Re: [PATCH] unified SysV and Posix mqueues as FS

[Peter Waechtler]

Alexander Viro schrieb:
> 
> On Sun, 27 Oct 2002, Peter Waechtler wrote:
> 
> > I applied the patch from Jakub against 2.5.44
> > There are still open issues but it's important to get this in before
> > feature freeze.
> >
> > While you can implement Posix mqueues in userland (Irix is doing this
> > with fcntl(fd,F_SETLKW,) and shmem) a kernel implementation has some advantages:
> 
> *thud*
> 
> ioctls on _directories_, of all things?

Parden? Where are directories used?
create a file, give it a size, mmap it and serialize access to it with locks.
That's all.