KernReadFileAtCache

This seems to do the same as KernReadAtFile, but reads from the cache and returns the corresponding pages of the cache data structure.

Synopsis

APIRET APIENTRY KernReadFileAtCache(KEEhfile khfd,KEECachePages** ptr, QWORD off, ULONG nbytes, PULONG nread);

Parameters

khfd

SFT pointer

ptr

Pointer to a variable the receives the cache data structure for the specified data blocks.

off

Offset in file to start reading

nbytes

Number of bytes to read

nread

Pointer to an ULONG to receive the number of bytes actually read.

Comments

Yet another JFS hack. Meanwhile I understand why IBM is reluctant to provide JFS support for Warp 4.