Merge 6ad6f6a70e into 49cdf0c42e

cmd/go: modload should use a read-write lock to improve concurrency
2025-06-22 12:31:03 +00:00 · 2025-06-22 13:30:56 +01:00
1 changed files with 3 additions and 3 deletions
--- a/src/cmd/go/internal/modload/init.go
+++ b/src/cmd/go/internal/modload/init.go
@ -149,7 +149,7 @@ type MainModuleSet struct {
 	// highest replaced version of each module path; empty string for wildcard-only replacements
 	highestReplaced map[string]string

-	indexMu sync.Mutex
+	indexMu sync.RWMutex
 	indices map[module.Version]*modFileIndex
 }

@ -228,8 +228,8 @@ func (mms *MainModuleSet) GetSingleIndexOrNil() *modFileIndex {
 }

 func (mms *MainModuleSet) Index(m module.Version) *modFileIndex {
-	mms.indexMu.Lock()
-	defer mms.indexMu.Unlock()
+	mms.indexMu.RLock()
+	defer mms.indexMu.RUnlock()
 	return mms.indices[m]
 }
Author	SHA1	Message	Date
Roy Reznik	e339cf8ea8	Merge `6ad6f6a70e` into `49cdf0c42e`	2025-06-22 12:31:03 +00:00
Roy Reznik	6ad6f6a70e	cmd/go: modload should use a read-write lock to improve concurrency	2025-06-22 13:30:56 +01:00