From: Oscar Salvador <osalvador@xxxxxxxxxxxxxxxxxx> Subject: mm: memory_hotplug: remove second __nr_to_section in register_page_bootmem_info_section() In register_page_bootmem_info_section() we call __nr_to_section() in order to get the mem_section struct at the beginning of the function. Since we already got it, there is no need for a second call to __nr_to_section(). Link: http://lkml.kernel.org/r/20171207102914.GA12396@xxxxxxxxxxxxxxxxxx Signed-off-by: Oscar Salvador <osalvador@xxxxxxxxxxxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memory_hotplug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff -puN mm/memory_hotplug.c~mm-memory_hotplug-remove-second-__nr_to_section-in-register_page_bootmem_info_section mm/memory_hotplug.c --- a/mm/memory_hotplug.c~mm-memory_hotplug-remove-second-__nr_to_section-in-register_page_bootmem_info_section +++ a/mm/memory_hotplug.c @@ -184,7 +184,7 @@ static void register_page_bootmem_info_s for (i = 0; i < mapsize; i++, page++) get_page_bootmem(section_nr, page, SECTION_INFO); - usemap = __nr_to_section(section_nr)->pageblock_flags; + usemap = ms->pageblock_flags; page = virt_to_page(usemap); mapsize = PAGE_ALIGN(usemap_size()) >> PAGE_SHIFT; @@ -207,7 +207,7 @@ static void register_page_bootmem_info_s register_page_bootmem_memmap(section_nr, memmap, PAGES_PER_SECTION); - usemap = __nr_to_section(section_nr)->pageblock_flags; + usemap = ms->pageblock_flags; page = virt_to_page(usemap); mapsize = PAGE_ALIGN(usemap_size()) >> PAGE_SHIFT; _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
