UP kernel building broken

[Simon 'corecode' Schubert]

Sepherosa Ziehau wrote:
UP kernel building is broken:
/usr/src/sys/vfs/hammer/hammer_vnops.c: In function 'hammer_vop_read':
/usr/src/sys/vfs/hammer/hammer_vnops.c:250: error: 'struct thread' has
no member named 'td_mpcount'
This keeps happening.  Either we make sure that UP also builds before we push changes, or we merge UP and SMP, i.e. remove the compile-time UP optimizations.

cheers
 simon