On Wed, 15 Jan 2025 21:26:03 +0100, Jann Horn wrote:
> The locking in the buffer cloning code is somewhat complex because it goes
> back and forth between locking the source ring and the destination ring.
>
> Make it easier to reason about by locking both rings at the same time.
> To avoid ABBA deadlocks, lock the rings in ascending kernel address order,
> just like in lock_two_nondirectories().
>
> [...]
Applied, thanks!
[1/1] io_uring/rsrc: Simplify buffer cloning by locking both rings
commit: 8865af703c087b8bcc2fdd04b6a93d3cc0fb0e9f
Best regards,
--
Jens Axboe
