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673dab7eac
- Fix LLC mis-scheduling bugs (Tim Chen, Lu Wang)
- Fix cache-grouping related scheduling statistics UAF bugs (Tim Chen)
- Skip kernel threads for cache aware scheduling to rubustify the code
(Chen Yu)
- Refresh LLC capacity across CPU hotplug, to fix capacity
underestimation bug (Davi Chaves Azevedo)
- Account PSI IRQ time to the execution context, not the scheduling
context, to fix proxy scheduling accounting bug (Zhan Xusheng)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
- Fix LLC mis-scheduling bugs (Tim Chen, Lu Wang)
- Fix cache-grouping related scheduling statistics UAF bugs (Tim Chen)
- Skip kernel threads for cache aware scheduling to rubustify the code
(Chen Yu)
- Refresh LLC capacity across CPU hotplug, to fix capacity
underestimation bug (Davi Chaves Azevedo)
- Account PSI IRQ time to the execution context, not the scheduling
context, to fix proxy scheduling accounting bug (Zhan Xusheng)
* tag 'sched-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Account PSI IRQ time to the execution context, not the scheduling context
sched/cache: Refresh LLC capacity across CPU hotplug, to fix capacity underestimation bug
sched/cache: Skip kernel threads for cache aware scheduling to rubustify the code
sched/cache: Introduce task_struct->sched_cache_grp to fix UAF
sched/cache: Decouple sched_cache_group from mm to fix UAF
sched/cache: Honor migrate_llc_task semantics in active load balance, to fix LLC mis-scheduling bug
sched/cache: Keep nr_pref_llc_running in the runnable domain, to fix LLC mis-scheduling bug
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