Re: [PATCH] null_blk: serialize configfs attribute updates with device setup

On Thu, 13 Aug 2026 16:14:56 +0200, Niklas Cassel wrote:
> The attribute store methods generated with NULLB_DEVICE_ATTR() refuse to
> change the configuration of a live device by testing
> NULLB_DEV_FL_CONFIGURED, but that flag is only set by
> nullb_device_power_store() after null_add_dev() has returned, and the
> store methods take no lock at all. configfs only serializes writes to
> the same open file (buffer->mutex), so a write to any attribute can run
> concurrently with null_add_dev() and change the device configuration
> while it is being used.
> 
> [...]

Applied, thanks!

[1/1] null_blk: serialize configfs attribute updates with device setup
      commit: 4e1f23f9c33c156be7e313b40695af5a3a834739

Best regards,
-- 
Jens Axboe