x86/mm: Add 'step_size' comments to init_mem_mapping()
authorYinghai Lu <yinghai@kernel.org>
Sat, 7 Sep 2013 02:07:09 +0000 (19:07 -0700)
committerIngo Molnar <mingo@kernel.org>
Tue, 10 Sep 2013 07:51:34 +0000 (09:51 +0200)
commit6979287a7df66a92d6f308338e972a406f9ef842
treec04cb205eb63143b9d41894e190008fe575ac66d
parent816434ec4a674fcdb3c2221a6dffdc8f34020550
x86/mm: Add 'step_size' comments to init_mem_mapping()

Current code uses macro to shift by 5, but there is no explanation
why there's no worry about an overflow there.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Jacob Shin <jacob.shin@amd.com>
Link: http://lkml.kernel.org/r/1378519629-10433-1-git-send-email-yinghai@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/mm/init.c