diff options
Diffstat (limited to 'fs/gfs2/meta_io.h')
| -rw-r--r-- | fs/gfs2/meta_io.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/gfs2/meta_io.h b/fs/gfs2/meta_io.h index 21880d72081a..d0a58cdd433a 100644 --- a/fs/gfs2/meta_io.h +++ b/fs/gfs2/meta_io.h @@ -40,9 +40,11 @@ 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_name.ln_sbd; - else if (mapping->a_ops == &gfs2_rgrp_aops) + if (mapping->a_ops == &gfs2_meta_aops) { + struct gfs2_glock_aspace *gla = + container_of(mapping, struct gfs2_glock_aspace, mapping); + return gla->glock.gl_name.ln_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; |