/**
* struct ion_buffer - metadata for a particular buffer
- * @ref: reference count
* @node: node in the ion_device buffers tree
+ * @list: element in list of deferred freeable buffers
* @dev: back pointer to the ion_device
* @heap: back pointer to the heap the buffer came from
* @flags: buffer specific flags
* @lock: protects the buffers cnt fields
* @kmap_cnt: number of times the buffer is mapped to the kernel
* @vaddr: the kernel mapping if kmap_cnt is not zero
- * @sg_table: the sg table for the buffer if dmap_cnt is not zero
+ * @sg_table: the sg table for the buffer
+ * @attachments: list of devices attached to this buffer
*/
struct ion_buffer {
union {
unsigned long flags;
unsigned int id;
const char *name;
+
+ /* deferred free support */
struct shrinker shrinker;
struct list_head free_list;
size_t free_list_size;
spinlock_t free_lock;
wait_queue_head_t waitqueue;
struct task_struct *task;
+
+ /* heap statistics */
u64 num_of_buffers;
u64 num_of_alloc_bytes;
u64 alloc_bytes_wm;