>>>>> "Thomas" == Thomas Graichen <news-innominate.list.sgi.xfs@xxxxxxxxxxxxx>
Thomas> what is the state of kiobuf on ide drives (and all the other
Thomas> stuff like md etc.) - doeas anyone here has some idea about
Thomas> the current and future state ?
kiobuf support is in a state of flux right now. The existing scheme
didn't work out very well for LVM, MD and other stackable block device
Chait Tumuluri, Jens Axboe and myself are redesigning the Linux block
I/O queueing structure to accomodate both buffer_head and kiobuf based
I/O. We haven't settled on a final design yet, however (keep running
into nasties). Once the API is frozen, the new code will start to
appear in the XFS tree.
We also want to make sure that this (fairly intrusive) change in the
kernel is acknowledged by the powers that be, so that we won't have to
rewrite everything when XFS eventually becomes part of the mainstream
Martin K. Petersen Principal Linux Consultant, Linuxcare, Inc.
http://mkp.net/ SGI XFS, Linux/PA-RISC, GNOME