GFS2: Fix address space from page function

[cascardo/linux.git] / fs / gfs2 / meta_io.h

diff --git a/fs/gfs2/meta_io.h b/fs/gfs2/meta_io.h
index 4823b93..ac5d802 100644 (file)
--- a/fs/gfs2/meta_io.h
+++ b/fs/gfs2/meta_io.h
@@ -38,12 +38,15 @@ static inline void gfs2_buffer_copy_tail(struct buffer_head *to_bh,
 }
 
 extern const struct address_space_operations gfs2_meta_aops;
+extern const struct address_space_operations gfs2_rgrp_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 if (mapping->a_ops == &gfs2_rgrp_aops)
+               return container_of(mapping, struct gfs2_sbd, sd_aspace);
        else
                return inode->i_sb->s_fs_info;
 }