diff --git a/Documentation/core-api/symbol-namespaces.rst b/Documentation/core-api/symbol-namespaces.rst
index 32fc73d..034898e 100644
--- a/Documentation/core-api/symbol-namespaces.rst
+++ b/Documentation/core-api/symbol-namespaces.rst
@@ -76,20 +76,21 @@
 within the corresponding compilation unit before the #include for
 <linux/export.h>. Typically it's placed before the first #include statement.
 
-Using the EXPORT_SYMBOL_GPL_FOR_MODULES() macro
------------------------------------------------
+Using the EXPORT_SYMBOL_FOR_MODULES() macro
+-------------------------------------------
 
 Symbols exported using this macro are put into a module namespace. This
-namespace cannot be imported.
+namespace cannot be imported. These exports are GPL-only as they are only
+intended for in-tree modules.
 
 The macro takes a comma separated list of module names, allowing only those
 modules to access this symbol. Simple tail-globs are supported.
 
 For example::
 
-  EXPORT_SYMBOL_GPL_FOR_MODULES(preempt_notifier_inc, "kvm,kvm-*")
+  EXPORT_SYMBOL_FOR_MODULES(preempt_notifier_inc, "kvm,kvm-*")
 
-will limit usage of this symbol to modules whoes name matches the given
+will limit usage of this symbol to modules whose name matches the given
 patterns.
 
 How to use Symbols exported in Namespaces
diff --git a/drivers/pci/controller/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c
index f121836..937ea6a 100644
--- a/drivers/pci/controller/pcie-xilinx.c
+++ b/drivers/pci/controller/pcie-xilinx.c
@@ -400,7 +400,7 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data)
 		if (val & XILINX_PCIE_RPIFR1_MSI_INTR) {
 			val = pcie_read(pcie, XILINX_PCIE_REG_RPIFR2) &
 				XILINX_PCIE_RPIFR2_MSG_DATA;
-			domain = pcie->msi_domain->parent;
+			domain = pcie->msi_domain;
 		} else {
 			val = (val & XILINX_PCIE_RPIFR1_INTR_MASK) >>
 				XILINX_PCIE_RPIFR1_INTR_SHIFT;
diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
index b679c7f..1bd5bf4 100644
--- a/drivers/pci/controller/vmd.c
+++ b/drivers/pci/controller/vmd.c
@@ -306,9 +306,6 @@ static bool vmd_init_dev_msi_info(struct device *dev, struct irq_domain *domain,
 				  struct irq_domain *real_parent,
 				  struct msi_domain_info *info)
 {
-	if (WARN_ON_ONCE(info->bus_token != DOMAIN_BUS_PCI_DEVICE_MSIX))
-		return false;
-
 	if (!msi_lib_init_dev_msi_info(dev, domain, real_parent, info))
 		return false;
 
diff --git a/drivers/tty/serial/8250/8250_rsa.c b/drivers/tty/serial/8250/8250_rsa.c
index d34093c..12a65b7 100644
--- a/drivers/tty/serial/8250/8250_rsa.c
+++ b/drivers/tty/serial/8250/8250_rsa.c
@@ -147,7 +147,7 @@ void rsa_enable(struct uart_8250_port *up)
 	if (up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16)
 		serial_out(up, UART_RSA_FRR, 0);
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_enable, "8250_base");
+EXPORT_SYMBOL_FOR_MODULES(rsa_enable, "8250_base");
 
 /*
  * Attempts to turn off the RSA FIFO and resets the RSA board back to 115kbps compat mode. It is
@@ -179,7 +179,7 @@ void rsa_disable(struct uart_8250_port *up)
 		up->port.uartclk = SERIAL_RSA_BAUD_BASE_LO * 16;
 	uart_port_unlock_irq(&up->port);
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_disable, "8250_base");
+EXPORT_SYMBOL_FOR_MODULES(rsa_disable, "8250_base");
 
 void rsa_autoconfig(struct uart_8250_port *up)
 {
@@ -192,7 +192,7 @@ void rsa_autoconfig(struct uart_8250_port *up)
 	if (__rsa_enable(up))
 		up->port.type = PORT_RSA;
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_autoconfig, "8250_base");
+EXPORT_SYMBOL_FOR_MODULES(rsa_autoconfig, "8250_base");
 
 void rsa_reset(struct uart_8250_port *up)
 {
@@ -201,7 +201,7 @@ void rsa_reset(struct uart_8250_port *up)
 
 	serial_out(up, UART_RSA_FRR, 0);
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_reset, "8250_base");
+EXPORT_SYMBOL_FOR_MODULES(rsa_reset, "8250_base");
 
 #ifdef CONFIG_SERIAL_8250_DEPRECATED_OPTIONS
 #ifndef MODULE
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 1d847a9..180a458 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -129,7 +129,7 @@ struct inode *anon_inode_make_secure_inode(struct super_block *sb, const char *n
 	}
 	return inode;
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(anon_inode_make_secure_inode, "kvm");
+EXPORT_SYMBOL_FOR_MODULES(anon_inode_make_secure_inode, "kvm");
 
 static struct file *__anon_inode_getfile(const char *name,
 					 const struct file_operations *fops,
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index f23d759..c953297 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1512,7 +1512,7 @@ static noinline_for_stack int writepage_delalloc(struct btrfs_inode *inode,
 
 /*
  * Return 0 if we have submitted or queued the sector for submission.
- * Return <0 for critical errors.
+ * Return <0 for critical errors, and the sector will have its dirty flag cleared.
  *
  * Caller should make sure filepos < i_size and handle filepos >= i_size case.
  */
@@ -1535,8 +1535,17 @@ static int submit_one_sector(struct btrfs_inode *inode,
 	ASSERT(filepos < i_size);
 
 	em = btrfs_get_extent(inode, NULL, filepos, sectorsize);
-	if (IS_ERR(em))
+	if (IS_ERR(em)) {
+		/*
+		 * When submission failed, we should still clear the folio dirty.
+		 * Or the folio will be written back again but without any
+		 * ordered extent.
+		 */
+		btrfs_folio_clear_dirty(fs_info, folio, filepos, sectorsize);
+		btrfs_folio_set_writeback(fs_info, folio, filepos, sectorsize);
+		btrfs_folio_clear_writeback(fs_info, folio, filepos, sectorsize);
 		return PTR_ERR(em);
+	}
 
 	extent_offset = filepos - em->start;
 	em_end = btrfs_extent_map_end(em);
@@ -1609,8 +1618,12 @@ static noinline_for_stack int extent_writepage_io(struct btrfs_inode *inode,
 		folio_unlock(folio);
 		return 1;
 	}
-	if (ret < 0)
+	if (ret < 0) {
+		btrfs_folio_clear_dirty(fs_info, folio, start, len);
+		btrfs_folio_set_writeback(fs_info, folio, start, len);
+		btrfs_folio_clear_writeback(fs_info, folio, start, len);
 		return ret;
+	}
 
 	for (cur = start; cur < start + len; cur += fs_info->sectorsize)
 		set_bit((cur - folio_start) >> fs_info->sectorsize_bits, &range_bitmap);
@@ -1666,8 +1679,8 @@ static noinline_for_stack int extent_writepage_io(struct btrfs_inode *inode,
 	 * Here we set writeback and clear for the range. If the full folio
 	 * is no longer dirty then we clear the PAGECACHE_TAG_DIRTY tag.
 	 *
-	 * If we hit any error, the corresponding sector will still be dirty
-	 * thus no need to clear PAGECACHE_TAG_DIRTY.
+	 * If we hit any error, the corresponding sector will have its dirty
+	 * flag cleared and writeback finished, thus no need to handle the error case.
 	 */
 	if (!submitted_io && !error) {
 		btrfs_folio_set_writeback(fs_info, folio, start, len);
@@ -1813,6 +1826,7 @@ static noinline_for_stack bool lock_extent_buffer_for_io(struct extent_buffer *e
 		xas_load(&xas);
 		xas_set_mark(&xas, PAGECACHE_TAG_WRITEBACK);
 		xas_clear_mark(&xas, PAGECACHE_TAG_DIRTY);
+		xas_clear_mark(&xas, PAGECACHE_TAG_TOWRITE);
 		xas_unlock_irqrestore(&xas, flags);
 
 		btrfs_set_header_flag(eb, BTRFS_HEADER_FLAG_WRITTEN);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d740910..9e4aec7 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4189,6 +4189,23 @@ int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans,
 	return ret;
 }
 
