[pschweitzer] 34427: Attempt on block.c to switch Ext3Fsd to PSEH Thanks to hackbunny ; )
11 Jul
2008
11 Jul
'08
8:50 p.m.
Author: pschweitzer
Date: Fri Jul 11 15:50:43 2008
New Revision: 34427
URL: http://svn.reactos.org/svn/reactos?rev=34427&view=rev
Log:
Attempt on block.c to switch Ext3Fsd to PSEH
Thanks to hackbunny ;)
Modified:
branches/pierre-fsd/drivers/filesystems/ext3fsd/block.c
Modified: branches/pierre-fsd/drivers/filesystems/ext3fsd/block.c
URL:
http://svn.reactos.org/svn/reactos/branches/pierre-fsd/drivers/filesystems/…
==============================================================================
--- branches/pierre-fsd/drivers/filesystems/ext3fsd/block.c [iso-8859-1] (original)
+++ branches/pierre-fsd/drivers/filesystems/ext3fsd/block.c [iso-8859-1] Fri Jul 11
15:50:43 2008
@@ -29,6 +29,20 @@
IN PIRP Irp,
IN PVOID Context );
+VOID
+Ext2ReadWriteBlocksFinal (
+ IN BOOLEAN Termination,
+ IN PEXT2_IRP_CONTEXT IrpContext,
+ IN PEXT2_EXTENT Chain,
+ IN PIRP MasterIrp,
+ IN PNTSTATUS pStatus,
+ IN PEXT2_RW_CONTEXT pContext,
+ IN BOOLEAN bBugCheck,
+ IN PEXT2_EXTENT Extent );
+
+VOID
+Ext2ReadSyncFinal (
+ IN PKEVENT Event );
NTSTATUS
Ext2MediaEjectControlCompletion (
@@ -68,18 +82,18 @@
return STATUS_INSUFFICIENT_RESOURCES;
}
- __try {
+ _SEH_TRY {
MmProbeAndLockPages(Irp->MdlAddress, Irp->RequestorMode, Operation);
Status = STATUS_SUCCESS;
- } __except (EXCEPTION_EXECUTE_HANDLER) {
+ } _SEH_HANDLE {
DbgBreak();
IoFreeMdl(Irp->MdlAddress);
Irp->MdlAddress = NULL;
Status = STATUS_INVALID_USER_BUFFER;
- }
+ } _SEH_END;
return Status;
}
@@ -182,6 +196,74 @@
return STATUS_SUCCESS;
}
+_SEH_DEFINE_LOCALS(Ext2ReadWriteBlocksFinal)
+{
+ IN PEXT2_IRP_CONTEXT IrpContext;
+ PEXT2_EXTENT Chain;
+ PIRP MasterIrp;
+ PNTSTATUS pStatus;
+ PEXT2_RW_CONTEXT pContext;
+ BOOLEAN bBugCheck;
+ PEXT2_EXTENT Extent;
+};
+
+_SEH_FINALLYFUNC(Ext2ReadWriteBlocksFinal_PSEH)
+{
+ _SEH_ACCESS_LOCALS(Ext2ReadWriteBlocksFinal);
+ Ext2ReadWriteBlocksFinal(_SEH_AbnormalTermination(), _SEH_VAR(IrpContext),
+ _SEH_VAR(Chain), _SEH_VAR(MasterIrp),
+ _SEH_VAR(pStatus), _SEH_VAR(pContext),
+ _SEH_VAR(bBugCheck), _SEH_VAR(Extent));
+}
+
+VOID
+Ext2ReadWriteBlocksFinal (
+ IN BOOLEAN Termination,
+ IN PEXT2_IRP_CONTEXT IrpContext,
+ IN PEXT2_EXTENT Chain,
+ IN PIRP MasterIrp,
+ IN PNTSTATUS pStatus,
+ IN PEXT2_RW_CONTEXT pContext,
+ IN BOOLEAN bBugCheck,
+ IN PEXT2_EXTENT Extent )
+{
+ if (Termination) {
+
+ if (bBugCheck) {
+ Ext2BugCheck(EXT2_BUGCHK_BLOCK, 0, 0, 0);
+ }
+
+ for (Extent = Chain; Extent != NULL; Extent = Extent->Next) {
+ if (Extent->Irp != NULL ) {
+ if (Extent->Irp->MdlAddress != NULL) {
+ IoFreeMdl(Extent->Irp->MdlAddress );
+ }
+ IoFreeIrp(Extent->Irp);
+ }
+ }
+
+ if (pContext) {
+ ExFreePoolWithTag(pContext, EXT2_RWC_MAGIC);
+ DEC_MEM_COUNT(PS_RW_CONTEXT, pContext, sizeof(EXT2_RW_CONTEXT));
