Merge tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:
 "Here are the core block changes for 5.19. This contains:

   - blk-throttle accounting fix (Laibin)

   - Series removing redundant assignments (Michal)

   - Expose bio cache via the bio_set, so that DM can use it (Mike)

   - Finish off the bio allocation interface cleanups by dealing with
     the weirdest member of the family. bio_kmalloc combines a kmalloc
     for the bio and bio_vecs with a hidden bio_init call and magic
     cleanup semantics (Christoph)

   - Clean up the block layer API so that APIs consumed by file systems
     are (almost) only struct block_device based, so that file systems
     don't have to poke into block layer internals like the
     request_queue (Christoph)

   - Clean up the blk_execute_rq* API (Christoph)

   - Clean up various lose end in the blk-cgroup code to make it easier
     to follow in preparation of reworking the blkcg assignment for bios
     (Christoph)

   - Fix use-after-free issues in BFQ when processes with merged queues
     get moved to different cgroups (Jan)

   - BFQ fixes (Jan)

   - Various fixes and cleanups (Bart, Chengming, Fanjun, Julia, Ming,
     Wolfgang, me)"

* tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block: (83 commits)
  blk-mq: fix typo in comment
  bfq: Remove bfq_requeue_request_body()
  bfq: Remove superfluous conversion from RQ_BIC()
  bfq: Allow current waker to defend against a tentative one
  bfq: Relax waker detection for shared queues
  blk-cgroup: delete rcu_read_lock_held() WARN_ON_ONCE()
  blk-throttle: Set BIO_THROTTLED when bio has been throttled
  blk-cgroup: Remove unnecessary rcu_read_lock/unlock()
  blk-cgroup: always terminate io.stat lines
  block, bfq: make bfq_has_work() more accurate
  block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
  block: cleanup the VM accounting in submit_bio
  block: Fix the bio.bi_opf comment
  block: reorder the REQ_ flags
  blk-iocost: combine local_stat and desc_stat to stat
  block: improve the error message from bio_check_eod
  block: allow passing a NULL bdev to bio_alloc_clone/bio_init_clone
  block: remove superfluous calls to blkcg_bio_issue_init
  kthread: unexport kthread_blkcg
  blk-cgroup: cleanup blkcg_maybe_throttle_current
  ...

34 files changed, 106 insertions, 190 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 31c3f592e587..84795d831282 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4238,6 +4238,7 @@ static int wait_dev_supers(struct btrfs_device *device, int max_mirrors)
  */
 static void btrfs_end_empty_barrier(struct bio *bio)
 {
+	bio_uninit(bio);
 	complete(bio->bi_private);
 }
 
@@ -4247,7 +4248,7 @@ static void btrfs_end_empty_barrier(struct bio *bio)
  */
 static void write_dev_flush(struct btrfs_device *device)
 {
-	struct bio *bio = device->flush_bio;
+	struct bio *bio = &device->flush_bio;
 
 #ifndef CONFIG_BTRFS_FS_CHECK_INTEGRITY
 	/*
@@ -4260,12 +4261,12 @@ static void write_dev_flush(struct btrfs_device *device)
 	 * of simplicity, since this is a debug tool and not meant for use in
 	 * non-debug builds.
 	 */
-	struct request_queue *q = bdev_get_queue(device->bdev);
-	if (!test_bit(QUEUE_FLAG_WC, &q->queue_flags))
+	if (!bdev_write_cache(device->bdev))
 		return;
 #endif
 
-	bio_reset(bio, device->bdev, REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH);
+	bio_init(bio, device->bdev, NULL, 0,
+		 REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH);
 	bio->bi_end_io = btrfs_end_empty_barrier;
 	init_completion(&device->flush_wait);
 	bio->bi_private = &device->flush_wait;
@@ -4279,7 +4280,7 @@ static void write_dev_flush(struct btrfs_device *device)
  */
 static blk_status_t wait_dev_flush(struct btrfs_device *device)
 {
-	struct bio *bio = device->flush_bio;
+	struct bio *bio = &device->flush_bio;
 
 	if (!test_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state))
 		return BLK_STS_OK;
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 6aa92f84f465..6260784e74b5 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1239,7 +1239,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len,
 
 		if (size) {
 			ret = blkdev_issue_discard(bdev, start >> 9, size >> 9,
-						   GFP_NOFS, 0);
+						   GFP_NOFS);
 			if (!ret)
 				*discarded_bytes += size;
 			else if (ret != -EOPNOTSUPP)
@@ -1256,7 +1256,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len,
 
 	if (bytes_left) {
 		ret = blkdev_issue_discard(bdev, start >> 9, bytes_left >> 9,
-					   GFP_NOFS, 0);
+					   GFP_NOFS);
 		if (!ret)
 			*discarded_bytes += bytes_left;
 	}
@@ -1291,7 +1291,7 @@ static int do_discard_extent(struct btrfs_io_stripe *stripe, u64 *bytes)
 		ret = btrfs_reset_device_zone(dev_replace->tgtdev, phys, len,
 					      &discarded);
 		discarded += src_disc;
-	} else if (blk_queue_discard(bdev_get_queue(stripe->dev->bdev))) {
+	} else if (bdev_max_discard_sectors(stripe->dev->bdev)) {
 		ret = btrfs_issue_discard(dev->bdev, phys, len, &discarded);
 	} else {
 		ret = 0;
@@ -5987,7 +5987,7 @@ static int btrfs_trim_free_extents(struct btrfs_device *device, u64 *trimmed)
 	*trimmed = 0;
 
