linux-kernel - Re: [PATCH v3 0/3] symlink length caching

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Message-ID: <20241121-blatt-akkubetrieben-ad5d655d184a@brauner>
Date: Thu, 21 Nov 2024 13:34:44 +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,
	hughd@...gle.com,
	linux-ext4@...r.kernel.org,
	tytso@....edu,
	linux-mm@...ck.org
Subject: Re: [PATCH v3 0/3] symlink length caching

On Wed, 20 Nov 2024 12:20:33 +0100, Mateusz Guzik wrote:
> quote:
>     When utilized it dodges strlen() in vfs_readlink(), giving about 1.5%
>     speed up when issuing readlink on /initrd.img on ext4.
> 
> The size is stored in a union with i_devices, which is never looked at
> unless the inode is for a device.
> 
> [...]

Applied to the vfs-6.14.misc branch of the vfs/vfs.git tree.
Patches in the vfs-6.14.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-6.14.misc

[1/3] vfs: support caching symlink lengths in inodes
      https://git.kernel.org/vfs/vfs/c/5cbb3c7e0051
[2/3] ext4: use inode_set_cached_link()
      https://git.kernel.org/vfs/vfs/c/740456f67017
[3/3] tmpfs: use inode_set_cached_link()
      https://git.kernel.org/vfs/vfs/c/30071e02c163