Merge tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:
 "Core block changes that have been queued up for this release:

   - Remove dead blk-throttle and blk-wbt code (Guoqing)

   - Include pid in blktrace note traces (Jan)

   - Don't spew I/O errors on wouldblock termination (me)

   - Zone append addition (Johannes, Keith, Damien)

   - IO accounting improvements (Konstantin, Christoph)

   - blk-mq hardware map update improvements (Ming)

   - Scheduler dispatch improvement (Salman)

   - Inline block encryption support (Satya)

   - Request map fixes and improvements (Weiping)

   - blk-iocost tweaks (Tejun)

   - Fix for timeout failing with error injection (Keith)

   - Queue re-run fixes (Douglas)

   - CPU hotplug improvements (Christoph)

   - Queue entry/exit improvements (Christoph)

   - Move DMA drain handling to the few drivers that use it (Christoph)

   - Partition handling cleanups (Christoph)"

* tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block: (127 commits)
  block: mark bio_wouldblock_error() bio with BIO_QUIET
  blk-wbt: rename __wbt_update_limits to wbt_update_limits
  blk-wbt: remove wbt_update_limits
  blk-throttle: remove tg_drain_bios
  blk-throttle: remove blk_throtl_drain
  null_blk: force complete for timeout request
  blk-mq: drain I/O when all CPUs in a hctx are offline
  blk-mq: add blk_mq_all_tag_iter
  blk-mq: open code __blk_mq_alloc_request in blk_mq_alloc_request_hctx
  blk-mq: use BLK_MQ_NO_TAG in more places
  blk-mq: rename BLK_MQ_TAG_FAIL to BLK_MQ_NO_TAG
  blk-mq: move more request initialization to blk_mq_rq_ctx_init
  blk-mq: simplify the blk_mq_get_request calling convention
  blk-mq: remove the bio argument to ->prepare_request
  nvme: force complete cancelled requests
  blk-mq: blk-mq: provide forced completion method
  block: fix a warning when blkdev.h is included for !CONFIG_BLOCK builds
  block: blk-crypto-fallback: remove redundant initialization of variable err
  block: reduce part_stat_lock() scope
  block: use __this_cpu_add() instead of access by smp_processor_id()
  ...

24 files changed, 172 insertions, 123 deletions

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 1e3030dd43ba..632538d6f1dc 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -255,7 +255,7 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter,
 			break;
 		if (!(iocb->ki_flags & IOCB_HIPRI) ||
 		    !blk_poll(bdev_get_queue(bdev), qc, true))
-			io_schedule();
+			blk_io_schedule();
 	}
 	__set_current_state(TASK_RUNNING);
 
@@ -449,7 +449,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
 
 		if (!(iocb->ki_flags & IOCB_HIPRI) ||
 		    !blk_poll(bdev_get_queue(bdev), qc, true))
-			io_schedule();
+			blk_io_schedule();
 	}
 	__set_current_state(TASK_RUNNING);
 
@@ -671,7 +671,7 @@ int blkdev_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
 	 * i_mutex and doing so causes performance issues with concurrent
 	 * O_SYNC writers to a block device.
 	 */
-	error = blkdev_issue_flush(bdev, GFP_KERNEL, NULL);
+	error = blkdev_issue_flush(bdev, GFP_KERNEL);
 	if (error == -EOPNOTSUPP)
 		error = 0;
 
@@ -712,7 +712,6 @@ int bdev_read_page(struct block_device *bdev, sector_t sector,
 	blk_queue_exit(bdev->bd_queue);
 	return result;
 }
-EXPORT_SYMBOL_GPL(bdev_read_page);
 
 /**
  * bdev_write_page() - Start writing a page to a block device
@@ -757,7 +756,6 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
 	blk_queue_exit(bdev->bd_queue);
 	return result;
 }
-EXPORT_SYMBOL_GPL(bdev_write_page);
 
 /*
  * pseudo-fs
@@ -881,21 +879,6 @@ static int bdev_set(struct inode *inode, void *data)
 
 static LIST_HEAD(all_bdevs);
 
