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Date:   Wed, 25 Oct 2017 16:15:21 +0200
From:   Miklos Szeredi <>
To:     Amir Goldstein <>
Cc:     linux-fsdevel <>,
        Jan Kara <>, Xiong Zhou <>,
        linux-kernel <>
Subject: Re: [PATCH v2 1/7] fsnotify: clean up fsnotify_prepare/finish_user_wait()

On Wed, Oct 25, 2017 at 2:07 PM, Amir Goldstein <> wrote:

>>> -bool fsnotify_prepare_user_wait(struct fsnotify_iter_info *iter_info)
>>> +/*
>>> + * Get mark reference when we found the mark via lockless traversal of object
>>> + * list. Mark can be already removed from the list by now and on its way to be
>>> + * destroyed once SRCU period ends.
>>> + */
>>> +static bool fsnotify_get_mark_safe(struct fsnotify_mark *mark)
> Sorry, hit send too soon...
> This helper is now more than "get mark safe"
> how about fsnotify_get_mark_wait() to pair with fsnotify_put_mark_wait()?

It's get mark and pin mark->group.  I think "safe" describes that
adequately.   Added comments to reflect that.

Also renamed fsnotify_put_mark_wait() to fsnotify_put_mark_wake(),
because that's what it does.


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