libceph: use alloc_pg_mapping() in __decode_pg_upmap_items()

... otherwise we die in insert_pg_mapping(), which wants pg->node to be empty, i.e. initialized with RB_CLEAR_NODE. Fixes: 6f428df ("libceph: pg_upmap[_items] infrastructure") Signed-off-by: Ilya Dryomov <[email protected]>
chewitt · Jul 17, 2017 · f5cc689 · f5cc689
1 parent c2acfd9
commit f5cc689
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
@@ -1400,7 +1400,7 @@ static struct ceph_pg_mapping *__decode_pg_upmap_items(void **p, void *end,
 		return ERR_PTR(-EINVAL);
 
 	ceph_decode_need(p, end, 2 * len * sizeof(u32), e_inval);
-	pg = kzalloc(sizeof(*pg) + 2 * len * sizeof(u32), GFP_NOIO);
+	pg = alloc_pg_mapping(2 * len * sizeof(u32));
 	if (!pg)
 		return ERR_PTR(-ENOMEM);