+ }
+
+ } else {
+
+ if (IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)) {
+ if (MasterIrp) {
+ *pStatus = MasterIrp->IoStatus.Status;
+ }
+ if (pContext) {
+ ExFreePoolWithTag(pContext, EXT2_RWC_MAGIC);
+ DEC_MEM_COUNT(PS_RW_CONTEXT, pContext, sizeof(EXT2_RW_CONTEXT));
+ }
+ } else {
+ IrpContext->Irp = NULL;
+ *pStatus = STATUS_PENDING;
+ }
+ }
+}
+
NTSTATUS
Ext2ReadWriteBlocks(
IN PEXT2_IRP_CONTEXT IrpContext,
@@ -196,19 +278,28 @@
PIO_STACK_LOCATION IrpSp;
NTSTATUS Status = STATUS_SUCCESS;
PEXT2_RW_CONTEXT pContext = NULL;
- BOOLEAN bBugCheck = FALSE;
PEXT2_EXTENT Extent;
ASSERT(MasterIrp);
- __try {
+ _SEH_TRY {
+
+ _SEH_DECLARE_LOCALS(Ext2ReadWriteBlocksFinal);
+ _SEH_VAR(IrpContext) = IrpContext;
+ _SEH_VAR(Chain) = Chain;
+ _SEH_VAR(MasterIrp) = IrpContext->Irp;
+ _SEH_VAR(pStatus) = &Status;
+ _SEH_VAR(pContext) = NULL;
+ _SEH_VAR(bBugCheck) = FALSE;
+ _SEH_VAR(Extent) = Extent;
pContext = ExAllocatePoolWithTag(NonPagedPool, sizeof(EXT2_RW_CONTEXT),
EXT2_RWC_MAGIC);
+ _SEH_VAR(pContext) = pContext;
if (!pContext) {
DEBUG(DL_ERR, ( "Ex2ReadWriteBlocks: failed to allocate
pContext.\n"));
Status = STATUS_INSUFFICIENT_RESOURCES;
- __leave;
+ _SEH_LEAVE;
}
INC_MEM_COUNT(PS_RW_CONTEXT, pContext, sizeof(EXT2_RW_CONTEXT));
@@ -237,7 +328,7 @@
pContext->ThreadId = ExGetCurrentResourceThread();
}
- for (Extent = Chain; Extent != NULL; Extent = Extent->Next) {
+ for (_SEH_VAR(Extent) = Chain; _SEH_VAR(Extent) != NULL; _SEH_VAR(Extent) =
_SEH_VAR(Extent)->Next) {
Irp = IoMakeAssociatedIrp(
MasterIrp,
@@ -245,32 +336,32 @@
if (!Irp) {
Status = STATUS_INSUFFICIENT_RESOURCES;
- __leave;
+ _SEH_LEAVE;
}
Mdl = IoAllocateMdl( (PCHAR)MasterIrp->UserBuffer +
- Extent->Offset,
- Extent->Length,
+ _SEH_VAR(Extent)->Offset,
+ _SEH_VAR(Extent)->Length,
FALSE,
FALSE,
Irp );
if (!Mdl) {
Status = STATUS_INSUFFICIENT_RESOURCES;
- __leave;
+ _SEH_LEAVE;
}
IoBuildPartialMdl( MasterIrp->MdlAddress,
Mdl,
- (PCHAR)MasterIrp->UserBuffer +Extent->Offset,
- Extent->Length );
+ (PCHAR)MasterIrp->UserBuffer +_SEH_VAR(Extent)->Offset,
+ _SEH_VAR(Extent)->Length );
IoSetNextIrpStackLocation( Irp );
IrpSp = IoGetCurrentIrpStackLocation( Irp );
IrpSp->MajorFunction = IrpContext->MajorFunction;
- IrpSp->Parameters.Read.Length = Extent->Length;
- IrpSp->Parameters.Read.ByteOffset.QuadPart = Extent->Lba;
+ IrpSp->Parameters.Read.Length = _SEH_VAR(Extent)->Length;
+ IrpSp->Parameters.Read.ByteOffset.QuadPart = _SEH_VAR(Extent)->Lba;
IoSetCompletionRoutine(
Irp,
@@ -285,14 +376,14 @@
IrpSp = IoGetNextIrpStackLocation( Irp );
IrpSp->MajorFunction = IrpContext->MajorFunction;
- IrpSp->Parameters.Read.Length =Extent->Length;
- IrpSp->Parameters.Read.ByteOffset.QuadPart = Extent->Lba;
+ IrpSp->Parameters.Read.Length = _SEH_VAR(Extent)->Length;
+ IrpSp->Parameters.Read.ByteOffset.QuadPart = _SEH_VAR(Extent)->Lba;
