From aa14a2c1be7f705927e9558f0e46ceca159e23e6 Mon Sep 17 00:00:00 2001
From: Zhaozhong Ni <nzz@google.com>
Date: Tue, 19 Jun 2018 16:07:08 -0700
Subject: sentry: futex S/R optimization.

No need to save thousands of zerovalue buckets.

PiperOrigin-RevId: 201258598
Change-Id: I5d3ea7b6a5345117ab4f610332d5288ca550be33
---
 pkg/sentry/kernel/futex/futex.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'pkg/sentry/kernel/futex')

diff --git a/pkg/sentry/kernel/futex/futex.go b/pkg/sentry/kernel/futex/futex.go
index b3ba57a2c..15e3e5e2c 100644
--- a/pkg/sentry/kernel/futex/futex.go
+++ b/pkg/sentry/kernel/futex/futex.go
@@ -197,7 +197,7 @@ func bucketIndexForAddr(addr uintptr) uintptr {
 
 // Manager holds futex state for a single virtual address space.
 type Manager struct {
-	buckets [bucketCount]bucket
+	buckets [bucketCount]bucket `state:"zerovalue"`
 }
 
 // NewManager returns an initialized futex manager.
-- 
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