17 static int check_vma(struct dev_dax *dev_dax, struct vm_area_struct *vma,  in check_vma()  argument
27 	if ((vma->vm_flags & VM_MAYSHARE) != VM_MAYSHARE) {  in check_vma()
35 	if (vma->vm_start & mask || vma->vm_end & mask) {  in check_vma()
38 				current->comm, func, vma->vm_start, vma->vm_end,  in check_vma()
43 	if (!vma_is_dax(vma)) {  in check_vma()
80 	struct file *filp = vmf->vma->vm_file;  in dax_set_mapping()
88 	pgoff = linear_page_index(vmf->vma,  in dax_set_mapping()
111 	if (check_vma(dev_dax, vmf->vma, __func__))  in __dev_dax_pte_fault()
133 	return vmf_insert_mixed(vmf->vma, vmf->address, pfn);  in __dev_dax_pte_fault()
146 	if (check_vma(dev_dax, vmf->vma, __func__))  in __dev_dax_pmd_fault()
161 	if (pmd_addr < vmf->vma->vm_start ||  in __dev_dax_pmd_fault()
162 			(pmd_addr + PMD_SIZE) > vmf->vma->vm_end)  in __dev_dax_pmd_fault()
165 	pgoff = linear_page_index(vmf->vma, pmd_addr);  in __dev_dax_pmd_fault()
191 	if (check_vma(dev_dax, vmf->vma, __func__))  in __dev_dax_pud_fault()
206 	if (pud_addr < vmf->vma->vm_start ||  in __dev_dax_pud_fault()
207 			(pud_addr + PUD_SIZE) > vmf->vma->vm_end)  in __dev_dax_pud_fault()
210 	pgoff = linear_page_index(vmf->vma, pud_addr);  in __dev_dax_pud_fault()
233 	struct file *filp = vmf->vma->vm_file;  in dev_dax_huge_fault()
240 			vmf->vma->vm_start, vmf->vma->vm_end, order);  in dev_dax_huge_fault()
262 static int dev_dax_may_split(struct vm_area_struct *vma, unsigned long addr)  in dev_dax_may_split()  argument
264 	struct file *filp = vma->vm_file;  in dev_dax_may_split()
272 static unsigned long dev_dax_pagesize(struct vm_area_struct *vma)  in dev_dax_pagesize()  argument
274 	struct file *filp = vma->vm_file;  in dev_dax_pagesize()
287 static int dax_mmap(struct file *filp, struct vm_area_struct *vma)  in dax_mmap()  argument
299 	rc = check_vma(dev_dax, vma, __func__);  in dax_mmap()
304 	vma->vm_ops = &dax_vm_ops;  in dax_mmap()
305 	vm_flags_set(vma, VM_HUGEPAGE);  in dax_mmap()