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sys: FSP_FSVOL_DEVICE_EXTENSION::VolumeDeleteResource

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This commit is contained in:
Bill Zissimopoulos 2022-06-10 14:46:10 +01:00
parent 805742f306
commit 66f3620808
2 changed files with 42 additions and 10 deletions
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35
src/sys/driver.h
View File

@ -1283,6 +1283,41 @@ VOID FspDeviceDelete(PDEVICE_OBJECT DeviceObject);
BOOLEAN FspDeviceReference(PDEVICE_OBJECT DeviceObject);
VOID FspDeviceDereference(PDEVICE_OBJECT DeviceObject);
static inline
VOID FspFsvolDeviceVolumeDeleteAcquireShared(PDEVICE_OBJECT DeviceObject)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
ExAcquireResourceSharedLite(&FsvolDeviceExtension->VolumeDeleteResource, TRUE);
}
static inline
VOID FspFsvolDeviceVolumeDeleteAcquireExclusive(PDEVICE_OBJECT DeviceObject)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
ExAcquireResourceExclusiveLite(&FsvolDeviceExtension->VolumeDeleteResource, TRUE);
}
static inline
VOID FspFsvolDeviceVolumeDeleteSetOwner(PDEVICE_OBJECT DeviceObject, PVOID Owner)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
Owner = (PVOID)((UINT_PTR)Owner | 3);
ExSetResourceOwnerPointer(&FsvolDeviceExtension->VolumeDeleteResource, Owner);
}
static inline
VOID FspFsvolDeviceVolumeDeleteRelease(PDEVICE_OBJECT DeviceObject)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
ExReleaseResourceLite(&FsvolDeviceExtension->VolumeDeleteResource);
}
static inline
VOID FspFsvolDeviceVolumeDeleteReleaseOwner(PDEVICE_OBJECT DeviceObject, PVOID Owner)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
Owner = (PVOID)((UINT_PTR)Owner | 3);
if (ExIsResourceAcquiredLite(&FsvolDeviceExtension->VolumeDeleteResource))
ExReleaseResourceLite(&FsvolDeviceExtension->VolumeDeleteResource);
else
ExReleaseResourceForThreadLite(&FsvolDeviceExtension->VolumeDeleteResource, (ERESOURCE_THREAD)Owner);
}
static inline
VOID FspFsvolDeviceFileRenameAcquireShared(PDEVICE_OBJECT DeviceObject)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);

17
src/sys/volume.c
View File

@ -369,7 +369,7 @@ VOID FspVolumeDelete(
ULONG FileNodeCount, Index;
NTSTATUS Result;
ExAcquireResourceExclusiveLite(&FsvolDeviceExtension->VolumeDeleteResource, TRUE);
FspFsvolDeviceVolumeDeleteAcquireExclusive(FsvolDeviceObject);
FsvolDeviceExtension->VolumeDeleted = TRUE;
/*
@ -406,7 +406,7 @@ VOID FspVolumeDelete(
FspFileNodeDeleteList(FileNodes, FileNodeCount);
}
ExReleaseResourceLite(&FsvolDeviceExtension->VolumeDeleteResource);
FspFsvolDeviceVolumeDeleteRelease(FsvolDeviceObject);
FspDeviceDereference(FsvolDeviceObject);
}
@ -1189,9 +1189,8 @@ NTSTATUS FspVolumeNotify(
if (!FspDeviceReference(FsvolDeviceObject))
return STATUS_CANCELLED;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
ExAcquireResourceSharedLite(&FsvolDeviceExtension->VolumeDeleteResource, TRUE);
if (FsvolDeviceExtension->VolumeDeleted)
FspFsvolDeviceVolumeDeleteAcquireShared(FsvolDeviceObject);
if (FspFsvolDeviceExtension(FsvolDeviceObject)->VolumeDeleted)
{
Result = STATUS_CANCELLED;
goto fail;
@ -1218,8 +1217,7 @@ NTSTATUS FspVolumeNotify(
goto fail;
}
ExSetResourceOwnerPointer(&FsvolDeviceExtension->VolumeDeleteResource,
(PVOID)((UINT_PTR)NotifyWorkItem | 3));
FspFsvolDeviceVolumeDeleteSetOwner(FsvolDeviceObject, NotifyWorkItem);
ExInitializeWorkItem(&NotifyWorkItem->WorkItem, FspVolumeNotifyWork, NotifyWorkItem);
NotifyWorkItem->FsvolDeviceObject = FsvolDeviceObject;
@ -1232,7 +1230,7 @@ fail:
if (0 != NotifyWorkItem)
FspFree(NotifyWorkItem);
ExReleaseResourceLite(&FsvolDeviceExtension->VolumeDeleteResource);
FspFsvolDeviceVolumeDeleteRelease(FsvolDeviceObject);
FspDeviceDereference(FsvolDeviceObject);
@ -1383,8 +1381,7 @@ static VOID FspVolumeNotifyWork(PVOID NotifyWorkItem0)
ExReleaseFastMutex(&FsvolDeviceExtension->VolumeNotifyMutex);
}
ExReleaseResourceForThreadLite(&FsvolDeviceExtension->VolumeDeleteResource,
(ERESOURCE_THREAD)((UINT_PTR)NotifyWorkItem | 3));
FspFsvolDeviceVolumeDeleteReleaseOwner(FsvolDeviceObject, NotifyWorkItem);
FspDeviceDereference(FsvolDeviceObject);