[RFC PATCH v2 01/16] mm,hwpoison: cleanup unused PageHuge() check

From: Oscar Salvador
Date: Thu Oct 17 2019 - 10:21:35 EST


From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>

Drop the PageHuge check since memory_failure forks into memory_failure_hugetlb()
for hugetlb pages.

Signed-off-by: Oscar Salvador <osalvador@xxxxxxx>
Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
---
mm/memory-failure.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 05c8c6df25e6..2cbadb58c7df 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1345,10 +1345,7 @@ int memory_failure(unsigned long pfn, int flags)
* page_remove_rmap() in try_to_unmap_one(). So to determine page status
* correctly, we save a copy of the page flags at this time.
*/
- if (PageHuge(p))
- page_flags = hpage->flags;
- else
- page_flags = p->flags;
+ page_flags = p->flags;

/*
* unpoison always clear PG_hwpoison inside page lock
--
2.12.3