Re: [PATCH v1 net-next 2/4] af_unix: Move internal definitions to net/unix/.

[Kuniyuki Iwashima <kuniyu@amazon.com>]

From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Date: Wed, 19 Mar 2025 13:49:31 -0400
> Kuniyuki Iwashima wrote:
> > net/af_unix.h is included by core and some LSMs, but most definitions
> > need not be.
> > 
> > Let's move struct unix_{vertex,edge} to net/unix/garbage.c and other
> > definitions to net/unix/af_unix.h.
> > 
> > Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
> 
> One trade-off with these kinds of refactors is that it adds an
> indirection in git history: a git blame on a line no longer points to
> the relevant commit.

Right, and git has a useful option for that.


> 
> Whether the trade-off is worth it is subjective, your call. Just
> making it explicit.
> 
> I still manually check out pre UDP/UDPLite split often to go back in
> udp history, for instance.

I often use -C5 (track 5 times for line/file moves) and hope this
helps you :)

$ git blame -C1 net/unix/af_unix.h 
Blaming lines: 100% (75/75), done.
b24413180f5600 include/net/af_unix.h               (Greg Kroah-Hartman       2017-11-01 15:07:57 +0100  1) /* SPDX-License-Identifier: GPL-2.0 */
d48846033064e3 net/unix/af_unix.h                  (Kuniyuki Iwashima        2025-03-15 00:54:46 +0000  2) #ifndef __AF_UNIX_H
d48846033064e3 net/unix/af_unix.h                  (Kuniyuki Iwashima        2025-03-15 00:54:46 +0000  3) #define __AF_UNIX_H
d48846033064e3 net/unix/af_unix.h                  (Kuniyuki Iwashima        2025-03-15 00:54:46 +0000  4) 
cae9910e73446c net/unix/diag.c                     (Felipe Gasper            2019-05-20 19:43:51 -0500  5) #include <linux/uidgid.h>
^1da177e4c3f41 include/net/af_unix.h               (Linus Torvalds           2005-04-16 15:20:36 -0700  6) 

Thanks!