On Thu, Jun 21 2018 at 5:35pm -0400, John Pittman <jpittman@xxxxxxxxxx> wrote: > Due to commit 629d0a8a1a10 ("dm cache metadata: add "metadata2" feature"), > when creating a dm cache device, more than one io_mode can be selected. > As the io_mode selections are incompatible with one another, we should > force them to be selected exclusively. Add simple ctr to check for > more than one io_mode selection. I'm missing why you're associating your fix with commit 629d0a8a1a10. Can you explain what you did to hit a problem that this patch is fixing? Did you list conflicting modes on the ctr and the last one in the table line won? Thanks, Mike -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel