1 files changed, 5 insertions, 36 deletions

diff --git a/src/dedo.go b/src/dedo.go
index dcc4956..437d04f 100644
--- a/src/dedo.go
+++ b/src/dedo.go
@@ -1294,12 +1294,6 @@ const version = 2
 // Represents a marker value to indicate that a file is a Bolt DB.
 const magic uint32 = 0xED0CDAED
 
-// IgnoreNoSync specifies whether the NoSync field of a DB is ignored when
-// syncing changes to a file.  This is required as some operating systems,
-// such as OpenBSD, do not have a unified buffer cache (UBC) and writes
-// must be synchronized using the msync(2) syscall.
-const IgnoreNoSync = runtime.GOOS == "openbsd"
-
 // Default values if not set in a DB instance.
 const (
 	DefaultMaxBatchSize  int = 1000
@@ -1320,18 +1314,6 @@ type DB struct {
 	// debugging purposes.
 	StrictMode bool
 
-	// Setting the NoSync flag will cause the database to skip fsync()
-	// calls after each commit. This can be useful when bulk loading data
-	// into a database and you can restart the bulk load in the event of
-	// a system failure or database corruption. Do not set this flag for
-	// normal use.
-	//
-	// If the package global IgnoreNoSync constant is true, this value is
-	// ignored.  See the comment on that constant for more details.
-	//
-	// THIS IS UNSAFE. PLEASE USE WITH CAUTION.
-	NoSync bool
-
 	// When true, skips the truncate call when growing the database.
 	// Setting this to true is only safe on non-ext3/ext4 systems.
 	// Skipping truncation avoids preallocation of hard drive space and
@@ -2039,12 +2021,6 @@ func safelyCall(fn func(*Tx) error, tx *Tx) (err error) {
 	return fn(tx)
 }
 
-// Sync executes fdatasync() against the database file handle.
-//
-// This is not necessary under normal operation, however, if you use NoSync
-// then it allows you to force the database file to sync against the disk.
-func (db *DB) Sync() error { return fdatasync(db) }
-
 // Stats retrieves ongoing performance stats for the database.
 // This is only updated when a transaction closes.
 func (db *DB) Stats() Stats {
@@ -3954,11 +3930,8 @@ func (tx *Tx) write() error {
 		}
 	}
 
-	// Ignore file sync if flag is set on DB.
-	if !tx.db.NoSync || IgnoreNoSync {
-		if err := fdatasync(tx.db); err != nil {
-			return err
-		}
+	if err := fdatasync(tx.db); err != nil {
+		return err
 	}
 
 	// Put small pages back to page pool.
@@ -3992,10 +3965,9 @@ func (tx *Tx) writeMeta() error {
 	if _, err := tx.db.ops.writeAt(buf, int64(p.id)*int64(tx.db.pageSize)); err != nil {
 		return err
 	}
-	if !tx.db.NoSync || IgnoreNoSync {
-		if err := fdatasync(tx.db); err != nil {
-			return err
-		}
+
+	if err := fdatasync(tx.db); err != nil {
+		return err
 	}
 
 	// Update statistics.
@@ -5020,7 +4992,6 @@ func (cmd *BenchCommand) Run(args ...string) error {
 	if err != nil {
 		return err
 	}
-	db.NoSync = options.NoSync
 	defer db.Close()
 
 	// Write to the database.
@@ -5058,7 +5029,6 @@ func (cmd *BenchCommand) ParseFlags(args []string) (*BenchOptions, error) {
 	fs.StringVar(&options.MemProfile, "memprofile", "", "")
 	fs.StringVar(&options.BlockProfile, "blockprofile", "", "")
 	fs.Float64Var(&options.FillPercent, "fill-percent", DefaultFillPercent, "")
-	fs.BoolVar(&options.NoSync, "no-sync", false, "")
 	fs.BoolVar(&options.Work, "work", false, "")
 	fs.StringVar(&options.Path, "path", "", "")
 	fs.SetOutput(cmd.Stderr)
@@ -5388,7 +5358,6 @@ type BenchOptions struct {
 	BlockProfile  string
 	StatsInterval time.Duration
 	FillPercent   float64
-	NoSync        bool
 	Work          bool
 	Path          string
 }