K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2005-09-15T20:28:56.000000Z
K 7
svn:log
V 562
Merge fifo_vnops.c:1.118 from HEAD to RELENG_6:

  Only poll the fifo for read events if the fifo is attached to a readable
  file descriptor.  Otherwise, the read end of a fifo might return that it
  is writable (which it isn't).

  Only poll the fifo for write events if the fifo attached to a writable
  file descriptor.  Otherwise, the write end of a fifo might return that
  it is readable (which it isn't).

  In the event that a file is FREAD|FWRITE (which is allowed by POSIX, but
  has undefined behavior), we poll for both.

Approved by:	re (kensmith)

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