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runtime: eliminate gcBlackenPromptly mode

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Now that there is no mark 2 phase, gcBlackenPromptly is no longer
used.

Updates #26903. This is a follow-up to eliminating mark 2.

Change-Id: Ib9c534f21b36b8416fcf3cab667f186167b827f8
Reviewed-on: https://go-review.googlesource.com/c/134319
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
This commit is contained in:
Austin Clements 2018-08-09 15:25:10 -04:00
parent 9108ae7751
commit d398dbdfc3
6 changed files with 5 additions and 54 deletions
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3
src/runtime/stack.go
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@ -981,9 +981,6 @@ func newstack() {
// system stack.
gcw := &gp.m.p.ptr().gcw
scanstack(gp, gcw)
if gcBlackenPromptly {
gcw.dispose()
}
gp.gcscandone = true
}
gp.preemptscan = false