FsRtlFastUnlockAll function (ntifs.h)

Article
02/22/2024

The FsRtlFastUnlockAll routine releases all byte-range locks that were acquired by the specified process for a file.

Syntax

NTSTATUS FsRtlFastUnlockAll(
  [in]           PFILE_LOCK   FileLock,
  [in]           PFILE_OBJECT FileObject,
  [in]           PEPROCESS    ProcessId,
  [in, optional] PVOID        Context
);

Parameters

[in] FileLock

Pointer to the FILE_LOCK structure for the file. This structure must have been initialized by a previous call to FsRtlAllocateFileLock or FsRtlInitializeFileLock.

[in] FileObject

Pointer to the file object for the file.

[in] ProcessId

Pointer to the process ID for the process.

[in, optional] Context

Optional context pointer to be used when completing IRPs.

Return value

FsRtlFastUnlockAll returns STATUS_SUCCESS or an error status code such as STATUS_RANGE_NOT_LOCKED.

Remarks

After releasing the byte-range locks, FsRtlFastUnlockAll completes any currently queued lock IRPs that can now be completed.

Requirements

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