Fix locks on Reader.SetReadahead

diff --git a/reader.go b/reader.go
index 4689bc64e563d3babea39a0e27e6f730fcabe638..1b3815f3bdc6a77fa8330f09131131316eda3e11 100644 (file)
--- a/reader.go
+++ b/reader.go
@@ -34,8 +34,11 @@ func (r *Reader) SetResponsive() {
 // prioritized in preparation for further reads.
 func (r *Reader) SetReadahead(readahead int64) {
        r.mu.Lock()
-       defer r.mu.Unlock()
        r.readahead = readahead
+       r.mu.Unlock()
+       r.t.cl.mu.Lock()
+       defer r.t.cl.mu.Unlock()
+       r.tickleClient()
 }
 
 func (r *Reader) readable(off int64) (ret bool) {