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Date:   Tue, 13 Mar 2018 19:58:18 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Al Viro <viro@...IV.linux.org.uk>
Cc:     John Ogness <john.ogness@...utronix.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Christoph Hellwig <hch@....de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Eric Biederman <ebiederm@...ssion.com>
Subject: Re: dcache: remove trylock loops (was Re: [BUG] lock_parent()
 breakage when used from shrink_dentry_list())

On Tue, Mar 13, 2018 at 11:59:30PM +0000, Al Viro wrote:
> Come to think of that, it might make sense to lift rcu_read_lock() all the
> way out of that sucker.  Objections?  Below is the incremental I'd fold into
> that commit:

Looks clearer to me.

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