Merge branch 'for-6.17/block' into for-next

* for-6.17/block: (77 commits)
  dm: split write BIOs on zone boundaries when zone append is not emulated
  block: use chunk_sectors when evaluating stacked atomic write limits
  dm-stripe: limit chunk_sectors to the stripe size
  md/raid10: set chunk_sectors limit
  md/raid0: set chunk_sectors limit
  block: sanitize chunk_sectors for atomic write limits
  ilog2: add max_pow_of_two_factor()
  block: fix blk_zone_append_update_request_bio() kernel-doc
  ublk: remove unused req argument from ublk_sub_req_ref()
  selftests: ublk: add utils.h
  selftests: ublk: add helper ublk_handle_uring_cmd() for handle ublk command
  selftests: ublk: improve flags naming
  selftests: ublk: remove ublk queue self-defined flags
  selftests: ublk: pass 'ublk_thread *' to more common helpers
  selftests: ublk: pass 'ublk_thread *' to ->queue_io() and ->tgt_io_done()
  selftests: ublk: remove `tag` parameter of ->tgt_io_done()
  ublk: pass 'const struct ublk_io *' to ublk_[un]map_io()
  ublk: remove ublk_commit_and_fetch()
  ublk: add helper ublk_check_fetch_buf()
  ublk: store auto buffer register data into `struct ublk_io`
  ...

Author: axboe

Documentation/ABI/testing/debugfs-pktcdvd

@@ -8,7 +8,6 @@ CD-ROM
     :maxdepth: 1
 
     cdrom-standard
-    packet-writing
 
 .. only::  subproject and html
 

Documentation/ABI/testing/sysfs-class-pktcdvd

@@ -220,7 +220,6 @@ Code  Seq#    Include File                                           Comments
              include/linux/falloc.h,
              linux/fs.h,
 'X'   all    fs/ocfs2/ocfs_fs.h                                      conflict!
-'X'   01     linux/pktcdvd.h                                         conflict!
 'Z'   14-15  drivers/message/fusion/mptctl.h
 '['   00-3F  linux/usb/tmc.h                                         USB Test and Measurement Devices
                                                                      <mailto:[email protected]>

Documentation/cdrom/index.rst

@@ -19702,13 +19702,6 @@ S:	Supported
 F:	Documentation/devicetree/bindings/input/pine64,pinephone-keyboard.yaml
 F:	drivers/input/keyboard/pinephone-keyboard.c
 
-PKTCDVD DRIVER
-M:	[email protected]
-S:	Orphan
-F:	drivers/block/pktcdvd.c
-F:	include/linux/pktcdvd.h
-F:	include/uapi/linux/pktcdvd.h
-
 PLANTOWER PMS7003 AIR POLLUTION SENSOR DRIVER
 M:	Tomasz Duszynski <[email protected]>
 S:	Maintained

Documentation/cdrom/packet-writing.rst

@@ -128,6 +128,9 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
 	if (bip->bip_vcnt > 0) {
 		struct bio_vec *bv = &bip->bip_vec[bip->bip_vcnt - 1];
 
+		if (!zone_device_pages_have_same_pgmap(bv->bv_page, page))
+			return 0;
+
 		if (bvec_try_merge_hw_page(q, bv, page, len, offset)) {
 			bip->bip_iter.bi_size += len;
 			return len;

Documentation/userspace-api/ioctl/ioctl-number.rst

@@ -930,8 +930,6 @@ static bool bvec_try_merge_page(struct bio_vec *bv, struct page *page,
 		return false;
 	if (xen_domain() && !xen_biovec_phys_mergeable(bv, page))
 		return false;
-	if (!zone_device_pages_have_same_pgmap(bv->bv_page, page))
-		return false;
 
 	if ((vec_end_addr & PAGE_MASK) != ((page_addr + off) & PAGE_MASK)) {
 		if (IS_ENABLED(CONFIG_KMSAN))
@@ -982,6 +980,9 @@ void __bio_add_page(struct bio *bio, struct page *page,
 	WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED));
 	WARN_ON_ONCE(bio_full(bio, len));
 
+	if (is_pci_p2pdma_page(page))
+		bio->bi_opf |= REQ_P2PDMA | REQ_NOMERGE;
+
 	bvec_set_page(&bio->bi_io_vec[bio->bi_vcnt], page, len, off);
 	bio->bi_iter.bi_size += len;
 	bio->bi_vcnt++;
@@ -1022,11 +1023,16 @@ int bio_add_page(struct bio *bio, struct page *page,
 	if (bio->bi_iter.bi_size > UINT_MAX - len)
 		return 0;
 
-	if (bio->bi_vcnt > 0 &&
-	    bvec_try_merge_page(&bio->bi_io_vec[bio->bi_vcnt - 1],
-				page, len, offset)) {
-		bio->bi_iter.bi_size += len;
-		return len;
+	if (bio->bi_vcnt > 0) {
+		struct bio_vec *bv = &bio->bi_io_vec[bio->bi_vcnt - 1];
+
+		if (!zone_device_pages_have_same_pgmap(bv->bv_page, page))
+			return 0;
+
+		if (bvec_try_merge_page(bv, page, len, offset)) {
+			bio->bi_iter.bi_size += len;
+			return len;
+		}
 	}
 
 	if (bio->bi_vcnt >= bio->bi_max_vecs)