Re: [PATCH v9 00/13] support "task_isolation" mode for nohz_full

* Chris Metcalf [off-list ref] wrote:

(Adding Mark to cc's)

On 01/12/2016 05:07 AM, Will Deacon wrote:

quoted

On Mon, Jan 11, 2016 at 04:15:50PM -0500, Chris Metcalf wrote:

quoted

Ping!  There has been no substantive feedback to this version of
the patch in the week since I posted it, which optimistically suggests
to me that people may be satisfied with it.  If that's true, Frederic,
I assume this would be pulled into your tree?

I have slightly updated the v9 patch series since this posting:

[...]

- Incorporated Mark Rutland's changes to convert arm64
  assembly to C code instead of using my own version.

Please avoid queuing these patches -- the first is already in the arm64
queue for 4.5 and the second was found to introduce a substantial
performance regression on the syscall entry/exit path. I think Mark had
an updated version to address that, so it would be easier not to have
an old version sitting in some other queue!

I am not formally queueing them anywhere (like linux-next), though
now that you mention it, that's a pretty good idea - I'll talk to Steven
about that, assuming this merge window closes without the task
isolation stuff going in.

NAK. Given the controversy, no way should this stuff go outside the primary trees 
it affects: the scheduler, timer, irq, etc. trees.

We can merge this up in -tip once everyone is happy... but as I said, don't expect 
many replies before and during the merge window.

Thanks,

	Ingo>