Re: block: sleeping in atomic warnings
From: Yu Kuai
Date: Tue Feb 07 2023 - 22:15:37 EST
Hi,
在 2023/02/08 2:31, Jens Axboe 写道:
block/blk-wbt.c:843 wbt_init() warn: sleeping in atomic context
ioc_qos_write() <- disables preempt
-> wbt_enable_default()
-> wbt_init()
Also definitely a bug.
This won't happen currently, wbt_init() will be called while
initializing device, and later wbt_enable_devault() from iocost won't
call wbt_init().
However, we might support rq_qos destruction dynamically in the
future, I'll fix this warning.
Thanks,
Kuai