linux-kernel - Re: [PATCH v2, RESEND 08/10] ocfs2: convert to kobject_del_and

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Date:   Mon, 20 Mar 2023 11:35:05 +0800
From:   Joseph Qi <joseph.qi@...ux.alibaba.com>
To:     Yangtao Li <frank.li@...o.com>, Mark Fasheh <mark@...heh.com>,
        Joel Becker <jlbec@...lplan.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        ocfs2-devel@....oracle.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2, RESEND 08/10] ocfs2: convert to kobject_del_and_put()



On 3/19/23 5:26 PM, Yangtao Li wrote:
> Use kobject_del_and_put() to simplify code.
> 
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: "Rafael J. Wysocki" <rafael@...nel.org>
> Signed-off-by: Yangtao Li <frank.li@...o.com>
> ---
>  fs/ocfs2/filecheck.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/fs/ocfs2/filecheck.c b/fs/ocfs2/filecheck.c
> index 1ad7106741f8..fb9cf601245b 100644
> --- a/fs/ocfs2/filecheck.c
> +++ b/fs/ocfs2/filecheck.c
> @@ -198,8 +198,7 @@ void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb)
>  	if (!osb->osb_fc_ent.fs_fcheck)
>  		return;
>  
> -	kobject_del(&osb->osb_fc_ent.fs_kobj);
> -	kobject_put(&osb->osb_fc_ent.fs_kobj);
> +	kobject_del_and_put(&osb->osb_fc_ent.fs_kobj);
>  	wait_for_completion(&osb->osb_fc_ent.fs_kobj_unregister);
>  	ocfs2_filecheck_sysfs_free(&osb->osb_fc_ent);
>  }

Can't find any implementation of kobject_del_and_put() in mainline.
So I guess you've introduced it at the beginning of this series? Since I
can only see this one:(
So it depends on kobject lib. If kobject lib accepts this helper, it's
fine to me.

Thanks,
Joseph