+static void update_time_after_link_or_unlink(struct btrfs_inode *dir)
+{
+	struct timespec64 now;
+
+	/*
+	 * If we are replaying a log tree, we do not want to update the mtime
+	 * and ctime of the parent directory with the current time, since the
+	 * log replay procedure is responsible for setting them to their correct
+	 * values (the ones it had when the fsync was done).
+	 */
+	if (test_bit(BTRFS_FS_LOG_RECOVERING, &dir->root->fs_info->flags))
+		return;
+
+	now = inode_set_ctime_current(&dir->vfs_inode);
+	inode_set_mtime_to_ts(&dir->vfs_inode, now);
+}
+
 /*
  * unlink helper that gets used here in inode.c and in the tree logging
  * recovery code.  It remove a link in a directory with a given name, and
@@ -4289,7 +4306,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
 	inode_inc_iversion(&inode->vfs_inode);
 	inode_set_ctime_current(&inode->vfs_inode);
 	inode_inc_iversion(&dir->vfs_inode);
- 	inode_set_mtime_to_ts(&dir->vfs_inode, inode_set_ctime_current(&dir->vfs_inode));
+	update_time_after_link_or_unlink(dir);
 
 	return btrfs_update_inode(trans, dir);
 }
@@ -6683,15 +6700,7 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
 	btrfs_i_size_write(parent_inode, parent_inode->vfs_inode.i_size +
 			   name->len * 2);
 	inode_inc_iversion(&parent_inode->vfs_inode);
-	/*
-	 * If we are replaying a log tree, we do not want to update the mtime
-	 * and ctime of the parent directory with the current time, since the
-	 * log replay procedure is responsible for setting them to their correct
-	 * values (the ones it had when the fsync was done).
-	 */
-	if (!test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags))
-		inode_set_mtime_to_ts(&parent_inode->vfs_inode,
-				      inode_set_ctime_current(&parent_inode->vfs_inode));
+	update_time_after_link_or_unlink(parent_inode);
 
 	ret = btrfs_update_inode(trans, parent_inode);
 	if (ret)
diff --git a/fs/btrfs/subpage.c b/fs/btrfs/subpage.c
index c9b3821..cb4f978 100644
--- a/fs/btrfs/subpage.c
+++ b/fs/btrfs/subpage.c
@@ -448,8 +448,25 @@ void btrfs_subpage_set_writeback(const struct btrfs_fs_info *fs_info,
 
 	spin_lock_irqsave(&bfs->lock, flags);
 	bitmap_set(bfs->bitmaps, start_bit, len >> fs_info->sectorsize_bits);
+
+	/*
+	 * Don't clear the TOWRITE tag when starting writeback on a still-dirty
+	 * folio. Doing so can cause WB_SYNC_ALL writepages() to overlook it,
+	 * assume writeback is complete, and exit too early — violating sync
+	 * ordering guarantees.
+	 */
 	if (!folio_test_writeback(folio))
-		folio_start_writeback(folio);
+		__folio_start_writeback(folio, true);
+	if (!folio_test_dirty(folio)) {
+		struct address_space *mapping = folio_mapping(folio);
+		XA_STATE(xas, &mapping->i_pages, folio->index);
+		unsigned long flags;
+
+		xas_lock_irqsave(&xas, flags);
+		xas_load(&xas);
+		xas_clear_mark(&xas, PAGECACHE_TAG_TOWRITE);
+		xas_unlock_irqrestore(&xas, flags);
+	}
 	spin_unlock_irqrestore(&bfs->lock, flags);
 }
 
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 68e35a3..a262b494 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -88,6 +88,9 @@ struct btrfs_fs_context {
 	refcount_t refs;
 };
 
+static void btrfs_emit_options(struct btrfs_fs_info *info,
+			       struct btrfs_fs_context *old);
+
 enum {
 	Opt_acl,
 	Opt_clear_cache,
@@ -698,12 +701,9 @@ bool btrfs_check_options(const struct btrfs_fs_info *info,
 
 	if (!test_bit(BTRFS_FS_STATE_REMOUNTING, &info->fs_state)) {
 		if (btrfs_raw_test_opt(*mount_opt, SPACE_CACHE)) {
-			btrfs_info(info, "disk space caching is enabled");
 			btrfs_warn(info,
 "space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2");
 		}
-		if (btrfs_raw_test_opt(*mount_opt, FREE_SPACE_TREE))
-			btrfs_info(info, "using free-space-tree");
 	}
 
 	return ret;
@@ -980,6 +980,8 @@ static int btrfs_fill_super(struct super_block *sb,
 		return ret;
 	}
 
+	btrfs_emit_options(fs_info, NULL);
+
 	inode = btrfs_iget(BTRFS_FIRST_FREE_OBJECTID, fs_info->fs_root);
 	if (IS_ERR(inode)) {
 		ret = PTR_ERR(inode);
@@ -1437,7 +1439,7 @@ static void btrfs_emit_options(struct btrfs_fs_info *info,
 {
 	btrfs_info_if_set(info, old, NODATASUM, "setting nodatasum");
 	btrfs_info_if_set(info, old, DEGRADED, "allowing degraded mounts");
-	btrfs_info_if_set(info, old, NODATASUM, "setting nodatasum");
+	btrfs_info_if_set(info, old, NODATACOW, "setting nodatacow");
 	btrfs_info_if_set(info, old, SSD, "enabling ssd optimizations");
 	btrfs_info_if_set(info, old, SSD_SPREAD, "using spread ssd allocation scheme");
 	btrfs_info_if_set(info, old, NOBARRIER, "turning off barriers");
@@ -1459,10 +1461,11 @@ static void btrfs_emit_options(struct btrfs_fs_info *info,
 	btrfs_info_if_set(info, old, IGNOREMETACSUMS, "ignoring meta csums");
 	btrfs_info_if_set(info, old, IGNORESUPERFLAGS, "ignoring unknown super block flags");
 
+	btrfs_info_if_unset(info, old, NODATASUM, "setting datasum");
 	btrfs_info_if_unset(info, old, NODATACOW, "setting datacow");
 	btrfs_info_if_unset(info, old, SSD, "not using ssd optimizations");
 	btrfs_info_if_unset(info, old, SSD_SPREAD, "not using spread ssd allocation scheme");
-	btrfs_info_if_unset(info, old, NOBARRIER, "turning off barriers");
+	btrfs_info_if_unset(info, old, NOBARRIER, "turning on barriers");
 	btrfs_info_if_unset(info, old, NOTREELOG, "enabling tree log");
 	btrfs_info_if_unset(info, old, SPACE_CACHE, "disabling disk space caching");
 	btrfs_info_if_unset(info, old, FREE_SPACE_TREE, "disabling free space tree");
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index db11b5b..ea66203 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -17,6 +17,7 @@
 #include "accessors.h"
 #include "bio.h"
 #include "transaction.h"
+#include "sysfs.h"
 
 /* Maximum number of zones to report per blkdev_report_zones() call */
 #define BTRFS_REPORT_NR_ZONES   4096
@@ -42,6 +43,9 @@
 /* Number of superblock log zones */
 #define BTRFS_NR_SB_LOG_ZONES 2
 
+/* Default number of max active zones when the device has no limits. */
+#define BTRFS_DEFAULT_MAX_ACTIVE_ZONES	128
+
 /*
  * Minimum of active zones we need:
  *
@@ -416,7 +420,10 @@ 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 = bdev_max_active_zones(bdev);
+	max_active_zones = min_not_zero(bdev_max_active_zones(bdev),
+					bdev_max_open_zones(bdev));
+	if (!max_active_zones && zone_info->nr_zones > BTRFS_DEFAULT_MAX_ACTIVE_ZONES)
+		max_active_zones = BTRFS_DEFAULT_MAX_ACTIVE_ZONES;
 	if (max_active_zones && max_active_zones < BTRFS_MIN_ACTIVE_ZONES) {
 		btrfs_err(fs_info,
 "zoned: %s: max active zones %u is too small, need at least %u active zones",
@@ -2168,10 +2175,15 @@ bool btrfs_zone_activate(struct btrfs_block_group *block_group)
 		goto out_unlock;
 	}
 
-	/* No space left */
-	if (btrfs_zoned_bg_is_full(block_group)) {
-		ret = false;
-		goto out_unlock;
+	if (block_group->flags & BTRFS_BLOCK_GROUP_DATA) {
+		/* The caller should check if the block group is full. */
+		if (WARN_ON_ONCE(btrfs_zoned_bg_is_full(block_group))) {
+			ret = false;
+			goto out_unlock;
+		}
+	} else {
+		/* Since it is already written, it should have been active. */
+		WARN_ON_ONCE(block_group->meta_write_pointer != block_group->start);
 	}
 
 	for (i = 0; i < map->num_stripes; i++) {
@@ -2230,7 +2242,7 @@ static void wait_eb_writebacks(struct btrfs_block_group *block_group)
 	struct btrfs_fs_info *fs_info = block_group->fs_info;
 	const u64 end = block_group->start + block_group->length;
 	struct extent_buffer *eb;
-	unsigned long index, start = (block_group->start >> fs_info->sectorsize_bits);
+	unsigned long index, start = (block_group->start >> fs_info->nodesize_bits);
 
 	rcu_read_lock();
 	xa_for_each_start(&fs_info->buffer_tree, index, eb, start) {
@@ -2245,6 +2257,40 @@ static void wait_eb_writebacks(struct btrfs_block_group *block_group)
 	rcu_read_unlock();
 }
 
