Re: [PATCH v3 0/7] Prepare mutable list iterators to cache cursor state

[Andy Shevchenko]

On Mon, Jun 22, 2026 at 02:15:01PM +0800, Kaitao Cheng wrote:
> 在 2026/6/22 13:28, Alexei Starovoitov 写道:
> > On Sun, Jun 21, 2026 at 9:06 PM Kaitao Cheng <kaitao.cheng@xxxxxxxxx> wrote:

...

> >>  block/bfq-iosched.c                 |  17 +-
> >>  block/blk-cgroup.c                  |  12 +-
> >>  block/blk-flush.c                   |   4 +-
> >>  block/blk-iocost.c                  |  18 +-
> >>  block/blk-mq.c                      |   8 +-
> >>  block/blk-throttle.c                |   4 +-
> >>  block/kyber-iosched.c               |   4 +-
> >>  block/partitions/ldm.c              |   8 +-
> >>  block/sed-opal.c                    |   4 +-
> >>  include/linux/list.h                | 269 ++++++++++++++++++++++++----
> >>  include/linux/llist.h               |  81 +++++++--
> >>  init/initramfs.c                    |   5 +-
> >>  io_uring/cancel.c                   |   6 +-
> >>  io_uring/poll.c                     |   3 +-
> >>  io_uring/rw.c                       |   4 +-
> >>  io_uring/timeout.c                  |   8 +-
> >>  io_uring/uring_cmd.c                |   3 +-
> >>  kernel/audit_tree.c                 |   4 +-
> >>  kernel/audit_watch.c                |  16 +-
> >>  kernel/auditfilter.c                |   4 +-
> >>  kernel/auditsc.c                    |   4 +-
> >>  kernel/bpf/arena.c                  |  10 +-
> >>  kernel/bpf/arraymap.c               |   8 +-
> >>  kernel/bpf/bpf_local_storage.c      |   3 +-
> >>  kernel/bpf/bpf_lru_list.c           |  25 ++-
> >>  kernel/bpf/btf.c                    |  18 +-
> >>  kernel/bpf/cgroup.c                 |   7 +-
> >>  kernel/bpf/cpumap.c                 |   4 +-
> >>  kernel/bpf/devmap.c                 |  10 +-
> >>  kernel/bpf/helpers.c                |   8 +-
> >>  kernel/bpf/local_storage.c          |   4 +-
> >>  kernel/bpf/memalloc.c               |  16 +-
> >>  kernel/bpf/offload.c                |   8 +-
> >>  kernel/bpf/states.c                 |   4 +-
> >>  kernel/bpf/stream.c                 |   4 +-
> >>  kernel/bpf/verifier.c               |   6 +-
> >>  kernel/cgroup/cgroup-v1.c           |   4 +-
> >>  kernel/cgroup/cgroup.c              |  54 +++---
> >>  kernel/cgroup/dmem.c                |  12 +-
> >>  kernel/cgroup/rdma.c                |   8 +-
> >>  kernel/events/core.c                |  44 +++--
> >>  kernel/events/uprobes.c             |  12 +-
> >>  kernel/exit.c                       |   8 +-
> >>  kernel/fail_function.c              |   4 +-
> >>  kernel/gcov/clang.c                 |   4 +-
> >>  kernel/irq_work.c                   |   4 +-
> >>  kernel/kexec_core.c                 |   4 +-
> >>  kernel/kprobes.c                    |  16 +-
> >>  kernel/livepatch/core.c             |   4 +-
> >>  kernel/livepatch/core.h             |   4 +-
> >>  kernel/liveupdate/kho_block.c       |   4 +-
> >>  kernel/liveupdate/luo_flb.c         |   4 +-
> >>  kernel/locking/rwsem.c              |   2 +-
> >>  kernel/locking/test-ww_mutex.c      |   2 +-
> >>  kernel/module/main.c                |  11 +-
> >>  kernel/padata.c                     |   4 +-
> >>  kernel/power/snapshot.c             |   8 +-
> >>  kernel/power/wakelock.c             |   4 +-
> >>  kernel/printk/printk.c              |  11 +-
> >>  kernel/ptrace.c                     |   4 +-
> >>  kernel/rcu/rcutorture.c             |   3 +-
> >>  kernel/rcu/tasks.h                  |   9 +-
> >>  kernel/rcu/tree.c                   |   6 +-
> >>  kernel/resource.c                   |   4 +-
> >>  kernel/sched/core.c                 |   4 +-
> >>  kernel/sched/ext.c                  |  22 +--
> >>  kernel/sched/fair.c                 |  28 +--
> >>  kernel/sched/topology.c             |   4 +-
> >>  kernel/sched/wait.c                 |   4 +-
