From 4944e76d81801b8e60ed3e7789443f210c16ed65 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Sat, 3 Sep 2005 15:54:56 -0700 Subject: [PATCH] [PATCH] mm: remove implied vm_ops check If !vma->vm-ops we already BUG above, so retesting it is useless. The compiler cannot optimize this because BUG is a macro and is not thus marked noreturn; that should possibly be fixed. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index a596c1172248..b25f5e58a14c 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1955,7 +1955,7 @@ static int do_file_page(struct mm_struct * mm, struct vm_area_struct * vma, * Fall back to the linear mapping if the fs does not support * ->populate: */ - if (!vma->vm_ops || !vma->vm_ops->populate || + if (!vma->vm_ops->populate || (write_access && !(vma->vm_flags & VM_SHARED))) { pte_clear(mm, address, pte); return do_no_page(mm, vma, address, write_access, pte, pmd); -- 2.20.1