+static int call_zone_finish(struct btrfs_block_group *block_group,
+			    struct btrfs_io_stripe *stripe)
+{
+	struct btrfs_device *device = stripe->dev;
+	const u64 physical = stripe->physical;
+	struct btrfs_zoned_device_info *zinfo = device->zone_info;
+	int ret;
+
+	if (!device->bdev)
+		return 0;
+
+	if (zinfo->max_active_zones == 0)
+		return 0;
+
+	if (btrfs_dev_is_sequential(device, physical)) {
+		unsigned int nofs_flags;
+
+		nofs_flags = memalloc_nofs_save();
+		ret = blkdev_zone_mgmt(device->bdev, REQ_OP_ZONE_FINISH,
+				       physical >> SECTOR_SHIFT,
+				       zinfo->zone_size >> SECTOR_SHIFT);
+		memalloc_nofs_restore(nofs_flags);
+
+		if (ret)
+			return ret;
+	}
+
+	if (!(block_group->flags & BTRFS_BLOCK_GROUP_DATA))
+		zinfo->reserved_active_zones++;
+	btrfs_dev_clear_active_zone(device, physical);
+
+	return 0;
+}
+
 static int do_zone_finish(struct btrfs_block_group *block_group, bool fully_written)
 {
 	struct btrfs_fs_info *fs_info = block_group->fs_info;
@@ -2329,31 +2375,12 @@ static int do_zone_finish(struct btrfs_block_group *block_group, bool fully_writ
 	down_read(&dev_replace->rwsem);
 	map = block_group->physical_map;
 	for (i = 0; i < map->num_stripes; i++) {
-		struct btrfs_device *device = map->stripes[i].dev;
-		const u64 physical = map->stripes[i].physical;
-		struct btrfs_zoned_device_info *zinfo = device->zone_info;
-		unsigned int nofs_flags;
 
-		if (!device->bdev)
-			continue;
-
-		if (zinfo->max_active_zones == 0)
-			continue;
-
-		nofs_flags = memalloc_nofs_save();
-		ret = blkdev_zone_mgmt(device->bdev, REQ_OP_ZONE_FINISH,
-				       physical >> SECTOR_SHIFT,
-				       zinfo->zone_size >> SECTOR_SHIFT);
-		memalloc_nofs_restore(nofs_flags);
-
+		ret = call_zone_finish(block_group, &map->stripes[i]);
 		if (ret) {
 			up_read(&dev_replace->rwsem);
 			return ret;
 		}
-
-		if (!(block_group->flags & BTRFS_BLOCK_GROUP_DATA))
-			zinfo->reserved_active_zones++;
-		btrfs_dev_clear_active_zone(device, physical);
 	}
 	up_read(&dev_replace->rwsem);
 
@@ -2504,12 +2531,12 @@ void btrfs_clear_data_reloc_bg(struct btrfs_block_group *bg)
 void btrfs_zoned_reserve_data_reloc_bg(struct btrfs_fs_info *fs_info)
 {
 	struct btrfs_space_info *data_sinfo = fs_info->data_sinfo;
-	struct btrfs_space_info *space_info = data_sinfo->sub_group[0];
+	struct btrfs_space_info *space_info = data_sinfo;
 	struct btrfs_trans_handle *trans;
 	struct btrfs_block_group *bg;
 	struct list_head *bg_list;
 	u64 alloc_flags;
-	bool initial = false;
+	bool first = true;
 	bool did_chunk_alloc = false;
 	int index;
 	int ret;
@@ -2523,21 +2550,52 @@ void btrfs_zoned_reserve_data_reloc_bg(struct btrfs_fs_info *fs_info)
 	if (sb_rdonly(fs_info->sb))
 		return;
 
-	ASSERT(space_info->subgroup_id == BTRFS_SUB_GROUP_DATA_RELOC);
 	alloc_flags = btrfs_get_alloc_profile(fs_info, space_info->flags);
 	index = btrfs_bg_flags_to_raid_index(alloc_flags);
 
-	bg_list = &data_sinfo->block_groups[index];
+	/* Scan the data space_info to find empty block groups. Take the second one. */
 again:
+	bg_list = &space_info->block_groups[index];
 	list_for_each_entry(bg, bg_list, list) {
-		if (bg->used > 0)
+		if (bg->alloc_offset != 0)
 			continue;
 
-		if (!initial) {
-			initial = true;
+		if (first) {
+			first = false;
 			continue;
 		}
 
+		if (space_info == data_sinfo) {
+			/* Migrate the block group to the data relocation space_info. */
+			struct btrfs_space_info *reloc_sinfo = data_sinfo->sub_group[0];
+			int factor;
+
+			ASSERT(reloc_sinfo->subgroup_id == BTRFS_SUB_GROUP_DATA_RELOC);
+			factor = btrfs_bg_type_to_factor(bg->flags);
+
+			down_write(&space_info->groups_sem);
+			list_del_init(&bg->list);
+			/* We can assume this as we choose the second empty one. */
+			ASSERT(!list_empty(&space_info->block_groups[index]));
+			up_write(&space_info->groups_sem);
+
+			spin_lock(&space_info->lock);
+			space_info->total_bytes -= bg->length;
+			space_info->disk_total -= bg->length * factor;
+			/* There is no allocation ever happened. */
+			ASSERT(bg->used == 0);
+			ASSERT(bg->zone_unusable == 0);
+			/* No super block in a block group on the zoned setup. */
+			ASSERT(bg->bytes_super == 0);
+			spin_unlock(&space_info->lock);
+
+			bg->space_info = reloc_sinfo;
+			if (reloc_sinfo->block_group_kobjs[index] == NULL)
+				btrfs_sysfs_add_block_group_type(bg);
+
+			btrfs_add_bg_to_space_info(fs_info, bg);
+		}
+
 		fs_info->data_reloc_bg = bg->start;
 		set_bit(BLOCK_GROUP_FLAG_ZONED_DATA_RELOC, &bg->runtime_flags);
 		btrfs_zone_activate(bg);
@@ -2552,11 +2610,18 @@ void btrfs_zoned_reserve_data_reloc_bg(struct btrfs_fs_info *fs_info)
 	if (IS_ERR(trans))
 		return;
 
+	/* Allocate new BG in the data relocation space_info. */
+	space_info = data_sinfo->sub_group[0];
+	ASSERT(space_info->subgroup_id == BTRFS_SUB_GROUP_DATA_RELOC);
 	ret = btrfs_chunk_alloc(trans, space_info, alloc_flags, CHUNK_ALLOC_FORCE);
 	btrfs_end_transaction(trans);
 	if (ret == 1) {
+		/*
+		 * We allocated a new block group in the data relocation space_info. We
+		 * can take that one.
+		 */
+		first = false;
 		did_chunk_alloc = true;
-		bg_list = &space_info->block_groups[index];
 		goto again;
 	}
 }
diff --git a/fs/buffer.c b/fs/buffer.c
index ead4dc8..6a8752f 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -157,8 +157,8 @@ static void __end_buffer_read_notouch(struct buffer_head *bh, int uptodate)
  */
 void end_buffer_read_sync(struct buffer_head *bh, int uptodate)
 {
-	__end_buffer_read_notouch(bh, uptodate);
 	put_bh(bh);
+	__end_buffer_read_notouch(bh, uptodate);
 }
 EXPORT_SYMBOL(end_buffer_read_sync);
 
diff --git a/fs/coredump.c b/fs/coredump.c
index fedbead..5dce257 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -345,7 +345,7 @@ static bool coredump_parse(struct core_name *cn, struct coredump_params *cprm,
 				was_space = false;
 				err = cn_printf(cn, "%c", '\0');
 				if (err)
-					return err;
+					return false;
 				(*argv)[(*argc)++] = cn->used;
 			}
 		}
diff --git a/fs/ext4/fsmap.c b/fs/ext4/fsmap.c
index 383c6ed..91185c4 100644
--- a/fs/ext4/fsmap.c
+++ b/fs/ext4/fsmap.c
@@ -393,6 +393,14 @@ static unsigned int ext4_getfsmap_find_sb(struct super_block *sb,
 	/* Reserved GDT blocks */
 	if (!ext4_has_feature_meta_bg(sb) || metagroup < first_meta_bg) {
 		len = le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks);
+
+		/*
+		 * mkfs.ext4 can set s_reserved_gdt_blocks as 0 in some cases,
+		 * check for that.
+		 */
+		if (!len)
+			return 0;
+
 		error = ext4_getfsmap_fill(meta_list, fsb, len,
 					   EXT4_FMR_OWN_RESV_GDT);
 		if (error)
@@ -526,6 +534,7 @@ static int ext4_getfsmap_datadev(struct super_block *sb,
 	ext4_group_t end_ag;
 	ext4_grpblk_t first_cluster;
 	ext4_grpblk_t last_cluster;
+	struct ext4_fsmap irec;
 	int error = 0;
 
 	bofs = le32_to_cpu(sbi->s_es->s_first_data_block);
@@ -609,10 +618,18 @@ static int ext4_getfsmap_datadev(struct super_block *sb,
 			goto err;
 	}
 
-	/* Report any gaps at the end of the bg */
+	/*
+	 * The dummy record below will cause ext4_getfsmap_helper() to report
+	 * any allocated blocks at the end of the range.
+	 */
+	irec.fmr_device = 0;
+	irec.fmr_physical = end_fsb + 1;
+	irec.fmr_length = 0;
+	irec.fmr_owner = EXT4_FMR_OWN_FREE;
+	irec.fmr_flags = 0;
+
 	info->gfi_last = true;
-	error = ext4_getfsmap_datadev_helper(sb, end_ag, last_cluster + 1,
-					     0, info);
+	error = ext4_getfsmap_helper(sb, info, &irec);
 	if (error)
 		goto err;
 
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 7de327f..d451243 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -539,7 +539,7 @@ int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
 	int indirect_blks;
 	int blocks_to_boundary = 0;
 	int depth;
-	int count = 0;
+	u64 count = 0;
 	ext4_fsblk_t first_block = 0;
 
 	trace_ext4_ind_map_blocks_enter(inode, map->m_lblk, map->m_len, flags);
@@ -588,7 +588,7 @@ int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
 		count++;
 		/* Fill in size of a hole we found */
 		map->m_pblk = 0;
-		map->m_len = min_t(unsigned int, map->m_len, count);
+		map->m_len = umin(map->m_len, count);
 		goto cleanup;
 	}
 
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index ed54c4d..5b7a15d 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -146,7 +146,7 @@ static inline int ext4_begin_ordered_truncate(struct inode *inode,
  */
 int ext4_inode_is_fast_symlink(struct inode *inode)
 {
-	if (!(EXT4_I(inode)->i_flags & EXT4_EA_INODE_FL)) {
+	if (!ext4_has_feature_ea_inode(inode->i_sb)) {
 		int ea_blocks = EXT4_I(inode)->i_file_acl ?
 				EXT4_CLUSTER_SIZE(inode->i_sb) >> 9 : 0;
 
@@ -3155,7 +3155,7 @@ static int ext4_da_write_begin(const struct kiocb *iocb,
 		folio_unlock(folio);
 		folio_put(folio);
 		/*
-		 * block_write_begin may have instantiated a few blocks
+		 * ext4_block_write_begin may have instantiated a few blocks
 		 * outside i_size.  Trim these off again. Don't need
 		 * i_size_read because we hold inode lock.
 		 */
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index d83f91b..2cd36f5 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2965,7 +2965,6 @@ int ext4_init_new_dir(handle_t *handle, struct inode *dir,
 			     struct inode *inode)
 {
 	struct buffer_head *dir_block = NULL;
-	struct ext4_dir_entry_2 *de;
 	ext4_lblk_t block = 0;
 	int err;
 
@@ -2982,10 +2981,7 @@ int ext4_init_new_dir(handle_t *handle, struct inode *dir,
 	dir_block = ext4_append(handle, inode, &block);
 	if (IS_ERR(dir_block))
 		return PTR_ERR(dir_block);
-	de = (struct ext4_dir_entry_2 *)dir_block->b_data;
 	err = ext4_init_dirblock(handle, inode, dir_block, dir->i_ino, NULL, 0);
-	if (err)
-		goto out;
 out:
 	brelse(dir_block);
 	return err;
diff --git a/fs/ext4/orphan.c b/fs/ext4/orphan.c
index 7c7f792..524d465 100644
--- a/fs/ext4/orphan.c
+++ b/fs/ext4/orphan.c
@@ -589,8 +589,9 @@ int ext4_init_orphan_info(struct super_block *sb)
 	}
 	oi->of_blocks = inode->i_size >> sb->s_blocksize_bits;
 	oi->of_csum_seed = EXT4_I(inode)->i_csum_seed;
-	oi->of_binfo = kmalloc(oi->of_blocks*sizeof(struct ext4_orphan_block),
-			       GFP_KERNEL);
+	oi->of_binfo = kmalloc_array(oi->of_blocks,
+				     sizeof(struct ext4_orphan_block),
+				     GFP_KERNEL);
 	if (!oi->of_binfo) {
 		ret = -ENOMEM;
 		goto out_put;
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 3d8b0f6..39abfee 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -547,7 +547,7 @@ int ext4_bio_write_folio(struct ext4_io_submit *io, struct folio *folio,
 		 * first page of the bio.  Otherwise it can deadlock.
 		 */
 		if (io->io_bio)
-			gfp_flags = GFP_NOWAIT | __GFP_NOWARN;
+			gfp_flags = GFP_NOWAIT;
 	retry_encrypt:
 		bounce_page = fscrypt_encrypt_pagecache_blocks(folio,
 					enc_bytes, 0, gfp_flags);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c7d39da..699c15d 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -268,7 +268,7 @@ struct buffer_head *ext4_sb_bread_unmovable(struct super_block *sb,
 void ext4_sb_breadahead_unmovable(struct super_block *sb, sector_t block)
 {
 	struct buffer_head *bh = bdev_getblk(sb->s_bdev, block,
-			sb->s_blocksize, GFP_NOWAIT | __GFP_NOWARN);
+			sb->s_blocksize, GFP_NOWAIT);
 
 	if (likely(bh)) {
 		if (trylock_buffer(bh))
@@ -1998,6 +1998,9 @@ int ext4_init_fs_context(struct fs_context *fc)
 	fc->fs_private = ctx;
 	fc->ops = &ext4_context_ops;
 
+	/* i_version is always enabled now */
+	fc->sb_flags |= SB_I_VERSION;
+
 	return 0;
 }
 
@@ -2975,6 +2978,8 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb,
 		SEQ_OPTS_PRINT("min_batch_time=%u", sbi->s_min_batch_time);
 	if (nodefs || sbi->s_max_batch_time != EXT4_DEF_MAX_BATCH_TIME)
 		SEQ_OPTS_PRINT("max_batch_time=%u", sbi->s_max_batch_time);
+	if (nodefs && sb->s_flags & SB_I_VERSION)
+		SEQ_OPTS_PUTS("i_version");
 	if (nodefs || sbi->s_stripe)
 		SEQ_OPTS_PRINT("stripe=%lu", sbi->s_stripe);
 	if (nodefs || EXT4_MOUNT_DATA_FLAGS &
@@ -5314,9 +5319,6 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
 	sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
 		(test_opt(sb, POSIX_ACL) ? SB_POSIXACL : 0);
 
-	/* i_version is always enabled now */
-	sb->s_flags |= SB_I_VERSION;
-
 	/* HSM events are allowed by default. */
 	sb->s_iflags |= SB_I_ALLOW_HSM;
 
@@ -5414,6 +5416,8 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
 		err = ext4_load_and_init_journal(sb, es, ctx);
 		if (err)
 			goto failed_mount3a;
+		if (bdev_read_only(sb->s_bdev))
+		    needs_recovery = 0;
 	} else if (test_opt(sb, NOLOAD) && !sb_rdonly(sb) &&
 		   ext4_has_feature_journal_needs_recovery(sb)) {
 		ext4_msg(sb, KERN_ERR, "required journal recovery "
diff --git a/fs/fhandle.c b/fs/fhandle.c
index 7c236f6..68a7d28 100644
--- a/fs/fhandle.c
+++ b/fs/fhandle.c
@@ -402,7 +402,7 @@ static long do_handle_open(int mountdirfd, struct file_handle __user *ufh,
 	if (retval)
 		return retval;
 
-	CLASS(get_unused_fd, fd)(O_CLOEXEC);
+	CLASS(get_unused_fd, fd)(open_flag);
 	if (fd < 0)
 		return fd;
 
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index cc57367..a07b8cf 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2608,10 +2608,6 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 			wakeup_bdi = inode_io_list_move_locked(inode, wb,
 							       dirty_list);
 
-			spin_unlock(&wb->list_lock);
-			spin_unlock(&inode->i_lock);
-			trace_writeback_dirty_inode_enqueue(inode);
-
 			/*
 			 * If this is the first dirty inode for this bdi,
 			 * we have to wake-up the corresponding bdi thread
@@ -2621,6 +2617,11 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 			if (wakeup_bdi &&
 			    (wb->bdi->capabilities & BDI_CAP_WRITEBACK))
 				wb_wakeup_delayed(wb);
+
+			spin_unlock(&wb->list_lock);
+			spin_unlock(&inode->i_lock);
+			trace_writeback_dirty_inode_enqueue(inode);
+
 			return;
 		}
 	}
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index ecb869e..67c2318 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -289,11 +289,6 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
 		}
 	}
 
-	if (attr->blksize != 0)
-		inode->i_blkbits = ilog2(attr->blksize);
-	else
-		inode->i_blkbits = inode->i_sb->s_blocksize_bits;
-
 	/*
 	 * Don't set the sticky bit in i_mode, unless we want the VFS
 	 * to check permissions.  This prevents failures due to the
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 6f25d4c..b84f6af2 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -363,14 +363,14 @@ static int iomap_dio_bio_iter(struct iomap_iter *iter, struct iomap_dio *dio)
 		if (iomap->flags & IOMAP_F_SHARED)
 			dio->flags |= IOMAP_DIO_COW;
 
-		if (iomap->flags & IOMAP_F_NEW) {
+		if (iomap->flags & IOMAP_F_NEW)
 			need_zeroout = true;
-		} else if (iomap->type == IOMAP_MAPPED) {
-			if (iomap_dio_can_use_fua(iomap, dio))
-				bio_opf |= REQ_FUA;
-			else
-				dio->flags &= ~IOMAP_DIO_WRITE_THROUGH;
-		}
+		else if (iomap->type == IOMAP_MAPPED &&
+			 iomap_dio_can_use_fua(iomap, dio))
+			bio_opf |= REQ_FUA;
+
+		if (!(bio_opf & REQ_FUA))
+			dio->flags &= ~IOMAP_DIO_WRITE_THROUGH;
 
