runtime: move m.thread to mOS

This field is only used on Windows. Change-Id: I12d4df09261f8e7ad54c2abd7beda669af28c8e7 Reviewed-on: https://go-review.googlesource.com/c/go/+/207778 Run-TryBot: Austin Clements <[email protected]> TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Brad Fitzpatrick <[email protected]> Reviewed-by: Cherry Zhang <[email protected]> Reviewed-by: Alex Brainman <[email protected]>
philpearl · Nov 20, 2019 · 91bb1d7 · 91bb1d7
1 parent 9c6f640
commit 91bb1d7
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/src/runtime/os_windows.go b/src/runtime/os_windows.go
@@ -143,6 +143,8 @@ func tstart_stdcall(newm *m)
 func ctrlhandler()
 
 type mOS struct {
+	thread uintptr // thread handle; accessed atomically
+
 	waitsema   uintptr // semaphore for parking on locks
 	resumesema uintptr // semaphore to indicate suspend/resume
 }

diff --git a/src/runtime/runtime2.go b/src/runtime/runtime2.go
@@ -522,8 +522,7 @@ type m struct {
 	waittraceskip int
 	startingtrace bool
 	syscalltick   uint32
-	thread        uintptr // thread handle
-	freelink      *m      // on sched.freem
+	freelink      *m // on sched.freem
 
 	// these are here because they are too large to be on the stack
 	// of low-level NOSPLIT functions.