 	/* Discard not supported = nothing to do. */
-	if (!blk_queue_discard(bdev_get_queue(device->bdev)))
+	if (!bdev_max_discard_sectors(device->bdev))
 		return 0;
 
 	/* Not writable = nothing to do. */
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index be6c24577dbe..4b28aaea2702 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -468,7 +468,6 @@ static noinline int btrfs_ioctl_fitrim(struct btrfs_fs_info *fs_info,
 					void __user *arg)
 {
 	struct btrfs_device *device;
-	struct request_queue *q;
 	struct fstrim_range range;
 	u64 minlen = ULLONG_MAX;
 	u64 num_devices = 0;
@@ -498,14 +497,11 @@ static noinline int btrfs_ioctl_fitrim(struct btrfs_fs_info *fs_info,
 	rcu_read_lock();
 	list_for_each_entry_rcu(device, &fs_info->fs_devices->devices,
 				dev_list) {
-		if (!device->bdev)
+		if (!device->bdev || !bdev_max_discard_sectors(device->bdev))
 			continue;
-		q = bdev_get_queue(device->bdev);
-		if (blk_queue_discard(q)) {
-			num_devices++;
-			minlen = min_t(u64, q->limits.discard_granularity,
-				     minlen);
-		}
+		num_devices++;
+		minlen = min_t(u64, bdev_discard_granularity(device->bdev),
+				    minlen);
 	}
 	rcu_read_unlock();
 
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index a8cc736731fd..b6b00338037c 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -405,7 +405,6 @@ void btrfs_free_device(struct btrfs_device *device)
 	WARN_ON(!list_empty(&device->post_commit_list));
 	rcu_string_free(device->name);
 	extent_io_tree_release(&device->alloc_state);
-	bio_put(device->flush_bio);
 	btrfs_destroy_dev_zone_info(device);
 	kfree(device);
 }
@@ -643,7 +642,7 @@ static int btrfs_open_one_device(struct btrfs_fs_devices *fs_devices,
 			set_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state);
 	}
 
-	if (!blk_queue_nonrot(bdev_get_queue(bdev)))
+	if (!bdev_nonrot(bdev))
 		fs_devices->rotating = true;
 
 	device->bdev = bdev;
@@ -2706,7 +2705,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 
 	atomic64_add(device->total_bytes, &fs_info->free_chunk_space);
 
-	if (!blk_queue_nonrot(bdev_get_queue(bdev)))
+	if (!bdev_nonrot(bdev))
 		fs_devices->rotating = true;
 
 	orig_super_total_bytes = btrfs_super_total_bytes(fs_info->super_copy);
@@ -6949,16 +6948,6 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
 	if (!dev)
 		return ERR_PTR(-ENOMEM);
 
-	/*
-	 * Preallocate a bio that's always going to be used for flushing device
-	 * barriers and matches the device lifespan
-	 */
-	dev->flush_bio = bio_kmalloc(GFP_KERNEL, 0);
-	if (!dev->flush_bio) {
-		kfree(dev);
-		return ERR_PTR(-ENOMEM);
-	}
-
 	INIT_LIST_HEAD(&dev->dev_list);
 	INIT_LIST_HEAD(&dev->dev_alloc_list);
 	INIT_LIST_HEAD(&dev->post_commit_list);
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index f3e28f11cfb6..b11c563d2025 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -121,8 +121,8 @@ struct btrfs_device {
 	/* bytes used on the current transaction */
 	u64 commit_bytes_used;
 
-	/* for sending down flush barriers */
-	struct bio *flush_bio;
+	/* Bio used for flushing device barriers */
+	struct bio flush_bio;
 	struct completion flush_wait;
 
 	/* per-device scrub information */
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index d31b0eda210f..29b54fd9c128 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -350,7 +350,6 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
 	struct btrfs_fs_info *fs_info = device->fs_info;
 	struct btrfs_zoned_device_info *zone_info = NULL;
 	struct block_device *bdev = device->bdev;
-	struct request_queue *queue = bdev_get_queue(bdev);
 	unsigned int max_active_zones;
 	unsigned int nactive;
 	sector_t nr_sectors;
@@ -410,7 +409,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache)
 	if (!IS_ALIGNED(nr_sectors, zone_sectors))
 		zone_info->nr_zones++;
 
