Adding upstream version 6.9.7.upstream/6.9.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 7 deletions

diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index d1455a601a..e95b2c8081 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -25,8 +25,9 @@
 void __tlb_remove_table(void *_table);
 static inline void tlb_flush(struct mmu_gather *tlb);
 static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,
-					  struct encoded_page *page,
-					  int page_size);
+		struct page *page, bool delay_rmap, int page_size);
+static inline bool __tlb_remove_folio_pages(struct mmu_gather *tlb,
+		struct page *page, unsigned int nr_pages, bool delay_rmap);
 
 #define tlb_flush tlb_flush
 #define pte_free_tlb pte_free_tlb
@@ -42,14 +43,29 @@ static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,
  * tlb_ptep_clear_flush. In both flush modes the tlb for a page cache page
  * has already been freed, so just do free_page_and_swap_cache.
  *
- * s390 doesn't delay rmap removal, so there is nothing encoded in
- * the page pointer.
+ * s390 doesn't delay rmap removal.
  */
 static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,
-					  struct encoded_page *page,
-					  int page_size)
+		struct page *page, bool delay_rmap, int page_size)
 {
-	free_page_and_swap_cache(encoded_page_ptr(page));
+	VM_WARN_ON_ONCE(delay_rmap);
+
+	free_page_and_swap_cache(page);
+	return false;
+}
+
+static inline bool __tlb_remove_folio_pages(struct mmu_gather *tlb,
+		struct page *page, unsigned int nr_pages, bool delay_rmap)
+{
+	struct encoded_page *encoded_pages[] = {
+		encode_page(page, ENCODED_PAGE_BIT_NR_PAGES_NEXT),
+		encode_nr_pages(nr_pages),
+	};
+
+	VM_WARN_ON_ONCE(delay_rmap);
+	VM_WARN_ON_ONCE(page_folio(page) != page_folio(page + nr_pages - 1));
+
+	free_pages_and_swap_cache(encoded_pages, ARRAY_SIZE(encoded_pages));
 	return false;
 }