From: Austin Clements <austin@google.com>
Date: Tue, 17 Mar 2015 19:31:11 +0000 (-0400)
Subject: runtime: improve comment in concurrent GC
X-Git-Tag: go1.5beta1~1521
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=bef356b28281b8ff4a585d857a881783926cabb1;p=gostls13.git

runtime: improve comment in concurrent GC

"Sync" is not very informative. What's being synchronized and with
whom? Update this comment to explain what we're really doing: enabling
write barriers.

Change-Id: I4f0cbb8771988c7ba4606d566b77c26c64165f0f
Reviewed-on: https://go-review.googlesource.com/7700
Reviewed-by: Rick Hudson <rlh@golang.org>
---

diff --git a/src/runtime/mgc.go b/src/runtime/mgc.go
index 0b15a8500d..d19606bba7 100644
--- a/src/runtime/mgc.go
+++ b/src/runtime/mgc.go
@@ -333,7 +333,7 @@ func gc(mode int) {
 			gcscan_m()
 			gctimer.cycle.installmarkwb = nanotime()
 
-			// Sync.
+			// Enter mark phase and enable write barriers.
 			stoptheworld()
 			gcphase = _GCmark