Re: [PATCH v9 2/3] KEYS: Replace assoc_array with rhashtable

[sashiko-bot@kernel.org]

> The keyrings subsystem is the sole user of assoc_array. It has over 1700
> lines of code, no test suite, and a long history of bugs, with LLMs now
> finding more.
> 
> This unfortunate outcome has evolved over time by large from the shortage
> of in-kernel callers, time bandwidth and 3rd party contributors.
> 
> What the keyrings needs is just a generic key-value store, which performs
> well with sparse key sets.
> 
> Replace struct assoc_array in struct key with struct keyring_index:
> 
> - keyring_index: holds an rhashtable for direct lookups, an RCU-protected
>   list of keyring_link entries for stable walks, the active link count, and
>   an rcu_work item for deferred teardown.
> [ ... ]
> Suggested-by: Eric Biggers <ebiggers@kernel.org>
> Co-developed-by: Linus Torvalds <torvalds@linux-foundation.org>
> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
> Reviewed-by: Eric Biggers <ebiggers@kernel.org>
> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261110053323.2936729-1-jarkko@kernel.org?part=2