diff options
Diffstat (limited to 'lib/tdb/common/transaction.c')
| -rw-r--r-- | lib/tdb/common/transaction.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/lib/tdb/common/transaction.c b/lib/tdb/common/transaction.c index 20f2bfc2cd..b8988ea830 100644 --- a/lib/tdb/common/transaction.c +++ b/lib/tdb/common/transaction.c @@ -135,6 +135,9 @@ struct tdb_transaction { bool prepared; tdb_off_t magic_offset; + /* set when the GLOBAL_LOCK has been taken */ + bool global_lock_taken; + /* old file size before transaction */ tdb_len_t old_map_size; @@ -603,6 +606,11 @@ int _tdb_transaction_cancel(struct tdb_context *tdb) } } + if (tdb->transaction->global_lock_taken) { + tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0, 1); + tdb->transaction->global_lock_taken = false; + } + /* remove any global lock created during the transaction */ if (tdb->global_lock.count != 0) { tdb_brlock(tdb, FREELIST_TOP, F_UNLCK, F_SETLKW, 0, 4*tdb->header.hash_size); @@ -947,11 +955,12 @@ static int _tdb_transaction_prepare_commit(struct tdb_context *tdb) return -1; } + tdb->transaction->global_lock_taken = true; + if (!(tdb->flags & TDB_NOSYNC)) { /* write the recovery data to the end of the file */ if (transaction_setup_recovery(tdb, &tdb->transaction->magic_offset) == -1) { TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_transaction_prepare_commit: failed to setup recovery data\n")); - tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0, 1); _tdb_transaction_cancel(tdb); return -1; } @@ -966,7 +975,6 @@ static int _tdb_transaction_prepare_commit(struct tdb_context *tdb) tdb->transaction->old_map_size) == -1) { tdb->ecode = TDB_ERR_IO; TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_transaction_prepare_commit: expansion failed\n")); - tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0, 1); _tdb_transaction_cancel(tdb); return -1; } @@ -1056,7 +1064,6 @@ int tdb_transaction_commit(struct tdb_context *tdb) tdb_transaction_recover(tdb); _tdb_transaction_cancel(tdb); - tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0, 1); TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_transaction_commit: write failed\n")); return -1; @@ -1072,8 +1079,6 @@ int tdb_transaction_commit(struct tdb_context *tdb) return -1; } - tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0, 1); - /* TODO: maybe write to some dummy hdr field, or write to magic offset without mmap, before the last sync, instead of the |