-/*
- * If there is a bdev inode for this device, unhash it so that it gets evicted
- * as soon as last inode reference is dropped.
- */
-void bdev_unhash_inode(dev_t dev)
-{
-	struct inode *inode;
-
-	inode = ilookup5(blockdev_superblock, hash(dev), bdev_test, &dev);
-	if (inode) {
-		remove_inode_hash(inode);
-		iput(inode);
-	}
-}
-
 struct block_device *bdget(dev_t dev)
 {
 	struct block_device *bdev;
@@ -1515,7 +1498,7 @@ int bdev_disk_changed(struct block_device *bdev, bool invalidate)
 	lockdep_assert_held(&bdev->bd_mutex);
 
 rescan:
-	ret = blk_drop_partitions(disk, bdev);
+	ret = blk_drop_partitions(bdev);
 	if (ret)
 		return ret;
 
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 00b4d15bb811..6d5370eac2a8 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -500,7 +500,7 @@ static struct bio *dio_await_one(struct dio *dio)
 		spin_unlock_irqrestore(&dio->bio_lock, flags);
 		if (!(dio->iocb->ki_flags & IOCB_HIPRI) ||
 		    !blk_poll(dio->bio_disk->queue, dio->bio_cookie, true))
-			io_schedule();
+			blk_io_schedule();
 		/* wake up sets us TASK_RUNNING */
 		spin_lock_irqsave(&dio->bio_lock, flags);
 		dio->waiter = NULL;
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index e10206e7f4bb..35ff9a56db67 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -176,7 +176,7 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 		ret = ext4_fsync_journal(inode, datasync, &needs_barrier);
 
 	if (needs_barrier) {
-		err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+		err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);
 		if (!ret)
 			ret = err;
 	}
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 4b8c9a9bdf0c..499f08d8522e 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1440,7 +1440,7 @@ int ext4_init_inode_table(struct super_block *sb, ext4_group_t group,
 	if (ret < 0)
 		goto err_out;
 	if (barrier)
-		blkdev_issue_flush(sb->s_bdev, GFP_NOFS, NULL);
+		blkdev_issue_flush(sb->s_bdev, GFP_NOFS);
 
 skip_zeroout:
 	ext4_lock_group(sb, group);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 4a3d21972011..9824cd8203e8 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5296,7 +5296,7 @@ static int ext4_sync_fs(struct super_block *sb, int wait)
 		needs_barrier = true;
 	if (needs_barrier) {
 		int err;
-		err = blkdev_issue_flush(sb->s_bdev, GFP_KERNEL, NULL);
+		err = blkdev_issue_flush(sb->s_bdev, GFP_KERNEL);
 		if (!ret)
 			ret = err;
 	}
diff --git a/fs/fat/file.c b/fs/fat/file.c
index bdc4503c00a3..42134c58c87e 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -195,7 +195,7 @@ int fat_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
 	if (err)
 		return err;
 
-	return blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+	return blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);
 }
 
 
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index c5bdf46e3b4b..a750381d554a 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2319,7 +2319,7 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 
 			WARN(bdi_cap_writeback_dirty(wb->bdi) &&
 			     !test_bit(WB_registered, &wb->state),
-			     "bdi-%s not registered\n", wb->bdi->name);
+			     "bdi-%s not registered\n", bdi_dev_name(wb->bdi));
 
 			inode->dirtied_when = jiffies;
 			if (dirtytime)
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 460281b1299e..cdf0edeeb278 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -32,29 +32,35 @@
 static int hfs_get_last_session(struct super_block *sb,
 				sector_t *start, sector_t *size)
 {
-	struct cdrom_multisession ms_info;
-	struct cdrom_tocentry te;
-	int res;
+	struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk);
 
