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Date:   Thu, 12 Jul 2018 09:56:05 -0700
From:   Matthew Wilcox <willy@infradead.org>
To:     Waiman Long <longman@redhat.com>
Cc:     Alexander Viro <viro@zeniv.linux.org.uk>,
        Jonathan Corbet <corbet@lwn.net>,
        "Luis R. Rodriguez" <mcgrof@kernel.org>,
        Kees Cook <keescook@chromium.org>,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        linux-mm@kvack.org, linux-doc@vger.kernel.org,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Jan Kara <jack@suse.cz>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Ingo Molnar <mingo@kernel.org>,
        Miklos Szeredi <mszeredi@redhat.com>,
        Larry Woodman <lwoodman@redhat.com>,
        James Bottomley <James.Bottomley@HansenPartnership.com>,
        "Wangkai (Kevin C)" <wangkai86@huawei.com>,
        Michal Hocko <mhocko@kernel.org>
Subject: Re: [PATCH v7 3/6] fs/dcache: Add sysctl parameter neg-dentry-limit
 as a soft limit on negative dentries
Message-ID: <20180712165605.GB3475@bombadil.infradead.org>
References: <1531413965-5401-1-git-send-email-longman@redhat.com>
 <1531413965-5401-4-git-send-email-longman@redhat.com>
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On Thu, Jul 12, 2018 at 12:46:02PM -0400, Waiman Long wrote:
> +int neg_dentry_limit;
> +EXPORT_SYMBOL_GPL(neg_dentry_limit);

Why are you exporting it?  What module needs this?
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