> >>  kernel/seccomp.c                    |   4 +-
> >>  kernel/signal.c                     |  11 +-
> >>  kernel/smp.c                        |   4 +-
> >>  kernel/taskstats.c                  |   8 +-
> >>  kernel/time/clockevents.c           |   6 +-
> >>  kernel/time/clocksource.c           |   4 +-
> >>  kernel/time/posix-cpu-timers.c      |   4 +-
> >>  kernel/time/posix-timers.c          |   3 +-
> >>  kernel/torture.c                    |   3 +-
> >>  kernel/trace/bpf_trace.c            |   4 +-
> >>  kernel/trace/ftrace.c               |  49 +++--
> >>  kernel/trace/ring_buffer.c          |  25 ++-
> >>  kernel/trace/trace.c                |  12 +-
> >>  kernel/trace/trace_dynevent.c       |   6 +-
> >>  kernel/trace/trace_dynevent.h       |   5 +-
> >>  kernel/trace/trace_events.c         |  35 ++--
> >>  kernel/trace/trace_events_filter.c  |   4 +-
> >>  kernel/trace/trace_events_hist.c    |   8 +-
> >>  kernel/trace/trace_events_trigger.c |  17 +-
> >>  kernel/trace/trace_events_user.c    |  16 +-
> >>  kernel/trace/trace_stat.c           |   4 +-
> >>  kernel/user-return-notifier.c       |   3 +-
> >>  kernel/workqueue.c                  |  16 +-
> >>  mm/backing-dev.c                    |   8 +-
> >>  mm/balloon.c                        |   8 +-
> >>  mm/cma.c                            |   4 +-
> >>  mm/compaction.c                     |   4 +-
> >>  mm/damon/core.c                     |   4 +-
> >>  mm/damon/sysfs-schemes.c            |   4 +-
> >>  mm/dmapool.c                        |   4 +-
> >>  mm/huge_memory.c                    |   8 +-
> >>  mm/hugetlb.c                        |  56 +++---
> >>  mm/hugetlb_vmemmap.c                |  16 +-
> >>  mm/khugepaged.c                     |  14 +-
> >>  mm/kmemleak.c                       |   7 +-
> >>  mm/ksm.c                            |  25 +--
> >>  mm/list_lru.c                       |   4 +-
> >>  mm/memcontrol-v1.c                  |   8 +-
> >>  mm/memory-failure.c                 |  12 +-
> >>  mm/memory-tiers.c                   |   4 +-
> >>  mm/migrate.c                        |  23 ++-
> >>  mm/mmu_notifier.c                   |   9 +-
> >>  mm/page_alloc.c                     |   8 +-
> >>  mm/page_reporting.c                 |   2 +-
> >>  mm/percpu.c                         |  11 +-
> >>  mm/pgtable-generic.c                |   4 +-
> >>  mm/rmap.c                           |  10 +-
> >>  mm/shmem.c                          |   9 +-
> >>  mm/slab_common.c                    |  14 +-
> >>  mm/slub.c                           |  33 ++--
> >>  mm/swapfile.c                       |   4 +-
> >>  mm/userfaultfd.c                    |  12 +-
> >>  mm/vmalloc.c                        |  24 +--
> >>  mm/vmscan.c                         |   7 +-
> >>  mm/zsmalloc.c                       |   4 +-
> >>  124 files changed, 875 insertions(+), 681 deletions(-)
> > 
> > Not sure what you were thinking, but this diff stat
> > is not landable.
> 
> [PATCH v3 1/7] and [PATCH v3 2/7] contain the main logic and can
> be merged directly. They are also compatible with the old API.
> [PATCH v3 3/7] through [PATCH v3 7/7] are just simple interface
> replacements and do not change any functional logic. They can be
> left unmerged for now; individual modules can pick them up later
> if needed.
> 
> In v2, Andy Shevchenko mentioned: "If it's done by Linus himself
> during the day when he prepares -rc1, it's fine."

Yes, but you need to get his blessing first to go with this.
Have you communicated with him on this?

> Even so, the
> changes in this patch series are indeed quite large and touch
> almost every subsystem. I have only converted part of them for
> now, so I wanted to send this out first and see what people think.

That's why it's better to provide a script to convert (e.g., coccinelle)
instead of tons of patches.

-- 
With Best Regards,
Andy Shevchenko