Accumulate directory entries in a fixed-length sbuf, and uiomove them in one go before returning.  This avoids calling uiomove() while holding allproc_lock.
Accumulate directory entries in a fixed-length sbuf, and uiomove them in
one go before returning.  This avoids calling uiomove() while holding
allproc_lock.

Don't adjust uio->uio_offset manually, uiomove() does that for us.

Don't drop allproc_lock before calling panic().

Suggested by:	alfred

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase