Lines Matching defs:lower
82 struct dentry *real = NULL, *lower;
101 lower = ovl_dentry_lowerdata(dentry);
102 if (!lower)
104 real = lower;
192 oi->lower = NULL;
213 iput(oi->lower);
910 /* Check if lower fs has 32bit inode numbers */
1105 * attempted to be used as a lower layer in a new overlay mount.
1132 pr_err("upper fs is r/o, try multi-lower layers mount\n");
1453 /* Verify lower root is upper root origin */
1518 * We allow using single lower with null uuid for index and nfs_export
1519 * for example to support those features with single lower squashfs.
1520 * To avoid regressions in setups of overlay with re-formatted lower
1521 * squashfs, do not allow decoding origin with lower null uuid unless
1523 * lower inode of non-dir upper.
1531 * We use uuid to associate an overlay lower file handle with a
1532 * lower layer, so we can accept lower fs with null uuid as long
1533 * as all lower layers with null uuid are on the same fs.
1534 * if we detect multiple lower fs with the same uuid, we
1535 * disable lower file handle decoding on all of them.
1565 pr_warn("%s uuid detected in lower fs '%pd2', falling back to index=off,nfs_export=off.\n",
1597 /* idx/fsid 0 are reserved for upper fs even with lower only overlay */
1601 * All lower layers that share the same fs as upper layer, use the same
1602 * pseudo_dev as upper layer. Allocate fs[0].pseudo_dev even for lower
1604 * is_lower will be set if upper fs is shared with a lower layer.
1627 * Check if lower root conflicts with this overlay layers before
1654 * Make lower layers R/O. That way fchmod/fchown on lower file
1655 * will fail instead of modifying lower fs.
1687 * lower only overlay) +1 extra bit is reserved for the non
1689 * xino lower bits overflow.
1706 const char *lower, unsigned int numlower,
1725 err = ovl_lower_dir(lower, &stack[i], ofs, &sb->s_stack_depth);
1729 lower = strchr(lower, '\0') + 1;
1924 pr_err("too many lower directories, limit is %d\n",