[GIT PULL] scheduler fixes

[Ingo Molnar]

Linus,

Please pull the latest sched/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-urgent-2026-09-27

for you to fetch changes up to a0bb6fac53fa7cf1cadb487b43d4c9276a6b82e3:

Scheduler fixes:

 - 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)

 Thanks,

	Ingo

------------------>
Chen Yu (1):
      sched/cache: Skip kernel threads for cache aware scheduling to rubustify the code

Davi Chaves Azevedo (1):
      sched/cache: Refresh LLC capacity across CPU hotplug, to fix capacity underestimation bug

Lu Wang (1):
      sched/cache: Honor migrate_llc_task semantics in active load balance, to fix LLC mis-scheduling bug

Tim Chen (3):
      sched/cache: Keep nr_pref_llc_running in the runnable domain, to fix LLC mis-scheduling bug
      sched/cache: Decouple sched_cache_group from mm to fix UAF
      sched/cache: Introduce task_struct->sched_cache_grp to fix UAF

Zhan Xusheng (1):
      sched/core: Account PSI IRQ time to the execution context, not the scheduling context


 drivers/base/cacheinfo.c       |  11 +-
 fs/exec.c                      |   1 +
 include/linux/mm_types.h       |  15 +-
 include/linux/sched.h          |  20 +-
 include/linux/sched/topology.h |   4 +-
 kernel/exit.c                  |  28 +--
 kernel/fork.c                  |   2 +
 kernel/sched/core.c            |   2 +-
 kernel/sched/fair.c            | 417 +++++++++++++++++++++++++++++++++--------
 kernel/sched/topology.c        |  22 ++-
 10 files changed, 388 insertions(+), 134 deletions(-)