Commit 7dbbc8f5 authored by Yosry Ahmed's avatar Yosry Ahmed Committed by Andrew Morton
Browse files

x86/mm: delete unused cpu argument to leave_mm() 

The argument is unused since commit 3d28ebce ("x86/mm: Rework lazy
TLB to track the actual loaded mm"), delete it.

Link: https://lkml.kernel.org/r/20240126080644.1714297-1-yosryahmed@google.com


Signed-off-by: default avatarYosry Ahmed <yosryahmed@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 5cec4eb7

arch/x86/include/asm/mmu.h

+1 −1
Original line number Diff line number Diff line
@@ -75,7 +75,7 @@ typedef struct { 
		.lock = __MUTEX_INITIALIZER(mm.context.lock),		\

	}



void leave_mm(int cpu);

void leave_mm(void);

#define leave_mm leave_mm



#endif /* _ASM_X86_MMU_H */

arch/x86/kernel/alternative.c

+1 −1
Original line number Diff line number Diff line
@@ -1805,7 +1805,7 @@ static inline temp_mm_state_t use_temporary_mm(struct mm_struct *mm) 
	 * restoring the previous mm.

	 */

	if (this_cpu_read(cpu_tlbstate_shared.is_lazy))

		leave_mm(smp_processor_id());

		leave_mm();



	temp_state.mm = this_cpu_read(cpu_tlbstate.loaded_mm);

	switch_mm_irqs_off(NULL, mm, current);

arch/x86/mm/tlb.c

+1 −1
Original line number Diff line number Diff line
@@ -299,7 +299,7 @@ static void load_new_mm_cr3(pgd_t *pgdir, u16 new_asid, unsigned long lam, 
	write_cr3(new_mm_cr3);

}



void leave_mm(int cpu)

void leave_mm(void)

{

	struct mm_struct *loaded_mm = this_cpu_read(cpu_tlbstate.loaded_mm);

arch/x86/xen/mmu_pv.c

+1 −1
Original line number Diff line number Diff line
@@ -913,7 +913,7 @@ static void drop_mm_ref_this_cpu(void *info) 
	struct mm_struct *mm = info;



	if (this_cpu_read(cpu_tlbstate.loaded_mm) == mm)

		leave_mm(smp_processor_id());

		leave_mm();



	/*

	 * If this cpu still has a stale cr3 reference, then make sure

drivers/cpuidle/cpuidle.c

+1 −1
Original line number Diff line number Diff line
@@ -237,7 +237,7 @@ noinstr int cpuidle_enter_state(struct cpuidle_device *dev, 
	}



	if (target_state->flags & CPUIDLE_FLAG_TLB_FLUSHED)

		leave_mm(dev->cpu);

		leave_mm();



	/* Take note of the planned idle state. */

	sched_idle_set_state(target_state);