LingBo Tang wrote:
> - current VT usage model is not match with devname as other cases,
> like pts and clearview;
> - manage active link as symlink in devname filesystem requests expand
> current devname.
> - VT daemon can update the contents of "active link" by two syscalls,
> which only have a very small time window for potential incorrect
> plug-in device accessing.
very small ?
No window of incorrectness is acceptable, since a race condition like
this could lead to possible incorrect permissions and this security
It MUST always be correct, if you can't make it always correct don't do it.
Darren J Moffat