IBM General Parallel File System for AIX: Administration and Programming Reference

gpfsCancelHints_t Structure

Name

gpfsCancelHints_t - Indicates to remove any hints against the open file handle.

Structure

typedef struct
{
  int structLen;
  int structType;
} gpfsCancelHints_t;

Description

GPFS removes any hints that may have been issued against this open file handle:

• The hint status of the file is restored to what it would have been immediately after being opened, but does not affect the contents of the GPFS file cache. Cancelling an earlier hint that resulted in data being removed from the GPFS file cache does not bring that data back into the cache; data re-enters the cache only upon access by the application or by user-driven or automatic prefetching.
• Only the GPFS_MULTIPLE_ACCESS_RANGE hint has a state that might be removed by the GPFS_CANCEL_HINTS directive.

Note:

This directive cancels only the effect of other hints, not other directives.

Members

structLen

Length of the gpfsCancelHints_t structure.

structType

The directive identifier GPFS_CANCEL_HINTS.