to store disk quota usage and limits, integrated with ffs
metadata. Usage is checked by fsck_ffs (no more quotacheck)
and is covered by the WAPBL journal. Enabled with kernel
option QUOTA2 (added where QUOTA was enabled in kernel config files),
turned on with tunefs(8) on a per-filesystem
basis. mount_mfs(8) can also turn quotas on.
See http://mail-index.netbsd.org/tech-kern/2011/02/19/msg010025.html
for details.
that's in that directory. Fixes compile issue on (older source ?) arm
systems noted by Richard Earnshaw.
XXX: arguably a better version of sys/exec_elf.h (and others) should
be in ../compat instead, but that's a problem for another day.