From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753921AbdK1Vib (ORCPT ); Tue, 28 Nov 2017 16:38:31 -0500 Received: from bombadil.infradead.org ([65.50.211.133]:39058 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752750AbdK1Vdd (ORCPT ); