diff --git a/ntoskrnl/cc/copy.c b/ntoskrnl/cc/copy.c index 7b43ab51e60..e01f2b46865 100644 --- a/ntoskrnl/cc/copy.c +++ b/ntoskrnl/cc/copy.c @@ -400,6 +400,16 @@ CcCanIWrite ( return FALSE; } + /* Otherwise, if there are no deferred writes yet, start the lazy writer */ + if (IsListEmpty(&CcDeferredWrites)) + { + KIRQL OldIrql; + + OldIrql = KeAcquireQueuedSpinLock(LockQueueMasterLock); + CcScheduleLazyWriteScan(TRUE); + KeReleaseQueuedSpinLock(LockQueueMasterLock, OldIrql); + } + /* Initialize our wait event */ KeInitializeEvent(&WaitEvent, NotificationEvent, FALSE); @@ -427,12 +437,6 @@ CcCanIWrite ( &CcDeferredWriteSpinLock); } - /* Now make sure that the lazy scan writer will be active */ - OldIrql = KeAcquireQueuedSpinLock(LockQueueMasterLock); - if (!LazyWriter.ScanActive) - CcScheduleLazyWriteScan(TRUE); - KeReleaseQueuedSpinLock(LockQueueMasterLock, OldIrql); - #if DBG DPRINT1("Actively deferring write for: %p\n", FileObject); DPRINT1("Because:\n");