36 static inline int is_dma_buf_file(struct file *);
45 static int dma_buf_release(struct inode *inode, struct file *file)  in dma_buf_release()  argument
49 	if (!is_dma_buf_file(file))  in dma_buf_release()
52 	dmabuf = file->private_data;  in dma_buf_release()
79 static int dma_buf_mmap_internal(struct file *file, struct vm_area_struct *vma)  in dma_buf_mmap_internal()  argument
83 	if (!is_dma_buf_file(file))  in dma_buf_mmap_internal()
86 	dmabuf = file->private_data;  in dma_buf_mmap_internal()
96 static loff_t dma_buf_llseek(struct file *file, loff_t offset, int whence)  in dma_buf_llseek()  argument
101 	if (!is_dma_buf_file(file))  in dma_buf_llseek()
104 	dmabuf = file->private_data;  in dma_buf_llseek()
133 static unsigned int dma_buf_poll(struct file *file, poll_table *poll)  in dma_buf_poll()  argument
142 	dmabuf = file->private_data;  in dma_buf_poll()
148 	poll_wait(file, &dmabuf->poll, poll);  in dma_buf_poll()
262 static inline int is_dma_buf_file(struct file *file)  in is_dma_buf_file()  argument
264 	return file->f_op == &dma_buf_fops;  in is_dma_buf_file()
286 	struct file *file;  in dma_buf_export()  local
323 	file = anon_inode_getfile("dmabuf", &dma_buf_fops, dmabuf,  in dma_buf_export()
325 	if (IS_ERR(file)) {  in dma_buf_export()
327 		return ERR_CAST(file);  in dma_buf_export()
330 	file->f_mode |= FMODE_LSEEK;  in dma_buf_export()
331 	dmabuf->file = file;  in dma_buf_export()
355 	if (!dmabuf || !dmabuf->file)  in dma_buf_fd()
362 	fd_install(fd, dmabuf->file);  in dma_buf_fd()
378 	struct file *file;  in dma_buf_get()  local
380 	file = fget(fd);  in dma_buf_get()
382 	if (!file)  in dma_buf_get()
385 	if (!is_dma_buf_file(file)) {  in dma_buf_get()
386 		fput(file);  in dma_buf_get()
390 	return file->private_data;  in dma_buf_get()
402 	if (WARN_ON(!dmabuf || !dmabuf->file))  in dma_buf_put()
405 	fput(dmabuf->file);  in dma_buf_put()
664 	struct file *oldfile;  in dma_buf_mmap()
680 	get_file(dmabuf->file);  in dma_buf_mmap()
682 	vma->vm_file = dmabuf->file;  in dma_buf_mmap()
689 		fput(dmabuf->file);  in dma_buf_mmap()
798 				buf_obj->file->f_flags, buf_obj->file->f_mode,  in dma_buf_describe()
799 				file_count(buf_obj->file),  in dma_buf_describe()
833 static int dma_buf_debug_open(struct inode *inode, struct file *file)  in dma_buf_debug_open()  argument
835 	return single_open(file, dma_buf_show, inode->i_private);  in dma_buf_debug_open()