FsRtlUninitializeOplock function (ntifs.h)

Article
02/22/2024

FsRtlUninitializeOplock uninitializes an opportunistic lock (oplock) pointer.

Syntax

void FsRtlUninitializeOplock(
  [in, out] POPLOCK Oplock
);

Parameters

[in, out] Oplock

Opaque opportunistic lock pointer. This pointer must have been initialized by a previous call to FsRtlInitializeOplock.

Return value

None

Remarks

File systems and filter drivers call FsRtlUninitializeOplock to uninitialize an initialized opportunistic lock (oplock) pointer. The uninitialized oplock pointer can be initialized for reuse by calling FsRtlInitializeOplock.

For detailed information about opportunistic locks, see the Microsoft Windows SDK documentation.

Minifilters should call FltUninitializeOplock instead of FsRtlUninitializeOplock.

Requirements

Requirement	Value
Target Platform	Universal
Header	ntifs.h (include Ntifs.h)
Library	NtosKrnl.lib
DLL	NtosKrnl.exe
IRQL	<= APC_LEVEL