 	/* default values */
 	*start = 0;
 	*size = i_size_read(sb->s_bdev->bd_inode) >> 9;
 
 	if (HFS_SB(sb)->session >= 0) {
+		struct cdrom_tocentry te;
+	
+		if (!cdi)
+			return -EINVAL;
+
 		te.cdte_track = HFS_SB(sb)->session;
 		te.cdte_format = CDROM_LBA;
-		res = ioctl_by_bdev(sb->s_bdev, CDROMREADTOCENTRY, (unsigned long)&te);
-		if (!res && (te.cdte_ctrl & CDROM_DATA_TRACK) == 4) {
-			*start = (sector_t)te.cdte_addr.lba << 2;
-			return 0;
+		if (cdrom_read_tocentry(cdi, &te) ||
+		    (te.cdte_ctrl & CDROM_DATA_TRACK) != 4) {
+			pr_err("invalid session number or type of track\n");
+			return -EINVAL;
 		}
-		pr_err("invalid session number or type of track\n");
-		return -EINVAL;
+
+		*start = (sector_t)te.cdte_addr.lba << 2;
+	} else if (cdi) {
+		struct cdrom_multisession ms_info;
+
+		ms_info.addr_format = CDROM_LBA;
+		if (cdrom_multisession(cdi, &ms_info) == 0 && ms_info.xa_flag)
+			*start = (sector_t)ms_info.addr.lba << 2;
 	}
-	ms_info.addr_format = CDROM_LBA;
-	res = ioctl_by_bdev(sb->s_bdev, CDROMMULTISESSION, (unsigned long)&ms_info);
-	if (!res && ms_info.xa_flag)
-		*start = (sector_t)ms_info.addr.lba << 2;
+
 	return 0;
 }
 
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 94bd83b36644..e3da9e96b835 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -340,7 +340,7 @@ int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
 	}
 
 	if (!test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
-		blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+		blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);
 
 	inode_unlock(inode);
 
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 2b9e5743105e..129dca3f4b78 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -239,7 +239,7 @@ out:
 	mutex_unlock(&sbi->vh_mutex);
 
 	if (!test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
-		blkdev_issue_flush(sb->s_bdev, GFP_KERNEL, NULL);
+		blkdev_issue_flush(sb->s_bdev, GFP_KERNEL);
 
 	return error;
 }
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index 08c1580bdf7a..61eec628805d 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -127,31 +127,34 @@ static int hfsplus_read_mdb(void *bufptr, struct hfsplus_wd *wd)
 static int hfsplus_get_last_session(struct super_block *sb,
 				    sector_t *start, sector_t *size)
 {
-	struct cdrom_multisession ms_info;
-	struct cdrom_tocentry te;
-	int res;
+	struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk);
 
 	/* default values */
 	*start = 0;
 	*size = i_size_read(sb->s_bdev->bd_inode) >> 9;
 
 	if (HFSPLUS_SB(sb)->session >= 0) {
+		struct cdrom_tocentry te;
+
+		if (!cdi)
+			return -EINVAL;
+
 		te.cdte_track = HFSPLUS_SB(sb)->session;
 		te.cdte_format = CDROM_LBA;
-		res = ioctl_by_bdev(sb->s_bdev,
-			CDROMREADTOCENTRY, (unsigned long)&te);
-		if (!res && (te.cdte_ctrl & CDROM_DATA_TRACK) == 4) {
-			*start = (sector_t)te.cdte_addr.lba << 2;
-			return 0;
+		if (cdrom_read_tocentry(cdi, &te) ||
+		    (te.cdte_ctrl & CDROM_DATA_TRACK) != 4) {
+			pr_err("invalid session number or type of track\n");
+			return -EINVAL;
 		}
-		pr_err("invalid session number or type of track\n");
-		return -EINVAL;
+		*start = (sector_t)te.cdte_addr.lba << 2;
+	} else if (cdi) {
+		struct cdrom_multisession ms_info;
+
+		ms_info.addr_format = CDROM_LBA;
+		if (cdrom_multisession(cdi, &ms_info) == 0 && ms_info.xa_flag)
+			*start = (sector_t)ms_info.addr.lba << 2;
 	}
-	ms_info.addr_format = CDROM_LBA;
-	res = ioctl_by_bdev(sb->s_bdev, CDROMMULTISESSION,
-		(unsigned long)&ms_info);
-	if (!res && ms_info.xa_flag)
-		*start = (sector_t)ms_info.addr.lba << 2;
+
 	return 0;
 }
 