 		/*
 		 * We can only do deferred completion for pure overwrites that
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index b3971e91..38861ca 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -285,6 +285,7 @@ int jbd2_log_do_checkpoint(journal_t *journal)
 		retry:
 			if (batch_count)
 				__flush_batch(journal, &batch_count);
+			cond_resched();
 			spin_lock(&journal->j_list_lock);
 			goto restart;
 	}
diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c
index 3c293a5..457f91c 100644
--- a/fs/kernfs/inode.c
+++ b/fs/kernfs/inode.c
@@ -142,9 +142,9 @@ ssize_t kernfs_iop_listxattr(struct dentry *dentry, char *buf, size_t size)
 	struct kernfs_node *kn = kernfs_dentry_node(dentry);
 	struct kernfs_iattrs *attrs;
 
-	attrs = kernfs_iattrs_noalloc(kn);
+	attrs = kernfs_iattrs(kn);
 	if (!attrs)
-		return -ENODATA;
+		return -ENOMEM;
 
 	return simple_xattr_list(d_inode(dentry), &attrs->xattrs, buf, size);
 }
diff --git a/fs/namespace.c b/fs/namespace.c
index ddfd445..ae6d131 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1197,10 +1197,7 @@ static void commit_tree(struct mount *mnt)
 
 	if (!mnt_ns_attached(mnt)) {
 		for (struct mount *m = mnt; m; m = next_mnt(m, mnt))
-			if (unlikely(mnt_ns_attached(m)))
-				m = skip_mnt_tree(m);
-			else
-				mnt_add_to_ns(n, m);
+			mnt_add_to_ns(n, m);
 		n->nr_mounts += n->pending_mounts;
 		n->pending_mounts = 0;
 	}
@@ -2704,6 +2701,7 @@ static int attach_recursive_mnt(struct mount *source_mnt,
 			lock_mnt_tree(child);
 		q = __lookup_mnt(&child->mnt_parent->mnt,
 				 child->mnt_mountpoint);
+		commit_tree(child);
 		if (q) {
 			struct mountpoint *mp = root.mp;
 			struct mount *r = child;
@@ -2713,7 +2711,6 @@ static int attach_recursive_mnt(struct mount *source_mnt,
 				mp = shorter;
 			mnt_change_mountpoint(r, mp, q);
 		}
-		commit_tree(child);
 	}
 	unpin_mountpoint(&root);
 	unlock_mount_hash();
@@ -2862,6 +2859,19 @@ static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)
 	return attach_recursive_mnt(mnt, p, mp);
 }
 
+static int may_change_propagation(const struct mount *m)
+{
+        struct mnt_namespace *ns = m->mnt_ns;
+
+	 // it must be mounted in some namespace
+	 if (IS_ERR_OR_NULL(ns))         // is_mounted()
+		 return -EINVAL;
+	 // and the caller must be admin in userns of that namespace
+	 if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
+		 return -EPERM;
+	 return 0;
+}
+
 /*
  * Sanity check the flags to change_mnt_propagation.
  */
@@ -2898,10 +2908,10 @@ static int do_change_type(struct path *path, int ms_flags)
 		return -EINVAL;
 
 	namespace_lock();
-	if (!check_mnt(mnt)) {
-		err = -EINVAL;
+	err = may_change_propagation(mnt);
+	if (err)
 		goto out_unlock;
-	}
+
 	if (type == MS_SHARED) {
 		err = invent_group_ids(mnt, recurse);
 		if (err)
@@ -3347,18 +3357,11 @@ static int do_set_group(struct path *from_path, struct path *to_path)
 
 	namespace_lock();
 
-	err = -EINVAL;
-	/* To and From must be mounted */
-	if (!is_mounted(&from->mnt))
+	err = may_change_propagation(from);
+	if (err)
 		goto out;
-	if (!is_mounted(&to->mnt))
-		goto out;
-
-	err = -EPERM;
-	/* We should be allowed to modify mount namespaces of both mounts */
-	if (!ns_capable(from->mnt_ns->user_ns, CAP_SYS_ADMIN))
-		goto out;
-	if (!ns_capable(to->mnt_ns->user_ns, CAP_SYS_ADMIN))
+	err = may_change_propagation(to);
+	if (err)
 		goto out;
 
 	err = -EINVAL;
@@ -4551,20 +4554,10 @@ SYSCALL_DEFINE5(move_mount,
 	if (flags & MOVE_MOUNT_SET_GROUP)	mflags |= MNT_TREE_PROPAGATION;
 	if (flags & MOVE_MOUNT_BENEATH)		mflags |= MNT_TREE_BENEATH;
 
-	lflags = 0;
-	if (flags & MOVE_MOUNT_F_SYMLINKS)	lflags |= LOOKUP_FOLLOW;
-	if (flags & MOVE_MOUNT_F_AUTOMOUNTS)	lflags |= LOOKUP_AUTOMOUNT;
 	uflags = 0;
-	if (flags & MOVE_MOUNT_F_EMPTY_PATH)	uflags = AT_EMPTY_PATH;
-	from_name = getname_maybe_null(from_pathname, uflags);
-	if (IS_ERR(from_name))
-		return PTR_ERR(from_name);
+	if (flags & MOVE_MOUNT_T_EMPTY_PATH)
+		uflags = AT_EMPTY_PATH;
 
-	lflags = 0;
-	if (flags & MOVE_MOUNT_T_SYMLINKS)	lflags |= LOOKUP_FOLLOW;
-	if (flags & MOVE_MOUNT_T_AUTOMOUNTS)	lflags |= LOOKUP_AUTOMOUNT;
-	uflags = 0;
-	if (flags & MOVE_MOUNT_T_EMPTY_PATH)	uflags = AT_EMPTY_PATH;
 	to_name = getname_maybe_null(to_pathname, uflags);
 	if (IS_ERR(to_name))
 		return PTR_ERR(to_name);
@@ -4577,11 +4570,24 @@ SYSCALL_DEFINE5(move_mount,
 		to_path = fd_file(f_to)->f_path;
 		path_get(&to_path);
 	} else {
+		lflags = 0;
+		if (flags & MOVE_MOUNT_T_SYMLINKS)
+			lflags |= LOOKUP_FOLLOW;
+		if (flags & MOVE_MOUNT_T_AUTOMOUNTS)
+			lflags |= LOOKUP_AUTOMOUNT;
 		ret = filename_lookup(to_dfd, to_name, lflags, &to_path, NULL);
 		if (ret)
 			return ret;
 	}
 
+	uflags = 0;
+	if (flags & MOVE_MOUNT_F_EMPTY_PATH)
+		uflags = AT_EMPTY_PATH;
+
+	from_name = getname_maybe_null(from_pathname, uflags);
+	if (IS_ERR(from_name))
+		return PTR_ERR(from_name);
+
 	if (!from_name && from_dfd >= 0) {
 		CLASS(fd_raw, f_from)(from_dfd);
 		if (fd_empty(f_from))
@@ -4590,6 +4596,11 @@ SYSCALL_DEFINE5(move_mount,
 		return vfs_move_mount(&fd_file(f_from)->f_path, &to_path, mflags);
 	}
 
+	lflags = 0;
+	if (flags & MOVE_MOUNT_F_SYMLINKS)
+		lflags |= LOOKUP_FOLLOW;
+	if (flags & MOVE_MOUNT_F_AUTOMOUNTS)
+		lflags |= LOOKUP_AUTOMOUNT;
 	ret = filename_lookup(from_dfd, from_name, lflags, &from_path, NULL);
 	if (ret)
 		return ret;
@@ -5176,7 +5187,8 @@ SYSCALL_DEFINE5(open_tree_attr, int, dfd, const char __user *, filename,
 		int ret;
 		struct mount_kattr kattr = {};
 
-		kattr.kflags = MOUNT_KATTR_IDMAP_REPLACE;
+		if (flags & OPEN_TREE_CLONE)
+			kattr.kflags = MOUNT_KATTR_IDMAP_REPLACE;
 		if (flags & AT_RECURSIVE)
 			kattr.kflags |= MOUNT_KATTR_RECURSE;
 
diff --git a/fs/netfs/read_collect.c b/fs/netfs/read_collect.c
index 3e804da..a95e7aa 100644
--- a/fs/netfs/read_collect.c
+++ b/fs/netfs/read_collect.c
@@ -281,8 +281,10 @@ static void netfs_collect_read_results(struct netfs_io_request *rreq)
 		} else if (test_bit(NETFS_RREQ_SHORT_TRANSFER, &rreq->flags)) {
 			notes |= MADE_PROGRESS;
 		} else {
-			if (!stream->failed)
+			if (!stream->failed) {
 				stream->transferred += transferred;
+				stream->transferred_valid = true;
+			}
 			if (front->transferred < front->len)
 				set_bit(NETFS_RREQ_SHORT_TRANSFER, &rreq->flags);
 			notes |= MADE_PROGRESS;
diff --git a/fs/netfs/write_collect.c b/fs/netfs/write_collect.c
index 0f3a368..cbf3d91 100644
--- a/fs/netfs/write_collect.c
+++ b/fs/netfs/write_collect.c
@@ -254,6 +254,7 @@ static void netfs_collect_write_results(struct netfs_io_request *wreq)
 			if (front->start + front->transferred > stream->collected_to) {
 				stream->collected_to = front->start + front->transferred;
 				stream->transferred = stream->collected_to - wreq->start;
+				stream->transferred_valid = true;
 				notes |= MADE_PROGRESS;
 			}
 			if (test_bit(NETFS_SREQ_FAILED, &front->flags)) {
@@ -356,6 +357,7 @@ bool netfs_write_collection(struct netfs_io_request *wreq)
 {
 	struct netfs_inode *ictx = netfs_inode(wreq->inode);
 	size_t transferred;
+	bool transferred_valid = false;
 	int s;
 
