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sys: TopLevelIrp functionality

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This commit is contained in:
Bill Zissimopoulos
2016-03-02 12:19:48 -08:00
parent 5b4dd2bb26
commit 498af95e3b
4 changed files with 118 additions and 12 deletions
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9
src/sys/volume.c
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@ -534,6 +534,7 @@ NTSTATUS FspVolumeTransact(
FSP_FSCTL_TRANSACT_REQ *Request, *PendingIrpRequest;
PIRP ProcessIrp, PendingIrp, RetriedIrp, RepostedIrp;
LARGE_INTEGER Timeout;
PIRP TopLevelIrp = IoGetTopLevelIrp();
/* process any user-mode file system responses */
RepostedIrp = 0;
@ -557,6 +558,7 @@ NTSTATUS FspVolumeTransact(
ASSERT((UINT_PTR)ProcessIrp == (UINT_PTR)Response->Hint);
ASSERT(FspIrpRequest(ProcessIrp)->Hint == Response->Hint);
IoSetTopLevelIrp(ProcessIrp);
Result = FspIopDispatchComplete(ProcessIrp, Response);
if (STATUS_PENDING == Result)
{
@ -579,6 +581,7 @@ NTSTATUS FspVolumeTransact(
if (0 == RetriedIrp)
break;
IoSetTopLevelIrp(RetriedIrp);
Response = FspIopIrpResponse(RetriedIrp);
Result = FspIopDispatchComplete(RetriedIrp, Response);
if (STATUS_PENDING == Result)
@ -642,6 +645,7 @@ NTSTATUS FspVolumeTransact(
{
PendingIrpRequest = FspIrpRequest(PendingIrp);
IoSetTopLevelIrp(PendingIrp);
Result = FspIopDispatchPrepare(PendingIrp, PendingIrpRequest);
if (STATUS_PENDING == Result)
{
@ -692,6 +696,7 @@ NTSTATUS FspVolumeTransact(
Result = STATUS_SUCCESS;
exit:
IoSetTopLevelIrp(TopLevelIrp);
FspDeviceDereference(FsvolDeviceObject);
return Result;
}
@ -737,7 +742,7 @@ NTSTATUS FspVolumeWork(
/* associate the passed Request with our Irp; acquire ownership of the Request */
Request->Hint = (UINT_PTR)Irp;
FspIrpRequest(Irp) = Request;
FspIrpSetRequest(Irp, Request);
/*
* Post the IRP to our Ioq; we do this here instead of at FSP_LEAVE_MJ time,
@ -747,7 +752,7 @@ NTSTATUS FspVolumeWork(
if (!FspIoqPostIrpEx(FsvolDeviceExtension->Ioq, Irp, BestEffort, &Result))
{
Request->Hint = 0;
FspIrpRequest(Irp) = 0;
FspIrpSetRequest(Irp, 0);
}
DEBUGLOG("%s(Irp=%p) = %s",