Subject: Handling of device special files in BSD vnode/vfs
To: None <tech-kern@NetBSD.ORG>
From: Vasanth Kanchan <Vasanth_Kanchan@s3.com>
Date: 03/03/1997 14:02:20
The vnode/vfs code prevents opening of device special files if it is
mounted or prevents mounting of the file if it has been opened.
However consider the case where 2 different file names either on the
same filesystem or different filesystem map to the same device. If
these files are opened, the read/write will be cached through their
repective vnode's with unpredictable results. Is this correct ?. I
haven't seen anything in the code that would preclude this situation.
What does checkaliases() do?
Thanks for your responses.