linux-kernel - Re: [PATCH] fs: touch up predicts in path lookup

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Message-ID: <20251113-schob-gigant-c67723684e5e@brauner>
Date: Thu, 13 Nov 2025 14:23:24 +0100
From: Christian Brauner <brauner@...nel.org>
To: Mateusz Guzik <mjguzik@...il.com>
Cc: Christian Brauner <brauner@...nel.org>,
	viro@...iv.linux.org.uk,
	jack@...e.cz,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] fs: touch up predicts in path lookup

On Wed, 05 Nov 2025 16:06:30 +0100, Mateusz Guzik wrote:
> Rationale:
> - ND_ROOT_PRESET is only set in a condition already marked unlikely
> - LOOKUP_IS_SCOPED already has unlikely on it, but inconsistently
>   applied
> - set_root() only fails if there is a bug
> - most names are not empty (see !*s)
> - most of the time path_init() does not encounter LOOKUP_CACHED without
>   LOOKUP_RCU
> - LOOKUP_IN_ROOT is a rarely seen flag
> 
> [...]

Applied to the vfs-6.19.misc branch of the vfs/vfs.git tree.
Patches in the vfs-6.19.misc branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs-6.19.misc

[1/1] fs: touch up predicts in path lookup
      https://git.kernel.org/vfs/vfs/c/030e86dfdaa7