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sys: FspFileNodeCopyActiveList, FspFileNodeCopyOpenList

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This commit is contained in:
Bill Zissimopoulos
2017-01-03 23:14:33 -08:00
parent 95bbb584eb
commit 638e5a20b6
5 changed files with 81 additions and 7 deletions
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47
src/sys/device.c
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@@ -43,6 +43,8 @@ VOID FspFsvolDeviceFileRenameRelease(PDEVICE_OBJECT DeviceObject);
VOID FspFsvolDeviceFileRenameReleaseOwner(PDEVICE_OBJECT DeviceObject, PVOID Owner);
VOID FspFsvolDeviceLockContextTable(PDEVICE_OBJECT DeviceObject);
VOID FspFsvolDeviceUnlockContextTable(PDEVICE_OBJECT DeviceObject);
NTSTATUS FspFsvolDeviceCopyContextList(PDEVICE_OBJECT DeviceObject,
PVOID **PContexts, PULONG PContextCount);
NTSTATUS FspFsvolDeviceCopyContextByNameList(PDEVICE_OBJECT DeviceObject,
PVOID **PContexts, PULONG PContextCount);
VOID FspFsvolDeviceDeleteContextList(PVOID *Contexts, ULONG ContextCount);
@@ -80,6 +82,7 @@ VOID FspDeviceDeleteAll(VOID);
#pragma alloc_text(PAGE, FspFsvolDeviceFileRenameReleaseOwner)
#pragma alloc_text(PAGE, FspFsvolDeviceLockContextTable)
#pragma alloc_text(PAGE, FspFsvolDeviceUnlockContextTable)
#pragma alloc_text(PAGE, FspFsvolDeviceCopyContextList)
#pragma alloc_text(PAGE, FspFsvolDeviceCopyContextByNameList)
#pragma alloc_text(PAGE, FspFsvolDeviceDeleteContextList)
#pragma alloc_text(PAGE, FspFsvolDeviceEnumerateContextByName)
@@ -587,6 +590,50 @@ VOID FspFsvolDeviceUnlockContextTable(PDEVICE_OBJECT DeviceObject)
ExReleaseResourceLite(&FsvolDeviceExtension->ContextTableResource);
}
NTSTATUS FspFsvolDeviceCopyContextList(PDEVICE_OBJECT DeviceObject,
PVOID **PContexts, PULONG PContextCount)
{
PAGED_CODE();
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
PVOID *Contexts;
ULONG ContextCount, Index;
*PContexts = 0;
*PContextCount = 0;
ContextCount = 0;
for (
PLIST_ENTRY Head = &FsvolDeviceExtension->ContextList, Entry = Head->Flink;
Head != Entry;
Entry = Entry->Flink)
{
ContextCount++;
}
/* if ContextCount == 0 allocate an empty Context list */
Contexts = FspAlloc(sizeof(PVOID) * (0 != ContextCount ? ContextCount : 1));
if (0 == Contexts)
return STATUS_INSUFFICIENT_RESOURCES;
Index = 0;
for (
PLIST_ENTRY Head = &FsvolDeviceExtension->ContextList, Entry = Head->Flink;
Head != Entry;
Entry = Entry->Flink)
{
ASSERT(Index < ContextCount);
Contexts[Index++] = CONTAINING_RECORD(Entry, FSP_FILE_NODE, ActiveEntry);
/* assume that Contexts can only be FSP_FILE_NODE's */
}
ASSERT(Index == ContextCount);
*PContexts = Contexts;
*PContextCount = Index;
return STATUS_SUCCESS;
}
NTSTATUS FspFsvolDeviceCopyContextByNameList(PDEVICE_OBJECT DeviceObject,
PVOID **PContexts, PULONG PContextCount)
{

6
src/sys/driver.h
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@@ -1066,6 +1066,8 @@ VOID FspFsvolDeviceFileRenameRelease(PDEVICE_OBJECT DeviceObject);
VOID FspFsvolDeviceFileRenameReleaseOwner(PDEVICE_OBJECT DeviceObject, PVOID Owner);
VOID FspFsvolDeviceLockContextTable(PDEVICE_OBJECT DeviceObject);
VOID FspFsvolDeviceUnlockContextTable(PDEVICE_OBJECT DeviceObject);
NTSTATUS FspFsvolDeviceCopyContextList(PDEVICE_OBJECT DeviceObject,
PVOID **PContexts, PULONG PContextCount);
NTSTATUS FspFsvolDeviceCopyContextByNameList(PDEVICE_OBJECT DeviceObject,
PVOID **PContexts, PULONG PContextCount);
VOID FspFsvolDeviceDeleteContextList(PVOID *Contexts, ULONG ContextCount);
@@ -1236,7 +1238,9 @@ typedef struct
HANDLE MainFileHandle;
PFILE_OBJECT MainFileObject;
} FSP_FILE_DESC;
NTSTATUS FspFileNodeCopyList(PDEVICE_OBJECT DeviceObject,
NTSTATUS FspFileNodeCopyActiveList(PDEVICE_OBJECT DeviceObject,
FSP_FILE_NODE ***PFileNodes, PULONG PFileNodeCount);
NTSTATUS FspFileNodeCopyOpenList(PDEVICE_OBJECT DeviceObject,
FSP_FILE_NODE ***PFileNodes, PULONG PFileNodeCount);
VOID FspFileNodeDeleteList(FSP_FILE_NODE **FileNodes, ULONG FileNodeCount);
NTSTATUS FspFileNodeCreate(PDEVICE_OBJECT DeviceObject,

