On Wed, Nov 21, 2018 at 11:48:13PM +0800, Ming Lei wrote: > I guess the correct check should be: > > end_addr = vec_addr + bv->bv_offset + bv->bv_len; > if (same_page && > (end_addr & PAGE_MASK) != (page_addr & PAGE_MASK)) > return false; Indeed.
On Wed, Nov 21, 2018 at 11:48:13PM +0800, Ming Lei wrote: > I guess the correct check should be: > > end_addr = vec_addr + bv->bv_offset + bv->bv_len; > if (same_page && > (end_addr & PAGE_MASK) != (page_addr & PAGE_MASK)) > return false; Indeed.