-	max_active_zones = queue_max_active_zones(queue);
+	max_active_zones = bdev_max_active_zones(bdev);
 	if (max_active_zones && max_active_zones < BTRFS_MIN_ACTIVE_ZONES) {
 		btrfs_err_in_rcu(fs_info,
 "zoned: %s: max active zones %u is too small, need at least %u active zones",
diff --git a/fs/direct-io.c b/fs/direct-io.c
index aef06e607b40..840752006f60 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1115,11 +1115,10 @@ static inline int drop_refcount(struct dio *dio)
  * individual fields and will generate much worse code. This is important
  * for the whole file.
  */
-static inline ssize_t
-do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
-		      struct block_device *bdev, struct iov_iter *iter,
-		      get_block_t get_block, dio_iodone_t end_io,
-		      dio_submit_t submit_io, int flags)
+ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
+		struct block_device *bdev, struct iov_iter *iter,
+		get_block_t get_block, dio_iodone_t end_io,
+		dio_submit_t submit_io, int flags)
 {
 	unsigned i_blkbits = READ_ONCE(inode->i_blkbits);
 	unsigned blkbits = i_blkbits;
@@ -1334,29 +1333,6 @@ fail_dio:
 	kmem_cache_free(dio_cache, dio);
 	return retval;
 }
-
-ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
-			     struct block_device *bdev, struct iov_iter *iter,
-			     get_block_t get_block,
-			     dio_iodone_t end_io, dio_submit_t submit_io,
-			     int flags)
-{
-	/*
-	 * The block device state is needed in the end to finally
-	 * submit everything.  Since it's likely to be cache cold
-	 * prefetch it here as first thing to hide some of the
-	 * latency.
-	 *
-	 * Attempt to prefetch the pieces we likely need later.
-	 */
-	prefetch(&bdev->bd_disk->part_tbl);
-	prefetch(bdev->bd_disk->queue);
-	prefetch((char *)bdev->bd_disk->queue + SMP_CACHE_BYTES);
-
-	return do_blockdev_direct_IO(iocb, inode, bdev, iter, get_block,
-				     end_io, submit_io, flags);
-}
-
 EXPORT_SYMBOL(__blockdev_direct_IO);
 
 static __init int dio_init(void)
diff --git a/fs/exfat/file.c b/fs/exfat/file.c
index 2f5130059236..20d4e47f57ab 100644
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -351,21 +351,20 @@ out:
 
 static int exfat_ioctl_fitrim(struct inode *inode, unsigned long arg)
 {
-	struct request_queue *q = bdev_get_queue(inode->i_sb->s_bdev);
 	struct fstrim_range range;
 	int ret = 0;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (!blk_queue_discard(q))
+	if (!bdev_max_discard_sectors(inode->i_sb->s_bdev))
 		return -EOPNOTSUPP;
 
 	if (copy_from_user(&range, (struct fstrim_range __user *)arg, sizeof(range)))
 		return -EFAULT;
 
 	range.minlen = max_t(unsigned int, range.minlen,
-				q->limits.discard_granularity);
+				bdev_discard_granularity(inode->i_sb->s_bdev));
 
 	ret = exfat_trim_fs(inode, &range);
 	if (ret < 0)
diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index 8ca21e7917d1..be0788ecaf20 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -627,13 +627,9 @@ static int exfat_fill_super(struct super_block *sb, struct fs_context *fc)
 	if (opts->allow_utime == (unsigned short)-1)
 		opts->allow_utime = ~opts->fs_dmask & 0022;
 
-	if (opts->discard) {
-		struct request_queue *q = bdev_get_queue(sb->s_bdev);
-
-		if (!blk_queue_discard(q)) {
-			exfat_warn(sb, "mounting with \"discard\" option, but the device does not support discard");
-			opts->discard = 0;
-		}
+	if (opts->discard && !bdev_max_discard_sectors(sb->s_bdev)) {
+		exfat_warn(sb, "mounting with \"discard\" option, but the device does not support discard");
+		opts->discard = 0;
 	}
 
 	sb->s_flags |= SB_NODIRATIME;
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index ba44fa1be70a..4d1d2326eee9 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -1044,7 +1044,6 @@ static int ext4_ioctl_checkpoint(struct file *filp, unsigned long arg)
 	__u32 flags = 0;
 	unsigned int flush_flags = 0;
 	struct super_block *sb = file_inode(filp)->i_sb;
-	struct request_queue *q;
 
 	if (copy_from_user(&flags, (__u32 __user *)arg,
 				sizeof(__u32)))
@@ -1065,10 +1064,8 @@ static int ext4_ioctl_checkpoint(struct file *filp, unsigned long arg)
 	if (flags & ~EXT4_IOC_CHECKPOINT_FLAG_VALID)
 		return -EINVAL;
 
-	q = bdev_get_queue(EXT4_SB(sb)->s_journal->j_dev);
-	if (!q)
-		return -ENXIO;
-	if ((flags & JBD2_JOURNAL_FLUSH_DISCARD) && !blk_queue_discard(q))
+	if ((flags & JBD2_JOURNAL_FLUSH_DISCARD) &&
+	    !bdev_max_discard_sectors(EXT4_SB(sb)->s_journal->j_dev))
 		return -EOPNOTSUPP;
 
 	if (flags & EXT4_IOC_CHECKPOINT_FLAG_DRY_RUN)
@@ -1393,14 +1390,13 @@ resizefs_out:
 
 	case FITRIM:
 	{
-		struct request_queue *q = bdev_get_queue(sb->s_bdev);
 		struct fstrim_range range;
 		int ret = 0;
 
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 
-		if (!blk_queue_discard(q))
+		if (!bdev_max_discard_sectors(sb->s_bdev))
 			return -EOPNOTSUPP;
 
 		/*
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 252c168454c7..ea653d19f9ec 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3498,7 +3498,7 @@ int ext4_mb_init(struct super_block *sb)
 		spin_lock_init(&lg->lg_prealloc_lock);
 	}
 
