Re: [PATCH V2 1/4] zram: fix race between zram_reset_device() and disksize_store()
From: Luis Chamberlain <mcgrof@kernel.org>
Date: 2021-10-21 23:03:15
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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@kernel.org/T/#mc617f865a3fa2778e40f317ddf48f6447c20c073 (local) Reported-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Ming Lei <redacted>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Luis