Re: [PATCH v2 4/5] blk-iocost: fix sleeping in atomic context warnning
From: Yu Kuai <hidden>
Date: 2022-11-23 10:38:48
Also in:
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From: Yu Kuai <hidden>
Date: 2022-11-23 10:38:48
Also in:
cgroups, lkml
Hi, Tejun 在 2022/11/23 8:42, Tejun Heo 写道:
On Tue, Nov 22, 2022 at 05:14:29PM -0700, Jens Axboe wrote:quoted
quoted
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Then match_strdup() and kfree() in match_NUMBER() can be replaced with get_buffer() and put_buffer().Sorry about the late reply. Yeah, something like this.
Thanks for the feedback. I'll remove patch 4 from this seies and send a new patch separately soon. Thanks, Kuai
quoted
Doesn't local_irq_disable() imply preemption disable as well?Right, I was thinking about spin_lock_irq() which doesn't imply disabling preemption in PREEMPT_RT. local_irq_disable() is actual irq disable even on RT. It should be fine on its own. Thanks.