K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2007-04-23T18:08:59.000000Z
K 7
svn:log
V 529
MFC: Don't go to a whole lot of extra work to handle the race where the
new file descriptor is closed out from under us in kern_open().  This race
is already handled and the file will be closed when kern_open() does an
fdrop just before returning.

In addition, by handling the race early, this opens the code up to an
obscure bug where opening a devfs file could replace f_ops in the file
object so that fdrop() will try to close the vnode, but f_vnode never gets
set, so the vnode close routine panics due to the NULL f_vnode.

END