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sys: FspFileNodeNotifyChange: significant improvements

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This commit is contained in:
Bill Zissimopoulos
2016-12-27 21:30:56 -08:00
parent f0a0787f6b
commit 5824a24bf4
6 changed files with 78 additions and 44 deletions
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46
src/sys/file.c
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@ -74,9 +74,9 @@ BOOLEAN FspFileNodeReferenceStreamInfo(FSP_FILE_NODE *FileNode, PCVOID *PBuffer,
VOID FspFileNodeSetStreamInfo(FSP_FILE_NODE *FileNode, PCVOID Buffer, ULONG Size);
BOOLEAN FspFileNodeTrySetStreamInfo(FSP_FILE_NODE *FileNode, PCVOID Buffer, ULONG Size,
ULONG StreamInfoChangeNumber);
static VOID FspFileNodeInvalidateStreamInfo(FSP_FILE_NODE *FileNode);
VOID FspFileNodeNotifyChange(FSP_FILE_NODE *FileNode,
ULONG Filter, ULONG Action);
VOID FspFileNodeInvalidateStreamInfo(FSP_FILE_NODE *FileNode);
VOID FspFileNodeNotifyChange(FSP_FILE_NODE *FileNode, ULONG Filter, ULONG Action,
BOOLEAN InvalidateCaches);
NTSTATUS FspFileNodeProcessLockIrp(FSP_FILE_NODE *FileNode, PIRP Irp);
static NTSTATUS FspFileNodeCompleteLockIrp(PVOID Context, PIRP Irp);
NTSTATUS FspFileDescCreate(FSP_FILE_DESC **PFileDesc);
@ -1746,7 +1746,7 @@ BOOLEAN FspFileNodeTrySetStreamInfo(FSP_FILE_NODE *FileNode, PCVOID Buffer, ULON
return TRUE;
}
static VOID FspFileNodeInvalidateStreamInfo(FSP_FILE_NODE *FileNode)
VOID FspFileNodeInvalidateStreamInfo(FSP_FILE_NODE *FileNode)
{
// !PAGED_CODE();
@ -1767,8 +1767,8 @@ static VOID FspFileNodeInvalidateStreamInfo(FSP_FILE_NODE *FileNode)
FspMetaCacheInvalidateItem(FsvolDeviceExtension->StreamInfoCache, StreamInfo);
}
VOID FspFileNodeNotifyChange(FSP_FILE_NODE *FileNode,
ULONG Filter, ULONG Action)
VOID FspFileNodeNotifyChange(FSP_FILE_NODE *FileNode, ULONG Filter, ULONG Action,
BOOLEAN InvalidateCaches)
{
/* FileNode must be acquired (exclusive or shared) Main */
@ -1778,19 +1778,6 @@ VOID FspFileNodeNotifyChange(FSP_FILE_NODE *FileNode,
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
UNICODE_STRING Parent, Suffix;
FspFileNameSuffix(&FileNode->FileName, &Parent, &Suffix);
switch (Action)
{
case FILE_ACTION_ADDED:
case FILE_ACTION_REMOVED:
case FILE_ACTION_RENAMED_OLD_NAME:
case FILE_ACTION_RENAMED_NEW_NAME:
FspFsvolDeviceInvalidateVolumeInfo(FsvolDeviceObject);
FspFileNodeInvalidateDirInfoByName(FsvolDeviceObject, &Parent);
break;
}
if (0 != FileNode->MainFileNode)
{
if (FlagOn(Filter, FILE_NOTIFY_CHANGE_DIR_NAME | FILE_NOTIFY_CHANGE_FILE_NAME))
@ -1804,25 +1791,40 @@ VOID FspFileNodeNotifyChange(FSP_FILE_NODE *FileNode,
{
case FILE_ACTION_ADDED:
Action = FILE_ACTION_ADDED_STREAM;
FspFileNodeInvalidateStreamInfo(FileNode);
break;
case FILE_ACTION_REMOVED:
Action = FILE_ACTION_REMOVED_STREAM;
FspFileNodeInvalidateStreamInfo(FileNode);
break;
case FILE_ACTION_MODIFIED:
Action = FILE_ACTION_MODIFIED_STREAM;
//FspFileNodeInvalidateStreamInfo(FileNode);
break;
}
}
if (0 != Filter)
{
FspFileNameSuffix(&FileNode->FileName, &Parent, &Suffix);
if (InvalidateCaches)
{
FspFsvolDeviceInvalidateVolumeInfo(FsvolDeviceObject);
if (0 == FileNode->MainFileNode)
{
if (sizeof(WCHAR) == FileNode->FileName.Length && L'\\' == FileNode->FileName.Buffer[0])
; /* root does not have a parent */
else
FspFileNodeInvalidateDirInfoByName(FsvolDeviceObject, &Parent);
}
else
FspFileNodeInvalidateStreamInfo(FileNode);
}
FspNotifyReportChange(
FsvolDeviceExtension->NotifySync, &FsvolDeviceExtension->NotifyList,
&FileNode->FileName,
(USHORT)((PUINT8)Suffix.Buffer - (PUINT8)FileNode->FileName.Buffer),
0, Filter, Action);
}
}
NTSTATUS FspFileNodeProcessLockIrp(FSP_FILE_NODE *FileNode, PIRP Irp)