linux-kernel - Re: [PATCH 2/2] erofs: use sync decompression for atomic contexts only

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Message-ID: <62153424-198c-807e-cced-33dd90279174@huawei.com>
Date:   Wed, 17 Mar 2021 14:45:52 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Huang Jianan <huangjianan@...o.com>, <linux-erofs@...ts.ozlabs.org>
CC:     <linux-kernel@...r.kernel.org>, <guoweichao@...o.com>,
        <zhangshiming@...o.com>
Subject: Re: [PATCH 2/2] erofs: use sync decompression for atomic contexts
 only

On 2021/3/17 11:54, Huang Jianan via Linux-erofs wrote:
> Sync decompression was introduced to get rid of additional kworker
> scheduling overhead. But there is no such overhead in non-atomic
> contexts. Therefore, it should be better to turn off sync decompression
> to avoid the current thread waiting in z_erofs_runqueue.
> 
> Signed-off-by: Huang Jianan <huangjianan@...o.com>
> Signed-off-by: Guo Weichao <guoweichao@...o.com>
> Reviewed-by: Gao Xiang <hsiangkao@...hat.com>

Reviewed-by: Chao Yu <yuchao0@...wei.com>

Thanks,