Re: [PATCH v7 05/28] dma-heap: Add proper kref handling on dma-buf heaps
From: Markus Elfring
Date: Sat Jul 20 2024 - 11:14:33 EST
…
> +++ b/drivers/dma-buf/dma-heap.c
…
> +static void dma_heap_release(struct kref *ref)
> +{
…
> + mutex_lock(&heap_list_lock);
> + list_del(&heap->list);
> + mutex_unlock(&heap_list_lock);
…
Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&heap_list_lock);”?
https://elixir.bootlin.com/linux/v6.10/source/include/linux/mutex.h#L196
Regards,
Markus