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| author | Cuong Manh Le <cuong.manhle.vn@gmail.com> | 2022-08-17 14:13:06 +0700 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2022-08-17 16:26:22 +0000 |
| commit | 5b0ce94c07524f910278de1d90e31c5bc0805bbd (patch) | |
| tree | c2d8f86030d0eacdcbfd2248d66b0121bef458f7 /src/runtime/stack.go | |
| parent | ea6cb02ae54fcf89026a2178720396f1277dd105 (diff) | |
| download | go-5b0ce94c07524f910278de1d90e31c5bc0805bbd.tar.xz | |
runtime: convert g.parkingOnChan to atomic type
Updates #53821
Change-Id: I54de39b984984fb3c160aba5afacb90131fd47c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/424394
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Diffstat (limited to 'src/runtime/stack.go')
| -rw-r--r-- | src/runtime/stack.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/runtime/stack.go b/src/runtime/stack.go index 2a7f0bd1c3..0bfa9320e0 100644 --- a/src/runtime/stack.go +++ b/src/runtime/stack.go @@ -886,7 +886,7 @@ func copystack(gp *g, newsize uintptr) { // Adjust sudogs, synchronizing with channel ops if necessary. ncopy := used if !gp.activeStackChans { - if newsize < old.hi-old.lo && atomic.Load8(&gp.parkingOnChan) != 0 { + if newsize < old.hi-old.lo && gp.parkingOnChan.Load() { // It's not safe for someone to shrink this stack while we're actively // parking on a channel, but it is safe to grow since we do that // ourselves and explicitly don't want to synchronize with channels @@ -1150,7 +1150,7 @@ func isShrinkStackSafe(gp *g) bool { // We also can't *shrink* the stack in the window between the // goroutine calling gopark to park on a channel and // gp.activeStackChans being set. - return gp.syscallsp == 0 && !gp.asyncSafePoint && atomic.Load8(&gp.parkingOnChan) == 0 + return gp.syscallsp == 0 && !gp.asyncSafePoint && !gp.parkingOnChan.Load() } // Maybe shrink the stack being used by gp. |