* Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> 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? Thanks, Ingo
