On Wed, Oct 25, 2017 at 10:45:48AM +0200, Ingo Molnar wrote:
>
> * Paul E. McKenney <[email protected]> wrote:
>
> > Hello, Ingo,
> >
> > This series is a first step towards making the core kernel no longer
> > need to consider DEC Alpha as a special case. This is accomplished
> > by two sets of patches, followed by a Coccinelle script:
> >
> > 1. Patches 1/19 through 15/19 in the following patches, which
> > change non-Coccinelle-susceptible instances of ACCESS_ONCE()
> > to either READ_ONCE() or WRITE_ONCE(), as appropriate. Most of
> > these patches are courtesy of Mark Rutland.
> >
> > 2. Patches 16/19 through 18/19 in the following patches, which
> > add smp_read_barrier_depends() to READ_ONCE() and to Alpha's
> > value-returning _release and _relaxed atomic read-modify-write
> > operations, while also removing lockless_dereference() in favor
> > of the modified READ_ONCE().
> >
> > 3. A patch generated by Coccinelle (script in commit log) that
> > converts ACCESS_ONCE() to either READ_ONCE() or WRITE_ONCE(),
> > as appropriate. Of course, this patch should not be applied
> > as-is to mainline, instead, the Coccinelle script should be
> > re-run in order to account for any changes between now and
> > the time of merging into mainline.
> >
> > A later series (most likely targeted to v4.16) will remove instances of
> > smp_read_barrier_depends() that are made redundant by this series, that
> > is to say, almost all of them.
> >
> > These changes are available in the git repository at:
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> > rcu/alpha-cocci
> >
> > for you to fetch changes up to d19fa5187a69bd7685e9c7452ce9e339b1b079fc:
> >
> > COCCINELLE: treewide: kill off ACCESS_ONCE() (2017-10-21 12:52:09 -0700)
> >
> > ----------------------------------------------------------------
> > Mark Rutland (14):
> > dm integrity: Kill off ACCESS_ONCE()
> > EDAC, altera: Kill off ACCESS_ONCE()
> > firmware/ivc: Kill off ACCESS_ONCE()
> > fs: dcache: Kill off ACCESS_ONCE()
> > fs: ncpfs: Kill off ACCESS_ONCE()
> > media: dvb_ringbuffer: Kill off ACCESS_ONCE()
> > net: netlink/netfilter: Kill off ACCESS_ONCE()
> > net/ipv4/tcp_input.c: Kill off ACCESS_ONCE()
> > net: average: Kill off ACCESS_ONCE()
> > samples: mic/mpssd/mpssd.c: Kill off ACCESS_ONCE()
> > selftests/powerpc: Kill off ACCESS_ONCE()
> > workqueue: Kill off ACCESS_ONCE()
> > rcutorture: formal: Prepare for ACCESS_ONCE() removal
> > COCCINELLE: treewide: kill off ACCESS_ONCE()
>
> None of the patches from Mark include your Signed-off-by - I'll add them, let
> me
> know if that's not OK. I suppose this happened because you rebased his tree?
I did pull his tree rather than applying from email, and no problem
adding my Signed-off-by.
Thanx, Paul
