FltSetIoPriorityHintIntoFileObject function (fltkernel.h)
The FltSetIoPriorityHintIntoFileObject routine is used by a minifilter driver to set the I/O priority information in a file object.
Syntax
NTSTATUS FLTAPI FltSetIoPriorityHintIntoFileObject(
[in] PFILE_OBJECT FileObject,
[in] IO_PRIORITY_HINT PriorityHint
);
Parameters
[in] FileObject
A pointer to the file object to modify. This parameter is required and cannot be NULL.
[in] PriorityHint
The IO_PRIORITY_HINT enumeration value to set for the file object pointed to by FileObject.
Return value
If the I/O priority value passed in the PriorityHint parameter is successfully applied to the FileObject structure, FltSetIoPriorityHintIntoFileObject returns STATUS_SUCCESS. Otherwise, it returns an appropriate NTSTATUS value, such as one of the following:
| Return code | Description |
|---|---|
|
The value of the PriorityHint parameter is invalid. This is an error code. |
Remarks
This routine is NONPAGED and can be called from paging I/O paths.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows Vista. |
| Target Platform | Universal |
| Header | fltkernel.h (include FltKernel.h) |
| Library | FltMgr.lib |
| DLL | Fltmgr.sys |
| IRQL | <= DISPATCH_LEVEL |
See also
FltGetIoPriorityHintFromCallbackData
FltGetIoPriorityHintFromFileObject
FltGetIoPriorityHintFromThread
FltSetIoPriorityHintIntoCallbackData