From: Wei Yang richardw.yang@linux.intel.com
commit cb829624867b5ab10bc6a7036d183b1b82bfe9f8 upstream.
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.co... 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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- mm/huge_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2095,7 +2095,7 @@ int split_huge_page_to_list(struct page 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(!PageSwapBacked(page), page); VM_BUG_ON_PAGE(!PageCompound(page), page);