On Mon, 30 Jun 2025 19:28:28 +0800, Yu Kuai wrote:
> __xa_cmpxchg() is called with rcu_read_lock(), and it will allocate
> memory if necessary.
>
> Fix the problem by moving rcu_read_lock() after __xa_cmpxchg(), meanwhile,
> it still should be held before xa_unlock(), prevent returned page to be
> freed by concurrent discard.
>
> [...]
Applied, thanks!
[1/1] brd: fix sleeping function called from invalid context in brd_insert_page()
commit: 0d519bb0de3bf0ac9e6f401d4910fc119062d7be
Best regards,
--
Jens Axboe
