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sys: IRP_MJ_READ, IRP_MJ_WRITE: do not block user-mode file system thread for FlushAndPurge

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This commit is contained in:
Bill Zissimopoulos
2016-03-17 14:16:22 -07:00
parent 15f39c3ca8
commit b44c6d64db
3 changed files with 110 additions and 92 deletions
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21
src/sys/wq.c
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@ -67,6 +67,7 @@ static VOID FspWqWorkRoutine(PVOID Context)
{
PIRP Irp = Context;
PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
PDEVICE_OBJECT DeviceObject = IrpSp->DeviceObject;
FSP_FSCTL_TRANSACT_REQ *RequestWorkItem = FspIrpRequest(Irp);
FSP_WQ_REQUEST_WORK *WorkRoutine = (FSP_WQ_REQUEST_WORK *)(UINT_PTR)
FspIopRequestContext(RequestWorkItem, FspWqRequestWorkRoutine);
@ -74,11 +75,27 @@ static VOID FspWqWorkRoutine(PVOID Context)
IoSetTopLevelIrp(Irp);
Result = WorkRoutine(IrpSp->DeviceObject, Irp, IrpSp, TRUE);
Result = WorkRoutine(DeviceObject, Irp, IrpSp, TRUE);
if (STATUS_PENDING != Result)
{
ASSERT(0 == (FSP_STATUS_PRIVATE_BIT & Result) ||
FSP_STATUS_IOQ_POST == Result || FSP_STATUS_IOQ_POST_BEST_EFFORT == Result);
DEBUGLOGIRP(Irp, Result);
FspIopCompleteIrp(Irp, Result);
if (FSP_STATUS_PRIVATE_BIT & Result)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension =
FspFsvolDeviceExtension(DeviceObject);
if (!FspIoqPostIrpEx(FsvolDeviceExtension->Ioq, Irp,
FSP_STATUS_IOQ_POST_BEST_EFFORT == Result, &Result))
{
DEBUGLOG("FspIoqPostIrpEx = %s", NtStatusSym(Result));
FspIopCompleteIrp(Irp, Result);
}
}
else
FspIopCompleteIrp(Irp, Result);
}
IoSetTopLevelIrp(0);