Merge tag 'sched_ext-for-7.0-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

- Fix starvation of scx_enable() under fair-class saturat

Merge tag 'sched_ext-for-7.0-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

- Fix starvation of scx_enable() under fair-class saturation by
offloading the enable path to an RT kthread

- Fix out-of-bounds access in idle mask initialization on systems with
non-contiguous NUMA node IDs

- Fix a preemption window during scheduler exit and a refcount
underflow in cgroup init error path

- Fix SCX_EFLAG_INITIALIZED being a no-op flag

- Add READ_ONCE() annotations for KCSAN-clean lockless accesses and
replace naked scx_root dereferences with container_of() in kobject
callbacks

- Tooling and selftest fixes: compilation issues with clang 17,
strtoul() misuse, unused options cleanup, and Kconfig sync

* tag 'sched_ext-for-7.0-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: Fix starvation of scx_enable() under fair-class saturation
sched_ext: Remove redundant css_put() in scx_cgroup_init()
selftests/sched_ext: Fix peek_dsq.bpf.c compile error for clang 17
selftests/sched_ext: Add -fms-extensions to bpf build flags
tools/sched_ext: Add -fms-extensions to bpf build flags
sched_ext: Use READ_ONCE() for plain reads of scx_watchdog_timeout
sched_ext: Replace naked scx_root dereferences in kobject callbacks
sched_ext: Use READ_ONCE() for the read side of dsq->nr update
tools/sched_ext: fix strtoul() misuse in scx_hotplug_seq()
sched_ext: Fix SCX_EFLAG_INITIALIZED being a no-op flag
sched_ext: Fix out-of-bounds access in scx_idle_init_masks()
sched_ext: Disable preemption between scx_claim_exit() and kicking helper work
tools/sched_ext: Add Kconfig to sync with upstream
tools/sched_ext: Sync README.md Kconfig with upstream scx
selftests/sched_ext: Remove duplicated unistd.h include in rt_stall.c
tools/sched_ext: scx_sdt: Remove unused '-f' option
tools/sched_ext: scx_central: Remove unused '-p' option
selftests/sched_ext: Fix unused-result warning for read()
selftests/sched_ext: Abort test loop on signal

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tools/sched_ext: Add Kconfig to sync with upstream

Add the missing Kconfig file to tools/sched_ext/ as referenced in
the README.

Ref: https://github.com/sched-ext/scx/blob/main/kernel.config

Signe

tools/sched_ext: Add Kconfig to sync with upstream

Add the missing Kconfig file to tools/sched_ext/ as referenced in
the README.

Ref: https://github.com/sched-ext/scx/blob/main/kernel.config

Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

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