mm/gup_test.c: convert verify_dma_pinned() to us folios

verify_dma_pinned() checks that pages are dma-pinned.  We can convert this
to use folios.

Link: https://lkml.kernel.org/r/20230614021312.34085-4-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/gup_test.c b/mm/gup_test.c
index 1668ce0e0783c18c5b6c974d1d1536145ddea2a8..26f45fe45c4870098b7fb9db40a3de5f2abcba35 100644 (file)
--- a/mm/gup_test.c
+++ b/mm/gup_test.c
@@ -40,24 +40,25 @@ static void verify_dma_pinned(unsigned int cmd, struct page **pages,
                              unsigned long nr_pages)
 {
        unsigned long i;
-       struct page *page;
+       struct folio *folio;
 
        switch (cmd) {
        case PIN_FAST_BENCHMARK:
        case PIN_BASIC_TEST:
        case PIN_LONGTERM_BENCHMARK:
                for (i = 0; i < nr_pages; i++) {
-                       page = pages[i];
-                       if (WARN(!page_maybe_dma_pinned(page),
+                       folio = page_folio(pages[i]);
+
+                       if (WARN(!folio_maybe_dma_pinned(folio),
                                 "pages[%lu] is NOT dma-pinned\n", i)) {
 
-                               dump_page(page, "gup_test failure");
+                               dump_page(&folio->page, "gup_test failure");
                                break;
                        } else if (cmd == PIN_LONGTERM_BENCHMARK &&
-                               WARN(!is_longterm_pinnable_page(page),
+                               WARN(!folio_is_longterm_pinnable(folio),
                                     "pages[%lu] is NOT pinnable but pinned\n",
                                     i)) {
-                               dump_page(page, "gup_test failure");
+                               dump_page(&folio->page, "gup_test failure");
                                break;
                        }
                }