7 Apr
2025
7 Apr
'25
12:37 a.m.
On Mon, Apr 07, 2025 at 03:10:45AM +0300, Jarkko Sakkinen wrote:
From: Jarkko Sakkinen jarkko.sakkinen@opinsys.com
Add an isolated list of unreferenced keys to be queued for deletion, and try to pin the keys in the garbage collector before processing anything. Skip unpinnable keys.
Use this list for blocking the reaping process during the teardown:
- First off, the keys added to `keys_graveyard` are snapshotted, and the list is flushed. This the very last step in `key_put()`.
- `key_put()` reaches zero. This will mark key as busy for the garbage collector.
- `key_garbage_collector()` will try to increase refcount, which won't go above zero. Whenever this happens, the key will be skipped.
Cc: stable@vger.kernel.org # v6.1+ Signed-off-by: Jarkko Sakkinen jarkko.sakkinen@opinsys.com
Rebase went wrong:
https://lore.kernel.org/keyrings/20250407003622.22139-1-jarkko@kernel.org/T/...
BR, Jarkko