Re: shmfs/tmpfs/vm-fs

Christoph Rohland
2001-12-07T15:07:44Z

Hi Lothar,

On Fri, 7 Dec 2001, der erste Schuettler wrote:
> thanks for the paper but, with sysvipc, are msyncs still needed, to
> keep the shared pages in sync with the file on the tmpfs?

Of course not. sync on tmpfs does nothing.

> You could use the same pages for all... tmpfs ist cool, is it
> possible to change the permissions on an shared object or istead of
> shmctl IPC_RMID just use rm /de/shm/SYSVblablub?

It was possible in some 2.3 kernels, but this had to be removed with
the cleanup :-(