On 20 November 2010 00:41, Nicholas A. Bellinger <n...@linux-iscsi.org> wrote: > On Fri, 2010-11-19 at 19:39 +0100, Christoph Hellwig wrote: >> On Thu, Nov 18, 2010 at 03:47:36PM +0100, Hannes Reinecke wrote: >> > >> > aio_ioctl is emulated anyway and currently broken. >> >> What's broken about it currently? > > Mmmmmm, I do not recall this being broken in the first place..? There > was a single issue with megasas+bdrv_aio_ioctl() with WinXP (that did > not appear with lsi53c895a) that was mentioned on the list earlier in > the year that required a patch to use bdev_ioctl(), but last I recall > Hannes had already fixed this in recent megasas.c code w/ 32-bit MSFT > guests. Also, this is what I have been with scsi_generic.c and > scsi_bsg.c into TCM_loop in my v0.12.5 megasas tree, and I am not > observing any obvious issues with AIO IOCTLs for SG_IO/BSG into Linux > guests. > > I will give AIO IOCTL ops a run with these on v2.6.37-rc2 lock-less KVM > host mode <-> TCM_Loop to verify against the v0.12.5 megasas tree.
Could this AIO ioctl breakage perhaps be the one I fixed here? http://web.archiveorange.com/archive/v/1XS1vROmfC7dN9wYxsmt The patch is defintely in the latest git... it works fine for me with my scsi-generic MMC command patches.
