KeReleaseInStackQueuedSpinLockForDpc function (wdm.h)
The KeReleaseInStackQueuedSpinLockForDpc routine releases a queued spin lock that was acquired by calling KeAcquireInStackQueuedSpinLockForDpc.
Syntax
void KeReleaseInStackQueuedSpinLockForDpc(
[in] PKLOCK_QUEUE_HANDLE LockHandle
);
Parameters
[in] LockHandle
Pointer to the KLOCK_QUEUE_HANDLE structure that KeAcquireInStackQueuedSpinLockForDpc initialized when the queued spin lock was acquired.
Return value
None
Remarks
For more information about queued spin locks, see Queued Spin Locks.
If the current IRQL was PASSIVE_LEVEL when the queued spin lock was acquired, KeReleaseSpinLockForDpc lowers the current IRQL to PASSIVE_LEVEL. If the current IRQL was DISPATCH_LEVEL when the queued spin lock was acquired, KeReleaseSpinLockForDpc does not change the current IRQL.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows Vista and later versions of Windows. |
| Target Platform | Universal |
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h) |
| Library | NtosKrnl.lib |
| DLL | NtosKrnl.exe |
| IRQL | See Remarks section. |
| DDI compliance rules | HwStorPortProhibitedDDIs(storport) |