enhance: cancel context when emptyDir failed (#4389)

Signed-off-by: jiefeng <[email protected]>

pkg/meta/utils.go

@@ -284,14 +284,15 @@ func (m *baseMeta) emptyDir(ctx Context, inode Ino, skipCheckTrash bool, count *
 					wg.Add(1)
 					go func(child Ino, name string) {
 						defer wg.Done()
-						e := m.emptyEntry(ctx, inode, name, child, skipCheckTrash, count, concurrent)
-						if e != 0 && e != syscall.ENOENT {
-							status = e
+						st := m.emptyEntry(ctx, inode, name, child, skipCheckTrash, count, concurrent)
+						if st != 0 && st != syscall.ENOENT {
+							status = st
 						}
 						<-concurrent
 					}(e.Inode, string(e.Name))
 				default:
 					if st := m.emptyEntry(ctx, inode, string(e.Name), e.Inode, skipCheckTrash, count, concurrent); st != 0 && st != syscall.ENOENT {
+						ctx.Cancel()
 						return st
 					}
 				}
@@ -300,6 +301,7 @@ func (m *baseMeta) emptyDir(ctx Context, inode Ino, skipCheckTrash bool, count *
 					atomic.AddUint64(count, 1)
 				}
 				if st := m.Unlink(ctx, inode, string(e.Name), skipCheckTrash); st != 0 && st != syscall.ENOENT {
+					ctx.Cancel()
 					return st
 				}
 			}