Lines Matching defs:upper
110 struct dentry *upper;
120 upper = ovl_i_dentry_upper(inode);
121 if (upper)
122 ret = ovl_revalidate_real(upper, flags, weak);
197 /* Sync real dirty inodes in upper filesystem (if it exists) */
243 * Get the filesystem statistics. As writes always target the upper layer
244 * filesystem pass the statfs to the upper filesystem (if it exists)
337 * allowed as upper are limited to "normal" ones, where checking
548 pr_err("upper fs is r/o, try multi-lower layers mount\n");
729 * workdir and upper are on same fs, we can do iterate_dir() on
739 pr_warn("upper fs needs to support d_type.\n");
741 /* Check if upper/work fs supports O_TMPFILE */
747 pr_warn("upper fs does not support tmpfile.\n");
750 /* Check if upper/work fs supports RENAME_WHITEOUT */
757 pr_warn("upper fs does not support RENAME_WHITEOUT.\n");
760 * Check if upper/work fs supports (trusted|user).overlay.* xattr
764 pr_warn("failed to set xattr on upper\n");
798 * We allowed sub-optimal upper fs configuration and don't want to break
799 * users over kernel upgrade, but we never allowed remote upper fs, so
800 * we can enforce strict requirements for remote upper fs.
804 pr_err("upper fs missing required features.\n");
821 /* Check if upper/work fs supports file handles */
825 pr_warn("upper fs does not support file handles, falling back to index=off.\n");
829 /* Check if upper fs has 32bit inode numbers */
888 /* Verify lower root is upper root origin */
892 pr_err("failed to verify upper root origin\n");
914 * Verify upper root is exclusively associated with index dir.
915 * Older kernels stored upper fh in ".overlay.origin"
917 * upper dir file handle. In any case, verify or set xattr
918 * ".overlay.upper" to indicate that index may have
931 pr_err("failed to verify index dir 'upper' xattr\n");
958 * lower inode of non-dir upper.
1049 * idx/fsid 0 are reserved for upper fs even with lower only overlay
1055 * All lower layers that share the same fs as upper layer, use the same
1056 * pseudo_dev as upper layer. Allocate fs[0].pseudo_dev even for lower
1058 * is_lower will be set if upper fs is shared with a lower layer.
1062 pr_err("failed to get anonymous bdev for upper fs\n");
1148 * fsid, where fsid 0 is reserved for upper fs (even with
1158 pr_info("\"xino\" feature enabled using %d upper inode bits.\n",
1224 * - upper/work dir of any overlayfs instance
1312 /* Root inode uses upper st_ino/i_ino */
1376 * Layer 0 is reserved for upper even if there's no upper.
1408 err = ovl_get_upper(sb, ofs, &layers[0], &ctx->upper);
1422 err = ovl_get_workdir(sb, ofs, &ctx->upper, &ctx->work);
1437 /* If the upper fs is nonexistent, we mark overlayfs r/o too */
1442 pr_warn("The uuid=off requires a single fs for lower and upper, falling back to uuid=null.\n");
1446 ovl_init_uuid_xattr(sb, ofs, &ctx->upper);
1450 err = ovl_get_indexdir(sb, ofs, oe, &ctx->upper);
1498 root_dentry = ovl_get_root(sb, ctx->upper.dentry, oe);