mm-print-more-information-about-mapping-in-__dump_page-fix-2

mm-print-more-information-about-mapping-in-__dump_page-fix-2

use %dp to print dentry

Link: http://lkml.kernel.org/r/20181125080834.GB12455@dhcp22.suse.cz
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>