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 20dde5aadcdd..fd3bd06fabb6 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -561,7 +561,7 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
 			    !dio->submit.last_queue ||
 			    !blk_poll(dio->submit.last_queue,
 					 dio->submit.cookie, true))
-				io_schedule();
+				blk_io_schedule();
 		}
 		__set_current_state(TASK_RUNNING);
 	}
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 95b1f377ad09..d634561f871a 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -544,43 +544,41 @@ static int isofs_show_options(struct seq_file *m, struct dentry *root)
 
 static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
 {
-	struct cdrom_multisession ms_info;
-	unsigned int vol_desc_start;
-	struct block_device *bdev = sb->s_bdev;
-	int i;
+	struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk);
+	unsigned int vol_desc_start = 0;
 
-	vol_desc_start=0;
-	ms_info.addr_format=CDROM_LBA;
 	if (session > 0) {
-		struct cdrom_tocentry Te;
-		Te.cdte_track=session;
-		Te.cdte_format=CDROM_LBA;
-		i = ioctl_by_bdev(bdev, CDROMREADTOCENTRY, (unsigned long) &Te);
-		if (!i) {
+		struct cdrom_tocentry te;
+
+		if (!cdi)
+			return 0;
+
+		te.cdte_track = session;
+		te.cdte_format = CDROM_LBA;
+		if (cdrom_read_tocentry(cdi, &te) == 0) {
 			printk(KERN_DEBUG "ISOFS: Session %d start %d type %d\n",
-				session, Te.cdte_addr.lba,
-				Te.cdte_ctrl&CDROM_DATA_TRACK);
-			if ((Te.cdte_ctrl&CDROM_DATA_TRACK) == 4)
-				return Te.cdte_addr.lba;
+				session, te.cdte_addr.lba,
+				te.cdte_ctrl & CDROM_DATA_TRACK);
+			if ((te.cdte_ctrl & CDROM_DATA_TRACK) == 4)
+				return te.cdte_addr.lba;
 		}
 
 		printk(KERN_ERR "ISOFS: Invalid session number or type of track\n");
 	}
-	i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
-	if (session > 0)
-		printk(KERN_ERR "ISOFS: Invalid session number\n");
-#if 0
-	printk(KERN_DEBUG "isofs.inode: CDROMMULTISESSION: rc=%d\n",i);
-	if (i==0) {
-		printk(KERN_DEBUG "isofs.inode: XA disk: %s\n",ms_info.xa_flag?"yes":"no");
-		printk(KERN_DEBUG "isofs.inode: vol_desc_start = %d\n", ms_info.addr.lba);
-	}
-#endif
-	if (i==0)
+
+	if (cdi) {
+		struct cdrom_multisession ms_info;
+
+		ms_info.addr_format = CDROM_LBA;
+		if (cdrom_multisession(cdi, &ms_info) == 0) {
 #if WE_OBEY_THE_WRITTEN_STANDARDS
-		if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */
+			/* necessary for a valid ms_info.addr */
+			if (ms_info.xa_flag)
 #endif
-			vol_desc_start=ms_info.addr.lba;
+				vol_desc_start = ms_info.addr.lba;
+		}
+	}
+
 	return vol_desc_start;
 }
 
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 96bf33986d03..263f02ad8ebf 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -414,7 +414,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
 	 * jbd2_cleanup_journal_tail() doesn't get called all that often.
 	 */
 	if (journal->j_flags & JBD2_BARRIER)
-		blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS, NULL);
+		blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS);
 
 	return __jbd2_update_log_tail(journal, first_tid, blocknr);
 }
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index e855d8260433..6d2da8ad0e6f 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -775,7 +775,7 @@ start_journal_io:
 	if (commit_transaction->t_need_data_flush &&
 	    (journal->j_fs_dev != journal->j_dev) &&
 	    (journal->j_flags & JBD2_BARRIER))
-		blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS, NULL);
+		blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS);
 
