Re: [RFC GIT PULL rcu/next] RCU/hotplug fix

[Ingo Molnar]

* Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> wrote:

> Hello, Ingo,
> 
> This pull request is for an RCU change that permits waiting for grace
> periods started by CPUs late in the process of going offline.  Lack of
> this capability is causing failures:
> 
> http://lkml.kernel.org/r/db9c91f6-1b17-6136-84f0-03c3c2581ab4@xxxxxxxxxxxxxx
> 
> Although these failures predate v4.12, and thus are in some sense not
> regressions, it would be good for them to be fixed sooner rather than
> later, hence this RFC pull request.
> 
> This commit was posted to LKML:
> 
> 	http://lkml.kernel.org/r/1500933116-11642-2-git-send-email-paulmck@xxxxxxxxxxxxxxxxxx
> 
> This commit has been exposed to 0day test robot and -next testing
> and is available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git for-mingo
> 
> for you to fetch changes up to a58163d8ca2c8d288ee9f95989712f98473a5ac2:
> 
>   rcu: Migrate callbacks earlier in the CPU-offline timeline (2017-07-25 13:03:43 -0700)
> 
> ----------------------------------------------------------------
> Paul E. McKenney (1):
>       rcu: Migrate callbacks earlier in the CPU-offline timeline
> 
>  include/linux/rcupdate.h |   1 +
>  kernel/cpu.c             |   1 +
>  kernel/rcu/tree.c        | 209 +++++++++++++++++++++++++----------------------
>  3 files changed, 115 insertions(+), 96 deletions(-)

Pulled, thanks Paul!

	Ingo