On Mon, Nov 18, 2013 at 02:27:47PM -0800, Andy Grover wrote: > On 11/15/2013 05:22 PM, Shaohua Li wrote: > >This is a userspace backend, which allows handling requests in application. It > >would be useful if complex data transformation is required. Patch 2 description > >has more details about it. Attached is the simple test application I used. > >Comment is welcome! > > I don't have any specific comments about the implementation yet > (hopefully soon), but I think this capability would be extremely > useful. > > btw are you aware of aBUSE from 2009? > > http://thread.gmane.org/gmane.linux.kernel/869784 > > Not that all those criticisms apply to this, but just in case > somebody brings it up... Don't know about this patch, but I thought about a userspace block device too. I thought it's hard to make zero-copy with userspace block device, because bio already has data attached, mapping the data to userspace isn't easy/efficient. -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
