FsRtlSplitLargeMcb - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// ntifs.h
BOOLEAN FsRtlSplitLargeMcb(
[in] PLARGE_MCB Mcb,
[in] LONGLONG Vbn,
[in] LONGLONG Amount
);
View the official Windows Driver Kit DDI referenceNo description available.
The FsRtlSplitLargeMcb routine inserts a hole into the mappings in a map control block (MCB).
Mcb [in]Pointer to the MCB structure.
Vbn [in]Starting virtual block number (VBN) of the range of mappings to be shifted upward by Amount to make room for the hole.
Amount [in]Number of sectors (VBNs) in the hole to be created.
FsRtlSplitLargeMcb returns TRUE if the hole was successfully created, FALSE otherwise.
A hole is a range of unmapped VBNs that form a gap between two mappings.
If a pool allocation failure occurs, FsRtlSplitLargeMcb raises a STATUS_INSUFFICIENT_RESOURCES exception. To gain control if this pool allocation failure occurs, the driver should wrap the call to FsRtlSplitLargeMcb in a try-except or try-finally statement.
FsRtlLookupLastLargeMcbEntryAndIndex