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-rw-r--r--include/linux/gpu_buddy.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/gpu_buddy.h b/include/linux/gpu_buddy.h
index 71941a039648..a28f7d7637ca 100644
--- a/include/linux/gpu_buddy.h
+++ b/include/linux/gpu_buddy.h
@@ -173,6 +173,13 @@ struct gpu_buddy {
* that fits in the remaining space.
*/
struct gpu_buddy_block **roots;
+ /*
+ * Per-order free block scoreboard: free_scoreboard[order] holds the
+ * number of blocks of that order currently in the free state.
+ * Incremented in mark_free(), decremented wherever rbtree_remove() is
+ * called on a free block.
+ */
+ u64 *free_scoreboard;
/* public: */
unsigned int n_roots;
unsigned int max_order;