Don't report ghost buffers as evictable mem

Ghost meta/data buffers are not actually allocated AKAMAI: zfs: CR 3695072 Reviewed-by: Tim Chase <[email protected]> Reviewed-by: Richard Yao <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Debabrata Banerjee <[email protected]> Issue #6035
openzfs · May 2, 2017 · 9b50146 · 9b50146
1 parent 2b91b51
commit 9b50146
Showing 1 changed file with 2 additions and 7 deletions.
diff --git a/module/zfs/arc.c b/module/zfs/arc.c
@@ -4374,17 +4374,12 @@ arc_evictable_memory(void)
 	    refcount_count(&arc_mru->arcs_esize[ARC_BUFC_METADATA]) +
 	    refcount_count(&arc_mfu->arcs_esize[ARC_BUFC_DATA]) +
 	    refcount_count(&arc_mfu->arcs_esize[ARC_BUFC_METADATA]);
-	uint64_t ghost_clean =
-	    refcount_count(&arc_mru_ghost->arcs_esize[ARC_BUFC_DATA]) +
-	    refcount_count(&arc_mru_ghost->arcs_esize[ARC_BUFC_METADATA]) +
-	    refcount_count(&arc_mfu_ghost->arcs_esize[ARC_BUFC_DATA]) +
-	    refcount_count(&arc_mfu_ghost->arcs_esize[ARC_BUFC_METADATA]);
 	uint64_t arc_dirty = MAX((int64_t)arc_size - (int64_t)arc_clean, 0);
 
 	if (arc_dirty >= arc_c_min)
-		return (ghost_clean + arc_clean);
+		return (arc_clean);
 
-	return (ghost_clean + MAX((int64_t)arc_size - (int64_t)arc_c_min, 0));
+	return (MAX((int64_t)arc_size - (int64_t)arc_c_min, 0));
 }
 
 /*