static int ovl_copy_up_last(struct dentry *dentry, struct iattr *attr, bool no_data) { int err; struct dentry *parent; struct kstat stat; struct path lowerpath; parent = dget_parent(dentry); err = ovl_copy_up(parent); if (err) goto out_dput_parent; ovl_path_lower(dentry, &lowerpath); err = vfs_getattr(&lowerpath, &stat); if (err) goto out_dput_parent; if (no_data) stat.size = 0; err = ovl_copy_up_one(parent, dentry, &lowerpath, &stat, attr); out_dput_parent: dput(parent); return err; }
static int ovl_copy_up_truncate(struct dentry *dentry) { int err; struct dentry *parent; struct kstat stat; struct path lowerpath; parent = dget_parent(dentry); err = ovl_copy_up(parent); if (err) goto out_dput_parent; ovl_path_lower(dentry, &lowerpath); err = vfs_getattr(&lowerpath, &stat); if (err) goto out_dput_parent; stat.size = 0; err = ovl_copy_up_one(parent, dentry, &lowerpath, &stat); out_dput_parent: dput(parent); return err; }