mm: print out information of file affected by memory error

mm: print out information of file affected by memory error

Printing out the information about which file can be affected by a memory
error in generic_error_remove_page() is helpful for user to estimate the
impact of the error.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: "Jun'ichi Nomura" <j-nomura@ce.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>