DISK_CACHE_RETENTION_PRIORITY enumeration (ntdddisk.h)
The DISK_CACHE_RETENTION_PRIORITY enumeration is used in conjunction with the IOCTL_DISK_GET_CACHE_INFORMATION request and the structure DISK_CACHE_INFORMATION to indicate which kinds data are to be held in the cache on a preferential basis.
Syntax
typedef enum {
EqualPriority,
KeepPrefetchedData,
KeepReadData
} DISK_CACHE_RETENTION_PRIORITY;
Constants
EqualPriority Indicates that no data is held in the cache on a preferential basis. All types of data have equal access to cache memory. |
KeepPrefetchedData Indicates that a preference is to be given to prefetched data. |
KeepReadData Indicates that a preference is to be given to data cached from a READ operation. |
Requirements
Requirement | Value |
---|---|
Header | ntdddisk.h (include Ntdddisk.h) |