 	/* Done it all: now write the commit record asynchronously. */
 	if (jbd2_has_feature_async_commit(journal)) {
@@ -882,7 +882,7 @@ start_journal_io:
 	stats.run.rs_blocks_logged++;
 	if (jbd2_has_feature_async_commit(journal) &&
 	    journal->j_flags & JBD2_BARRIER) {
-		blkdev_issue_flush(journal->j_dev, GFP_NOFS, NULL);
+		blkdev_issue_flush(journal->j_dev, GFP_NOFS);
 	}
 
 	if (err)
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index a4967b27ffb6..2ed278f0dced 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -286,7 +286,7 @@ int jbd2_journal_recover(journal_t *journal)
 		err = err2;
 	/* Make sure all replayed data is on permanent storage */
 	if (journal->j_flags & JBD2_BARRIER) {
-		err2 = blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL);
+		err2 = blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL);
 		if (!err)
 			err = err2;
 	}
diff --git a/fs/libfs.c b/fs/libfs.c
index 3759fbacf522..4d08edf19c78 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1113,7 +1113,7 @@ int generic_file_fsync(struct file *file, loff_t start, loff_t end,
 	err = __generic_file_fsync(file, start, end, datasync);
 	if (err)
 		return err;
-	return blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+	return blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);
 }
 EXPORT_SYMBOL(generic_file_fsync);
 
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 380a543c5b19..b55cdeb4d169 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -375,7 +375,7 @@ static inline int nilfs_flush_device(struct the_nilfs *nilfs)
 	 */
 	smp_wmb();
 
-	err = blkdev_issue_flush(nilfs->ns_bdev, GFP_KERNEL, NULL);
+	err = blkdev_issue_flush(nilfs->ns_bdev, GFP_KERNEL);
 	if (err != -EIO)
 		err = 0;
 	return err;
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 6cd5e4924e4d..85979e2214b3 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -194,7 +194,7 @@ static int ocfs2_sync_file(struct file *file, loff_t start, loff_t end,
 		needs_barrier = true;
 	err = jbd2_complete_transaction(journal, commit_tid);
 	if (needs_barrier) {
-		ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+		ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);
 		if (!err)
 			err = ret;
 	}
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 84cf8bdbec9c..0b641ae694f1 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -159,7 +159,7 @@ static int reiserfs_sync_file(struct file *filp, loff_t start, loff_t end,
 	barrier_done = reiserfs_commit_for_inode(inode);
 	reiserfs_write_unlock(inode->i_sb);
 	if (barrier_done != 1 && reiserfs_barrier_flush(inode->i_sb))
-		blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+		blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);
 	inode_unlock(inode);
 	if (barrier_done < 0)
 		return barrier_done;
diff --git a/fs/super.c b/fs/super.c
index a288cd60d2ae..bf3b7685b52a 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1598,12 +1598,10 @@ int super_setup_bdi_name(struct super_block *sb, char *fmt, ...)
 	int err;
 	va_list args;
 
-	bdi = bdi_alloc(GFP_KERNEL);
+	bdi = bdi_alloc(NUMA_NO_NODE);
 	if (!bdi)
 		return -ENOMEM;
 
-	bdi->name = sb->s_type->name;
-
 	va_start(args, fmt);
 	err = bdi_register_va(bdi, fmt, args);
 	va_end(args);
diff --git a/fs/udf/lowlevel.c b/fs/udf/lowlevel.c
index 5c7ec121990d..f1094cdcd6cd 100644
--- a/fs/udf/lowlevel.c
+++ b/fs/udf/lowlevel.c
@@ -27,41 +27,38 @@
 
 unsigned int udf_get_last_session(struct super_block *sb)
 {
+	struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk);
 	struct cdrom_multisession ms_info;
-	unsigned int vol_desc_start;
-	struct block_device *bdev = sb->s_bdev;
-	int i;
 
