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[NTFS]

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Add ability to write to resident attributes.
SetAttributeDataLength() - Check if the file is memory mapped before truncating
+InternalSetResidentAttributeLength() - Used by SetAttributeDataLength()

svn path=/branches/GSoC_2016/NTFS/; revision=71820
This commit is contained in:
Trevor Thompson 2016-07-05 07:00:43 +00:00 • committed by Thomas Faber
parent 25fdabd8ca
commit 760cdfb5aa
4 changed files with 174 additions and 33 deletions
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3
drivers/filesystems/ntfs/volinfo.c
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@ -116,7 +116,6 @@ NtfsAllocateClusters(PDEVICE_EXTENSION DeviceExt,
ULONGLONG BitmapDataSize;
PCHAR BitmapData;
ULONGLONG FreeClusters = 0;
ULONG Read = 0;
RTL_BITMAP Bitmap;
DPRINT1("NtfsAllocateClusters(%p, %lu, %lu, %p, %p)\n", DeviceExt, FirstDesiredCluster, DesiredClusters, FirstAssignedCluster, AssignedClusters);
@ -158,7 +157,7 @@ NtfsAllocateClusters(PDEVICE_EXTENSION DeviceExt,
DPRINT1("Total clusters in bitmap: %I64x\n", BitmapDataSize * 8);
DPRINT1("Diff in size: %I64d B\n", ((BitmapDataSize * 8) - DeviceExt->NtfsInfo.ClusterCount) * DeviceExt->NtfsInfo.SectorsPerCluster * DeviceExt->NtfsInfo.BytesPerSector);
ReadAttribute(DeviceExt, DataContext, Read, (PCHAR)((ULONG_PTR)BitmapData + Read), (ULONG)BitmapDataSize);
ReadAttribute(DeviceExt, DataContext, 0, (PCHAR)BitmapData, (ULONG)BitmapDataSize);
RtlInitializeBitMap(&Bitmap, (PULONG)BitmapData, DeviceExt->NtfsInfo.ClusterCount);
FreeClusters = RtlNumberOfClearBits(&Bitmap);