OpenZFS 7867 - ARC space accounting leak

Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Tim Chase <[email protected]> Ported-by: Brian Behlendorf <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7867 OpenZFS-commit: openzfs/openzfs@aa1f740d Closes openzfs#5874
pecker168 · Mar 8, 2017 · 423e7b6 · 423e7b6
1 parent db4ed56
commit 423e7b6
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/module/zfs/arc.c b/module/zfs/arc.c
@@ -2510,6 +2510,12 @@ arc_hdr_free_on_write(arc_buf_hdr_t *hdr)
 		    size, hdr);
 	}
 	(void) refcount_remove_many(&state->arcs_size, size, hdr);
+	if (type == ARC_BUFC_METADATA) {
+		arc_space_return(size, ARC_SPACE_META);
+	} else {
+		ASSERT(type == ARC_BUFC_DATA);
+		arc_space_return(size, ARC_SPACE_DATA);
+	}
 
 	l2arc_free_abd_on_write(hdr->b_l1hdr.b_pabd, size, type);
 }