332 static inline int private_mapping_ok(struct vm_area_struct *vma)  in private_mapping_ok()  argument
334 	return vma->vm_flags & VM_MAYSHARE;  in private_mapping_ok()
338 static inline int private_mapping_ok(struct vm_area_struct *vma)  in private_mapping_ok()  argument
350 static int mmap_mem(struct file *file, struct vm_area_struct *vma)  in mmap_mem()  argument
352 	size_t size = vma->vm_end - vma->vm_start;  in mmap_mem()
353 	phys_addr_t offset = (phys_addr_t)vma->vm_pgoff << PAGE_SHIFT;  in mmap_mem()
359 	if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size))  in mmap_mem()
362 	if (!private_mapping_ok(vma))  in mmap_mem()
365 	if (!range_is_allowed(vma->vm_pgoff, size))  in mmap_mem()
368 	if (!phys_mem_access_prot_allowed(file, vma->vm_pgoff, size,  in mmap_mem()
369 						&vma->vm_page_prot))  in mmap_mem()
372 	vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,  in mmap_mem()
374 						 vma->vm_page_prot);  in mmap_mem()
376 	vma->vm_ops = &mmap_mem_ops;  in mmap_mem()
379 	if (remap_pfn_range(vma,  in mmap_mem()
380 			    vma->vm_start,  in mmap_mem()
381 			    vma->vm_pgoff,  in mmap_mem()
383 			    vma->vm_page_prot)) {  in mmap_mem()
389 static int mmap_kmem(struct file *file, struct vm_area_struct *vma)  in mmap_kmem()  argument
394 	pfn = __pa((u64)vma->vm_pgoff << PAGE_SHIFT) >> PAGE_SHIFT;  in mmap_kmem()
406 	vma->vm_pgoff = pfn;  in mmap_kmem()
407 	return mmap_mem(file, vma);  in mmap_kmem()
698 static int mmap_zero(struct file *file, struct vm_area_struct *vma)  in mmap_zero()  argument
703 	if (vma->vm_flags & VM_SHARED)  in mmap_zero()
704 		return shmem_zero_setup(vma);  in mmap_zero()