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The DEVICE_DSM_NVCACHE_CHANGE_PRIORITY_PARAMETERS structure contains caching priority information to apply to a range of logical blocks.
Syntax
typedef struct _DEVICE_DSM_NVCACHE_CHANGE_PRIORITY_PARAMETERS {
ULONG Size;
UCHAR TargetPriority;
UCHAR Reserved[3];
} DEVICE_DSM_NVCACHE_CHANGE_PRIORITY_PARAMETERS, *PDEVICE_DSM_NVCACHE_CHANGE_PRIORITY_PARAMETERS;
Members
Size
Size of this structure. Set to sizeof(DEVICE_DSM_NVCACHE_CHANGE_PRIORITY_PARAMETERS).
TargetPriority
The target caching priority to apply to a range of logical blocks.
Reserved[3]
Reserved for future use; do not use.
Remarks
The output block in the payload of an IOCTL_STORAGE_MANAGE_DATA_SET_ATTRIBUTES request is formatted as a DEVICE_DSM_NVCACHE_CHANGE_PRIORITY_PARAMETERS structure when the action is DeviceDsmAction_NvCache_Change_Priority. See DEVICE_DSM_ACTION Descriptions for more details about this action.
Requirements
| Requirement | Value |
|---|---|
| Header | ntddstor.h |