MmUnlockPages function (wdm.h)

  • Article

The MmUnlockPages routine unlocks the physical pages that are described by the specified memory descriptor list (MDL).

Syntax

void MmUnlockPages(
  [in, out] PMDL MemoryDescriptorList
);

Parameters

[in, out] MemoryDescriptorList

A pointer to an MDL.

Return value

None

Remarks

The memory described by the specified MDL must have been locked previously by a call to MmProbeAndLockPages. If the specified MDL is mapped to system address space, MmUnlockPages releases this mapping before it unlocks the pages.

For more information, see Using MDLs.

Requirements

Requirement Value
Minimum supported client Available starting with Windows 2000.
Target Platform Universal
Header wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)
Library NtosKrnl.lib
DLL NtosKrnl.exe
IRQL <=DISPATCH_LEVEL
DDI compliance rules HwStorPortProhibitedDDIs(storport)

See also

MmProbeAndLockPages