[PATCH 25/32] bfs: Track metadata bhs in fs-private inode part

[Jan Kara <jack@suse.cz>]

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

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/bfs/bfs.h   | 2 ++
 fs/bfs/dir.c   | 1 +
 fs/bfs/file.c  | 4 +++-
 fs/bfs/inode.c | 7 +++++++
 4 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index 606f9378b2f0..5fadb6e860f1 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -35,6 +35,7 @@ struct bfs_inode_info {
 	unsigned long i_dsk_ino; /* inode number from the disk, can be 0 */
 	unsigned long i_sblock;
 	unsigned long i_eblock;
+	struct mapping_metadata_bhs i_metadata_bhs;
 	struct inode vfs_inode;
 };
 
@@ -55,6 +56,7 @@ static inline struct bfs_inode_info *BFS_I(struct inode *inode)
 /* inode.c */
 extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
 extern void bfs_dump_imap(const char *, struct super_block *);
+struct mapping_metadata_bhs *bfs_get_metadata_bhs(struct inode *inode);
 
 /* file.c */
 extern const struct inode_operations bfs_file_inops;
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index c375e22c4c0c..30529f476582 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -262,6 +262,7 @@ const struct inode_operations bfs_dir_inops = {
 	.link			= bfs_link,
 	.unlink			= bfs_unlink,
 	.rename			= bfs_rename,
+	.get_metadata_bhs	= bfs_get_metadata_bhs,
 };
 
 static int bfs_add_entry(struct inode *dir, const struct qstr *child, int ino)
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index d33d6bde992b..335ab07e37fe 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -200,4 +200,6 @@ const struct address_space_operations bfs_aops = {
 	.bmap		= bfs_bmap,
 };
 
-const struct inode_operations bfs_file_inops;
+const struct inode_operations bfs_file_inops = {
+	.get_metadata_bhs = bfs_get_metadata_bhs,
+};
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index e0e50a9dbe9c..f1a392394a23 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -259,6 +259,8 @@ static struct inode *bfs_alloc_inode(struct super_block *sb)
 	bi = alloc_inode_sb(sb, bfs_inode_cachep, GFP_KERNEL);
 	if (!bi)
 		return NULL;
+	mmb_init(&bi->i_metadata_bhs);
+
 	return &bi->vfs_inode;
 }
 
@@ -296,6 +298,11 @@ static void destroy_inodecache(void)
 	kmem_cache_destroy(bfs_inode_cachep);
 }
 
+struct mapping_metadata_bhs *bfs_get_metadata_bhs(struct inode *inode)
+{
+	return &BFS_I(inode)->i_metadata_bhs;
+}
+
 static const struct super_operations bfs_sops = {
 	.alloc_inode	= bfs_alloc_inode,
 	.free_inode	= bfs_free_inode,
-- 
2.51.0