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SubjectRe: [PATCH][RFC 3] cleaning up struct sock
Em Thu, Dec 20, 2001 at 12:21:26AM -0800, David S. Miller escreveu:
> From: Arnaldo Carvalho de Melo <>
> Date: Thu, 20 Dec 2001 01:23:39 -0200
> Available at:
> sock.cleanup-2.5.1.patch.bz2
> Looking pretty good. I have one improvement.
> I'd rather you pass the "kmem_cache_t" directly into sk_alloc, use
> NULL for "I don't have any extra private area".

humm I did that with sock_register to avoid changing all the sk_alloc
users, but in the end all protocols were changed so... ok, I'll do that, at
least it'll simplify the "rtnetlink socket allocated early in the boot
process before sock_register(rtnetlink) was called".

> And then, for the IP case lay it out like this:
> struct sock
> struct ip_opt
> struct {tcp,raw4,...}_opt
> And use different kmem_cache_t's for each protocol instead of
> the same one for tcp, raw4, etc.
> RAW/UDP sockets waste a lot of space with your current layout.


Ok, ok, lets save more bytes 8) I'll look into this.

- Arnaldo
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