tree a4302fe87369d15c20bcecd0b38d383af813cef8
parent 9dc00f4c4fdd1fab12a4da9a966e535b4284b0a4
author Zhang Zhen <zhenzhang.zhang@huawei.com> 1418432133 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1418503367 -0800

memory-hotplug: remove redundant call of page_to_pfn

This is just a small optimization.  The start_pfn can be obtained directly
by phys_index << PFN_SECTION_SHIFT.  So the call of page_to_pfn() is
redundant and remove it.

Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>