K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2014-10-31T09:25:28.471585Z
K 7
svn:log
V 589
filedesc: make fdinit return with source filedesc locked and new one sized
appropriately

Assert FILEDESC_XLOCK_ASSERT only for already used tables in fdgrowtable.
We don't have to call it with the lock held if we are just creating new
filedesc.

As a side note, strictly speaking processes can have fdtables with
fd_lastfile = -1, but then they cannot enter fdgrowtable. Very first file
descriptor they get will be 0 and the only syscall allowing to choose fd number
requires an active file descriptor. Should this ever change, we can add an 'init'
(or similar) parameter to fdgrowtable.

END