On Wed, Jan 26, 2011 at 04:49:14PM -0500, Mark Lord wrote:

Or perhaps get rid of that unworkable "version number" thing
(just freeze it in time with the 2.6.35 value returned),
and implement a "get_feature_flags" ioctl or something for going forward.
Then you can just turn on new bits in the flags as new features are added.

That could be done but I do not expect retire features so far so version
is about the same. Plus, what guarantees that someone in the future
won't write a utility that compares exact capability bitmap and refuse
to work when new ones will be added?

-- 
Dmitry