7867 ARC space accounting leak

Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Approved by: Dan McDonald <danmcd@omniti.com>
illumos · Mar 7, 2017 · 6de76ce · 6de76ce
1 parent e961d62
commit 6de76ce
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/usr/src/uts/common/fs/zfs/arc.c b/usr/src/uts/common/fs/zfs/arc.c
@@ -2587,6 +2587,12 @@ 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_data_on_write(hdr->b_l1hdr.b_pdata, size, type);
 }