Hi,
This email is to announce the availability of kiobuf-based I/O
functionality for 2.3.99.pre9-2 kernels.
First, the I/O queuing and scsi midlayer code in the Linux
2.3.99.pre9-2 kernel has been enhanced to handle kiobuf-based
I/O requests. Second, Stephen Tweedie's rawio codepath has been
extended to use this enhancement to directly issue kiobuf-based
requests without having to restuff them into buffer-heads.
This change does not change the device access semantics of Stephen
Tweedie's code for raw devices. This enhancement only works for scsi
disks currently.
The complete patch (combining Stephen Tweedie's current patchset
for Raw I/O and the new queueing/scsi-midlayer enhancements) is
available from:
http://oss.sgi.com/projects/rawio
Thanks,
-Chait.
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