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sys: FspFileNodeTrySetFileInfoOnOpen

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This commit is contained in:
Bill Zissimopoulos
2017-07-11 15:23:03 -07:00
parent b35bf204db
commit 637f461a65
2 changed files with 48 additions and 10 deletions
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21
src/sys/file.c
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@ -1673,20 +1673,21 @@ BOOLEAN FspFileNodeTrySetFileInfoOnOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT Cc
FspFsvolDeviceLockContextTable(FileNode->FsvolDeviceObject);
EarlyExit = 1 < FileNode->OpenCount;
FspFsvolDeviceUnlockContextTable(FileNode->FsvolDeviceObject);
if (EarlyExit)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension =
FspFsvolDeviceExtension(FileNode->FsvolDeviceObject);
UINT64 AllocationSize = FileInfo->AllocationSize > FileInfo->FileSize ?
FileInfo->AllocationSize : FileInfo->FileSize;
UINT64 AllocationUnit;
AllocationUnit = FsvolDeviceExtension->VolumeParams.SectorSize *
FsvolDeviceExtension->VolumeParams.SectorsPerAllocationUnit;
AllocationSize = (AllocationSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit;
if (TruncateOnClose)
{
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension =
FspFsvolDeviceExtension(FileNode->FsvolDeviceObject);
UINT64 AllocationSize = FileInfo->AllocationSize > FileInfo->FileSize ?
FileInfo->AllocationSize : FileInfo->FileSize;
UINT64 AllocationUnit;
AllocationUnit = FsvolDeviceExtension->VolumeParams.SectorSize *
FsvolDeviceExtension->VolumeParams.SectorsPerAllocationUnit;
AllocationSize = (AllocationSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit;
if ((UINT64)FileNode->Header.AllocationSize.QuadPart != AllocationSize ||
(UINT64)FileNode->Header.FileSize.QuadPart != FileInfo->FileSize)
FileNode->TruncateOnClose = TRUE;