Re: [PATCH v5 6/7] module: Improve support for asynchronous module exit code

From: Bart Van Assche
Date: Thu Sep 29 2022 - 13:27:27 EST


On 9/28/22 18:10, Ming Lei wrote:
On Wed, Sep 28, 2022 at 12:27:07PM -0700, Bart Van Assche wrote:
How about removing support for calling scsi_device_put() from atomic context
as is done in the untested patch below?

That can't work.

The problem is that no existed mechanism can guarantee that kobject reference
drops to zero inside module_exit().

Hi Ming,

I agree that the patch in my previous email won't address potential calls of
.release functions while a module is being unloaded or after a module has been
unloaded. However, that's not the purpose of that patch. The purpose of that
patch is to rework all code that modifies members of the scsi host template.

Thanks,

Bart.