From: Howard Chu <hyc@openldap.org>
Date: Tue, 4 Oct 2011 01:02:17 +0000 (-0700)
Subject: Don't use Append mode when splits are caused by sub-page inserts
X-Git-Tag: accepted/tizen/5.0/unified/20181102.030725~964
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=934a19553c058a799ddd27b1ae1e885e37d37a95;p=platform%2Fupstream%2Flmdb.git

Don't use Append mode when splits are caused by sub-page inserts

Sub-pages need room to grow...
---

diff --git a/libraries/libmdb/mdb.c b/libraries/libmdb/mdb.c
index 3a82192..fb547ac 100644
--- a/libraries/libmdb/mdb.c
+++ b/libraries/libmdb/mdb.c
@@ -4082,6 +4082,8 @@ new_sub:
 	nflags = flags & NODE_ADD_FLAGS;
 	nsize = IS_LEAF2(mc->mc_pg[mc->mc_top]) ? key->mv_size : mdb_leaf_size(mc->mc_txn->mt_env, key, rdata);
 	if (SIZELEFT(mc->mc_pg[mc->mc_top]) < nsize) {
+		if (( flags & (F_DUPDATA|F_SUBDATA)) == F_DUPDATA )
+			nflags &= ~MDB_APPEND;
 		rc = mdb_page_split(mc, key, rdata, P_INVALID, nflags);
 	} else {
 		/* There is room already in this leaf page. */