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| author | Andrew Tridgell <tridge@samba.org> | 2009-05-28 16:08:28 +1000 |
|---|---|---|
| committer | Andrew Tridgell <tridge@samba.org> | 2009-05-28 16:08:28 +1000 |
| commit | 4b4fec65db4e202afa13b2d15867f4d8a54d154e (patch) | |
| tree | 170670eff8995c25fdfcb77c4fb987951d18c2e4 /lib/tdb/common | |
| parent | a9542ba21b4d4ef088ac2cf31f9f4074dc211aa8 (diff) | |
| download | samba-4b4fec65db4e202afa13b2d15867f4d8a54d154e.tar.gz samba-4b4fec65db4e202afa13b2d15867f4d8a54d154e.tar.bz2 samba-4b4fec65db4e202afa13b2d15867f4d8a54d154e.zip | |
make TDB_NOSYNC affect all the fsync/msync calls in transactions
During a transaction commit tdb normally uses fsync/msync calls to
make it crash safe. This can be disabled using the TDB_NOSYNC flag,
but it wasn't disabling all the code paths that caused a fsync/msync.
Diffstat (limited to 'lib/tdb/common')
| -rw-r--r-- | lib/tdb/common/transaction.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/lib/tdb/common/transaction.c b/lib/tdb/common/transaction.c index cb723ed134..f5c04a69cc 100644 --- a/lib/tdb/common/transaction.c +++ b/lib/tdb/common/transaction.c @@ -522,6 +522,10 @@ fail: */ static int transaction_sync(struct tdb_context *tdb, tdb_off_t offset, tdb_len_t length) { + if (tdb->flags & TDB_NOSYNC) { + return 0; + } + if (fsync(tdb->fd) != 0) { tdb->ecode = TDB_ERR_IO; TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_transaction: fsync failed\n")); @@ -1030,11 +1034,9 @@ int tdb_transaction_commit(struct tdb_context *tdb) SAFE_FREE(tdb->transaction->blocks); tdb->transaction->num_blocks = 0; - if (!(tdb->flags & TDB_NOSYNC)) { - /* ensure the new data is on disk */ - if (transaction_sync(tdb, 0, tdb->map_size) == -1) { - return -1; - } + /* ensure the new data is on disk */ + if (transaction_sync(tdb, 0, tdb->map_size) == -1) { + return -1; } tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0, 1); |