-	if (blk_queue_nonrot(bdev_get_queue(sb->s_bdev)))
+	if (bdev_nonrot(sb->s_bdev))
 		sbi->s_mb_max_linear_groups = 0;
 	else
 		sbi->s_mb_max_linear_groups = MB_DEFAULT_LINEAR_LIMIT;
@@ -3629,7 +3629,7 @@ static inline int ext4_issue_discard(struct super_block *sb,
 		return __blkdev_issue_discard(sb->s_bdev,
 			(sector_t)discard_block << (sb->s_blocksize_bits - 9),
 			(sector_t)count << (sb->s_blocksize_bits - 9),
-			GFP_NOFS, 0, biop);
+			GFP_NOFS, biop);
 	} else
 		return sb_issue_discard(sb, discard_block, count, GFP_NOFS, 0);
 }
@@ -6455,7 +6455,7 @@ ext4_trim_all_free(struct super_block *sb, ext4_group_t group,
  */
 int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
 {
-	struct request_queue *q = bdev_get_queue(sb->s_bdev);
+	unsigned int discard_granularity = bdev_discard_granularity(sb->s_bdev);
 	struct ext4_group_info *grp;
 	ext4_group_t group, first_group, last_group;
 	ext4_grpblk_t cnt = 0, first_cluster, last_cluster;
@@ -6475,9 +6475,9 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
 	    range->len < sb->s_blocksize)
 		return -EINVAL;
 	/* No point to try to trim less than discard granularity */
-	if (range->minlen < q->limits.discard_granularity) {
+	if (range->minlen < discard_granularity) {
 		minlen = EXT4_NUM_B2C(EXT4_SB(sb),
-			q->limits.discard_granularity >> sb->s_blocksize_bits);
+				discard_granularity >> sb->s_blocksize_bits);
 		if (minlen > EXT4_CLUSTERS_PER_GROUP(sb))
 			goto out;
 	}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 1466fbdbc8e3..6900da973ce2 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5474,13 +5474,9 @@ no_journal:
 			goto failed_mount9;
 	}
 
-	if (test_opt(sb, DISCARD)) {
-		struct request_queue *q = bdev_get_queue(sb->s_bdev);
-		if (!blk_queue_discard(q))
-			ext4_msg(sb, KERN_WARNING,
-				 "mounting with \"discard\" option, but "
-				 "the device does not support discard");
-	}
+	if (test_opt(sb, DISCARD) && !bdev_max_discard_sectors(sb->s_bdev))
+		ext4_msg(sb, KERN_WARNING,
+			 "mounting with \"discard\" option, but the device does not support discard");
 
 	if (es->s_error_count)
 		mod_timer(&sbi->s_err_report, jiffies + 300*HZ); /* 5 minutes */
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 8c570de21ed5..2b2b3c87e45e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4372,8 +4372,7 @@ static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
 
 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
 {
-	return blk_queue_discard(bdev_get_queue(bdev)) ||
-	       bdev_is_zoned(bdev);
+	return bdev_max_discard_sectors(bdev) || bdev_is_zoned(bdev);
 }
 
 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 5b89af0f27f0..35b6c720c2bc 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2285,7 +2285,6 @@ static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
 {
 	struct inode *inode = file_inode(filp);
 	struct super_block *sb = inode->i_sb;
-	struct request_queue *q = bdev_get_queue(sb->s_bdev);
 	struct fstrim_range range;
 	int ret;
 
@@ -2304,7 +2303,7 @@ static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
 		return ret;
 
 	range.minlen = max((unsigned int)range.minlen,
-				q->limits.discard_granularity);
+			   bdev_discard_granularity(sb->s_bdev));
 	ret = f2fs_trim_fs(F2FS_SB(sb), &range);
 	mnt_drop_write_file(filp);
 	if (ret < 0)
@@ -3686,18 +3685,18 @@ out:
 static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode,
 		pgoff_t off, block_t block, block_t len, u32 flags)
 {
-	struct request_queue *q = bdev_get_queue(bdev);
 	sector_t sector = SECTOR_FROM_BLOCK(block);
 	sector_t nr_sects = SECTOR_FROM_BLOCK(len);
 	int ret = 0;
 
-	if (!q)
-		return -ENXIO;
-
-	if (flags & F2FS_TRIM_FILE_DISCARD)
-		ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS,
-						blk_queue_secure_erase(q) ?
-						BLKDEV_DISCARD_SECURE : 0);
+	if (flags & F2FS_TRIM_FILE_DISCARD) {
+		if (bdev_max_secure_erase_sectors(bdev))
+			ret = blkdev_issue_secure_erase(bdev, sector, nr_sects,
+					GFP_NOFS);
+		else
+			ret = blkdev_issue_discard(bdev, sector, nr_sects,
+					GFP_NOFS);
+	}
 
