I have had a patch kicking around for a while that I finally decided to beat into committable form, that brings the reference count into the m_ext structure. Currently there are very few users of M_EXT so I just modified them all to manage the refcount manually with atomic ops. Would we prefer this were functionalized, like FreeBSD has done?
Also, It would be great if we could stuff a lwbuf into m_ext, but the only reasonable way I can see to do that is to add an additional function pointer which would be used to get the stable reference, as well as probably an offset, calling conventions would be slightly different for free in this case, and that route just doesn't feel very clean... So I was wondering if anyone had any suggestions? Thanks, Sam
