---
block/qcow2-dedup.c | 11 +++++++++++
block/qcow2.h | 18 ++++++++++++++++++
2 files changed, 29 insertions(+)
diff --git a/block/qcow2-dedup.c b/block/qcow2-dedup.c
index 308b4f6..72ce1d7 100644
--- a/block/qcow2-dedup.c
+++ b/block/qcow2-dedup.c
@@ -1311,3 +1311,14 @@ void qcow2_dedup_close(BlockDriverState *bs)
{
qcow2_dedup_free(bs);
}
+
+void qcow2_dedup_update_metrics(BlockDriverState *bs)
+{
+ BDRVQcowState *s = bs->opaque;
+
+ uint64_t nb_hashs = s->dedup_metrics.ram_hash_creations -
+ s->dedup_metrics.ram_hash_deletions;
+
+ s->dedup_metrics.ram_usage = nb_hashs * sizeof(GTreeNode_Copy) * 2;
+ s->dedup_metrics.ram_usage += nb_hashs * sizeof(QCowHashNode);
+}
diff --git a/block/qcow2.h b/block/qcow2.h
index fc393d5..191b272 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -76,6 +76,23 @@
#define QCOW_STRATEGY_DISK (1 << 1)
#define QCOW_STRATEGY_RUNNING (1 << 2)
+/* This is an internal structure of glib gtree.c
+ * copy it here so we can compute it's size
+ * from glib/gtree.c in glib sources
+ */
+typedef struct _GTreeNode_Copy GTreeNode_Copy;
+
+struct _GTreeNode_Copy
+{
+ gpointer key; /* key for this node */
+ gpointer value; /* value stored at this node */
+ GTreeNode_Copy *left; /* left subtree */
+ GTreeNode_Copy *right; /* right subtree */
+ gint8 balance; /* height (right) - height (left) */
+ guint8 left_child;
+ guint8 right_child;
+};
+
typedef enum {
QCOW_HASH_SHA256 = 0,
QCOW_HASH_SHA3 = 1,
@@ -507,5 +524,6 @@ void qcow2_dedup_refcount_half_max_reached(BlockDriverState
*bs,
bool qcow2_dedup_is_running(BlockDriverState *bs);
int qcow2_dedup_init(BlockDriverState *bs);
void qcow2_dedup_close(BlockDriverState *bs);
+void qcow2_dedup_update_metrics(BlockDriverState *bs);
#endif
--
1.7.10.4
