On Fri, Jan 29, 2016 at 01:57:12PM +0000, Alasdair G Kergon wrote: > On Thu, Jan 28, 2016 at 01:50:19PM +0000, Andy Whitcroft wrote: > > However this also removed the possibility of a dm target having target > > specific ioctls. Currently this is not used by any in-tree targets but > > was utilised by the flashcache out-of-tree module. > > What data is being passed in and out? > > The method we support is passing it through DM_TARGET_MSG (as text). > For examples look at dm-switch.c and dm-stats.c, which handled > pretty large quantities of data. > > Would that work? That sounds like it has all the bits one would need indeed. I will investigate that. Thanks for the info. -apw -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
