2787 	struct mmu_gather tlb;  in unmap_region()  local
2791 	tlb_gather_mmu(&tlb, mm, start, end);  in unmap_region()
2793 	unmap_vmas(&tlb, vma, start, end);  in unmap_region()
2805 			tlb_flush_mmu(&tlb);  in unmap_region()
2810 	free_pgtables(&tlb, vma, prev ? prev->vm_end : FIRST_USER_ADDRESS,  in unmap_region()
2812 	tlb_finish_mmu(&tlb, start, end);  in unmap_region()
3302 	struct mmu_gather tlb;  in exit_mmap()  local
3352 	tlb_gather_mmu(&tlb, mm, 0, -1);  in exit_mmap()
3355 	unmap_vmas(&tlb, vma, 0, -1);  in exit_mmap()
3356 	free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, USER_PGTABLES_CEILING);  in exit_mmap()
3357 	tlb_finish_mmu(&tlb, 0, -1);  in exit_mmap()