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61b2a2f5 · Kirill Smelkov · f7396071 · 61b2a2f5
Commit 61b2a2f5 authored Jul 02, 2019 by Kirill Smelkov
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wcfs/wcfs.go wcfs/wcfs.go +3 -1

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--- a/wcfs/wcfs.go
+++ b/wcfs/wcfs.go
@@ -756,7 +756,9 @@ retry:
 		head.pauseOSCacheUpload = true
 		head.continueOSCacheUpload = continueOSCacheUpload
-		if head.inflightOSCacheUploads != 0 {
+		// NOTE need atomic load, since inflightOSCacheUploads
+		// decrement is done not under zheadMu.
+		if atomic.LoadInt32(&head.inflightOSCacheUploads) != 0 {
 			head.zheadMu.Unlock()
 			continue retry
 		}