linux-kernel - Re: [PATCH V4 3/6] erofs: introduce fscache-based domain

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Message-ID: <96a96aff-5d16-a2e3-2529-58e154e0f728@linux.alibaba.com>
Date:   Fri, 16 Sep 2022 10:35:54 +0800
From:   JeffleXu <jefflexu@...ux.alibaba.com>
To:     Jia Zhu <zhujia.zj@...edance.com>, linux-erofs@...ts.ozlabs.org
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        yinxin.x@...edance.com
Subject: Re: [PATCH V4 3/6] erofs: introduce fscache-based domain



On 9/15/22 8:42 PM, Jia Zhu wrote:
>  
> +static void erofs_fscache_domain_put(struct erofs_domain *domain)
> +{
> +	if (!domain)
> +		return;
> +	mutex_lock(&erofs_domain_list_lock);
> +	if (refcount_dec_and_test(&domain->ref)) {
> +		list_del(&domain->list);
> +		fscache_relinquish_volume(domain->volume, NULL, false);
> +		mutex_unlock(&erofs_domain_list_lock);

I think we can mutex_unlock as long as the domain is removed from the list.


Otherwise LGTM.
Reviewed-by: Jingbo Xu <jefflexu@...ux.alibaba.com>

-- 
Thanks,
Jingbo