 	_enter("R=%x", wreq->debug_id);
@@ -376,12 +378,16 @@ bool netfs_write_collection(struct netfs_io_request *wreq)
 			continue;
 		if (!list_empty(&stream->subrequests))
 			return false;
-		if (stream->transferred < transferred)
+		if (stream->transferred_valid &&
+		    stream->transferred < transferred) {
 			transferred = stream->transferred;
+			transferred_valid = true;
+		}
 	}
 
 	/* Okay, declare that all I/O is complete. */
-	wreq->transferred = transferred;
+	if (transferred_valid)
+		wreq->transferred = transferred;
 	trace_netfs_rreq(wreq, netfs_rreq_trace_write_done);
 
 	if (wreq->io_streams[1].active &&
diff --git a/fs/netfs/write_issue.c b/fs/netfs/write_issue.c
index 50bee2c..0584cba 100644
--- a/fs/netfs/write_issue.c
+++ b/fs/netfs/write_issue.c
@@ -118,12 +118,12 @@ struct netfs_io_request *netfs_create_write_req(struct address_space *mapping,
 	wreq->io_streams[0].prepare_write	= ictx->ops->prepare_write;
 	wreq->io_streams[0].issue_write		= ictx->ops->issue_write;
 	wreq->io_streams[0].collected_to	= start;
-	wreq->io_streams[0].transferred		= LONG_MAX;
+	wreq->io_streams[0].transferred		= 0;
 
 	wreq->io_streams[1].stream_nr		= 1;
 	wreq->io_streams[1].source		= NETFS_WRITE_TO_CACHE;
 	wreq->io_streams[1].collected_to	= start;
-	wreq->io_streams[1].transferred		= LONG_MAX;
+	wreq->io_streams[1].transferred		= 0;
 	if (fscache_resources_valid(&wreq->cache_resources)) {
 		wreq->io_streams[1].avail	= true;
 		wreq->io_streams[1].active	= true;
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 70b8687..dbd63a7 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -225,7 +225,7 @@ struct dentry *ovl_create_temp(struct ovl_fs *ofs, struct dentry *workdir,
 			       struct ovl_cattr *attr)
 {
 	struct dentry *ret;
-	inode_lock(workdir->d_inode);
+	inode_lock_nested(workdir->d_inode, I_MUTEX_PARENT);
 	ret = ovl_create_real(ofs, workdir,
 			      ovl_lookup_temp(ofs, workdir), attr);
 	inode_unlock(workdir->d_inode);
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index a33115e..41033ba 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -1552,7 +1552,8 @@ void ovl_copyattr(struct inode *inode)
 int ovl_parent_lock(struct dentry *parent, struct dentry *child)
 {
 	inode_lock_nested(parent->d_inode, I_MUTEX_PARENT);
-	if (!child || child->d_parent == parent)
+	if (!child ||
+	    (!d_unhashed(child) && child->d_parent == parent))
 		return 0;
 
 	inode_unlock(parent->d_inode);
diff --git a/fs/pidfs.c b/fs/pidfs.c
index edc3552..108e7527 100644
--- a/fs/pidfs.c
+++ b/fs/pidfs.c
@@ -296,12 +296,12 @@ static __u32 pidfs_coredump_mask(unsigned long mm_flags)
 static long pidfd_info(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct pidfd_info __user *uinfo = (struct pidfd_info __user *)arg;
+	struct task_struct *task __free(put_task) = NULL;
 	struct pid *pid = pidfd_pid(file);
 	size_t usize = _IOC_SIZE(cmd);
 	struct pidfd_info kinfo = {};
 	struct pidfs_exit_info *exit_info;
 	struct user_namespace *user_ns;
-	struct task_struct *task;
 	struct pidfs_attr *attr;
 	const struct cred *c;
 	__u64 mask;
diff --git a/fs/pnode.c b/fs/pnode.c
index 81f7599b..6f7d02f 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -111,7 +111,8 @@ void change_mnt_propagation(struct mount *mnt, int type)
 		return;
 	}
 	if (IS_MNT_SHARED(mnt)) {
-		m = propagation_source(mnt);
+		if (type == MS_SLAVE || !hlist_empty(&mnt->mnt_slave_list))
+			m = propagation_source(mnt);
 		if (list_empty(&mnt->mnt_share)) {
 			mnt_release_group_id(mnt);
 		} else {
@@ -637,10 +638,11 @@ void propagate_umount(struct list_head *set)
 	}
 
 	// now to_umount consists of all acceptable candidates
-	// deal with reparenting of remaining overmounts on those
+	// deal with reparenting of surviving overmounts on those
 	list_for_each_entry(m, &to_umount, mnt_list) {
-		if (m->overmount)
-			reparent(m->overmount);
+		struct mount *over = m->overmount;
+		if (over && !will_be_unmounted(over))
+			reparent(over);
 	}
 
 	// and fold them into the set
diff --git a/fs/smb/server/connection.c b/fs/smb/server/connection.c
index 3f04a29..67c4f73 100644
--- a/fs/smb/server/connection.c
+++ b/fs/smb/server/connection.c
@@ -504,7 +504,8 @@ void ksmbd_conn_transport_destroy(void)
 {
 	mutex_lock(&init_lock);
 	ksmbd_tcp_destroy();
-	ksmbd_rdma_destroy();
+	ksmbd_rdma_stop_listening();
 	stop_sessions();
+	ksmbd_rdma_destroy();
 	mutex_unlock(&init_lock);
 }
diff --git a/fs/smb/server/connection.h b/fs/smb/server/connection.h
index 31dd1caa..2aa8084 100644
--- a/fs/smb/server/connection.h
+++ b/fs/smb/server/connection.h
@@ -46,7 +46,12 @@ struct ksmbd_conn {
 	struct mutex			srv_mutex;
 	int				status;
 	unsigned int			cli_cap;
-	__be32				inet_addr;
+	union {
+		__be32			inet_addr;
+#if IS_ENABLED(CONFIG_IPV6)
+		u8			inet6_addr[16];
+#endif
+	};
 	char				*request_buf;
 	struct ksmbd_transport		*transport;
 	struct nls_table		*local_nls;
diff --git a/fs/smb/server/oplock.c b/fs/smb/server/oplock.c
index d7a8a580..a04d570 100644
--- a/fs/smb/server/oplock.c
+++ b/fs/smb/server/oplock.c
@@ -1102,8 +1102,10 @@ void smb_send_parent_lease_break_noti(struct ksmbd_file *fp,
 			if (!atomic_inc_not_zero(&opinfo->refcount))
 				continue;
 
-			if (ksmbd_conn_releasing(opinfo->conn))
+			if (ksmbd_conn_releasing(opinfo->conn)) {
+				opinfo_put(opinfo);
 				continue;
+			}
 
 			oplock_break(opinfo, SMB2_OPLOCK_LEVEL_NONE, NULL);
 			opinfo_put(opinfo);
@@ -1139,8 +1141,11 @@ void smb_lazy_parent_lease_break_close(struct ksmbd_file *fp)
 			if (!atomic_inc_not_zero(&opinfo->refcount))
 				continue;
 
-			if (ksmbd_conn_releasing(opinfo->conn))
+			if (ksmbd_conn_releasing(opinfo->conn)) {
+				opinfo_put(opinfo);
 				continue;
+			}
+
 			oplock_break(opinfo, SMB2_OPLOCK_LEVEL_NONE, NULL);
 			opinfo_put(opinfo);
 		}
@@ -1343,8 +1348,10 @@ void smb_break_all_levII_oplock(struct ksmbd_work *work, struct ksmbd_file *fp,
 		if (!atomic_inc_not_zero(&brk_op->refcount))
 			continue;
 
-		if (ksmbd_conn_releasing(brk_op->conn))
+		if (ksmbd_conn_releasing(brk_op->conn)) {
+			opinfo_put(brk_op);
 			continue;
+		}
 
 		if (brk_op->is_lease && (brk_op->o_lease->state &
 		    (~(SMB2_LEASE_READ_CACHING_LE |
diff --git a/fs/smb/server/transport_rdma.c b/fs/smb/server/transport_rdma.c
index 8d366db..5466aa8 100644
--- a/fs/smb/server/transport_rdma.c
+++ b/fs/smb/server/transport_rdma.c
@@ -2194,7 +2194,7 @@ int ksmbd_rdma_init(void)
 	return 0;
 }
 
