#ifndef _NTIOAPI_H
/**
* The FILE_FS_METADATA_SIZE_INFORMATION structure is used to query the size of metadata for a file system volume.
*/
typedef struct _FILE_FS_METADATA_SIZE_INFORMATION
{
LARGE_INTEGER TotalMetadataAllocationUnits;
ULONG SectorsPerAllocationUnit;
ULONG BytesPerSector;
} FILE_FS_METADATA_SIZE_INFORMATION, *PFILE_FS_METADATA_SIZE_INFORMATION;
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