// ntifs.h
BOOLEAN FsRtlLookupLastMcbEntry(
PMCB Mcb,
PVBN Vbn,
PLBN Lbn
);
View the official Windows Driver Kit DDI referenceNo description available.
The FsRtlLookupLastMcbEntry routine retrieves the last mapping entry stored in the map control block (MCB). It's obsolete, but is exported to support existing driver binaries. Use FsRtlLookupLastLargeMcbEntry instead.
McbReserved.
VbnReserved.
LbnReserved.
FsRtlGetNextLargeMcbEntry returns TRUE if the requested mapping run exists in the MCB, FALSE otherwise.