Re: [PATCH 0/6] mm: make movable onlining suck less

[Michal Hocko <mhocko@kernel.org>]

On Tue 04-04-17 11:02:39, Reza Arbab wrote:
> On Tue, Apr 04, 2017 at 10:23:02AM +0200, Michal Hocko wrote:
> >diff --git a/drivers/base/node.c b/drivers/base/node.c
> >index 5548f9686016..ee080a35e869 100644
> >--- a/drivers/base/node.c
> >+++ b/drivers/base/node.c
> >@@ -368,8 +368,6 @@ int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
> >}
> >
> >#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
> >-#define page_initialized(page)  (page->lru.next)
> >-
> >static int __ref get_nid_for_pfn(unsigned long pfn)
> >{
> >	struct page *page;
> >@@ -380,9 +378,6 @@ static int __ref get_nid_for_pfn(unsigned long pfn)
> >	if (system_state == SYSTEM_BOOTING)
> >		return early_pfn_to_nid(pfn);
> >#endif
> >-	page = pfn_to_page(pfn);
> >-	if (!page_initialized(page))
> >-		return -1;
> >	return pfn_to_nid(pfn);
> >}
> >
> 
> You can get rid of 'page' altogether.
> 
> drivers/base/node.c: In function ‘get_nid_for_pfn’:
> drivers/base/node.c:373:15: warning: unused variable ‘page’ [-Wunused-variable]

Right, updated.

Thanks for your testing! This is highly appreciated.
Can I assume your Tested-by?
-- 
Michal Hocko
SUSE Labs