-	vol_desc_start = 0;
-	ms_info.addr_format = CDROM_LBA;
-	i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long)&ms_info);
+	if (!cdi) {
+		udf_debug("CDROMMULTISESSION not supported.\n");
+		return 0;
+	}
 
-	if (i == 0) {
+	ms_info.addr_format = CDROM_LBA;
+	if (cdrom_multisession(cdi, &ms_info) == 0) {
 		udf_debug("XA disk: %s, vol_desc_start=%d\n",
 			  ms_info.xa_flag ? "yes" : "no", ms_info.addr.lba);
 		if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */
-			vol_desc_start = ms_info.addr.lba;
-	} else {
-		udf_debug("CDROMMULTISESSION not supported: rc=%d\n", i);
+			return ms_info.addr.lba;
 	}
-	return vol_desc_start;
+	return 0;
 }
 
 unsigned long udf_get_last_block(struct super_block *sb)
 {
 	struct block_device *bdev = sb->s_bdev;
+	struct cdrom_device_info *cdi = disk_to_cdi(bdev->bd_disk);
 	unsigned long lblock = 0;
 
 	/*
-	 * ioctl failed or returned obviously bogus value?
+	 * The cdrom layer call failed or returned obviously bogus value?
 	 * Try using the device size...
 	 */
-	if (ioctl_by_bdev(bdev, CDROM_LAST_WRITTEN, (unsigned long) &lblock) ||
-	    lblock == 0)
+	if (!cdi || cdrom_get_last_written(cdi, &lblock) || lblock == 0)
 		lblock = i_size_read(bdev->bd_inode) >> sb->s_blocksize_bits;
 
 	if (lblock)
 		return lblock - 1;
-	else
-		return 0;
+	return 0;
 }
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 424bb9a2d532..a123cd8267d9 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -305,7 +305,7 @@ void
 xfs_blkdev_issue_flush(
 	xfs_buftarg_t		*buftarg)
 {
-	blkdev_issue_flush(buftarg->bt_bdev, GFP_NOFS, NULL);
+	blkdev_issue_flush(buftarg->bt_bdev, GFP_NOFS);
 }
 
 STATIC void
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index dba874a61fc5..d79b821ed1c7 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -20,6 +20,7 @@
 #include <linux/mman.h>
 #include <linux/sched/mm.h>
 #include <linux/crc32.h>
+#include <linux/task_io_accounting_ops.h>
 
 #include "zonefs.h"
 
@@ -477,7 +478,7 @@ static int zonefs_file_fsync(struct file *file, loff_t start, loff_t end,
 	if (ZONEFS_I(inode)->i_ztype == ZONEFS_ZTYPE_CNV)
 		ret = file_write_and_wait_range(file, start, end);
 	if (!ret)
-		ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+		ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL);
 
 	if (ret)
 		zonefs_io_error(inode, true);
@@ -595,6 +596,61 @@ static const struct iomap_dio_ops zonefs_write_dio_ops = {
 	.end_io			= zonefs_file_write_dio_end_io,
 };
 
