Re: [GIT PULL tip/core/rcu] RCU, LKMM, and KCSAN commits for v5.12

From: Paul E. McKenney
Date: Fri Feb 12 2021 - 10:07:53 EST


On Fri, Feb 12, 2021 at 01:31:09PM +0100, Ingo Molnar wrote:
>
> * Paul E. McKenney <paulmck@xxxxxxxxxx> wrote:
>
> > Hello, Ingo!
> >
> > This pull request contains changes for RCU, KCSAN, LKMM, and nolibc.
> > You can pull the entire group using branch for-mingo. Or, if you prefer,
> > you can pull them separately, using for-mingo-rcu to pull the RCU changes,
> > for-mingo-kcsan to pull the KCSAN changes, for-mingo-lkmm to pull the
> > LKMM changes, and for-mingo-nolibc to pull the noclib changes.
> >
> > The changes are as follows:
> >
> > 1. RCU updates (for-mingo-rcu):
>
> > 4. Fixes to nolibc that allows it to run once again on ARMv8.
> > https://lore.kernel.org/lkml/20210121072031.23777-1-w@xxxxxx/
>
> Pulled these two into tip:core/rcu - as nolibc's main (only?) usecase
> within the kernel is torture-testing.
>
> > 2. Kernel concurrency sanitizer (KCSAN) updates from Marco Elver.
> > https://lore.kernel.org/lkml/20210106173323.GA23292@paulmck-ThinkPad-P72/
>
> > 3. Linux-kernel memory model (LKMM) updates.
> > https://lore.kernel.org/lkml/20210106173548.GA23664@paulmck-ThinkPad-P72/
>
> Pulled these two into tip:locking/core.

Thank you, Ingo! In the future, I will group nolibc with RCU. But there
has to be something other than RCU that needs it. I will take a look. ;-)

Thanx, Paul