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sys: FspFsvolDeviceLockVolumeNotify

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This commit is contained in:
Bill Zissimopoulos 2022-06-10 15:15:49 +01:00
parent 66f3620808
commit 2e441534a3
2 changed files with 18 additions and 6 deletions
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12
src/sys/driver.h
View File

@ -1398,6 +1398,18 @@ VOID FspFsvolDeviceGetVolumeInfo(PDEVICE_OBJECT DeviceObject, FSP_FSCTL_VOLUME_I
BOOLEAN FspFsvolDeviceTryGetVolumeInfo(PDEVICE_OBJECT DeviceObject, FSP_FSCTL_VOLUME_INFO *VolumeInfo);
VOID FspFsvolDeviceSetVolumeInfo(PDEVICE_OBJECT DeviceObject, const FSP_FSCTL_VOLUME_INFO *VolumeInfo);
VOID FspFsvolDeviceInvalidateVolumeInfo(PDEVICE_OBJECT DeviceObject);
static inline
VOID FspFsvolDeviceLockVolumeNotify(PDEVICE_OBJECT DeviceObject)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
ExAcquireFastMutexUnsafe(&FsvolDeviceExtension->VolumeNotifyMutex);
}
static inline
VOID FspFsvolDeviceUnlockVolumeNotify(PDEVICE_OBJECT DeviceObject)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
ExReleaseFastMutexUnsafe(&FsvolDeviceExtension->VolumeNotifyMutex);
}
#if defined(FSP_CFG_REJECT_EARLY_IRP)
static inline
BOOLEAN FspFsvolDeviceReadyToAcceptIrp(PDEVICE_OBJECT DeviceObject)

12
src/sys/volume.c
View File

@ -490,12 +490,12 @@ static VOID FspVolumeDeleteNoLock(
FspMupUnregister(Globals->FsmupDeviceObject, FsvolDeviceObject);
}
ExAcquireFastMutex(&FsvolDeviceExtension->VolumeNotifyMutex);
FspFsvolDeviceLockVolumeNotify(FsvolDeviceObject);
if (1 <= FsvolDeviceExtension->VolumeNotifyCount)
FspFsvolDeviceFileRenameReleaseOwner(FsvolDeviceObject,
&FsvolDeviceExtension->VolumeNotifyCount);
FsvolDeviceExtension->VolumeNotifyCount = -1;
ExReleaseFastMutex(&FsvolDeviceExtension->VolumeNotifyMutex);
FspFsvolDeviceUnlockVolumeNotify(FsvolDeviceObject);
/* release the volume device object */
FspDeviceDereference(FsvolDeviceObject);
@ -1257,7 +1257,7 @@ static NTSTATUS FspVolumeNotifyLock(
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
NTSTATUS Result = STATUS_SUCCESS;
ExAcquireFastMutex(&FsvolDeviceExtension->VolumeNotifyMutex);
FspFsvolDeviceLockVolumeNotify(FsvolDeviceObject);
if (0 == FsvolDeviceExtension->VolumeNotifyCount)
{
if (FspFsvolDeviceFileRenameTryAcquireShared(FsvolDeviceObject))
@ -1271,7 +1271,7 @@ static NTSTATUS FspVolumeNotifyLock(
}
else if (0 < FsvolDeviceExtension->VolumeNotifyCount)
FsvolDeviceExtension->VolumeNotifyCount++;
ExReleaseFastMutex(&FsvolDeviceExtension->VolumeNotifyMutex);
FspFsvolDeviceUnlockVolumeNotify(FsvolDeviceObject);
FspDeviceDereference(FsvolDeviceObject);
@ -1369,7 +1369,7 @@ static VOID FspVolumeNotifyWork(PVOID NotifyWorkItem0)
if (Unlock)
{
ExAcquireFastMutex(&FsvolDeviceExtension->VolumeNotifyMutex);
FspFsvolDeviceLockVolumeNotify(FsvolDeviceObject);
if (1 == FsvolDeviceExtension->VolumeNotifyCount)
{
FspFsvolDeviceFileRenameReleaseOwner(FsvolDeviceObject,
@ -1378,7 +1378,7 @@ static VOID FspVolumeNotifyWork(PVOID NotifyWorkItem0)
}
else if (1 < FsvolDeviceExtension->VolumeNotifyCount)
FsvolDeviceExtension->VolumeNotifyCount--;
ExReleaseFastMutex(&FsvolDeviceExtension->VolumeNotifyMutex);
FspFsvolDeviceUnlockVolumeNotify(FsvolDeviceObject);
}
FspFsvolDeviceVolumeDeleteReleaseOwner(FsvolDeviceObject, NotifyWorkItem);