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sys: create: oplocks WIP

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This commit is contained in:
Bill Zissimopoulos 2016-11-11 17:58:57 -08:00
parent 6ba6e16851
commit 69935525da
1 changed files with 23 additions and 18 deletions
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41
src/sys/create.c
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@ -35,14 +35,14 @@ static VOID FspFsvolCreatePostClose(FSP_FILE_DESC *FileDesc);
static FSP_IOP_REQUEST_FINI FspFsvolCreateRequestFini;
static FSP_IOP_REQUEST_FINI FspFsvolCreateTryOpenRequestFini;
static FSP_IOP_REQUEST_FINI FspFsvolCreateOverwriteRequestFini;
static NTSTATUS FspFsvolCreateSharingViolationCheckOplock(
static NTSTATUS FspFsvolCreateSharingViolationOplock(
PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp,
BOOLEAN CanWait);
static BOOLEAN FspFsvolCreateCheckOplock(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Response,
static BOOLEAN FspFsvolCreateOpenOrOverwiteOplock(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Response,
PNTSTATUS PResult);
static VOID FspFsvolCreateCheckOplockPrepare(
static VOID FspFsvolCreateOpenOrOverwiteOplockPrepare(
PVOID Context, PIRP Irp);
static VOID FspFsvolCreateCheckOplockComplete(
static VOID FspFsvolCreateOpenOrOverwiteOplockComplete(
PVOID Context, PIRP Irp);
FSP_DRIVER_DISPATCH FspCreate;
@ -58,10 +58,10 @@ FSP_DRIVER_DISPATCH FspCreate;
#pragma alloc_text(PAGE, FspFsvolCreateRequestFini)
#pragma alloc_text(PAGE, FspFsvolCreateTryOpenRequestFini)
#pragma alloc_text(PAGE, FspFsvolCreateOverwriteRequestFini)
#pragma alloc_text(PAGE, FspFsvolCreateSharingViolationCheckOplock)
#pragma alloc_text(PAGE, FspFsvolCreateCheckOplock)
#pragma alloc_text(PAGE, FspFsvolCreateCheckOplockPrepare)
#pragma alloc_text(PAGE, FspFsvolCreateCheckOplockComplete)
#pragma alloc_text(PAGE, FspFsvolCreateSharingViolationOplock)
#pragma alloc_text(PAGE, FspFsvolCreateOpenOrOverwiteOplock)
#pragma alloc_text(PAGE, FspFsvolCreateOpenOrOverwiteOplockPrepare)
#pragma alloc_text(PAGE, FspFsvolCreateOpenOrOverwiteOplockComplete)
#pragma alloc_text(PAGE, FspCreate)
#endif
@ -588,7 +588,7 @@ NTSTATUS FspFsvolCreatePrepare(
Result = STATUS_SUCCESS;
Success = DEBUGTEST(90) &&
FspFileNodeTryAcquireExclusive(FileNode, Full) &&
FspFsvolCreateCheckOplock(Irp, 0, &Result);
FspFsvolCreateOpenOrOverwiteOplock(Irp, 0, &Result);
if (!Success)
{
if (!NT_SUCCESS(Result) || STATUS_PENDING == Result)
@ -846,7 +846,7 @@ NTSTATUS FspFsvolCreateComplete(
FspIopRequestContext(Request, FspIopRequestExtraContext) = FileNode;
Irp->IoStatus.Information = 0;
Result = FspFsvolCreateSharingViolationCheckOplock(
Result = FspFsvolCreateSharingViolationOplock(
FsvolDeviceObject, Irp, IrpSp, FALSE);
FSP_RETURN();
@ -1020,7 +1020,7 @@ static NTSTATUS FspFsvolCreateTryOpen(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Re
Result = STATUS_SUCCESS;
Success = DEBUGTEST(90) &&
FspFileNodeTryAcquireExclusive(FileNode, Main) &&
FspFsvolCreateCheckOplock(Irp, Response, &Result);
FspFsvolCreateOpenOrOverwiteOplock(Irp, Response, &Result);
if (!Success)
{
if (!NT_SUCCESS(Result) || STATUS_PENDING == Result)
@ -1198,7 +1198,7 @@ static VOID FspFsvolCreateOverwriteRequestFini(FSP_FSCTL_TRANSACT_REQ *Request,
FspFsvolDeviceFileRenameReleaseOwner(FsvolDeviceObject, Request);
}
static NTSTATUS FspFsvolCreateSharingViolationCheckOplock(
static NTSTATUS FspFsvolCreateSharingViolationOplock(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp,
BOOLEAN CanWait)
{
@ -1240,7 +1240,7 @@ static NTSTATUS FspFsvolCreateSharingViolationCheckOplock(
FspFileNodeTryAcquireSharedF(FileNode, FspFileNodeAcquireMain, CanWait);
if (!Success)
return FspWqRepostIrpWorkItem(Irp,
FspFsvolCreateSharingViolationCheckOplock, FspFsvolCreateRequestFini);
FspFsvolCreateSharingViolationOplock, FspFsvolCreateRequestFini);
if (!CanWait)
{
@ -1256,7 +1256,7 @@ static NTSTATUS FspFsvolCreateSharingViolationCheckOplock(
if (!Success)
return FspWqRepostIrpWorkItem(Irp,
FspFsvolCreateSharingViolationCheckOplock, FspFsvolCreateRequestFini);
FspFsvolCreateSharingViolationOplock, FspFsvolCreateRequestFini);
return STATUS_SHARING_VIOLATION;
}
@ -1312,7 +1312,7 @@ static NTSTATUS FspFsvolCreateSharingViolationCheckOplock(
}
}
static BOOLEAN FspFsvolCreateCheckOplock(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Response,
static BOOLEAN FspFsvolCreateOpenOrOverwiteOplock(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Response,
PNTSTATUS PResult)
{
PAGED_CODE();
@ -1351,7 +1351,9 @@ static BOOLEAN FspFsvolCreateCheckOplock(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP
if (CheckOplock)
{
Result = FspCheckOplock(FspFileNodeAddrOfOplock(FileNode), Irp,
(PVOID)Response, FspFsvolCreateCheckOplockComplete, FspFsvolCreateCheckOplockPrepare);
(PVOID)Response,
FspFsvolCreateOpenOrOverwiteOplockComplete,
FspFsvolCreateOpenOrOverwiteOplockPrepare);
if (STATUS_PENDING == Result)
{
*PResult = Result;
@ -1360,7 +1362,10 @@ static BOOLEAN FspFsvolCreateCheckOplock(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP
}
if (OpenRequiringOplock && STATUS_SUCCESS == Result)
{
Result = FspOplockFsctrlCreate(FspFileNodeAddrOfOplock(FileNode), Irp, OplockCount);
ASSERT(STATUS_PENDING != Result);
}
if (STATUS_SUCCESS != Result &&
STATUS_OPLOCK_BREAK_IN_PROGRESS != Result)
@ -1373,7 +1378,7 @@ static BOOLEAN FspFsvolCreateCheckOplock(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP
return TRUE;
}
static VOID FspFsvolCreateCheckOplockPrepare(
static VOID FspFsvolCreateOpenOrOverwiteOplockPrepare(
PVOID Context, PIRP Irp)
{
PAGED_CODE();
@ -1382,7 +1387,7 @@ static VOID FspFsvolCreateCheckOplockPrepare(
FspIopSetIrpResponse(Irp, Context);
}
static VOID FspFsvolCreateCheckOplockComplete(
static VOID FspFsvolCreateOpenOrOverwiteOplockComplete(
PVOID Context, PIRP Irp)
{
PAGED_CODE();