diff options
Diffstat (limited to 'pkg/sync/rwmutex_unsafe.go')
| -rw-r--r-- | pkg/sync/rwmutex_unsafe.go | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/pkg/sync/rwmutex_unsafe.go b/pkg/sync/rwmutex_unsafe.go index b3b4dee78..fa023f5bb 100644 --- a/pkg/sync/rwmutex_unsafe.go +++ b/pkg/sync/rwmutex_unsafe.go @@ -32,7 +32,12 @@ func runtimeSemrelease(s *uint32, handoff bool, skipframes int) // RWMutex is identical to sync.RWMutex, but adds the DowngradeLock, // TryLock and TryRLock methods. type RWMutex struct { - w Mutex // held if there are pending writers + // w is held if there are pending writers + // + // We use CrossGoroutineMutex rather than Mutex because the lock + // annotation instrumentation in Mutex will trigger false positives in + // the race detector when called inside of RaceDisable. + w CrossGoroutineMutex writerSem uint32 // semaphore for writers to wait for completing readers readerSem uint32 // semaphore for readers to wait for completing writers readerCount int32 // number of pending readers |