From: Howard Chu <hyc@symas.com>
Date: Wed, 9 Jul 2014 04:31:48 +0000 (-0700)
Subject: ITS#7825 more
X-Git-Tag: OPENLDAP_REL_ENG_2_4_40~126^2~12
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=276aa559698ff3eca42bc855237296c29efad4fd;p=openldap

ITS#7825 more

only update dbiseq in dbi_open on write txns
---

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index c920149611..0520eb72d5 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -8893,7 +8893,9 @@ int mdb_dbi_open(MDB_txn *txn, const char *name, unsigned int flags, MDB_dbi *db
 		txn->mt_dbxs[slot].md_name.mv_size = len;
 		txn->mt_dbxs[slot].md_rel = NULL;
 		txn->mt_dbflags[slot] = dbflag;
-		txn->mt_dbiseqs[slot] = ++txn->mt_env->me_dbiseqs[slot];
+		/* read txns don't track sequence numbers */
+		if (!(txn->mt_flags & MDB_TXN_RDONLY))
+			txn->mt_dbiseqs[slot] = ++txn->mt_env->me_dbiseqs[slot];
 		memcpy(&txn->mt_dbs[slot], data.mv_data, sizeof(MDB_db));
 		*dbi = slot;
 		mdb_default_cmp(txn, slot);