On 05/13/2011 10:07 PM, Sasha Levin wrote: > On Fri, 2011-05-13 at 15:46 +0300, Pekka Enberg wrote: >> On 5/13/11 5:40 AM, Asias He wrote: >>> commit b764422bb0b46b00b896f6d4538ac3d3dde9e56b >>> (kvm tools: Add support for multiple virtio-blk) >>> removed the VIRTIO_BLK_F_SEG_MAX publishment to guest. >>> >>> There is no reason we should not support it. Just bring it back. >>> >>> Signed-off-by: Asias He<[email protected]> >> >> Sasha? > > I'm not sure why it was removed, must have missed it when updating > struct blk_dev. > > On the other hand, why do we need to limit max segment size?
That's because the number of entries in a scatter-gather operation must be less than the entries in the virt queue we can offer. -- Best Regards, Asias He -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
