893 static int validate_mmap_request(struct file *file,  in validate_mmap_request()  argument
924 	if (file) {  in validate_mmap_request()
926 		if (!file->f_op->mmap)  in validate_mmap_request()
933 		if (file->f_op->mmap_capabilities) {  in validate_mmap_request()
934 			capabilities = file->f_op->mmap_capabilities(file);  in validate_mmap_request()
938 			switch (file_inode(file)->i_mode & S_IFMT) {  in validate_mmap_request()
958 		if (!file->f_op->get_unmapped_area)  in validate_mmap_request()
960 		if (!(file->f_mode & FMODE_CAN_READ))  in validate_mmap_request()
964 		if (!(file->f_mode & FMODE_READ))  in validate_mmap_request()
970 			    !(file->f_mode & FMODE_WRITE))  in validate_mmap_request()
973 			if (IS_APPEND(file_inode(file)) &&  in validate_mmap_request()
974 			    (file->f_mode & FMODE_WRITE))  in validate_mmap_request()
977 			if (locks_verify_locked(file))  in validate_mmap_request()
1012 		if (path_noexec(&file->f_path)) {  in validate_mmap_request()
1054 static unsigned long determine_vm_flags(struct file *file,  in determine_vm_flags()  argument
1067 		if (file && !(prot & PROT_WRITE))  in determine_vm_flags()
1205 unsigned long do_mmap(struct file *file,  in do_mmap()  argument
1225 	ret = validate_mmap_request(file, addr, len, prot, flags, pgoff,  in do_mmap()
1236 	vm_flags |= determine_vm_flags(file, prot, flags, capabilities);  in do_mmap()
1255 	if (file) {  in do_mmap()
1256 		region->vm_file = get_file(file);  in do_mmap()
1257 		vma->vm_file = get_file(file);  in do_mmap()
1285 			    file_inode(file))  in do_mmap()
1340 			addr = file->f_op->get_unmapped_area(file, addr, len,  in do_mmap()
1367 	if (file && vma->vm_flags & VM_SHARED)  in do_mmap()
1434 	struct file *file = NULL;  in SYSCALL_DEFINE6()  local
1439 		file = fget(fd);  in SYSCALL_DEFINE6()
1440 		if (!file)  in SYSCALL_DEFINE6()
1446 	retval = vm_mmap_pgoff(file, addr, len, prot, flags, pgoff);  in SYSCALL_DEFINE6()
1448 	if (file)  in SYSCALL_DEFINE6()
1449 		fput(file);  in SYSCALL_DEFINE6()
1789 unsigned long arch_get_unmapped_area(struct file *file, unsigned long addr,  in arch_get_unmapped_area()  argument