K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2004-08-06T22:00:55.000000Z
K 7
svn:log
V 489
Avoid acquiring Giant for some common light-weight or already MPSAFE
fcntl() operations, including:

  F_DUPFD          dup() alias
  F_GETFD          retrieve close-on-exec flag
  F_SETFD          set close-on-exec flag
  F_GETFL          retrieve file descriptor flags

For the remaining fcntl() operations, do acquire Giant, especially
where we call into fo_ioctl() as a result.  We're not yet ready to
push Giant into fo_ioctl().  Once we do, this can all become quite a
bit prettier.

END