1 files changed, 24 insertions, 16 deletions

diff --git a/block/bio.c b/block/bio.c
index 9ec72a78f114..74c2818c7ec9 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -927,7 +927,7 @@ static bool bio_try_merge_hw_seg(struct request_queue *q, struct bio *bio,
 
 	if ((addr1 | mask) != (addr2 | mask))
 		return false;
-	if (bv->bv_len + len > queue_max_segment_size(q))
+	if (len > queue_max_segment_size(q) - bv->bv_len)
 		return false;
 	return __bio_try_merge_page(bio, page, len, offset, same_page);
 }
@@ -1109,13 +1109,22 @@ bool bio_add_folio(struct bio *bio, struct folio *folio, size_t len,
 
 void __bio_release_pages(struct bio *bio, bool mark_dirty)
 {
-	struct bvec_iter_all iter_all;
-	struct bio_vec *bvec;
+	struct folio_iter fi;
 
-	bio_for_each_segment_all(bvec, bio, iter_all) {
-		if (mark_dirty && !PageCompound(bvec->bv_page))
-			set_page_dirty_lock(bvec->bv_page);
-		put_page(bvec->bv_page);
+	bio_for_each_folio_all(fi, bio) {
+		struct page *page;
+		size_t done = 0;
+
+		if (mark_dirty) {
+			folio_lock(fi.folio);
+			folio_mark_dirty(fi.folio);
+			folio_unlock(fi.folio);
+		}
+		page = folio_page(fi.folio, fi.offset / PAGE_SIZE);
+		do {
+			folio_put(fi.folio);
+			done += PAGE_SIZE;
+		} while (done < fi.length);
 	}
 }
 EXPORT_SYMBOL_GPL(__bio_release_pages);
@@ -1414,12 +1423,12 @@ EXPORT_SYMBOL(bio_free_pages);
  */
 void bio_set_pages_dirty(struct bio *bio)
 {
-	struct bio_vec *bvec;
-	struct bvec_iter_all iter_all;
+	struct folio_iter fi;
 
-	bio_for_each_segment_all(bvec, bio, iter_all) {
-		if (!PageCompound(bvec->bv_page))
-			set_page_dirty_lock(bvec->bv_page);
+	bio_for_each_folio_all(fi, bio) {
+		folio_lock(fi.folio);
+		folio_mark_dirty(fi.folio);
+		folio_unlock(fi.folio);
 	}
 }
 
@@ -1462,12 +1471,11 @@ static void bio_dirty_fn(struct work_struct *work)
 
 void bio_check_pages_dirty(struct bio *bio)
 {
-	struct bio_vec *bvec;
+	struct folio_iter fi;
 	unsigned long flags;
-	struct bvec_iter_all iter_all;
 
-	bio_for_each_segment_all(bvec, bio, iter_all) {
-		if (!PageDirty(bvec->bv_page) && !PageCompound(bvec->bv_page))
+	bio_for_each_folio_all(fi, bio) {
+		if (!folio_test_dirty(fi.folio))
 			goto defer;
 	}