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Fix free page re-use

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This commit is contained in:
Howard Chu 2011-08-03 03:29:15 -07:00
parent 415d98755d
commit 8211dd3960
1 changed files with 3 additions and 1 deletions
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4
libraries/libmdb/mdb.c
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@ -398,7 +398,9 @@ mdb_alloc_page(MDB_txn *txn, MDB_page *parent, unsigned int parent_idx, int num)
ULONG oldest = txn->mt_txnid - 2;
unsigned int i;
for (i=0; i<txn->mt_env->me_txns->mt_numreaders; i++) {
if (txn->mt_env->me_txns->mt_readers[i].mr_txnid < oldest)
ULONG mr = txn->mt_env->me_txns->mt_readers[i].mr_txnid;
if (!mr) continue;
if (mr < oldest)
oldest = txn->mt_env->me_txns->mt_readers[i].mr_txnid;
}
if (oldest > txn->mt_env->me_pghead->mo_txnid) {