 	if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) {
 		if (IS_ENCRYPTED(inode))
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index bd9731cdec56..7225ce09f3ab 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1196,9 +1196,8 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi,
 						unsigned int *issued)
 {
 	struct block_device *bdev = dc->bdev;
-	struct request_queue *q = bdev_get_queue(bdev);
 	unsigned int max_discard_blocks =
-			SECTOR_TO_BLOCK(q->limits.max_discard_sectors);
+			SECTOR_TO_BLOCK(bdev_max_discard_sectors(bdev));
 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
 	struct list_head *wait_list = (dpolicy->type == DPOLICY_FSTRIM) ?
 					&(dcc->fstrim_list) : &(dcc->wait_list);
@@ -1245,7 +1244,7 @@ static int __submit_discard_cmd(struct f2fs_sb_info *sbi,
 		err = __blkdev_issue_discard(bdev,
 					SECTOR_FROM_BLOCK(start),
 					SECTOR_FROM_BLOCK(len),
-					GFP_NOFS, 0, &bio);
+					GFP_NOFS, &bio);
 submit:
 		if (err) {
 			spin_lock_irqsave(&dc->lock, flags);
@@ -1375,9 +1374,8 @@ static void __update_discard_tree_range(struct f2fs_sb_info *sbi,
 	struct discard_cmd *dc;
 	struct discard_info di = {0};
 	struct rb_node **insert_p = NULL, *insert_parent = NULL;
-	struct request_queue *q = bdev_get_queue(bdev);
 	unsigned int max_discard_blocks =
-			SECTOR_TO_BLOCK(q->limits.max_discard_sectors);
+			SECTOR_TO_BLOCK(bdev_max_discard_sectors(bdev));
 	block_t end = lstart + len;
 
 	dc = (struct discard_cmd *)f2fs_lookup_rb_tree_ret(&dcc->root,
diff --git a/fs/fat/file.c b/fs/fat/file.c
index a5a309fcc7fa..bf91f977debe 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -127,13 +127,12 @@ static int fat_ioctl_fitrim(struct inode *inode, unsigned long arg)
 	struct super_block *sb = inode->i_sb;
 	struct fstrim_range __user *user_range;
 	struct fstrim_range range;
-	struct request_queue *q = bdev_get_queue(sb->s_bdev);
 	int err;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (!blk_queue_discard(q))
+	if (!bdev_max_discard_sectors(sb->s_bdev))
 		return -EOPNOTSUPP;
 
 	user_range = (struct fstrim_range __user *)arg;
@@ -141,7 +140,7 @@ static int fat_ioctl_fitrim(struct inode *inode, unsigned long arg)
 		return -EFAULT;
 
 	range.minlen = max_t(unsigned int, range.minlen,
-			     q->limits.discard_granularity);
+			     bdev_discard_granularity(sb->s_bdev));
 
 	err = fat_trim_fs(inode, &range);
 	if (err < 0)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index bf6051bdf1d1..3d1afb95a925 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1872,13 +1872,9 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
 		goto out_fail;
 	}
 
-	if (sbi->options.discard) {
-		struct request_queue *q = bdev_get_queue(sb->s_bdev);
-		if (!blk_queue_discard(q))
-			fat_msg(sb, KERN_WARNING,
-					"mounting with \"discard\" option, but "
-					"the device does not support discard");
-	}
+	if (sbi->options.discard && !bdev_max_discard_sectors(sb->s_bdev))
+		fat_msg(sb, KERN_WARNING,
+			"mounting with \"discard\" option, but the device does not support discard");
 
 	fat_set_state(sb, 1, 0);
 	return 0;
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 801ad9f4f2be..6d26bb525484 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1386,7 +1386,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
 {
 	struct inode *inode = file_inode(filp);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
-	struct request_queue *q = bdev_get_queue(sdp->sd_vfs->s_bdev);
+	struct block_device *bdev = sdp->sd_vfs->s_bdev;
 	struct buffer_head *bh;
 	struct gfs2_rgrpd *rgd;
 	struct gfs2_rgrpd *rgd_end;
@@ -1405,7 +1405,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
 	if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
 		return -EROFS;
 
-	if (!blk_queue_discard(q))
+	if (!bdev_max_discard_sectors(bdev))
 		return -EOPNOTSUPP;
 
 	if (copy_from_user(&r, argp, sizeof(r)))
@@ -1418,8 +1418,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
 	start = r.start >> bs_shift;
 	end = start + (r.len >> bs_shift);
 	minlen = max_t(u64, r.minlen, sdp->sd_sb.sb_bsize);
-	minlen = max_t(u64, minlen,
-		       q->limits.discard_granularity) >> bs_shift;
+	minlen = max_t(u64, minlen, bdev_discard_granularity(bdev)) >> bs_shift;
 
 	if (end <= start || minlen > sdp->sd_max_rg_data)
 		return -EINVAL;
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index b08f5dc31780..80f9b047aa1b 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -56,7 +56,8 @@ static void iomap_dio_submit_bio(const struct iomap_iter *iter,
 {
 	atomic_inc(&dio->ref);
 
-	if (dio->iocb->ki_flags & IOCB_HIPRI) {
+	/* Sync dio can't be polled reliably */
+	if ((dio->iocb->ki_flags & IOCB_HIPRI) && !is_sync_kiocb(dio->iocb)) {
 		bio_set_polled(bio, dio->iocb);
 		dio->submit.poll_bio = bio;
 	}
@@ -265,8 +266,7 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter,
 		 * cache flushes on IO completion.
 		 */
 		if (!(iomap->flags & (IOMAP_F_SHARED|IOMAP_F_DIRTY)) &&
-		    (dio->flags & IOMAP_DIO_WRITE_FUA) &&
-		    blk_queue_fua(bdev_get_queue(iomap->bdev)))
+		    (dio->flags & IOMAP_DIO_WRITE_FUA) && bdev_fua(iomap->bdev))
 			use_fua = true;
 	}
 
