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Date: Fri, 23 Feb 2018 03:16:54 +0000
From: Al Viro <viro@ZenIV.linux.org.uk>
To: John Ogness <john.ogness@linutronix.de>
Cc: linux-fsdevel@vger.kernel.org,
        Linus Torvalds <torvalds@linux-foundation.org>,
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Subject: Re: [PATCH v2 4/6] fs/dcache: Avoid the try_lock loops in
 dentry_kill()
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On Fri, Feb 23, 2018 at 03:12:14AM +0000, Al Viro wrote:

> 	/* retain_dentry() needs ->count == 1 already checked)

... obviously not even compile-tested ;-)