Track metadata bhs for an inode in fs-private part of the inode.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/minix/file.c  | 1 +
 fs/minix/inode.c | 8 ++++++++
 fs/minix/minix.h | 2 ++
 fs/minix/namei.c | 1 +
 4 files changed, 12 insertions(+)

diff --git a/fs/minix/file.c b/fs/minix/file.c
index dca7ac71f049..b3abe380634a 100644
--- a/fs/minix/file.c
+++ b/fs/minix/file.c
@@ -50,4 +50,5 @@ static int minix_setattr(struct mnt_idmap *idmap,
 const struct inode_operations minix_file_inode_operations = {
 	.setattr	= minix_setattr,
 	.getattr	= minix_getattr,
+	.get_metadata_bhs = minix_get_metadata_bhs,
 };
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index ab7c06efb139..20abbe21a632 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -85,6 +85,8 @@ static struct inode *minix_alloc_inode(struct super_block *sb)
 	ei = alloc_inode_sb(sb, minix_inode_cachep, GFP_KERNEL);
 	if (!ei)
 		return NULL;
+	mmb_init(&ei->i_metadata_bhs);
+
 	return &ei->vfs_inode;
 }
 
@@ -122,6 +124,11 @@ static void destroy_inodecache(void)
 	kmem_cache_destroy(minix_inode_cachep);
 }
 
+struct mapping_metadata_bhs *minix_get_metadata_bhs(struct inode *inode)
+{
+	return &minix_i(inode)->i_metadata_bhs;
+}
+
 static const struct super_operations minix_sops = {
 	.alloc_inode	= minix_alloc_inode,
 	.free_inode	= minix_free_in_core_inode,
@@ -502,6 +509,7 @@ static const struct address_space_operations minix_aops = {
 static const struct inode_operations minix_symlink_inode_operations = {
 	.get_link	= page_get_link,
 	.getattr	= minix_getattr,
+	.get_metadata_bhs = minix_get_metadata_bhs,
 };
 
 void minix_set_inode(struct inode *inode, dev_t rdev)
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index 7e1f652f16d3..38981a30ac99 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -19,6 +19,7 @@ struct minix_inode_info {
 		__u16 i1_data[16];
 		__u32 i2_data[16];
 	} u;
+	struct mapping_metadata_bhs i_metadata_bhs;
 	struct inode vfs_inode;
 };
 
@@ -57,6 +58,7 @@ unsigned long minix_count_free_blocks(struct super_block *sb);
 int minix_getattr(struct mnt_idmap *, const struct path *,
 		struct kstat *, u32, unsigned int);
 int minix_prepare_chunk(struct folio *folio, loff_t pos, unsigned len);
+struct mapping_metadata_bhs *minix_get_metadata_bhs(struct inode *inode);
 
 extern void V1_minix_truncate(struct inode *);
 extern void V2_minix_truncate(struct inode *);
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index 263e4ba8b1c8..e31e84a677eb 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -288,4 +288,5 @@ const struct inode_operations minix_dir_inode_operations = {
 	.rename		= minix_rename,
 	.getattr	= minix_getattr,
 	.tmpfile	= minix_tmpfile,
+	.get_metadata_bhs = minix_get_metadata_bhs,
 };
-- 
2.51.0