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author | 2018-06-07 17:07:43 -0700 | |
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committer | 2018-06-07 17:34:36 -0700 | |
commit | fb52bbaee598f58352d8732637ebe7013b2df79f (patch) | |
tree | e79d680a5062afc9268cbf824e1590eeb77a94fd /mm/page_alloc.c | |
parent | mm: /proc/pid/pagemap: hide swap entries from unprivileged users (diff) | |
download | linux-fb52bbaee598f58352d8732637ebe7013b2df79f.tar.gz linux-fb52bbaee598f58352d8732637ebe7013b2df79f.tar.bz2 linux-fb52bbaee598f58352d8732637ebe7013b2df79f.zip |
mm: move is_pageblock_removable_nolock() to mm/memory_hotplug.c
is_pageblock_removable_nolock() is not used outside of
mm/memory_hotplug.c. Move it next to unique caller
is_mem_section_removable() and make it static.
Remove prototype in <linux/memory_hotplug.h> to silence gcc warning (W=1):
mm/page_alloc.c:7704:6: warning: no previous prototype for `is_pageblock_removable_nolock' [-Wmissing-prototypes]
Link: http://lkml.kernel.org/r/20180509190001.24789-1-malat@debian.org
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Suggested-by: Michal Hocko <mhocko@kernel.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r-- | mm/page_alloc.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index b93cc79a8db4..d0d26da12086 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7692,29 +7692,6 @@ unmovable: return true; } -bool is_pageblock_removable_nolock(struct page *page) -{ - struct zone *zone; - unsigned long pfn; - - /* - * We have to be careful here because we are iterating over memory - * sections which are not zone aware so we might end up outside of - * the zone but still within the section. - * We have to take care about the node as well. If the node is offline - * its NODE_DATA will be NULL - see page_zone. - */ - if (!node_online(page_to_nid(page))) - return false; - - zone = page_zone(page); - pfn = page_to_pfn(page); - if (!zone_spans_pfn(zone, pfn)) - return false; - - return !has_unmovable_pages(zone, page, 0, MIGRATE_MOVABLE, true); -} - #if (defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || defined(CONFIG_CMA) static unsigned long pfn_max_align_down(unsigned long pfn) |