On Mon, Oct 27, 2003 at 03:58:04PM +0100, Felix Domke wrote: > Hi, > > >User space parses and passes it via ioctls to the kernel. > >Please look at lvm.h for the ioctls defined and the structures involved. > >Grep the LVM1 library source in tools/lib/ for "ioctl" to get you started. > > > > > Where exactly is the LV information passed to the kernel? is it > "LV_CREATE"? Yes. > > The kernel seems to don't know the LV, the LV_STATUS_BYINDEX on the > "/dev/fast/group" returns "No such device or address" (ENXIO) for each > index, including 0, which should be the LV in question. > > It looks as "lvm_do_lv_status_byindex" in the kernel returns -ENXIO > because vg_ptr->lv[lv_status_byindex_req.lv_index] is zero. Where is the > point where this array is written? I only found LV_CREATE, but that's > only called in vgimport, vgmerge and lvcreate, so it looks as there is See lvm_do_vg_create() and lvm_do_lv_create() functions in the driver. > another place. > > > Can you point me in the direction? > > > Felix > > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ -- Regards, Heinz -- The LVM Guy -- *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
