diff --git a/arch/arm/include/asm/mmu_context.h b/arch/arm/include/asm/mmu_context.h --- a/arch/arm/include/asm/mmu_context.h +++ b/arch/arm/include/asm/mmu_context.h @@ -80,7 +80,7 @@ static inline void check_and_switch_context(struct mm_struct *mm, #ifndef MODULE #define finish_arch_post_lock_switch \ finish_arch_post_lock_switch -static inline void finish_arch_post_lock_switch(void) +static __always_inline void finish_arch_post_lock_switch(void) { struct mm_struct *mm = current->mm; diff --git a/arch/riscv/include/asm/sync_core.h b/arch/riscv/include/asm/sync_core.h --- a/arch/riscv/include/asm/sync_core.h +++ b/arch/riscv/include/asm/sync_core.h @@ -6,7 +6,7 @@ * RISC-V implements return to user-space through an xRET instruction, * which is not core serializing. */ -static inline void sync_core_before_usermode(void) +static __always_inline void sync_core_before_usermode(void) { asm volatile ("fence.i" ::: "memory"); } diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -93,7 +93,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, } #define finish_arch_post_lock_switch finish_arch_post_lock_switch -static inline void finish_arch_post_lock_switch(void) +static __always_inline void finish_arch_post_lock_switch(void) { struct task_struct *tsk = current; struct mm_struct *mm = tsk->mm; diff --git a/arch/sparc/include/asm/mmu_context_64.h b/arch/sparc/include/asm/mmu_context_64.h --- a/arch/sparc/include/asm/mmu_context_64.h +++ b/arch/sparc/include/asm/mmu_context_64.h @@ -160,7 +160,7 @@ static inline void arch_start_context_switch(struct task_struct *prev) } #define finish_arch_post_lock_switch finish_arch_post_lock_switch -static inline void finish_arch_post_lock_switch(void) +static __always_inline void finish_arch_post_lock_switch(void) { /* Restore the state of MCDPER register for the new process * just switched to. diff --git a/arch/x86/include/asm/sync_core.h b/arch/x86/include/asm/sync_core.h --- a/arch/x86/include/asm/sync_core.h +++ b/arch/x86/include/asm/sync_core.h @@ -93,7 +93,7 @@ static __always_inline void sync_core(void) * to user-mode. x86 implements return to user-space through sysexit, * sysrel, and sysretq, which are not core serializing. */ -static inline void sync_core_before_usermode(void) +static __always_inline void sync_core_before_usermode(void) { /* With PTI, we unconditionally serialize before running user code. */ if (static_cpu_has(X86_FEATURE_PTI)) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1632,7 +1632,7 @@ static inline void perf_event_task_migrate(struct task_struct *task) task->sched_migrated = 1; } -static inline void perf_event_task_sched_in(struct task_struct *prev, +static __always_inline void perf_event_task_sched_in(struct task_struct *prev, struct task_struct *task) { if (static_branch_unlikely(&perf_sched_events)) diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h --- a/include/linux/sched/mm.h +++ b/include/linux/sched/mm.h @@ -32,7 +32,7 @@ extern struct mm_struct *mm_alloc(void); * See also for an in-depth explanation * of &mm_struct.mm_count vs &mm_struct.mm_users. */ -static inline void mmgrab(struct mm_struct *mm) +static __always_inline void mmgrab(struct mm_struct *mm) { atomic_inc(&mm->mm_count); } @@ -44,7 +44,7 @@ static inline void smp_mb__after_mmgrab(void) extern void __mmdrop(struct mm_struct *mm); -static inline void mmdrop(struct mm_struct *mm) +static __always_inline void mmdrop(struct mm_struct *mm) { /* * The implicit full barrier implied by atomic_dec_and_test() is @@ -71,27 +71,27 @@ static inline void __mmdrop_delayed(struct rcu_head *rhp) * Invoked from finish_task_switch(). Delegates the heavy lifting on RT * kernels via RCU. */ -static inline void mmdrop_sched(struct mm_struct *mm) +static __always_inline void mmdrop_sched(struct mm_struct *mm) { /* Provides a full memory barrier. See mmdrop() */ if (atomic_dec_and_test(&mm->mm_count)) call_rcu(&mm->delayed_drop, __mmdrop_delayed); } #else -static inline void mmdrop_sched(struct mm_struct *mm) +static __always_inline void mmdrop_sched(struct mm_struct *mm) { mmdrop(mm); } #endif /* Helpers for lazy TLB mm refcounting */ -static inline void