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-rw-r--r--src/context/context.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/context/context.go b/src/context/context.go
index 0f36881b1e..05d01d0294 100644
--- a/src/context/context.go
+++ b/src/context/context.go
@@ -220,6 +220,7 @@ func TODO() Context {
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
+// A CancelFunc may be called by multiple goroutines simultaneously.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc func()