From 45e61fcf61ed9863fbe2b116fe0763fc139bbe0d Mon Sep 17 00:00:00 2001 From: Volker Lendecke Date: Fri, 6 Jan 2012 17:19:54 +0100 Subject: s3: Add a "lock_order" argument to db_open This will be used to enforce a lock hierarchy between the databases. We have seen deadlocks between locking.tdb, brlock.tdb, serverid.tdb and notify*.tdb. These should be fixed by refusing a dbwrap_fetch_locked that does not follow a defined lock hierarchy. --- source3/passdb/account_pol.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'source3/passdb/account_pol.c') diff --git a/source3/passdb/account_pol.c b/source3/passdb/account_pol.c index a32d07517d..4cb185c494 100644 --- a/source3/passdb/account_pol.c +++ b/source3/passdb/account_pol.c @@ -220,12 +220,13 @@ bool init_account_policy(void) } db = db_open(NULL, state_path("account_policy.tdb"), 0, TDB_DEFAULT, - O_RDWR, 0600); + O_RDWR, 0600, DBWRAP_LOCK_ORDER_1); if (db == NULL) { /* the account policies files does not exist or open * failed, try to create a new one */ db = db_open(NULL, state_path("account_policy.tdb"), 0, - TDB_DEFAULT, O_RDWR|O_CREAT, 0600); + TDB_DEFAULT, O_RDWR|O_CREAT, 0600, + DBWRAP_LOCK_ORDER_1); if (db == NULL) { DEBUG(0,("Failed to open account policy database\n")); return False; -- cgit