gfpflags_allow_blocking() does not care about __GFP_HIGHMEM, so
highmem_mask can be removed.
Link: http://lkml.kernel.org/r/1568812319-3467-1-git-send-email-liuxiang_1999@126.com
Signed-off-by: Liu Xiang <liuxiang_1999@126.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
                        goto fail;
                }
                area->pages[i] = page;
-               if (gfpflags_allow_blocking(gfp_mask|highmem_mask))
+               if (gfpflags_allow_blocking(gfp_mask))
                        cond_resched();
        }
        atomic_long_add(area->nr_pages, &nr_vmalloc_pages);