@@ -654,9 +654,7 @@ __iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
 			if (!READ_ONCE(dio->submit.waiter))
 				break;
 
-			if (!dio->submit.poll_bio ||
-			    !bio_poll(dio->submit.poll_bio, NULL, 0))
-				blk_io_schedule();
+			blk_io_schedule();
 		}
 		__set_current_state(TASK_RUNNING);
 	}
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index fcacafa4510d..c0cbeeaec2d1 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1762,7 +1762,6 @@ static int __jbd2_journal_erase(journal_t *journal, unsigned int flags)
 	unsigned long block, log_offset; /* logical */
 	unsigned long long phys_block, block_start, block_stop; /* physical */
 	loff_t byte_start, byte_stop, byte_count;
-	struct request_queue *q = bdev_get_queue(journal->j_dev);
 
 	/* flags must be set to either discard or zeroout */
 	if ((flags & ~JBD2_JOURNAL_FLUSH_VALID) || !flags ||
@@ -1770,10 +1769,8 @@ static int __jbd2_journal_erase(journal_t *journal, unsigned int flags)
 			(flags & JBD2_JOURNAL_FLUSH_ZEROOUT)))
 		return -EINVAL;
 
-	if (!q)
-		return -ENXIO;
-
-	if ((flags & JBD2_JOURNAL_FLUSH_DISCARD) && !blk_queue_discard(q))
+	if ((flags & JBD2_JOURNAL_FLUSH_DISCARD) &&
+	    !bdev_max_discard_sectors(journal->j_dev))
 		return -EOPNOTSUPP;
 
 	/*
@@ -1828,7 +1825,7 @@ static int __jbd2_journal_erase(journal_t *journal, unsigned int flags)
 			err = blkdev_issue_discard(journal->j_dev,
 					byte_start >> SECTOR_SHIFT,
 					byte_count >> SECTOR_SHIFT,
-					GFP_NOFS, 0);
+					GFP_NOFS);
 		} else if (flags & JBD2_JOURNAL_FLUSH_ZEROOUT) {
 			err = blkdev_issue_zeroout(journal->j_dev,
 					byte_start >> SECTOR_SHIFT,
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index 03a845ab4f00..1e7b177ece60 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -110,14 +110,13 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	case FITRIM:
 	{
 		struct super_block *sb = inode->i_sb;
-		struct request_queue *q = bdev_get_queue(sb->s_bdev);
 		struct fstrim_range range;
 		s64 ret = 0;
 
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 
-		if (!blk_queue_discard(q)) {
+		if (!bdev_max_discard_sectors(sb->s_bdev)) {
 			jfs_warn("FITRIM not supported on device");
 			return -EOPNOTSUPP;
 		}
@@ -127,7 +126,7 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 			return -EFAULT;
 
 		range.minlen = max_t(unsigned int, range.minlen,
-			q->limits.discard_granularity);
+				     bdev_discard_granularity(sb->s_bdev));
 
 		ret = jfs_ioc_trim(inode, &range);
 		if (ret < 0)
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index f1a13a74cddf..85d4f44f2ac4 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -372,19 +372,16 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 		}
 
 		case Opt_discard:
-		{
-			struct request_queue *q = bdev_get_queue(sb->s_bdev);
 			/* if set to 1, even copying files will cause
 			 * trimming :O
 			 * -> user has more control over the online trimming
 			 */
 			sbi->minblks_trim = 64;
-			if (blk_queue_discard(q))
+			if (bdev_max_discard_sectors(sb->s_bdev))
 				*flag |= JFS_DISCARD;
 			else
 				pr_err("JFS: discard option not supported on device\n");
 			break;
-		}
 
 		case Opt_nodiscard:
 			*flag &= ~JFS_DISCARD;
@@ -392,10 +389,9 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 
 		case Opt_discard_minblk:
 		{
-			struct request_queue *q = bdev_get_queue(sb->s_bdev);
 			char *minblks_trim = args[0].from;
 			int rc;
-			if (blk_queue_discard(q)) {
+			if (bdev_max_discard_sectors(sb->s_bdev)) {
 				*flag |= JFS_DISCARD;
 				rc = kstrtouint(minblks_trim, 0,
 						&sbi->minblks_trim);
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index fec194a666f4..87e1004b606d 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -1052,20 +1052,20 @@ out:
 static int nilfs_ioctl_trim_fs(struct inode *inode, void __user *argp)
 {
 	struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
-	struct request_queue *q = bdev_get_queue(nilfs->ns_bdev);
 	struct fstrim_range range;
 	int ret;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (!blk_queue_discard(q))
+	if (!bdev_max_discard_sectors(nilfs->ns_bdev))
 		return -EOPNOTSUPP;
 
 	if (copy_from_user(&range, argp, sizeof(range)))
 		return -EFAULT;
 
