Re: [Qemu-devel] Locking block devices for concurrent access?

2010-04-22 Thread Michael Tokarev
22.04.2010 23:21, Richard W.M. Jones wrote: On Thu, Apr 22, 2010 at 01:36:30PM -0500, Anthony Liguori wrote: I think we got to the point where there was general agreement on the usefulness of lock=read|write but where there was still some contention was on this whole notion of lock=exclusive|sha

Re: [Qemu-devel] Locking block devices for concurrent access?

2010-04-22 Thread Richard W.M. Jones
On Thu, Apr 22, 2010 at 01:36:30PM -0500, Anthony Liguori wrote: > I think we got to the point where there was general agreement on the > usefulness of lock=read|write but where there was still some contention > was on this whole notion of lock=exclusive|shared. > > I believe Richard Jones was

Re: [Qemu-devel] Locking block devices for concurrent access?

2010-04-22 Thread Anthony Liguori
On 03/17/2010 02:49 PM, Michael Tokarev wrote: I remember quite long discussion about this issue a while back. But unfortunately, a) I can't find it now, and b) as far as I remember, there was no definitive solution presented at that time. So I thought it's Ok to ask again to get more conclusiv

Re: [Qemu-devel] Locking block devices for concurrent access?

2010-04-22 Thread Michael Tokarev
Ping? ;) What's the current state and/or a roadmap? Thanks! 17.03.2010 22:49, Michael Tokarev wrote: I remember quite long discussion about this issue a while back. But unfortunately, a) I can't find it now, and b) as far as I remember, there was no definitive solution presented at that time.

[Qemu-devel] Locking block devices for concurrent access?

2010-03-17 Thread Michael Tokarev
I remember quite long discussion about this issue a while back. But unfortunately, a) I can't find it now, and b) as far as I remember, there was no definitive solution presented at that time. So I thought it's Ok to ask again to get more conclusive answer... The original problem is that current