runtime/race: tell race detector what memory Read/Write syscalls touch
Fixes #5567.
R=golang-dev, dave, iant
CC=golang-dev
https://golang.org/cl/10085043
diff --git a/src/pkg/syscall/syscall_plan9.go b/src/pkg/syscall/syscall_plan9.go
index bc25057..2e1c064 100644
--- a/src/pkg/syscall/syscall_plan9.go
+++ b/src/pkg/syscall/syscall_plan9.go
@@ -120,17 +120,10 @@
}
func Read(fd int, p []byte) (n int, err error) {
- n, err = Pread(fd, p, -1)
- if raceenabled && err == nil {
- raceAcquire(unsafe.Pointer(&ioSync))
- }
- return
+ return Pread(fd, p, -1)
}
func Write(fd int, p []byte) (n int, err error) {
- if raceenabled {
- raceReleaseMerge(unsafe.Pointer(&ioSync))
- }
return Pwrite(fd, p, -1)
}
