Import wiredtiger: b22e16b7643e0e07c784962899b3a45728536947 from branch mongodb-5.0

ref: d05021d0ee..b22e16b764
for: 4.9.0

WT-6563       Create a reproducer for invalid modification application
WT-6672       Don't increase the writegen number until RTS cleans up the checkpoint
WT-6859       Implement search_near method for the history store cursor

1 files changed, 31 insertions, 0 deletions

diff --git a/src/third_party/wiredtiger/src/conn/conn_dhandle.c b/src/third_party/wiredtiger/src/conn/conn_dhandle.c
index 16a9d7812b5..8727ed1b18b 100644
--- a/src/third_party/wiredtiger/src/conn/conn_dhandle.c
+++ b/src/third_party/wiredtiger/src/conn/conn_dhandle.c
@@ -848,6 +848,37 @@ restart:
 }
 
 /*
+ * __wt_dhandle_update_write_gens --
+ *     Update the open dhandles write generation and base write generation number.
+ */
+void
+__wt_dhandle_update_write_gens(WT_SESSION_IMPL *session)
+{
+    WT_BTREE *btree;
+    WT_CONNECTION_IMPL *conn;
+    WT_DATA_HANDLE *dhandle;
+
+    conn = S2C(session);
+
+    for (dhandle = NULL;;) {
+        WT_WITH_HANDLE_LIST_WRITE_LOCK(session, WT_DHANDLE_NEXT(session, dhandle, &conn->dhqh, q));
+        if (dhandle == NULL)
+            break;
+        btree = (WT_BTREE *)dhandle->handle;
+
+        WT_ASSERT(session, btree != NULL);
+
+        /*
+         * Initialize the btrees write generation numbers and runtime write generations after
+         * rollback to stable so that the transaction ids of the pages will be reset when loaded
+         * from disk to memory.
+         */
+        btree->write_gen = btree->base_write_gen = btree->run_write_gen =
+          WT_MAX(btree->write_gen, conn->base_write_gen);
+    }
+}
+
+/*
  * __wt_verbose_dump_handles --
  *     Dump information about all data handles.
  */