!vma->vm_file is not reliable to detect anon VMA, because not all drivers bother set it. Let's use vma_is_anonymous() instead.
Signed-off-by: Kirill A. Shutemov <[email protected]> Acked-by: Minchan Kim <[email protected]> --- mm/madvise.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/madvise.c b/mm/madvise.c index 67d5fe74ffdf..00fb14ff98dd 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -393,7 +393,7 @@ static int madvise_free_single_vma(struct vm_area_struct *vma, return -EINVAL; /* MADV_FREE works for only anon vma at the moment */ - if (vma->vm_file) + if (!vma_is_anonymous(vma)) return -EINVAL; start = max(vma->vm_start, start_addr); -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