-	range.minlen = max_t(u64, range.minlen, q->limits.discard_granularity);
+	range.minlen = max_t(u64, range.minlen,
+			     bdev_discard_granularity(nilfs->ns_bdev));
 
 	down_read(&nilfs->ns_segctor_sem);
 	ret = nilfs_sufile_trim_fs(nilfs->ns_sufile, &range);
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index e385cca2004a..77ff8e95421f 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -1100,7 +1100,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range)
 				ret = blkdev_issue_discard(nilfs->ns_bdev,
 						start * sects_per_block,
 						nblocks * sects_per_block,
-						GFP_NOFS, 0);
+						GFP_NOFS);
 				if (ret < 0) {
 					put_bh(su_bh);
 					goto out_sem;
@@ -1134,7 +1134,7 @@ int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range)
 			ret = blkdev_issue_discard(nilfs->ns_bdev,
 					start * sects_per_block,
 					nblocks * sects_per_block,
-					GFP_NOFS, 0);
+					GFP_NOFS);
 			if (!ret)
 				ndiscarded += nblocks;
 		}
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index dd48a8f74d57..3b4a079c9617 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -672,7 +672,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump,
 			ret = blkdev_issue_discard(nilfs->ns_bdev,
 						   start * sects_per_block,
 						   nblocks * sects_per_block,
-						   GFP_NOFS, 0);
+						   GFP_NOFS);
 			if (ret < 0)
 				return ret;
 			nblocks = 0;
@@ -682,7 +682,7 @@ int nilfs_discard_segments(struct the_nilfs *nilfs, __u64 *segnump,
 		ret = blkdev_issue_discard(nilfs->ns_bdev,
 					   start * sects_per_block,
 					   nblocks * sects_per_block,
-					   GFP_NOFS, 0);
+					   GFP_NOFS);
 	return ret;
 }
 
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 787b53b984ee..15806eeae217 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -22,20 +22,20 @@ static int ntfs_ioctl_fitrim(struct ntfs_sb_info *sbi, unsigned long arg)
 {
 	struct fstrim_range __user *user_range;
 	struct fstrim_range range;
-	struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
 	int err;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (!blk_queue_discard(q))
+	if (!bdev_max_discard_sectors(sbi->sb->s_bdev))
 		return -EOPNOTSUPP;
 
 	user_range = (struct fstrim_range __user *)arg;
 	if (copy_from_user(&range, user_range, sizeof(range)))
 		return -EFAULT;
 
-	range.minlen = max_t(u32, range.minlen, q->limits.discard_granularity);
+	range.minlen = max_t(u32, range.minlen,
+			     bdev_discard_granularity(sbi->sb->s_bdev));
 
 	err = ntfs_trim_fs(sbi, &range);
 	if (err < 0)
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index 278dcf502410..5781b9e8e3d8 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -882,7 +882,6 @@ static int ntfs_fill_super(struct super_block *sb, struct fs_context *fc)
 	int err;
 	struct ntfs_sb_info *sbi = sb->s_fs_info;
 	struct block_device *bdev = sb->s_bdev;
-	struct request_queue *rq;
 	struct inode *inode;
 	struct ntfs_inode *ni;
 	size_t i, tt;
@@ -912,15 +911,14 @@ static int ntfs_fill_super(struct super_block *sb, struct fs_context *fc)
 		goto out;
 	}
 
-	rq = bdev_get_queue(bdev);
-	if (blk_queue_discard(rq) && rq->limits.discard_granularity) {
-		sbi->discard_granularity = rq->limits.discard_granularity;
+	if (bdev_max_discard_sectors(bdev) && bdev_discard_granularity(bdev)) {
+		sbi->discard_granularity = bdev_discard_granularity(bdev);
 		sbi->discard_granularity_mask_inv =
 			~(u64)(sbi->discard_granularity - 1);
 	}
 
 	/* Parse boot. */
-	err = ntfs_init_from_boot(sb, rq ? queue_logical_block_size(rq) : 512,
+	err = ntfs_init_from_boot(sb, bdev_logical_block_size(bdev),
 				  bdev_nr_bytes(bdev));
 	if (err)
 		goto out;
@@ -1335,7 +1333,7 @@ int ntfs_discard(struct ntfs_sb_info *sbi, CLST lcn, CLST len)
 		return 0;
 
 	err = blkdev_issue_discard(sb->s_bdev, start >> 9, (end - start) >> 9,
-				   GFP_NOFS, 0);
+				   GFP_NOFS);
 
 	if (err == -EOPNOTSUPP)
 		sbi->flags |= NTFS_FLAGS_NODISCARD;
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index f59461d85da4..afd54ec66103 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -903,20 +903,19 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	case FITRIM:
 	{
 		struct super_block *sb = inode->i_sb;
-		struct request_queue *q = bdev_get_queue(sb->s_bdev);
 		struct fstrim_range range;
 		int ret = 0;
 
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 
-		if (!blk_queue_discard(q))
+		if (!bdev_max_discard_sectors(sb->s_bdev))
 			return -EOPNOTSUPP;
 
 		if (copy_from_user(&range, argp, sizeof(range)))
 			return -EFAULT;
 
-		range.minlen = max_t(u64, q->limits.discard_granularity,
+		range.minlen = max_t(u64, bdev_discard_granularity(sb->s_bdev),
 				     range.minlen);
 		ret = ocfs2_trim_fs(sb, &range);
 		if (ret < 0)
diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 622c844f6d11..8879d052f96c 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -86,17 +86,10 @@ static int squashfs_bio_read(struct super_block *sb, u64 index, int length,
 	int error, i;
 	struct bio *bio;
 
