diff options
Diffstat (limited to 'fs/overlayfs')
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 1 | ||||
| -rw-r--r-- | fs/overlayfs/util.c | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 0ad593a85121..99f793904801 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -229,6 +229,7 @@ struct inode *ovl_inode_upper(struct inode *inode); struct inode *ovl_inode_lower(struct inode *inode); struct inode *ovl_inode_lowerdata(struct inode *inode); struct inode *ovl_inode_real(struct inode *inode); +struct inode *ovl_inode_realdata(struct inode *inode); struct ovl_dir_cache *ovl_dir_cache(struct inode *inode); void ovl_set_dir_cache(struct inode *inode, struct ovl_dir_cache *cache); void ovl_dentry_set_flag(unsigned long flag, struct dentry *dentry); diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index 63311c536216..73939e08d8bf 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -256,6 +256,18 @@ struct inode *ovl_inode_lowerdata(struct inode *inode) return OVL_I(inode)->lowerdata ?: ovl_inode_lower(inode); } +/* Return real inode which contains data. Does not return metacopy inode */ +struct inode *ovl_inode_realdata(struct inode *inode) +{ + struct inode *upperinode; + + upperinode = ovl_inode_upper(inode); + if (upperinode && ovl_has_upperdata(inode)) + return upperinode; + + return ovl_inode_lowerdata(inode); +} + struct ovl_dir_cache *ovl_dir_cache(struct inode *inode) { return OVL_I(inode)->cache; |