Merge tag 'sched-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "Core scheduler changes:

   - Make migrate_{en,dis}able() inline, to improve performance
     (Menglong Dong)

   - Move STDL_INIT() functions out-of-line (Peter Zijlstra)

   - Unify the SCHED_{SMT,CLUSTER,MC} Kconfig (Peter Zijlstra)

  Fair scheduling:

   - Defer throttling to when tasks exit to user-space, to reduce the
     chance & impact of throttle-preemption with held locks and other
     resources (Aaron Lu, Valentin Schneider)

   - Get rid of sched_domains_curr_level hack for tl->cpumask(), as the
     warning was getting triggered on certain topologies (Peter
     Zijlstra)

  Misc cleanups & fixes:

   - Header cleanups (Menglong Dong)

   - Fix race in push_dl_task() (Harshit Agarwal)"

* tag 'sched-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix some typos in include/linux/preempt.h
  sched: Make migrate_{en,dis}able() inline
  rcu: Replace preempt.h with sched.h in include/linux/rcupdate.h
  arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c
  sched/fair: Do not balance task to a throttled cfs_rq
  sched/fair: Do not special case tasks in throttled hierarchy
  sched/fair: update_cfs_group() for throttled cfs_rqs
  sched/fair: Propagate load for throttled cfs_rq
  sched/fair: Get rid of throttled_lb_pair()
  sched/fair: Task based throttle time accounting
  sched/fair: Switch to task based throttle model
  sched/fair: Implement throttle task work and related helpers
  sched/fair: Add related data structure for task based throttle
  sched: Unify the SCHED_{SMT,CLUSTER,MC} Kconfig
  sched: Move STDL_INIT() functions out-of-line
  sched/fair: Get rid of sched_domains_curr_level hack for tl->cpumask()
  sched/deadline: Fix race in push_dl_task()

3 files changed, 10 insertions, 19 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 22862ce7ec68..7104534f0a0f 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -554,15 +554,11 @@ config NODES_SHIFT
 	depends on NUMA
 	default "1"
 
-config SCHED_SMT
-	def_bool n
-
-config SCHED_MC
-	def_bool n
-
 config SCHED_TOPOLOGY
 	def_bool y
 	prompt "Topology scheduler support"
+	select ARCH_SUPPORTS_SCHED_SMT
+	select ARCH_SUPPORTS_SCHED_MC
 	select SCHED_SMT
 	select SCHED_MC
 	help
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 95ecad9c7d7d..a8915663e917 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -4,6 +4,7 @@
  * This code generates raw asm output which is post-processed to extract
  * and format the required data.
  */
+#define COMPILE_OFFSETS
 
 #include <linux/kbuild.h>
 #include <linux/sched.h>
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 46569b8e47dd..1594c80e9bc4 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -509,33 +509,27 @@ int topology_cpu_init(struct cpu *cpu)
 	return rc;
 }
 
-static const struct cpumask *cpu_thread_mask(int cpu)
-{
-	return &cpu_topology[cpu].thread_mask;
-}
-
-
 const struct cpumask *cpu_coregroup_mask(int cpu)
 {
 	return &cpu_topology[cpu].core_mask;
 }
 
-static const struct cpumask *cpu_book_mask(int cpu)
+static const struct cpumask *tl_book_mask(struct sched_domain_topology_level *tl, int cpu)
 {
 	return &cpu_topology[cpu].book_mask;
 }
 
-static const struct cpumask *cpu_drawer_mask(int cpu)
+static const struct cpumask *tl_drawer_mask(struct sched_domain_topology_level *tl, int cpu)
 {
 	return &cpu_topology[cpu].drawer_mask;
 }
 
 static struct sched_domain_topology_level s390_topology[] = {
-	SDTL_INIT(cpu_thread_mask, cpu_smt_flags, SMT),
-	SDTL_INIT(cpu_coregroup_mask, cpu_core_flags, MC),
-	SDTL_INIT(cpu_book_mask, NULL, BOOK),
-	SDTL_INIT(cpu_drawer_mask, NULL, DRAWER),
-	SDTL_INIT(cpu_cpu_mask, NULL, PKG),
+	SDTL_INIT(tl_smt_mask, cpu_smt_flags, SMT),
+	SDTL_INIT(tl_mc_mask, cpu_core_flags, MC),
+	SDTL_INIT(tl_book_mask, NULL, BOOK),
+	SDTL_INIT(tl_drawer_mask, NULL, DRAWER),
+	SDTL_INIT(tl_pkg_mask, NULL, PKG),
 	{ NULL, },
 };