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 problems. It MUST always be correct, if you can't make it always correct don't do it. -- Darren J Moffat
