svn commit: r210923 - in head/sys: fs/devfs kern sys vm

[Gavin Atkinson]

On Fri, 2010-08-06 at 09:42 +0000, Konstantin Belousov wrote:
> Author: kib
> Date: Fri Aug  6 09:42:15 2010
> New Revision: 210923
> URL: http://svn.freebsd.org/changeset/base/210923
> 
> Log:
>   Add new make_dev_p(9) flag MAKEDEV_ETERNAL to inform devfs that created
>   cdev will never be destroyed. Propagate the flag to devfs vnodes as
>   VV_ETERNVALDEV. Use the flags to avoid acquiring devmtx and taking a
>   thread reference on such nodes.

Does this flag have any effect on unmounting a devfs mount?

Thanks,

Gavin
-- 
Gavin Atkinson
FreeBSD committer and bugmeister