if (bVerify) {
SetFlag( IrpSp->Flags, SL_OVERRIDE_VERIFY_VOLUME );
}
- Extent->Irp = Irp;
+ _SEH_VAR(Extent)->Irp = Irp;
pContext->Blocks += 1;
}
@@ -302,11 +393,11 @@
MasterIrp->AssociatedIrp.IrpCount += 1;
}
- bBugCheck = TRUE;
-
- for (Extent = Chain; Extent != NULL; Extent = Extent->Next) {
+ _SEH_VAR(bBugCheck) = TRUE;
+
+ for (_SEH_VAR(Extent) = Chain; _SEH_VAR(Extent) != NULL; _SEH_VAR(Extent) =
_SEH_VAR(Extent)->Next) {
Status = IoCallDriver ( Vcb->TargetDeviceObject,
- Extent->Irp);
+ _SEH_VAR(Extent)->Irp);
}
if (IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)) {
@@ -316,46 +407,33 @@
KeClearEvent( &(pContext->Event) );
}
- } __finally {
-
- if (AbnormalTermination()) {
-
- if (bBugCheck) {
- Ext2BugCheck(EXT2_BUGCHK_BLOCK, 0, 0, 0);
- }
-
- for (Extent = Chain; Extent != NULL; Extent = Extent->Next) {
- if (Extent->Irp != NULL ) {
- if (Extent->Irp->MdlAddress != NULL) {
- IoFreeMdl(Extent->Irp->MdlAddress );
- }
- IoFreeIrp(Extent->Irp);
- }
- }
-
- if (pContext) {
- ExFreePoolWithTag(pContext, EXT2_RWC_MAGIC);
- DEC_MEM_COUNT(PS_RW_CONTEXT, pContext, sizeof(EXT2_RW_CONTEXT));
- }
-
- } else {
-
- if (IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT)) {
- if (MasterIrp) {
- Status = MasterIrp->IoStatus.Status;
- }
- if (pContext) {
- ExFreePoolWithTag(pContext, EXT2_RWC_MAGIC);
- DEC_MEM_COUNT(PS_RW_CONTEXT, pContext, sizeof(EXT2_RW_CONTEXT));
- }
- } else {
- IrpContext->Irp = NULL;
- Status = STATUS_PENDING;
- }
- }
- }
+ }
+ _SEH_FINALLY(Ext2ReadWriteBlocksFinal_PSEH)
+ _SEH_END;
return Status;
+}
+
+_SEH_DEFINE_LOCALS(Ext2ReadSyncFinal)
+{
+ PKEVENT Event;
+};
+
+_SEH_FINALLYFUNC(Ext2ReadSyncFinal_PSEH)
+{
+ _SEH_ACCESS_LOCALS(Ext2ReadSyncFinal);
+ Ext2ReadSyncFinal(_SEH_VAR(Event));
+}
+
+VOID
+Ext2ReadSyncFinal (
+ IN PKEVENT Event
+ )
+{
+ if (Event) {
+ ExFreePoolWithTag(Event, TAG('E', 'K', '2',
'E'));
+ DEC_MEM_COUNT(PS_DISK_EVENT, Event, sizeof(KEVENT));
+ }
}
NTSTATUS
@@ -378,13 +456,13 @@
ASSERT(Vcb->TargetDeviceObject != NULL);
ASSERT(Buffer != NULL);
- __try {
-
- Event = ExAllocatePoolWithTag(NonPagedPool, sizeof(KEVENT), 'EK2E');
+ _SEH_TRY {
+
+ Event = ExAllocatePoolWithTag(NonPagedPool, sizeof(KEVENT), TAG('E',
'K', '2', 'E'));
if (NULL == Event) {
DEBUG(DL_ERR, ( "Ex2ReadSync: failed to allocate Event.\n"));
- __leave;
+ _SEH_LEAVE;
}
INC_MEM_COUNT(PS_DISK_EVENT, Event, sizeof(KEVENT));
@@ -403,7 +481,7 @@
if (!Irp) {
Status = STATUS_INSUFFICIENT_RESOURCES;
- __leave;
+ _SEH_LEAVE;
}
if (bVerify) {
@@ -425,13 +503,9 @@
Status = IoStatus.Status;
}
- } __finally {
-
- if (Event) {
- ExFreePoolWithTag(Event, 'EK2E');
- DEC_MEM_COUNT(PS_DISK_EVENT, Event, sizeof(KEVENT));
- }
- }
+ }
+ _SEH_FINALLY(Ext2ReadSyncFinal_PSEH)
+ _SEH_END;
return Status;
}
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