-void ksmbd_rdma_destroy(void)
+void ksmbd_rdma_stop_listening(void)
 {
 	if (!smb_direct_listener.cm_id)
 		return;
@@ -2203,7 +2203,10 @@ void ksmbd_rdma_destroy(void)
 	rdma_destroy_id(smb_direct_listener.cm_id);
 
 	smb_direct_listener.cm_id = NULL;
+}
 
+void ksmbd_rdma_destroy(void)
+{
 	if (smb_direct_wq) {
 		destroy_workqueue(smb_direct_wq);
 		smb_direct_wq = NULL;
diff --git a/fs/smb/server/transport_rdma.h b/fs/smb/server/transport_rdma.h
index 77aee4e..a2291b7 100644
--- a/fs/smb/server/transport_rdma.h
+++ b/fs/smb/server/transport_rdma.h
@@ -54,13 +54,15 @@ struct smb_direct_data_transfer {
 
 #ifdef CONFIG_SMB_SERVER_SMBDIRECT
 int ksmbd_rdma_init(void);
+void ksmbd_rdma_stop_listening(void);
 void ksmbd_rdma_destroy(void);
 bool ksmbd_rdma_capable_netdev(struct net_device *netdev);
 void init_smbd_max_io_size(unsigned int sz);
 unsigned int get_smbd_max_read_write_size(void);
 #else
 static inline int ksmbd_rdma_init(void) { return 0; }
-static inline int ksmbd_rdma_destroy(void) { return 0; }
+static inline void ksmbd_rdma_stop_listening(void) { }
+static inline void ksmbd_rdma_destroy(void) { }
 static inline bool ksmbd_rdma_capable_netdev(struct net_device *netdev) { return false; }
 static inline void init_smbd_max_io_size(unsigned int sz) { }
 static inline unsigned int get_smbd_max_read_write_size(void) { return 0; }
diff --git a/fs/smb/server/transport_tcp.c b/fs/smb/server/transport_tcp.c
index b1df02e..4337df9 100644
--- a/fs/smb/server/transport_tcp.c
+++ b/fs/smb/server/transport_tcp.c
@@ -85,7 +85,14 @@ static struct tcp_transport *alloc_transport(struct socket *client_sk)
 		return NULL;
 	}
 
+#if IS_ENABLED(CONFIG_IPV6)
+	if (client_sk->sk->sk_family == AF_INET6)
+		memcpy(&conn->inet6_addr, &client_sk->sk->sk_v6_daddr, 16);
+	else
+		conn->inet_addr = inet_sk(client_sk->sk)->inet_daddr;
+#else
 	conn->inet_addr = inet_sk(client_sk->sk)->inet_daddr;
+#endif
 	conn->transport = KSMBD_TRANS(t);
 	KSMBD_TRANS(t)->conn = conn;
 	KSMBD_TRANS(t)->ops = &ksmbd_tcp_transport_ops;
@@ -229,7 +236,6 @@ static int ksmbd_kthread_fn(void *p)
 {
 	struct socket *client_sk = NULL;
 	struct interface *iface = (struct interface *)p;
-	struct inet_sock *csk_inet;
 	struct ksmbd_conn *conn;
 	int ret;
 
@@ -252,13 +258,27 @@ static int ksmbd_kthread_fn(void *p)
 		/*
 		 * Limits repeated connections from clients with the same IP.
 		 */
-		csk_inet = inet_sk(client_sk->sk);
 		down_read(&conn_list_lock);
 		list_for_each_entry(conn, &conn_list, conns_list)
-			if (csk_inet->inet_daddr == conn->inet_addr) {
+#if IS_ENABLED(CONFIG_IPV6)
+			if (client_sk->sk->sk_family == AF_INET6) {
+				if (memcmp(&client_sk->sk->sk_v6_daddr,
+					   &conn->inet6_addr, 16) == 0) {
+					ret = -EAGAIN;
+					break;
+				}
+			} else if (inet_sk(client_sk->sk)->inet_daddr ==
+				 conn->inet_addr) {
 				ret = -EAGAIN;
 				break;
 			}
+#else
+			if (inet_sk(client_sk->sk)->inet_daddr ==
+			    conn->inet_addr) {
+				ret = -EAGAIN;
+				break;
+			}
+#endif
 		up_read(&conn_list_lock);
 		if (ret == -EAGAIN)
 			continue;
diff --git a/fs/splice.c b/fs/splice.c
index 4d6df08..f5094b6 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -739,6 +739,9 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
 		sd.pos = kiocb.ki_pos;
 		if (ret <= 0)
 			break;
+		WARN_ONCE(ret > sd.total_len - left,
+			  "Splice Exceeded! ret=%zd tot=%zu left=%zu\n",
+			  ret, sd.total_len, left);
 
 		sd.num_spliced += ret;
 		sd.total_len -= ret;
diff --git a/include/linux/export.h b/include/linux/export.h
index f35d03b..a686fd0 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -91,6 +91,6 @@
 #define EXPORT_SYMBOL_NS(sym, ns)	__EXPORT_SYMBOL(sym, "", ns)
 #define EXPORT_SYMBOL_NS_GPL(sym, ns)	__EXPORT_SYMBOL(sym, "GPL", ns)
 
-#define EXPORT_SYMBOL_GPL_FOR_MODULES(sym, mods) __EXPORT_SYMBOL(sym, "GPL", "module:" mods)
+#define EXPORT_SYMBOL_FOR_MODULES(sym, mods) __EXPORT_SYMBOL(sym, "GPL", "module:" mods)
 
 #endif /* _LINUX_EXPORT_H */
diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index 185bd81..98c96d6 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -150,6 +150,7 @@ struct netfs_io_stream {
 	bool			active;		/* T if stream is active */
 	bool			need_retry;	/* T if this stream needs retrying */
 	bool			failed;		/* T if this stream failed */
+	bool			transferred_valid; /* T is ->transferred is valid */
 };
 
 /*
diff --git a/kernel/signal.c b/kernel/signal.c
index e2c928d..fe9190d 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -4067,6 +4067,7 @@ SYSCALL_DEFINE4(pidfd_send_signal, int, pidfd, int, sig,
 {
 	struct pid *pid;
 	enum pid_type type;
+	int ret;
 
 	/* Enforce flags be set to 0 until we add an extension. */
 	if (flags & ~PIDFD_SEND_SIGNAL_FLAGS)
@@ -4108,7 +4109,10 @@ SYSCALL_DEFINE4(pidfd_send_signal, int, pidfd, int, sig,
 	}
 	}
 
-	return do_pidfd_send_signal(pid, sig, type, info, flags);
+	ret = do_pidfd_send_signal(pid, sig, type, info, flags);
+	put_pid(pid);
+
+	return ret;
 }
 
 static int
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 1dbf1d3..5a66888 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -2204,7 +2204,7 @@ static inline bool is_good_system_name(const char *name)
 static inline void sanitize_event_name(char *name)
 {
 	while (*name++ != '\0')
-		if (*name == ':' || *name == '.')
+		if (*name == ':' || *name == '.' || *name == '*')
 			*name = '_';
 }
 
diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index c2b65b6..1e6b008 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -140,8 +140,8 @@
 config CRYPTO_LIB_SHA1
 	tristate
 	help
-	  The SHA-1 library functions.  Select this if your module uses any of
-	  the functions from <crypto/sha1.h>.
+	  The SHA-1 and HMAC-SHA1 library functions.  Select this if your module
+	  uses any of the functions from <crypto/sha1.h>.
 
 config CRYPTO_LIB_SHA1_ARCH
 	bool
@@ -157,9 +157,9 @@
 config CRYPTO_LIB_SHA256
 	tristate
 	help
-	  Enable the SHA-256 library interface. This interface may be fulfilled
-	  by either the generic implementation or an arch-specific one, if one
-	  is available and enabled.
+	  The SHA-224, SHA-256, HMAC-SHA224, and HMAC-SHA256 library functions.
+	  Select this if your module uses any of these functions from
+	  <crypto/sha2.h>.
 
 config CRYPTO_LIB_SHA256_ARCH
 	bool
diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile
index e4151be..539d5d5 100644
--- a/lib/crypto/Makefile
+++ b/lib/crypto/Makefile
@@ -100,7 +100,6 @@
 libsha256-y += arm/sha256-ce.o arm/sha256-core.o
 $(obj)/arm/sha256-core.S: $(src)/arm/sha256-armv4.pl
 	$(call cmd,perlasm)
-clean-files += arm/sha256-core.S
 AFLAGS_arm/sha256-core.o += $(aflags-thumb2-y)
 endif
 
@@ -108,7 +107,6 @@
 libsha256-y += arm64/sha256-core.o
 $(obj)/arm64/sha256-core.S: $(src)/arm64/sha2-armv8.pl
 	$(call cmd,perlasm_with_args)
-clean-files += arm64/sha256-core.S
 libsha256-$(CONFIG_KERNEL_MODE_NEON) += arm64/sha256-ce.o
 endif
 
