Re: [PATCH V2 1/4] zram: fix race between zram_reset_device() and disksize_store()

[Luis Chamberlain]

On Wed, Oct 20, 2021 at 09:55:45AM +0800, Ming Lei wrote:
> When the ->init_lock is released in zram_reset_device(), disksize_store()
> can come in and try to allocate meta, but zram_reset_device() is freeing
> free meta, so cause races.
> 
> Link: https://lore.kernel.org/linux-block/20210927163805.808907-1-mcgrof@xxxxxxxxxx/T/#mc617f865a3fa2778e40f317ddf48f6447c20c073
> Reported-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>

Reviewed-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>

  Luis