runtime: reduce one STW when obtaining goroutine configuration file
Fixes #54014
Change-Id: If4ee2752008729e1ed4b767cfda52effdcec4959
GitHub-Last-Rev:
5ce300bf5128f842604d85d5f8749027c8e091c2
GitHub-Pull-Request: golang/go#58239
Reviewed-on: https://go-review.googlesource.com/c/go/+/464349
Reviewed-by: qiulaidongfeng <2645477756@qq.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: qiulaidongfeng <
2645477756@qq.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>