netdev - Re: [PATCH v2 02/47] mm: shrinker: remove redundant shrinker

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Message-Id: <210C013C-AB14-45BC-AB2E-199FF7F5E523@linux.dev>
Date: Tue, 25 Jul 2023 11:17:24 +0800
From: Muchun Song <muchun.song@...ux.dev>
To: Qi Zheng <zhengqi.arch@...edance.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
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Subject: Re: [PATCH v2 02/47] mm: shrinker: remove redundant shrinker_rwsem in
 debugfs operations

> On Jul 24, 2023, at 17:43, Qi Zheng <zhengqi.arch@...edance.com> wrote:
> 
> The debugfs_remove_recursive() will wait for debugfs_file_put() to return,
> so the shrinker will not be freed when doing debugfs operations (such as
> shrinker_debugfs_count_show() and shrinker_debugfs_scan_write()), so there
> is no need to hold shrinker_rwsem during debugfs operations.
> 
> Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>

Reviewed-by: Muchun Song <songmuchun@...edance.com>

Thanks.