From 2926620145095ffb0350b2312ac9d0af8537796f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 30 May 2014 11:39:02 -0400
Subject: [PATCH] dcache.c: call ->d_prune() regardless of d_unhashed()

the only in-tree instance checks d_unhashed() anyway,
out-of-tree code can preserve the current behaviour by
adding such check if they want it and we get an ability
to use it in cases where we *want* to be notified of
killing being inevitable before ->d_lock is dropped,
whether it's unhashed or not.  In particular, autofs
would benefit from that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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