@@ -132,7 +130,6 @@
 libsha512-y += arm/sha512-core.o
 $(obj)/arm/sha512-core.S: $(src)/arm/sha512-armv4.pl
 	$(call cmd,perlasm)
-clean-files += arm/sha512-core.S
 AFLAGS_arm/sha512-core.o += $(aflags-thumb2-y)
 endif
 
@@ -140,7 +137,6 @@
 libsha512-y += arm64/sha512-core.o
 $(obj)/arm64/sha512-core.S: $(src)/arm64/sha2-armv8.pl
 	$(call cmd,perlasm_with_args)
-clean-files += arm64/sha512-core.S
 libsha512-$(CONFIG_KERNEL_MODE_NEON) += arm64/sha512-ce-core.o
 endif
 
@@ -167,3 +163,7 @@
 obj-$(CONFIG_RISCV) += riscv/
 obj-$(CONFIG_S390) += s390/
 obj-$(CONFIG_X86) += x86/
+
+# clean-files must be defined unconditionally
+clean-files += arm/sha256-core.S arm/sha512-core.S
+clean-files += arm64/sha256-core.S arm64/sha512-core.S
diff --git a/tools/bootconfig/main.c b/tools/bootconfig/main.c
index 57c669d..55d59ed 100644
--- a/tools/bootconfig/main.c
+++ b/tools/bootconfig/main.c
@@ -193,7 +193,7 @@ static int load_xbc_from_initrd(int fd, char **buf)
 	if (stat.st_size < BOOTCONFIG_FOOTER_SIZE)
 		return 0;
 
-	if (lseek(fd, -BOOTCONFIG_MAGIC_LEN, SEEK_END) < 0)
+	if (lseek(fd, -(off_t)BOOTCONFIG_MAGIC_LEN, SEEK_END) < 0)
 		return pr_errno("Failed to lseek for magic", -errno);
 
 	if (read(fd, magic, BOOTCONFIG_MAGIC_LEN) < 0)
@@ -203,7 +203,7 @@ static int load_xbc_from_initrd(int fd, char **buf)
 	if (memcmp(magic, BOOTCONFIG_MAGIC, BOOTCONFIG_MAGIC_LEN) != 0)
 		return 0;
 
-	if (lseek(fd, -BOOTCONFIG_FOOTER_SIZE, SEEK_END) < 0)
+	if (lseek(fd, -(off_t)BOOTCONFIG_FOOTER_SIZE, SEEK_END) < 0)
 		return pr_errno("Failed to lseek for size", -errno);
 
 	if (read(fd, &size, sizeof(uint32_t)) < 0)
diff --git a/tools/testing/selftests/coredump/stackdump_test.c b/tools/testing/selftests/coredump/stackdump_test.c
index 5a5a7a5..a4ac80b 100644
--- a/tools/testing/selftests/coredump/stackdump_test.c
+++ b/tools/testing/selftests/coredump/stackdump_test.c
@@ -446,9 +446,6 @@ TEST_F(coredump, socket_detect_userspace_client)
 		if (info.coredump_mask & PIDFD_COREDUMPED)
 			goto out;
 
-		if (read(fd_coredump, &c, 1) < 1)
-			goto out;
-
 		exit_code = EXIT_SUCCESS;
 out:
 		if (fd_peer_pidfd >= 0)
diff --git a/tools/testing/selftests/mount_setattr/mount_setattr_test.c b/tools/testing/selftests/mount_setattr/mount_setattr_test.c
index b1e4618..a688871 100644
--- a/tools/testing/selftests/mount_setattr/mount_setattr_test.c
+++ b/tools/testing/selftests/mount_setattr/mount_setattr_test.c
@@ -107,6 +107,26 @@
 	#endif
 #endif
 
+#ifndef __NR_open_tree_attr
+	#if defined __alpha__
+		#define __NR_open_tree_attr 577
+	#elif defined _MIPS_SIM
+		#if _MIPS_SIM == _MIPS_SIM_ABI32	/* o32 */
+			#define __NR_open_tree_attr (467 + 4000)
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_NABI32	/* n32 */
+			#define __NR_open_tree_attr (467 + 6000)
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_ABI64	/* n64 */
+			#define __NR_open_tree_attr (467 + 5000)
+		#endif
+	#elif defined __ia64__
+		#define __NR_open_tree_attr (467 + 1024)
+	#else
+		#define __NR_open_tree_attr 467
+	#endif
+#endif
+
 #ifndef MOUNT_ATTR_IDMAP
 #define MOUNT_ATTR_IDMAP 0x00100000
 #endif
@@ -121,6 +141,12 @@ static inline int sys_mount_setattr(int dfd, const char *path, unsigned int flag
 	return syscall(__NR_mount_setattr, dfd, path, flags, attr, size);
 }
 
+static inline int sys_open_tree_attr(int dfd, const char *path, unsigned int flags,
+				     struct mount_attr *attr, size_t size)
+{
+	return syscall(__NR_open_tree_attr, dfd, path, flags, attr, size);
+}
+
 static ssize_t write_nointr(int fd, const void *buf, size_t count)
 {
 	ssize_t ret;
@@ -1222,6 +1248,12 @@ TEST_F(mount_setattr_idmapped, attached_mount_inside_current_mount_namespace)
 	attr.userns_fd	= get_userns_fd(0, 10000, 10000);
 	ASSERT_GE(attr.userns_fd, 0);
 	ASSERT_NE(sys_mount_setattr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	/*
+	 * Make sure that open_tree_attr() without OPEN_TREE_CLONE is not a way
+	 * to bypass this mount_setattr() restriction.
+	 */
+	ASSERT_LT(sys_open_tree_attr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+
 	ASSERT_EQ(close(attr.userns_fd), 0);
 	ASSERT_EQ(close(open_tree_fd), 0);
 }
@@ -1255,6 +1287,12 @@ TEST_F(mount_setattr_idmapped, attached_mount_outside_current_mount_namespace)
 	ASSERT_GE(attr.userns_fd, 0);
 	ASSERT_NE(sys_mount_setattr(open_tree_fd, "", AT_EMPTY_PATH, &attr,
 				    sizeof(attr)), 0);
+	/*
+	 * Make sure that open_tree_attr() without OPEN_TREE_CLONE is not a way
+	 * to bypass this mount_setattr() restriction.
+	 */
+	ASSERT_LT(sys_open_tree_attr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+
 	ASSERT_EQ(close(attr.userns_fd), 0);
 	ASSERT_EQ(close(open_tree_fd), 0);
 }
@@ -1321,6 +1359,19 @@ TEST_F(mount_setattr_idmapped, detached_mount_outside_current_mount_namespace)
 	ASSERT_EQ(close(open_tree_fd), 0);
 }
 
+static bool expected_uid_gid(int dfd, const char *path, int flags,
+			     uid_t expected_uid, gid_t expected_gid)
+{
+	int ret;
+	struct stat st;
+
+	ret = fstatat(dfd, path, &st, flags);
+	if (ret < 0)
+		return false;
+
+	return st.st_uid == expected_uid && st.st_gid == expected_gid;
+}
+
 /**
  * Validate that currently changing the idmapping of an idmapped mount fails.
  */
@@ -1331,6 +1382,8 @@ TEST_F(mount_setattr_idmapped, change_idmapping)
 		.attr_set = MOUNT_ATTR_IDMAP,
 	};
 
+	ASSERT_TRUE(expected_uid_gid(-EBADF, "/mnt/D", 0, 0, 0));
+
 	if (!mount_setattr_supported())
 		SKIP(return, "mount_setattr syscall not supported");
 
@@ -1348,27 +1401,25 @@ TEST_F(mount_setattr_idmapped, change_idmapping)
 				    AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
 	ASSERT_EQ(close(attr.userns_fd), 0);
 
+	EXPECT_FALSE(expected_uid_gid(open_tree_fd, ".", 0, 0, 0));
+	EXPECT_TRUE(expected_uid_gid(open_tree_fd, ".", 0, 10000, 10000));
+
 	/* Change idmapping on a detached mount that is already idmapped. */
 	attr.userns_fd	= get_userns_fd(0, 20000, 10000);
 	ASSERT_GE(attr.userns_fd, 0);
 	ASSERT_NE(sys_mount_setattr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	/*
+	 * Make sure that open_tree_attr() without OPEN_TREE_CLONE is not a way
+	 * to bypass this mount_setattr() restriction.
+	 */
+	EXPECT_LT(sys_open_tree_attr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	EXPECT_FALSE(expected_uid_gid(open_tree_fd, ".", 0, 20000, 20000));
+	EXPECT_TRUE(expected_uid_gid(open_tree_fd, ".", 0, 10000, 10000));
+
 	ASSERT_EQ(close(attr.userns_fd), 0);
 	ASSERT_EQ(close(open_tree_fd), 0);
 }
 
-static bool expected_uid_gid(int dfd, const char *path, int flags,
-			     uid_t expected_uid, gid_t expected_gid)
-{
-	int ret;
-	struct stat st;
-
-	ret = fstatat(dfd, path, &st, flags);
-	if (ret < 0)
-		return false;
-
-	return st.st_uid == expected_uid && st.st_gid == expected_gid;
-}
-
 TEST_F(mount_setattr_idmapped, idmap_mount_tree_invalid)
 {
 	int open_tree_fd = -EBADF;