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MARK_HANDLE_INFO structure (ntifs.h)

  • Article

A MARK_HANDLE_INFO structure is passed as the input buffer during a FSCTL_MARK_HANDLE control code request.

Syntax

typedef struct _MARK_HANDLE_INFO {
  union {
    ULONG UsnSourceInfo;
    ULONG CopyNumber;
  } DUMMYUNIONNAME;
  ULONG  UsnSourceInfo;
  HANDLE VolumeHandle;
  ULONG  HandleInfo;
} MARK_HANDLE_INFO, *PMARK_HANDLE_INFO;

Members

DUMMYUNIONNAME

DUMMYUNIONNAME.UsnSourceInfo

See UsnSourceInfo below.

DUMMYUNIONNAME.CopyNumber

Identifies which copy of a file to read, when reading from a file that resides on redundant media.

UsnSourceInfo

The optional update sequence number (USN) source info flags. To set any of these values, a volume DASD handle must be specified in the VolumeHandle field. Can be a combination of the following values:

Flag Meaning
USN_SOURCE_DATA_MANAGEMENT Service is not modifying the external view of any part of the file. Typical case is HSM moving data to and from external storage.
USN_SOURCE_AUXILIARY_DATA Service is not modifying the external view of the file with regard to the application that created this file. Can be used to add private data streams to a file.
USN_SOURCE_REPLICATION_MANAGEMENT Service is modifying a file to match the contents of the same file which exists in another member of the replica set.
USN_SOURCE_CLIENT_REPLICATION_MANAGEMENT Replication is being performed on client systems either from the cloud or servers. A volume handle is not required to set this value

VolumeHandle

Volume handle for this operation.

HandleInfo

Contains flags to identify the request. This field can be one of the following values:

Flag Meaning
MARK_HANDLE_PROTECT_CLUSTERS Do not allow any defragmenting (FSCTL_MOVE_FILE) until the handle is closed.
MARK_HANDLE_TXF_SYSTEM_LOG This stream is being used as the Txf log for a resource manager on the volume. Must be called in the kernel using IRP_MN_KERNEL_CALL. Available starting in Windows Vista.
MARK_HANDLE_NOT_TXF_SYSTEM_LOG This component is no longer using this object as a TxF log file. Available starting in Windows Vista.
MARK_HANDLE_REALTIME Only supported by the UDFS file system. Marks the device to do realtime streaming of video. Available starting in Windows 7.
MARK_HANDLE_NOT_REALTIME Only supported by the UDFS file system. Marks the device to no longer do realtime streaming of video. Available starting in Windows 7.
MARK_HANDLE_CLOUD_SYNC Deprecated; do not use this flag.
MARK_HANDLE_READ_COPY The data must be read from the specified copy of data. Only supported for Storage Spaces redundant volumes. Available starting in Windows 8.
MARK_HANDLE_NOT_READ_COPY The data is no longer to be read from a specific copy. Only supported for Storage Spaces redundant volumes. Available starting in Windows 8.
MARK_HANDLE_FILTER_METADATA Reserved for internal Microsoft use only.
MARK_HANDLE_RETURN_PURGE_FAILURE When intermixing memory mapped/cached IO with non-cached IO, and a non-cached IO is issued, the system attempts to purge memory mappings for the range of the non-cached IO. If these purges fail the system normally does not return the failure to the caller which can lead to corrupted state. This flag tells the system to return purge failures for the given handle so the application can better handle this situation. Available starting in Windows 8.1.
MARK_HANDLE_DISABLE_FILE_METADATA_OPTIMIZATION Disables the File Replication Service (FRS) compaction feature on the given file. Available starting in Windows 10 version 1507.
MARK_HANDLE_ENABLE_USN_SOURCE_ON_PAGING_IO Tells NTFS to set the given UsnSourceInfo value on Paging writes in the USN Journal. Traditionally this was not done on paging writes since you did not know what thread made the given changes. This is an override. This only works if the FileObject that the Memory Manager is holding on to has this state associated with it. Available starting in Windows 10 version 1507.
MARK_HANDLE_SKIP_COHERENCY_SYNC_DISALLOW_WRITES Tells the system that writes are not allowed on this file. If someone tries to open the file for write access, the operation is failed with STATUS_ACCESS_DENIED. If a write is seen the operation is failed with STATUS_MARKED_TO_DISALLOW_WRITES. Available starting in Windows 10 version 1507.
MARK_HANDLE_ENABLE_CPU_CACHE Reserved for internal Microsoft use only.
MARK_HANDLE_SUPPRESS_VOLUME_OPEN_FLUSH Normally, on the first read/write operation on a volume handle (DASD open), the file system flushes the volume. This can have performance consequences in certain scenarios. If this flag is set on a volume handle it will suppress that flush on first IO. Available starting in Windows 11.

Remarks

MARK_HANDLE_INFO contains the information used to mark a specified file or directory, and its update sequence number (USN) change journal record with data about changes.

Requirements

Requirement Value
Minimum supported client Windows XP
Header ntifs.h

See also

FSCTL_MARK_HANDLE