diff options
Diffstat (limited to 'src/third_party/wiredtiger/src/btree/bt_walk.c')
| -rw-r--r-- | src/third_party/wiredtiger/src/btree/bt_walk.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/third_party/wiredtiger/src/btree/bt_walk.c b/src/third_party/wiredtiger/src/btree/bt_walk.c index 049700952ee..86484feb7c9 100644 --- a/src/third_party/wiredtiger/src/btree/bt_walk.c +++ b/src/third_party/wiredtiger/src/btree/bt_walk.c @@ -340,9 +340,7 @@ __tree_walk_internal(WT_SESSION_IMPL *session, * Take a copy of any held page and clear the return value. Remember * the hazard pointer we're currently holding. * - * We may be passed a pointer to btree->evict_page that we are clearing - * here. We check when discarding pages that we're not discarding that - * page, so this clear must be done before the page is released. + * Clear the returned value, it makes future error handling easier. */ couple = couple_orig = ref = *refp; *refp = NULL; @@ -350,16 +348,19 @@ __tree_walk_internal(WT_SESSION_IMPL *session, /* If no page is active, begin a walk from the start/end of the tree. */ if (ref == NULL) { restart: /* - * We can reach here with a NULL or root reference; the release + * We can be here with a NULL or root WT_REF; the page release * function handles them internally, don't complicate this code * by calling them out. */ WT_ERR(__wt_page_release(session, couple, flags)); - couple = couple_orig = ref = &btree->root; - if (ref->page == NULL) - goto done; + /* + * We're not supposed to walk trees without root pages. As this + * has not always been the case, assert to debug that change. + */ + WT_ASSERT(session, btree->root.page != NULL); + couple = couple_orig = ref = &btree->root; initial_descent = true; goto descend; } |