Re: [RFC PATCH 0/4] KEYS: sanitize the garbage collector behavior

[Jarkko Sakkinen]

On Mon, Nov 02, 2026 at 02:15:11PM +0200, Jarkko Sakkinen wrote:
> 1. Remove key_type_dead and replace it with the regular module semantics.
> 2. Replace variable size workqueue items with fixed-size 64 key chunks.
> 
> The first change has user space visible effect: rmmod semantics will change
> from always succeeding into returning -EBUSY when keys or restrictions have
> the LKM pinned.
> 
> Jarkko Sakkinen (4):
>   KEYS: trusted: Disable sysfs bind attributes for TEE driver
>   KEYS: Pin the backing module for struct key_type
>   KEYS: Remove key_type_dead
>   KEYS: key_garbage_collector(): process in chunks
> 
>  include/linux/key-type.h                 |   6 +-
>  security/keys/gc.c                       | 249 ++++++++---------------
>  security/keys/internal.h                 |   7 +-
>  security/keys/key.c                      |  46 +++--
>  security/keys/keyring.c                  |  84 +++-----
>  security/keys/trusted-keys/trusted_tee.c |   1 +
>  6 files changed, 148 insertions(+), 245 deletions(-)
> 
> --
> 2.47.3
> 

cc: keyring

Br, Jarkko