On 24.08.2013 15:15, Andre Oppermann wrote:
Author: andre
Date: Sat Aug 24 13:15:42 2013
New Revision: 254780
URL: http://svnweb.freebsd.org/changeset/base/254780
Log:
dd a 24 bits wide ext_flags field to m_ext by reducing ext_type
to 8 bits. ext_type is an enumerator and the number of types we
have is a mere dozen.
A couple of ext_types are renumbered to fit within 8 bits.
EXT_VENDOR[1-4] and EXT_EXP[1-4] types for vendor-internal and
experimental local mapping.
The ext_flags field is currently unused but has a couple of flags
already defined for future use. Again vendor and experimental
flags are provided for local mapping.
EXT_FLAG_BITS is provided for the printf(9) %b identifier.
Initialize and copy ext_flags in the relevant mbuf functions.
Improve alignment and packing of struct m_ext on 32 and 64 archs
by carefully sorting the fields.
Sponsored by: The FreeBSD Foundation
--
Andre
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