[PATCH v2] mm/memory-failure.c: replace with page_shift() in add_to_kill()

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The function page_shift() is supported after the commit 94ad9338109f
("mm: introduce page_shift()").

So replace with page_shift() in add_to_kill() for readability.

Signed-off-by: Yunfeng Ye <yeyunfeng@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Acked-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
---
v1 -> v2:
 - add Reviewed-by and Acked-by

 mm/memory-failure.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 3151c87dff73..e48c50cac889 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -326,7 +326,7 @@ static void add_to_kill(struct task_struct *tsk, struct page *p,
 	if (is_zone_device_page(p))
 		tk->size_shift = dev_pagemap_mapping_shift(p, vma);
 	else
-		tk->size_shift = compound_order(compound_head(p)) + PAGE_SHIFT;
+		tk->size_shift = page_shift(compound_head(p));

 	/*
 	 * Send SIGKILL if "tk->addr == -EFAULT". Also, as
-- 
2.7.4





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