29
src/sys/file.c
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@@ -17,7 +17,9 @@
#include <sys/driver.h>
NTSTATUS FspFileNodeCopyList(PDEVICE_OBJECT DeviceObject,
NTSTATUS FspFileNodeCopyActiveList(PDEVICE_OBJECT DeviceObject,
FSP_FILE_NODE ***PFileNodes, PULONG PFileNodeCount);
NTSTATUS FspFileNodeCopyOpenList(PDEVICE_OBJECT DeviceObject,
FSP_FILE_NODE ***PFileNodes, PULONG PFileNodeCount);
VOID FspFileNodeDeleteList(FSP_FILE_NODE **FileNodes, ULONG FileNodeCount);
NTSTATUS FspFileNodeCreate(PDEVICE_OBJECT DeviceObject,
@@ -100,7 +102,8 @@ VOID FspFileNodeOplockPrepare(PVOID Context, PIRP Irp);
VOID FspFileNodeOplockComplete(PVOID Context, PIRP Irp);
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, FspFileNodeCopyList)
#pragma alloc_text(PAGE, FspFileNodeCopyActiveList)
#pragma alloc_text(PAGE, FspFileNodeCopyOpenList)
#pragma alloc_text(PAGE, FspFileNodeDeleteList)
#pragma alloc_text(PAGE, FspFileNodeCreate)
#pragma alloc_text(PAGE, FspFileNodeDelete)
@@ -227,7 +230,27 @@ VOID FspFileNodeOplockComplete(PVOID Context, PIRP Irp);
FspFree(DescendantFileNodes); \
((VOID)0)
NTSTATUS FspFileNodeCopyList(PDEVICE_OBJECT DeviceObject,
NTSTATUS FspFileNodeCopyActiveList(PDEVICE_OBJECT DeviceObject,
FSP_FILE_NODE ***PFileNodes, PULONG PFileNodeCount)
{
PAGED_CODE();
NTSTATUS Result;
ULONG Index;
FspFsvolDeviceLockContextTable(DeviceObject);
Result = FspFsvolDeviceCopyContextList(DeviceObject, PFileNodes, PFileNodeCount);
if (NT_SUCCESS(Result))
{
for (Index = 0; *PFileNodeCount > Index; Index++)
FspFileNodeReference((*PFileNodes)[Index]);
}
FspFsvolDeviceUnlockContextTable(DeviceObject);
return Result;
}
NTSTATUS FspFileNodeCopyOpenList(PDEVICE_OBJECT DeviceObject,
FSP_FILE_NODE ***PFileNodes, PULONG PFileNodeCount)
{
PAGED_CODE();

2
src/sys/flush.c
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@@ -58,7 +58,7 @@ static NTSTATUS FspFsvolFlushBuffers(
*/
if (!FspFileNodeIsValid(FileNode) || FileNode->IsRootDirectory)
{
Result = FspFileNodeCopyList(FsvolDeviceObject, &FileNodes, &FileNodeCount);
Result = FspFileNodeCopyOpenList(FsvolDeviceObject, &FileNodes, &FileNodeCount);
if (!NT_SUCCESS(Result))
return Result;

4
src/sys/volume.c
View File

@@ -294,9 +294,9 @@ VOID FspVolumeDelete(
FspDeviceGlobalUnlock();
/*
* Call MmForceSectionClosed on open files to ensure that Mm removes them from Standby List.
* Call MmForceSectionClosed on active files to ensure that Mm removes them from Standby List.
*/
Result = FspFileNodeCopyList(FsvolDeviceObject, &FileNodes, &FileNodeCount);
Result = FspFileNodeCopyActiveList(FsvolDeviceObject, &FileNodes, &FileNodeCount);
if (NT_SUCCESS(Result))
{
for (Index = FileNodeCount - 1; FileNodeCount > Index; Index--)