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from b1e76c3d3a77 Merge tag 'csky-for-linus-5.2-perf-unwind-libdw' of git:// [...] new a2775bbc1d58 kernel/workqueue: Use __printf markup to silence compiler [...] new 8194fe94ab08 kernel/workqueue: Document wq_worker_last_func() argument new 24acfb718225 workqueue: Use normal rcu new 23c970608a09 Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/lin [...] new d6e486ee0ef2 cgroup: remove extra cgroup_migrate_finish() call new 50943f3e136a cgroup: rename freezer.c into legacy_freezer.c new aade7f9efba0 cgroup: implement __cgroup_task_count() helper new 4dcabece4c3a cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock new 76f969e8948d cgroup: cgroup v2 freezer new ff9fb7cb515b kselftests: cgroup: don't fail on cg_kill_all() error in c [...] new 5313bfe425c8 kselftests: cgroup: add freezer controller self-tests new 712e35178754 cgroup: make TRACE_CGROUP_PATH irq-safe new 4c476d8cff48 cgroup: add tracing points for cgroup v2 freezer new afe471ea2d6f cgroup: document cgroup v2 freezer interface new 533307dc20a9 cgroup: Remove unused cgrp variable new cb2c4cd87874 cgroup: prevent spurious transition into non-frozen state new 96b9c592def5 cgroup: get rid of cgroup_freezer_frozen_exit() new 1900da520c9f kernel: cgroup: fix misuse of %x new f2b31bb59824 cgroup: never call do_group_exit() with task->frozen bit set new abde77eb5c66 Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/lin [...]

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Summary of changes: Documentation/admin-guide/cgroup-v2.rst | 27 + include/linux/cgroup-defs.h | 33 + include/linux/cgroup.h | 43 ++ include/linux/sched.h | 2 + include/linux/sched/jobctl.h | 2 + include/trace/events/cgroup.h | 55 ++ kernel/cgroup/Makefile | 4 +- kernel/cgroup/cgroup-internal.h | 8 +- kernel/cgroup/cgroup-v1.c | 16 - kernel/cgroup/cgroup.c | 152 ++++- kernel/cgroup/debug.c | 8 +- kernel/cgroup/freezer.c | 639 +++++++------------ kernel/cgroup/{freezer.c => legacy_freezer.c} | 0 kernel/fork.c | 2 + kernel/signal.c | 66 +- kernel/workqueue.c | 95 +-- tools/testing/selftests/cgroup/.gitignore | 1 + tools/testing/selftests/cgroup/Makefile | 2 + tools/testing/selftests/cgroup/cgroup_util.c | 58 +- tools/testing/selftests/cgroup/cgroup_util.h | 5 + tools/testing/selftests/cgroup/test_freezer.c | 851 ++++++++++++++++++++++++++ 21 files changed, 1584 insertions(+), 485 deletions(-) copy kernel/cgroup/{freezer.c => legacy_freezer.c} (100%) create mode 100644 tools/testing/selftests/cgroup/test_freezer.c