mm/page_alloc.c defines is_pageblock_removable_nolock unconditionally,
but include/linux/memory_hotplug.h only prototypes it when
CONFIG_MEMORY_HOTPLUG=y and CONFIG_MEMORY_HOTREMOVE=y. Add the
corresponding conditions around the definition, too.
This also eliminates warnings from GCC (-Wmissing-prototypes) and Sparse
(-Wdecl).
mm/page_alloc.c:5634:6: warning: no previous prototype for ‘is_pageblock_removable_nolock’ [-Wmissing-prototypes]
Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d857953..706bd5f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5631,6 +5631,7 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count)
return false;
}
+#if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_MEMORY_HOTREMOVE)
bool is_pageblock_removable_nolock(struct page *page)
{
struct zone *zone;
@@ -5654,6 +5655,7 @@ bool is_pageblock_removable_nolock(struct page *page)
return !has_unmovable_pages(zone, page, 0);
}
+#endif /* defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_MEMORY_HOTREMOVE) */
#ifdef CONFIG_CMA
--
1.7.10.4
--
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