22 struct vm_area_struct *find_dst_vma(struct mm_struct *dst_mm,  in find_dst_vma()  argument
32 	dst_vma = find_vma(dst_mm, dst_start);  in find_dst_vma()
57 int mfill_atomic_install_pte(struct mm_struct *dst_mm, pmd_t *dst_pmd,  in mfill_atomic_install_pte()  argument
83 	dst_pte = pte_offset_map_lock(dst_mm, dst_pmd, dst_addr, &ptl);  in mfill_atomic_install_pte()
108 	inc_mm_counter(dst_mm, mm_counter(page));  in mfill_atomic_install_pte()
113 	set_pte_at(dst_mm, dst_addr, dst_pte, _dst_pte);  in mfill_atomic_install_pte()
123 static int mcopy_atomic_pte(struct mm_struct *dst_mm,  in mcopy_atomic_pte()  argument
169 	if (mem_cgroup_charge(page, dst_mm, GFP_KERNEL))  in mcopy_atomic_pte()
172 	ret = mfill_atomic_install_pte(dst_mm, dst_pmd, dst_vma, dst_addr,  in mcopy_atomic_pte()
183 static int mfill_zeropage_pte(struct mm_struct *dst_mm,  in mfill_zeropage_pte()  argument
196 	dst_pte = pte_offset_map_lock(dst_mm, dst_pmd, dst_addr, &ptl);  in mfill_zeropage_pte()
209 	set_pte_at(dst_mm, dst_addr, dst_pte, _dst_pte);  in mfill_zeropage_pte()
219 static int mcontinue_atomic_pte(struct mm_struct *dst_mm,  in mcontinue_atomic_pte()  argument
238 	ret = mfill_atomic_install_pte(dst_mm, dst_pmd, dst_vma, dst_addr,  in mcontinue_atomic_pte()
279 static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,  in __mcopy_atomic_hugetlb()  argument
305 		mmap_read_unlock(dst_mm);  in __mcopy_atomic_hugetlb()
329 		dst_vma = find_dst_vma(dst_mm, dst_start, len);  in __mcopy_atomic_hugetlb()
365 		dst_pte = huge_pte_alloc(dst_mm, dst_vma, dst_addr, vma_hpagesize);  in __mcopy_atomic_hugetlb()
380 		err = hugetlb_mcopy_atomic_pte(dst_mm, dst_pte, dst_vma,  in __mcopy_atomic_hugetlb()
390 			mmap_read_unlock(dst_mm);  in __mcopy_atomic_hugetlb()
401 			mmap_read_lock(dst_mm);  in __mcopy_atomic_hugetlb()
421 	mmap_read_unlock(dst_mm);  in __mcopy_atomic_hugetlb()
478 extern ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm,
486 static __always_inline ssize_t mfill_atomic_pte(struct mm_struct *dst_mm,  in mfill_atomic_pte()  argument
498 		return mcontinue_atomic_pte(dst_mm, dst_pmd, dst_vma, dst_addr,  in mfill_atomic_pte()
514 			err = mcopy_atomic_pte(dst_mm, dst_pmd, dst_vma,  in mfill_atomic_pte()
518 			err = mfill_zeropage_pte(dst_mm, dst_pmd,  in mfill_atomic_pte()
522 		err = shmem_mfill_atomic_pte(dst_mm, dst_pmd, dst_vma,  in mfill_atomic_pte()
531 static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,  in __mcopy_atomic()  argument
562 	mmap_read_lock(dst_mm);  in __mcopy_atomic()
578 	dst_vma = find_dst_vma(dst_mm, dst_start, len);  in __mcopy_atomic()
603 		return  __mcopy_atomic_hugetlb(dst_mm, dst_vma, dst_start,  in __mcopy_atomic()
626 		dst_pmd = mm_alloc_pmd(dst_mm, dst_addr);  in __mcopy_atomic()
642 		    unlikely(__pte_alloc(dst_mm, dst_pmd))) {  in __mcopy_atomic()
655 		err = mfill_atomic_pte(dst_mm, dst_pmd, dst_vma, dst_addr,  in __mcopy_atomic()
662 			mmap_read_unlock(dst_mm);  in __mcopy_atomic()
692 	mmap_read_unlock(dst_mm);  in __mcopy_atomic()
702 ssize_t mcopy_atomic(struct mm_struct *dst_mm, unsigned long dst_start,  in mcopy_atomic()  argument
706 	return __mcopy_atomic(dst_mm, dst_start, src_start, len,  in mcopy_atomic()
710 ssize_t mfill_zeropage(struct mm_struct *dst_mm, unsigned long start,  in mfill_zeropage()  argument
713 	return __mcopy_atomic(dst_mm, start, 0, len, MCOPY_ATOMIC_ZEROPAGE,  in mfill_zeropage()
717 ssize_t mcopy_continue(struct mm_struct *dst_mm, unsigned long start,  in mcopy_continue()  argument
720 	return __mcopy_atomic(dst_mm, start, 0, len, MCOPY_ATOMIC_CONTINUE,  in mcopy_continue()
724 int mwriteprotect_range(struct mm_struct *dst_mm, unsigned long start,  in mwriteprotect_range()  argument
740 	mmap_read_lock(dst_mm);  in mwriteprotect_range()
752 	dst_vma = find_dst_vma(dst_mm, start, len);  in mwriteprotect_range()
774 	mmap_read_unlock(dst_mm);  in mwriteprotect_range()