1 files changed, 10 insertions, 2 deletions

diff --git a/fs/gfs2/meta_io.h b/fs/gfs2/meta_io.h
index de270c2f9b63..6a1d9ba16411 100644
--- a/fs/gfs2/meta_io.h
+++ b/fs/gfs2/meta_io.h
@@ -37,8 +37,16 @@ static inline void gfs2_buffer_copy_tail(struct buffer_head *to_bh,
                0, from_head - to_head);
 }
 
-struct inode *gfs2_aspace_get(struct gfs2_sbd *sdp);
-void gfs2_aspace_put(struct inode *aspace);
+extern const struct address_space_operations gfs2_meta_aops;
+
+static inline struct gfs2_sbd *gfs2_mapping2sbd(struct address_space *mapping)
+{
+        struct inode *inode = mapping->host;
+        if (mapping->a_ops == &gfs2_meta_aops)
+                return (((struct gfs2_glock *)mapping) - 1)->gl_sbd;
+        else
+                return inode->i_sb->s_fs_info;
+}
 
 void gfs2_meta_sync(struct gfs2_glock *gl);