Messages in this thread | | | Date | Wed, 30 May 2007 15:01:47 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: Syslets, Threadlets, generic AIO support, v6 |
| |
On Wed, 30 May 2007, Davide Libenzi wrote: > > I agree. What would be a good interface to allocate fds in such area? We > don't want to replicate syscalls, so maybe a special new dup function?
I'd do it with something like "newfd = dup2(fd, NONLINEAR_FD)" or similar, and just have NONLINEAR_FD be some magic value (for example, make it be 0x40000000 - the bit that says "private, nonlinear" in the first place).
But what's gotten lost in the current discussion is that we probably don't actually _need_ such a private space. I'm just saying that if the *choice* is between memory-mapped interfaces and a private fd-space, we should probably go for the latter. "Everything is a file" is the UNIX way, after all. But there's little reason to introduce private fd's otherwise.
Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |