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The KfAcquireSpinLock routine acquires a spin lock so the caller can synchronize access to shared data in a multiprocessor-safe way by raising IRQL.
Syntax
KIRQL KfAcquireSpinLock(
PKSPIN_LOCK SpinLock
);
Parameters
SpinLock
Pointer to an initialized KSPIN_LOCK spin lock for which the caller provides the storage.
Remarks
For more information about spin locks, see Spin Locks.
Requirements
| Requirement | Value |
|---|---|
| Header | wdm.h (include Wdm.h) |
| DLL | hal.dll |
| DDI compliance rules | HwStorPortProhibitedDDIs(storport) |