Implement setting/clearing IsSM port capability bit from userspace via "issm"
special files (set IsSM bit on open, clear on close).
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>