* Paul E. McKenney <[email protected]> wrote: > 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, [...]
You might have pulled it, but the commits in rcu/alpha-cocci suggest that the tree was also rebased: commit d19fa5187a69bd7685e9c7452ce9e339b1b079fc Author: Mark Rutland <[email protected]> AuthorDate: Thu Oct 19 10:42:03 2017 -0700 Commit: Paul E. McKenney <[email protected]> CommitDate: Sat Oct 21 12:52:09 2017 -0700 COCCINELLE: treewide: kill off ACCESS_ONCE() Note the "Commit:" field which says the commit was created by you, not by Mark. Thanks, Ingo
