ntfs_ir_lookup
ir = ntfs_ir_lookup(icx->ni, icx->name, icx->name_len, &ctx);
ir = ntfs_ir_lookup(icx->ni, icx->name, icx->name_len,
if (!ntfs_ir_lookup(ni, name, attr->name_length, &ctx))
ictx->ir = ntfs_ir_lookup(ictx->ni,
ir = ntfs_ir_lookup(ni, name, len, &ctx);
ir = ntfs_ir_lookup(ni, icx->name, icx->name_len, &icx->actx);