Addi­tion­al FEATURE macros on the way

It seems I have a bit of free time now to take care about some FreeB­SD relat­ed things.

As part of this I already com­mit­ted the UFS/FFS relat­ed FEATURE macros which where devel­oped by kibab@ dur­ing the Google Sum­mer of Code 2010. The net­work/ALTQ relat­ed FEATURE macros are in the hands of bz@, he already reviewed them and wants to com­mit them (with some changes) as part of his improve­ments of parts of the net­work relat­ed code.

The GEOM relat­ed FEATURE macros I just send some min­utes ago to geom@ for review. All the rest went out to hackers@ for review. The rest in this case is relat­ed to AUDIT, CAM, IPC, KTR, MAC, NFS, NTP, PMC, SYSV and a few oth­er things.

If every­thing is com­mit­ted, it should look a bit like this if queried from user­land (not all fea­tures are shown, those are just the ones which are enabled in the ker­nel in one of my machines):

kern.features.scbus: 1
kern.features.geom_vol: 1
kern.features.geom_part_bsd: 1
kern.features.geom_part_ebr_compat: 1
kern.features.geom_part_ebr: 1
kern.features.geom_part_mbr: 1
kern.features.kposix_priority_scheduling: 1
kern.features.kdtrace_hooks: 1
kern.features.ktrace: 1
kern.features.invariant_support: 1
kern.features.compat_freebsd7: 1
kern.features.compat_freebsd6: 1
kern.features.pps_sync: 1
kern.features.stack: 1
kern.features.sysv_msg: 1
kern.features.sysv_sem: 1
kern.features.sysv_shm: 1
kern.features.posix_shm: 1
kern.features.ffs_snapshot: 1
kern.features.softupdates: 1
kern.features.ufs_acl: 1

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