-	if (page_count <= BIO_MAX_VECS) {
-		bio = bio_alloc(sb->s_bdev, page_count, REQ_OP_READ, GFP_NOIO);
-	} else {
-		bio = bio_kmalloc(GFP_NOIO, page_count);
-		bio_set_dev(bio, sb->s_bdev);
-		bio->bi_opf = REQ_OP_READ;
-	}
-
+	bio = bio_kmalloc(page_count, GFP_NOIO);
 	if (!bio)
 		return -ENOMEM;
-
+	bio_init(bio, sb->s_bdev, bio->bi_inline_vecs, page_count, REQ_OP_READ);
 	bio->bi_iter.bi_sector = block * (msblk->devblksize >> SECTOR_SHIFT);
 
 	for (i = 0; i < page_count; ++i) {
@@ -126,7 +119,8 @@ static int squashfs_bio_read(struct super_block *sb, u64 index, int length,
 
 out_free_bio:
 	bio_free_pages(bio);
-	bio_put(bio);
+	bio_uninit(bio);
+	kfree(bio);
 	return error;
 }
 
@@ -190,7 +184,8 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length,
 			length |= data[0] << 8;
 		}
 		bio_free_pages(bio);
-		bio_put(bio);
+		bio_uninit(bio);
+		kfree(bio);
 
 		compressed = SQUASHFS_COMPRESSED(length);
 		length = SQUASHFS_COMPRESSED_SIZE(length);
@@ -224,7 +219,8 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length,
 
 out_free_bio:
 	bio_free_pages(bio);
-	bio_put(bio);
+	bio_uninit(bio);
+	kfree(bio);
 out:
 	if (res < 0) {
 		ERROR("Failed to read block 0x%llx: %d\n", index, res);
diff --git a/fs/super.c b/fs/super.c
index f1d4a193602d..60f57c7bc0a6 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1204,7 +1204,7 @@ static int set_bdev_super(struct super_block *s, void *data)
 	s->s_dev = s->s_bdev->bd_dev;
 	s->s_bdi = bdi_get(s->s_bdev->bd_disk->bdi);
 
-	if (blk_queue_stable_writes(s->s_bdev->bd_disk->queue))
+	if (bdev_stable_writes(s->s_bdev))
 		s->s_iflags |= SB_I_STABLE_WRITES;
 	return 0;
 }
diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c
index 0191de8ce9ce..c6fe3f6ebb6b 100644
--- a/fs/xfs/xfs_discard.c
+++ b/fs/xfs/xfs_discard.c
@@ -114,7 +114,7 @@ xfs_trim_extents(
 		}
 
 		trace_xfs_discard_extent(mp, agno, fbno, flen);
-		error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS, 0);
+		error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS);
 		if (error)
 			goto out_del_cursor;
 		*blocks_trimmed += flen;
@@ -152,8 +152,8 @@ xfs_ioc_trim(
 	struct xfs_mount		*mp,
 	struct fstrim_range __user	*urange)
 {
-	struct request_queue	*q = bdev_get_queue(mp->m_ddev_targp->bt_bdev);
-	unsigned int		granularity = q->limits.discard_granularity;
+	unsigned int		granularity =
+		bdev_discard_granularity(mp->m_ddev_targp->bt_bdev);
 	struct fstrim_range	range;
 	xfs_daddr_t		start, end, minlen;
 	xfs_agnumber_t		start_agno, end_agno, agno;
@@ -162,7 +162,7 @@ xfs_ioc_trim(
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
-	if (!blk_queue_discard(q))
+	if (!bdev_max_discard_sectors(mp->m_ddev_targp->bt_bdev))
 		return -EOPNOTSUPP;
 
 	/*
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index ba57323bfdce..c9f55e4f0957 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -605,7 +605,7 @@ xlog_discard_busy_extents(
 		error = __blkdev_issue_discard(mp->m_ddev_targp->bt_bdev,
 				XFS_AGB_TO_DADDR(mp, busyp->agno, busyp->bno),
 				XFS_FSB_TO_BB(mp, busyp->length),
-				GFP_NOFS, 0, &bio);
+				GFP_NOFS, &bio);
 		if (error && error != -EOPNOTSUPP) {
 			xfs_info(mp,
 	 "discard failed for extent [0x%llx,%u], error %d",
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 54be9d64093e..a276b8111f63 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1608,14 +1608,10 @@ xfs_fs_fill_super(
 			goto out_filestream_unmount;
 	}
 
-	if (xfs_has_discard(mp)) {
-		struct request_queue *q = bdev_get_queue(sb->s_bdev);
-
-		if (!blk_queue_discard(q)) {
-			xfs_warn(mp, "mounting with \"discard\" option, but "
-					"the device does not support discard");
-			mp->m_features &= ~XFS_FEAT_DISCARD;
-		}
+	if (xfs_has_discard(mp) && !bdev_max_discard_sectors(sb->s_bdev)) {
+		xfs_warn(mp,
+	"mounting with \"discard\" option, but the device does not support discard");
+		mp->m_features &= ~XFS_FEAT_DISCARD;
 	}
 
 	if (xfs_has_reflink(mp)) {
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index e20e7c841489..82da583da17b 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -689,13 +689,12 @@ 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;
+	unsigned int max = bdev_max_zone_append_sectors(bdev);
 	struct bio *bio;
 	ssize_t size;
 	int nr_pages;
 	ssize_t ret;
 
-	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);