On Tue, Oct 23, 2001 at 02:00:34PM -0500, Alfred Perlstein wrote:
> Yes, you're right, I was mistaken in my paranioa, however you're
> missing the fact that one may want to allocate an EXT buf and still
> have it writeable.
This is the function of M_RDONLY and M_WRITABLE framework which we
put in place in -current about a year ago. I think we set things
up so that sendfilebufs are not writable and so that custom external
storage for jumbo ethernet frames are writeable.
The changes were a bit big to port back to -stable. They involved
moving external storage reference counts into the generic mbuf
system.
David.
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