--- /dev/null
+From 2398091f9c2c8e0040f4f9928666787a3e8108a7 Mon Sep 17 00:00:00 2001
+From: David Sterba <dsterba@suse.com>
+Date: Tue, 18 Oct 2022 16:05:52 +0200
+Subject: btrfs: fix type of parameter generation in btrfs_get_dentry
+
+From: David Sterba <dsterba@suse.com>
+
+commit 2398091f9c2c8e0040f4f9928666787a3e8108a7 upstream.
+
+The type of parameter generation has been u32 since the beginning,
+however all callers pass a u64 generation, so unify the types to prevent
+potential loss.
+
+CC: stable@vger.kernel.org # 4.9+
+Reviewed-by: Josef Bacik <josef@toxicpanda.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/btrfs/export.c | 2 +-
+ fs/btrfs/export.h | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/fs/btrfs/export.c
++++ b/fs/btrfs/export.c
+@@ -57,7 +57,7 @@ static int btrfs_encode_fh(struct inode
+ }
+
+ struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
+- u64 root_objectid, u32 generation,
++ u64 root_objectid, u64 generation,
+ int check_generation)
+ {
+ struct btrfs_fs_info *fs_info = btrfs_sb(sb);
+--- a/fs/btrfs/export.h
++++ b/fs/btrfs/export.h
+@@ -18,7 +18,7 @@ struct btrfs_fid {
+ } __attribute__ ((packed));
+
+ struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid,
+- u64 root_objectid, u32 generation,
++ u64 root_objectid, u64 generation,
+ int check_generation);
+ struct dentry *btrfs_get_parent(struct dentry *child);
+