swap-add-per-partition-lock-for-swapfile-fix-fix-fix-fix

swap-add-per-partition-lock-for-swapfile-fix-fix-fix-fix

Fix building errors like:
> arch/sparc/mm/init_32.c: In function 'show_mem':
> arch/sparc/mm/init_32.c:60:23: error: invalid operands to binary << (have 'atomic_long_t' and 'int')

Signed-off-by: Shaohua Li <shli@fusionio.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>