VROOT flag is set in union_allocvp
pass V_SAVE to vinvalbuf
change tag in mnt_stat structure so thatthe mounted filesystem appears as<above>/some/where, instead of un-above:/some/where
in mount, do the target lookup with thereal user, not the effective user. ie simulate access().
add privilege checks etc to support user mounts
implement new access policyfixup locking for UNMNT_BELOW.
re-order locking to avoid races
cleanup formatting
date and time created 94/02/15 06:55:14 by pendry
date and time created 94/02/15 06:52:39 by pendry
fixup the link count on directories
union_statfs should identify itself, not the upper layer
fix reference counts in union_vn_create and union_mkshadow
make sure open(..., O_TRUNC) works right.
use miscfs include path
up to v8
cleanup & lint
disallow read from the root directory
new locking scheme
checkpoint
minor security change for setuid processes
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