K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2005-09-16T14:03:57.000000Z
K 7
svn:log
V 972
Merge fifo_vnops.c:1.124 from HEAD to RELENG_6:

  Trim down now (believed to be) unused fifo_ioctl() and
  fifo_kqfilter() VOP implementations, since they in theory are used
  only on open file descriptors, in which case the ioctls are via
  fifo_ioctl_f() and kqueue requests are via fifo_kqfilter_f().
  Generate warnings if they are entered for now.  These printf()
  calls should become panic() calls.

  Annotate and re-implement fifo_ioctl_f(): don't arbitrarily
  forward ioctls to the socket layer, only forward the ones we
  explicitly support for fifos.  In the case of FIONREAD, don't
  forward the request to the write socket on a read-write fifo, or
  the read result is overwritten.  Annotate a nasty case for the
  undefined POSIX O_RDWR on fifos, in which failure of the second
  ioctl will result in the socket pair being in an inconsistent
  state.

  Assert copyright as I find myself rewriting non-trivial parts of
  fifofs.

Approved by:	re (scottl)

END