[openib-general] is_sm bit redux

[Hal Rosenstock]

Hi,

I would like to make a call for consensus on the is_sm bit. It seems
like there are two alternatives: (1) separate file, or (2) special
write.

Are there any strong technical reasons for choosing one approach over
the other ? Is a separate file any better or worse than a special write
?

If not, can one be chosen and just move on ? Given the Linux way, we can
always undo this if we learn more down the road.

Thanks.

-- Hal