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The ExReleaseFastMutexUnsafe routine releases ownership of a fast mutex that was acquired by using ExAcquireFastMutexUnsafe.
Syntax
void ExReleaseFastMutexUnsafe(
PFAST_MUTEX FastMutex
);
Parameters
FastMutex
[in, out] A pointer to the fast mutex to be released.
Return value
None
Remarks
It is a programming error to call ExReleaseFastMutexUnsafe with a pointer to a fast mutex that was acquired by using ExAcquireFastMutex or ExTryToAcquireFastMutex.
For more information about fast mutexes, see Fast Mutexes and Guarded Mutexes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 |
| Header | wdm.h |
| IRQL | APC_LEVEL |
| DDI compliance rules | HwStorPortProhibitedDDIs(storport) |