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* [PATCH] mm/compaction: Remove duplicated VM_BUG_ON_PAGE !PageLocked
@ 2021-01-09  8:14 Miaohe Lin
  2021-01-11 16:44 ` David Hildenbrand
  0 siblings, 1 reply; 2+ messages in thread
From: Miaohe Lin @ 2021-01-09  8:14 UTC (permalink / raw)
  To: akpm; +Cc: linux-mm, linux-kernel, linmiaohe

The VM_BUG_ON_PAGE(!PageLocked(page), page) is also done in PageMovable.
Remove this explicitly one.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 mm/compaction.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index 02af220fb992..6d316eb99913 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -137,7 +137,6 @@ EXPORT_SYMBOL(__SetPageMovable);
 
 void __ClearPageMovable(struct page *page)
 {
-	VM_BUG_ON_PAGE(!PageLocked(page), page);
 	VM_BUG_ON_PAGE(!PageMovable(page), page);
 	/*
 	 * Clear registered address_space val with keeping PAGE_MAPPING_MOVABLE
-- 
2.19.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] mm/compaction: Remove duplicated VM_BUG_ON_PAGE !PageLocked
  2021-01-09  8:14 [PATCH] mm/compaction: Remove duplicated VM_BUG_ON_PAGE !PageLocked Miaohe Lin
@ 2021-01-11 16:44 ` David Hildenbrand
  0 siblings, 0 replies; 2+ messages in thread
From: David Hildenbrand @ 2021-01-11 16:44 UTC (permalink / raw)
  To: Miaohe Lin, akpm; +Cc: linux-mm, linux-kernel

On 09.01.21 09:14, Miaohe Lin wrote:
> The VM_BUG_ON_PAGE(!PageLocked(page), page) is also done in PageMovable.
> Remove this explicitly one.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
> ---
>  mm/compaction.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/mm/compaction.c b/mm/compaction.c
> index 02af220fb992..6d316eb99913 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -137,7 +137,6 @@ EXPORT_SYMBOL(__SetPageMovable);
>  
>  void __ClearPageMovable(struct page *page)
>  {
> -	VM_BUG_ON_PAGE(!PageLocked(page), page);
>  	VM_BUG_ON_PAGE(!PageMovable(page), page);
>  	/*
>  	 * Clear registered address_space val with keeping PAGE_MAPPING_MOVABLE
> 

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 
Thanks,

David / dhildenb


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2021-01-09  8:14 [PATCH] mm/compaction: Remove duplicated VM_BUG_ON_PAGE !PageLocked Miaohe Lin
2021-01-11 16:44 ` David Hildenbrand

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