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author | gVisor bot <gvisor-bot@google.com> | 2020-02-11 20:35:55 -0800 |
---|---|---|
committer | gVisor bot <gvisor-bot@google.com> | 2020-02-11 20:37:01 -0800 |
commit | 5205bc7e583f90e5a5855a69de26a0baa888cbdf (patch) | |
tree | f26d943f87cc586107a92065759591cb96444215 /pkg/sleep/commit_noasm.go | |
parent | 6dced977eab69401a114257e386addb9cb03a39d (diff) |
Simplify atomic operations
PiperOrigin-RevId: 294582802
Diffstat (limited to 'pkg/sleep/commit_noasm.go')
-rw-r--r-- | pkg/sleep/commit_noasm.go | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/pkg/sleep/commit_noasm.go b/pkg/sleep/commit_noasm.go index 3af447fb9..f59061f37 100644 --- a/pkg/sleep/commit_noasm.go +++ b/pkg/sleep/commit_noasm.go @@ -28,15 +28,6 @@ import "sync/atomic" // It is written in assembly because it is called from g0, so it doesn't have // a race context. func commitSleep(g uintptr, waitingG *uintptr) bool { - for { - // Check if the wait was aborted. - if atomic.LoadUintptr(waitingG) == 0 { - return false - } - - // Try to store the G so that wakers know who to wake. - if atomic.CompareAndSwapUintptr(waitingG, preparingG, g) { - return true - } - } + // Try to store the G so that wakers know who to wake. + return atomic.CompareAndSwapUintptr(waitingG, preparingG, g) } |