diff options
Diffstat (limited to 'fs/overlayfs/inode.c')
| -rw-r--r-- | fs/overlayfs/inode.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 8a283ec21e34..cfccd91c51e3 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -83,14 +83,15 @@ static int ovl_map_dev_ino(struct dentry *dentry, struct kstat *stat, */ stat->dev = dentry->d_sb->s_dev; stat->ino = dentry->d_inode->i_ino; - } else if (lower_layer) { + } else if (lower_layer && lower_layer->fsid) { /* * For non-samefs setup, if we cannot map all layers st_ino * to a unified address space, we need to make sure that st_dev - * is unique per layer. Upper layer uses real st_dev and lower - * layers use the unique anonymous bdev. + * is unique per lower fs. Upper layer uses real st_dev and + * lower layers use the unique anonymous bdev assigned to the + * lower fs. */ - stat->dev = lower_layer->pseudo_dev; + stat->dev = lower_layer->fs->pseudo_dev; } return 0; |