int ovl_setattr(struct dentry *dentry, struct iattr *attr)
{
int err;
+ bool full_copy_up = false;
struct dentry *upperdentry;
const struct cred *old_cred;
err = -ETXTBSY;
if (atomic_read(&realinode->i_writecount) < 0)
goto out_drop_write;
+
+ /* Truncate should trigger data copy up as well */
+ full_copy_up = true;
}
- err = ovl_copy_up(dentry);
+ if (!full_copy_up)
+ err = ovl_copy_up(dentry);
+ else
+ err = ovl_copy_up_with_data(dentry);
if (!err) {
struct inode *winode = NULL;
return -EOPNOTSUPP;
old_cred = ovl_override_creds(inode->i_sb);
+
+ if (fieinfo->fi_flags & FIEMAP_FLAG_SYNC)
+ filemap_write_and_wait(realinode->i_mapping);
+
err = realinode->i_op->fiemap(realinode, fieinfo, start, len);
revert_creds(old_cred);
}
}
ovl_fill_inode(inode, realinode->i_mode, realinode->i_rdev, ino, fsid);
- ovl_inode_init(inode, upperdentry, lowerdentry);
+ ovl_inode_init(inode, upperdentry, lowerdentry, oip->lowerdata);
if (upperdentry && ovl_is_impuredir(upperdentry))
ovl_set_flag(OVL_IMPURE, inode);
OVL_I(inode)->redirect = oip->redirect;
+ if (bylower)
+ ovl_set_flag(OVL_CONST_INO, inode);
+
/* Check for non-merge dir that may have whiteouts */
if (is_dir) {
if (((upperdentry && lowerdentry) || oip->numlower > 1) ||