From: Linus Torvalds <torvalds@linux-foundation.org>
To: Mateusz Guzik <mjguzik@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org, brauner@kernel.org, jack@suse.cz,
paul@paul-moore.com, axboe@kernel.dk, audit@vger.kernel.org,
io-uring@vger.kernel.org
Subject: Re: [RFC][PATCH 10/13] get rid of audit_reusename()
Date: Sun, 9 Nov 2025 14:41:58 -0800 [thread overview]
Message-ID: <CAHk-=wj5GSLaqf+rVE6u-4-rzdUK+OM_oUnPLQoqVY4J_F0uRw@mail.gmail.com> (raw)
In-Reply-To: <CAGudoHHA_dDXMZFh1=U=AjPsqK9PRUGq3fQ_GjOdebUBK-sn3g@mail.gmail.com>
On Sun, 9 Nov 2025 at 14:33, Mateusz Guzik <mjguzik@gmail.com> wrote:
>
> The programs which pass in these "too long" names just keep doing it,
Sure. So what?
We optimize for the common case.
Sure, there's an extra SMAP sequence for people using longer names,
but while those SMAP things are costly compared to individual
instructions, they aren't costly in the *big* picture.
They are a pipeline stall, not some kind of horrendous thing.
It would be *more* expensive to try to keep statistics than it is to
just say "long pathnames are more expensive than short ones".
Linus
next prev parent reply other threads:[~2025-11-09 22:42 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-09 6:37 [RFC][PATCH 00/13] io_uring, struct filename and audit Al Viro
2025-11-09 6:37 ` [RFC][PATCH 01/13] do_faccessat(): import pathname only once Al Viro
2025-11-13 10:11 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 02/13] do_fchmodat(): " Al Viro
2025-11-13 10:12 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 03/13] do_fchownat(): " Al Viro
2025-11-13 10:13 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 04/13] do_utimes_path(): " Al Viro
2025-11-13 10:15 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 05/13] chdir(2): " Al Viro
2025-11-13 10:16 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 06/13] chroot(2): " Al Viro
2025-11-13 10:18 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 07/13] user_statfs(): " Al Viro
2025-11-13 10:18 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 08/13] do_sys_truncate(): " Al Viro
2025-11-13 10:18 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 09/13] do_readlinkat(): " Al Viro
2025-11-13 10:20 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 10/13] get rid of audit_reusename() Al Viro
2025-11-09 19:18 ` Linus Torvalds
2025-11-09 19:55 ` Mateusz Guzik
2025-11-09 20:22 ` Linus Torvalds
2025-11-09 22:18 ` Mateusz Guzik
2025-11-09 22:29 ` Linus Torvalds
2025-11-09 22:33 ` Mateusz Guzik
2025-11-09 22:39 ` Mateusz Guzik
2025-11-09 22:41 ` Linus Torvalds [this message]
2025-11-09 22:44 ` Linus Torvalds
2025-11-09 23:07 ` Linus Torvalds
2025-11-09 22:18 ` Linus Torvalds
2025-11-10 5:17 ` Al Viro
2025-11-10 16:41 ` Linus Torvalds
2025-11-10 19:58 ` Al Viro
2025-11-10 20:52 ` Linus Torvalds
2025-11-11 1:16 ` Al Viro
2025-11-12 9:26 ` Christian Brauner
2025-11-10 6:05 ` Al Viro
2025-11-10 6:36 ` Al Viro
2025-11-10 16:50 ` Linus Torvalds
2025-11-10 23:13 ` Paul Moore
2025-11-11 0:23 ` Paul Moore
2025-11-13 10:29 ` Jan Kara
2025-11-09 6:37 ` [RFC][PATCH 11/13] allow incomplete imports of filenames Al Viro
2025-11-11 0:45 ` Paul Moore
2025-11-11 14:41 ` Jens Axboe
2025-11-19 1:12 ` Al Viro
2025-11-19 1:14 ` Al Viro
2025-11-19 5:41 ` Al Viro
2025-11-09 6:37 ` [RFC][PATCH 12/13] fs: touch up predicts in putname() Al Viro
2025-11-09 6:37 ` [RFC][PATCH 13/13] struct filename ->refcnt doesn't need to be atomic Al Viro
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