+static ssize_t zonefs_file_dio_append(struct kiocb *iocb, struct iov_iter *from)
+{
+	struct inode *inode = file_inode(iocb->ki_filp);
+	struct zonefs_inode_info *zi = ZONEFS_I(inode);
+	struct block_device *bdev = inode->i_sb->s_bdev;
+	unsigned int max;
+	struct bio *bio;
+	ssize_t size;
+	int nr_pages;
+	ssize_t ret;
+
+	nr_pages = iov_iter_npages(from, BIO_MAX_PAGES);
+	if (!nr_pages)
+		return 0;
+
+	max = queue_max_zone_append_sectors(bdev_get_queue(bdev));
+	max = ALIGN_DOWN(max << SECTOR_SHIFT, inode->i_sb->s_blocksize);
+	iov_iter_truncate(from, max);
+
+	bio = bio_alloc_bioset(GFP_NOFS, nr_pages, &fs_bio_set);
+	if (!bio)
+		return -ENOMEM;
+
+	bio_set_dev(bio, bdev);
+	bio->bi_iter.bi_sector = zi->i_zsector;
+	bio->bi_write_hint = iocb->ki_hint;
+	bio->bi_ioprio = iocb->ki_ioprio;
+	bio->bi_opf = REQ_OP_ZONE_APPEND | REQ_SYNC | REQ_IDLE;
+	if (iocb->ki_flags & IOCB_DSYNC)
+		bio->bi_opf |= REQ_FUA;
+
+	ret = bio_iov_iter_get_pages(bio, from);
+	if (unlikely(ret)) {
+		bio_io_error(bio);
+		return ret;
+	}
+	size = bio->bi_iter.bi_size;
+	task_io_account_write(ret);
+
+	if (iocb->ki_flags & IOCB_HIPRI)
+		bio_set_polled(bio, iocb);
+
+	ret = submit_bio_wait(bio);
+
+	bio_put(bio);
+
+	zonefs_file_write_dio_end_io(iocb, size, ret, 0);
+	if (ret >= 0) {
+		iocb->ki_pos += size;
+		return size;
+	}
+
+	return ret;
+}
+
 /*
  * Handle direct writes. For sequential zone files, this is the only possible
  * write path. For these files, check that the user is issuing writes
@@ -610,6 +666,8 @@ static ssize_t zonefs_file_dio_write(struct kiocb *iocb, struct iov_iter *from)
 	struct inode *inode = file_inode(iocb->ki_filp);
 	struct zonefs_inode_info *zi = ZONEFS_I(inode);
 	struct super_block *sb = inode->i_sb;
+	bool sync = is_sync_kiocb(iocb);
+	bool append = false;
 	size_t count;
 	ssize_t ret;
 
@@ -618,7 +676,7 @@ static ssize_t zonefs_file_dio_write(struct kiocb *iocb, struct iov_iter *from)
 	 * as this can cause write reordering (e.g. the first aio gets EAGAIN
 	 * on the inode lock but the second goes through but is now unaligned).
 	 */
-	if (zi->i_ztype == ZONEFS_ZTYPE_SEQ && !is_sync_kiocb(iocb) &&
+	if (zi->i_ztype == ZONEFS_ZTYPE_SEQ && !sync &&
 	    (iocb->ki_flags & IOCB_NOWAIT))
 		return -EOPNOTSUPP;
 
@@ -642,16 +700,22 @@ static ssize_t zonefs_file_dio_write(struct kiocb *iocb, struct iov_iter *from)
 	}
 
 	/* Enforce sequential writes (append only) in sequential zones */
-	mutex_lock(&zi->i_truncate_mutex);
-	if (zi->i_ztype == ZONEFS_ZTYPE_SEQ && iocb->ki_pos != zi->i_wpoffset) {
+	if (zi->i_ztype == ZONEFS_ZTYPE_SEQ) {
+		mutex_lock(&zi->i_truncate_mutex);
+		if (iocb->ki_pos != zi->i_wpoffset) {
+			mutex_unlock(&zi->i_truncate_mutex);
+			ret = -EINVAL;
+			goto inode_unlock;
+		}
 		mutex_unlock(&zi->i_truncate_mutex);
-		ret = -EINVAL;
-		goto inode_unlock;
+		append = sync;
 	}
-	mutex_unlock(&zi->i_truncate_mutex);
 
-	ret = iomap_dio_rw(iocb, from, &zonefs_iomap_ops,
-			   &zonefs_write_dio_ops, is_sync_kiocb(iocb));
+	if (append)
+		ret = zonefs_file_dio_append(iocb, from);
+	else
+		ret = iomap_dio_rw(iocb, from, &zonefs_iomap_ops,
+				   &zonefs_write_dio_ops, sync);
 	if (zi->i_ztype == ZONEFS_ZTYPE_SEQ &&
 	    (ret > 0 || ret == -EIOCBQUEUED)) {
 		if (ret > 0)