linux-kernel - Re: [RESEND PATCH] kernfs: Avoid re-adding kernfs_node into kernfs_notify

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Date:   Fri, 8 Jul 2022 17:58:51 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Imran Khan <imran.f.khan@...cle.com>
Cc:     Tejun Heo <tj@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Rob Herring <robh@...nel.org>,
        "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Guillaume Tucker <guillaume.tucker@...labora.com>,
        Petr Mladek <pmladek@...e.com>
Subject: Re: [RESEND PATCH] kernfs: Avoid re-adding kernfs_node into kernfs_notify_list.

On Fri, Jul 1, 2022 at 5:49 PM Imran Khan <imran.f.khan@...cle.com> wrote:

...

> +       if (kn->attr.notify_next.next != NULL) {

Isn't there a helper to get next pointer from an llist pointer?

> +               kernfs_get(kn);
> +               llist_add(&kn->attr.notify_next, &kernfs_notify_list);
> +               schedule_work(&kernfs_notify_work);
> +       }

-- 
With Best Regards,
Andy Shevchenko