in https://android.googlesource.com/kernel/common/+/refs/heads/android-4.14*
I didn't find the psi support.
Ah, I was wrong, sorry, it has been submitted to AOSP, but not merged yet. Here's the 4.14 patches queued up and ready to go: https://android-review.googlesource.com/q/topic:%22psi+4.14+backport%22+(sta...)
The 4.9 and 4.19 branches also have them queued up: https://android-review.googlesource.com/q/topic:%22psi+4.9+backport%22+(stat...) https://android-review.googlesource.com/q/topic:%22psi+4.19+backport%22+(sta...)
I talked to the developer this week and he said he was waiting for a few of the remaining patches to be merged upstream first before merging to AOSP to ensure that nothing diverged. Hopefully that should happen in a few weeks or so, after the merge window is open and maintainers reopen their development branches.
thanks,
greg k-h
Thanks Greg,
It's very helpful, I indeed missed some patches. I will check their backport.
Regards,
Jack