We should have XIP support for GFS2. This can be tested with a ram disk now, so no special hardware is required.
Created attachment 326336 [details] Initial patch, still need some work This still needs some work, so don't get too excited yet.... but I've just updated it since the original was suffering from bitrot. Its updated to apply after the pending patch to merge lock_dlm. I would not expect to merge this until that patch has gone in at least. Also required are a couple of new files, which I'll attach in a moment.
Created attachment 326337 [details] The guts of the thing
Created attachment 326338 [details] The header file to go with it
Updating bug subject to reflect new name upstream.