mmgrab_lazy_tlb(struct mm_struct *mm) +static __always_inline void mmgrab_lazy_tlb(struct mm_struct *mm) { if (IS_ENABLED(CONFIG_MMU_LAZY_TLB_REFCOUNT)) mmgrab(mm); } -static inline void mmdrop_lazy_tlb(struct mm_struct *mm) +static __always_inline void mmdrop_lazy_tlb(struct mm_struct *mm) { if (IS_ENABLED(CONFIG_MMU_LAZY_TLB_REFCOUNT)) { mmdrop(mm); @@ -104,7 +104,7 @@ static inline void mmdrop_lazy_tlb(struct mm_struct *mm) } } -static inline void mmdrop_lazy_tlb_sched(struct mm_struct *mm) +static __always_inline void mmdrop_lazy_tlb_sched(struct mm_struct *mm) { if (IS_ENABLED(CONFIG_MMU_LAZY_TLB_REFCOUNT)) mmdrop_sched(mm); @@ -128,12 +128,12 @@ static inline void mmdrop_lazy_tlb_sched(struct mm_struct *mm) * See also for an in-depth explanation * of &mm_struct.mm_count vs &mm_struct.mm_users. */ -static inline void mmget(struct mm_struct *mm) +static __always_inline void mmget(struct mm_struct *mm) { atomic_inc(&mm->mm_users); } -static inline bool mmget_not_zero(struct mm_struct *mm) +static __always_inline bool mmget_not_zero(struct mm_struct *mm) { return atomic_inc_not_zero(&mm->mm_users); } @@ -532,7 +532,7 @@ enum { #include #endif -static inline void membarrier_mm_sync_core_before_usermode(struct mm_struct *mm) +static __always_inline void membarrier_mm_sync_core_before_usermode(struct mm_struct *mm) { /* * The atomic_read() below prevents CSE. The following should diff --git a/include/linux/tick.h b/include/linux/tick.h --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -175,7 +175,7 @@ extern cpumask_var_t tick_nohz_full_mask; #ifdef CONFIG_NO_HZ_FULL extern bool tick_nohz_full_running; -static inline bool tick_nohz_full_enabled(void) +static __always_inline bool tick_nohz_full_enabled(void) { if (!context_tracking_enabled()) return false; @@ -299,7 +299,7 @@ static inline void __tick_nohz_task_switch(void) { } static inline void tick_nohz_full_setup(cpumask_var_t cpumask) { } #endif -static inline void tick_nohz_task_switch(void) +static __always_inline void tick_nohz_task_switch(void) { if (tick_nohz_full_enabled()) __tick_nohz_task_switch(); diff --git a/include/linux/vtime.h b/include/linux/vtime.h --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -89,24 +89,24 @@ static __always_inline void vtime_account_guest_exit(void) * For now vtime state is tied to context tracking. We might want to decouple * those later if necessary. */ -static inline bool vtime_accounting_enabled(void) +static __always_inline bool vtime_accounting_enabled(void) { return context_tracking_enabled(); } -static inline bool vtime_accounting_enabled_cpu(int cpu) +static __always_inline bool vtime_accounting_enabled_cpu(int cpu) { return vtime_generic_enabled_cpu(cpu); } -static inline bool vtime_accounting_enabled_this_cpu(void) +static __always_inline bool vtime_accounting_enabled_this_cpu(void) { return vtime_generic_enabled_this_cpu(); } extern void vtime_task_switch_generic(struct task_struct *prev); -static inline void vtime_task_switch(struct task_struct *prev) +static __always_inline void vtime_task_switch(struct task_struct *prev) { if (vtime_accounting_enabled_this_cpu()) vtime_task_switch_generic(prev); diff --git a/kernel/sched/core.c b/kernel/sched/core.c --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5099,7 +5099,7 @@ static inline void prepare_task(struct task_struct *next) WRITE_ONCE(next->on_cpu, 1); } -static inline void finish_task(struct task_struct *prev) +static __always_inline void finish_task(struct task_struct *prev) { /* * This must be the very last reference to @prev from this CPU. After @@ -5143,7 +5143,7 @@ static void zap_balance_callbacks(struct rq *rq) rq->balance_callback = found ? &balance_push_callback : NULL; } -static void do_balance_callbacks(struct rq *rq, struct balance_callback *head) +static __always_inline void do_balance_callbacks(struct rq *rq, struct balance_callback *head) { void (*func)(struct rq *rq); struct balance_callback *next; @@ -5178,7 +5178,7 @@ struct balance_callback balance_push_callback = { .func = balance_push, }; -static inline struct balance_callback * +static __always_inline struct balance_callback * __splice_balance_callbacks(struct rq *rq, bool split) { struct balance_callback *head = rq->balance_callback; @@ -5252,7 +5252,7 @@ prepare_lock_switch(struct rq *rq, struct task_struct *next, struct rq_flags *rf __acquire(__rq_lockp(this_rq())); } -static inline void finish_lock_switch(struct rq *rq) +static __always_inline void finish_lock_switch(struct rq *rq) __releases(__rq_lockp(rq)) { /* @@ -5286,7 +5286,7 @@ static inline void kmap_local_sched_out(void) #endif } -static inline void kmap_local_sched_in(void) +static __always_inline void kmap_local_sched_in(void) { #ifdef CONFIG_KMAP_LOCAL if (unlikely(current->kmap_ctrl.idx)) @@ -5340,7 +5340,7 @@ prepare_task_switch(struct rq *rq, struct task_struct *prev, * past. 'prev == current' is still correct but we need to recalculate this_rq * because prev may have moved to another CPU. */ -static struct rq *finish_task_switch(struct task_struct *prev) +static __always_inline struct rq *finish_task_switch(struct task_struct *prev) __releases(__rq_lockp(this_rq())) { struct rq *rq = this_rq(); diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1460,12 +1460,12 @@ static inline struct cpumask *sched_group_span(struct sched_group *sg); DECLARE_STATIC_KEY_FALSE(__sched_core_enabled); -static inline bool sched_core_enabled(struct rq *rq) +static __always_inline bool sched_core_enabled(struct rq *rq) { return static_branch_unlikely(&__sched_core_enabled) && rq->core_enabled; } -static inline bool sched_core_disabled(void) +static __always_inline bool sched_core_disabled(void) { return !static_branch_unlikely(&__sched_core_enabled); } @@ -1474,7 +1474,7 @@ static inline bool sched_core_disabled(void) * Be careful with this function; not for general use. The return value isn't * stable unless you actually hold a relevant rq->__lock. */ -static inline raw_spinlock_t *rq_lockp(struct rq *rq) +static __always_inline raw_spinlock_t *rq_lockp(struct rq *rq) { if (sched_core_enabled(rq)) return &rq->core->__lock; @@ -1482,7 +1482,7 @@ static inline raw_spinlock_t *rq_lockp(struct rq *rq) return &rq->__lock; } -static inline raw_spinlock_t *__rq_lockp(struct rq *rq) +static __always_inline raw_spinlock_t *__rq_lockp(struct rq *rq) __returns_ctx_lock(rq_lockp(rq)) /* alias them */ { if (rq->core_enabled) @@ -1585,12 +1585,12 @@ static inline bool sched_core_disabled(void) return true; } -static inline raw_spinlock_t *rq_lockp(struct rq *rq) +static __always_inline raw_spinlock_t *rq_lockp(struct rq *rq) { return &rq->__lock; } -static inline raw_spinlock_t *__rq_lockp(struct rq *rq) +static __always_inline raw_spinlock_t *__rq_lockp(struct rq *rq) __returns_ctx_lock(rq_lockp(rq)) /* alias them */ { return &rq->__lock; @@ -1650,33 +1650,33 @@ extern void raw_spin_rq_lock_nested(struct rq *rq, int subclass) extern bool raw_spin_rq_trylock(struct rq *rq) __cond_acquires(true, __rq_lockp(rq)); -static inline void raw_spin_rq_lock(struct rq *rq) +static __always_inline void raw_spin_rq_lock(struct rq *rq) __acquires(__rq_lockp(rq)) { raw_spin_rq_lock_nested(rq, 0); } -static inline void raw_spin_rq_unlock(struct rq *rq) +static __always_inline void raw_spin_rq_unlock(struct rq *rq) __releases(__rq_lockp(rq)) { raw_spin_unlock(rq_lockp(rq)); } -static inline void raw_spin_rq_lock_irq(struct rq *rq) +static __always_inline void raw_spin_rq_lock_irq(struct rq *rq) __acquires(__rq_lockp(rq)) { local_irq_disable(); raw_spin_rq_lock(rq); } -static inline void raw_spin_rq_unlock_irq(struct rq *rq) +static __always_inline void raw_spin_rq_unlock_irq(struct rq *rq) __releases(__rq_lockp(rq)) { raw_spin_rq_unlock(rq); local_irq_enable(); } -static inline unsigned long _raw_spin_rq_lock_irqsave(struct rq *rq) +static __always_inline unsigned long _raw_spin_rq_lock_irqsave(struct rq *rq) __acquires(__rq_lockp(rq)) { unsigned long flags; @@ -1687,7 +1687,7 @@ static inline unsigned long _raw_spin_rq_lock_irqsave(struct rq *rq) return flags; } -static inline void raw_spin_rq_unlock_irqrestore(struct rq *rq, unsigned long flags) +static __always_inline void raw_spin_rq_unlock_irqrestore(struct rq *rq, unsigned long flags) __releases(__rq_lockp(rq)) { raw_spin_rq_unlock(rq);