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Date:   Tue, 13 Mar 2018 19:58:18 -0700
From:   Matthew Wilcox <>
To:     Al Viro <>
Cc:     John Ogness <>,
        Linus Torvalds <>,
        linux-fsdevel <>,
        Christoph Hellwig <>,
        Thomas Gleixner <>,
        Peter Zijlstra <>,
        Sebastian Andrzej Siewior <>,
        Linux Kernel Mailing List <>,
        Eric Biederman <>
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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