remove mutex

server/torr/storage/torrstor/piece.go

@@ -3,7 +3,6 @@ package torrstor
 import (
 	"errors"
 	"io"
-	"sync"
 	"time"
 
 	"github.com/anacrolix/torrent"
@@ -20,14 +19,10 @@ type Piece struct {
 	accessed int64
 	buffer   []byte
 
-	mu    sync.RWMutex
 	cache *Cache
 }
 
 func (p *Piece) WriteAt(b []byte, off int64) (n int, err error) {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-
 	if p.buffer == nil {
 		go p.cache.cleanPieces()
 		p.buffer = make([]byte, p.cache.pieceLength, p.cache.pieceLength)
@@ -39,9 +34,6 @@ func (p *Piece) WriteAt(b []byte, off int64) (n int, err error) {
 }
 
 func (p *Piece) ReadAt(b []byte, off int64) (n int, err error) {
-	p.mu.RLock()
-	defer p.mu.RUnlock()
-
 	size := len(b)
 	if size+int(off) > len(p.buffer) {
 		size = len(p.buffer) - int(off)
@@ -84,8 +76,6 @@ func (p *Piece) Completion() storage.Completion {
 }
 
 func (p *Piece) Release() {
-	p.mu.Lock()
-	defer p.mu.Unlock()
 	if p.buffer != nil {
 		p.buffer = nil
 	}