diff options
| author |   Oscar Salvador <osalvador@techadventures.net> | 2018-01-31 16:17:14 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-31 17:18:37 -0800 |
| commit | dc88c88904b8c5eb749874aecc278146b6ae02f3 (patch) | |
| tree | 811f04874b2cad17a2cc1bbf55224a7b7b3cb6f1 | |
| parent | mm, hugetlb: remove hugepages_treat_as_movable sysctl (diff) | |
| download | linux-dev-dc88c88904b8c5eb749874aecc278146b6ae02f3.tar.xz linux-dev-dc88c88904b8c5eb749874aecc278146b6ae02f3.zip | |
mm/memory_hotplug.c: remove unnecesary check from register_page_bootmem_info_section()
When we call register_page_bootmem_info_section() having
CONFIG_SPARSEMEM_VMEMMAP enabled, we check if the pfn is valid.
This check is redundant as we already checked this in
register_page_bootmem_info_node() before calling
register_page_bootmem_info_section(), so let's get rid of it.
Link: http://lkml.kernel.org/r/20171205143422.GA31458@techadventures.net
Signed-off-by: Oscar Salvador <osalvador@techadventures.net>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/memory_hotplug.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 999ce3af809d..9646e5d63648 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -200,9 +200,6 @@ static void register_page_bootmem_info_section(unsigned long start_pfn) struct mem_section *ms; struct page *page, *memmap; - if (!pfn_valid(start_pfn)) - return; - section_nr = pfn_to_section_nr(start_pfn); ms = __nr_to_section(section_nr); |