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authorWei Yang <richardw.yang@linux.intel.com>2020-01-30 22:14:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-31 10:30:39 -0800
commitcb829624867b5ab10bc6a7036d183b1b82bfe9f8 (patch)
tree0eb9d65aea67e45fe02700604c8a618c8d3c74f9 /mm/huge_memory.c
parent8a7ff02acabbd877669fecb0a2e75d0930b62c85 (diff)
mm/huge_memory.c: use head to check huge zero page
The page could be a tail page, if this is the case, this BUG_ON will never be triggered. Link: http://lkml.kernel.org/r/20200110032610.26499-1-richardw.yang@linux.intel.com Fixes: e9b61f19858a ("thp: reintroduce split_huge_page()") Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
-rw-r--r--mm/huge_memory.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index a88093213674..ee1dafedd8fe 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2712,7 +2712,7 @@ int split_huge_page_to_list(struct page *page, struct list_head *list)
unsigned long flags;
pgoff_t end;
- VM_BUG_ON_PAGE(is_huge_zero_page(page), page);
+ VM_BUG_ON_PAGE(is_huge_zero_page(head), head);
VM_BUG_ON_PAGE(!PageLocked(page), page);
VM_BUG_ON_PAGE(!PageCompound(page), page);