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gpfsCancelHints_t Structure
Name
gpfsCancelHints_t – Indicates to remove any hints against the open file handle.
Library
GPFS Library (libgpfs.a for AIX, libgpfs.so for Linux)
Structure
typedef struct
{
int structLen;
int structType;
} gpfsCancelHints_t;
Description
The gpfsCancelHints_t structure indicates to remove any hints against the open file handle.
GPFS removes any hints that may have been issued against this open file handle:
v 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 reenters
the cache only upon access by the application or by user-driven or automatic prefetching.
v 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 Structure identifier GPFS_CANCEL_HINTS.
Location
/usr/lpp/mmfs/lib/libgpfs.a for AIX, /usr/lpp/mmfs/lib/libgpfs.so for Linux
Chapter 9. GPFS programming interfaces 345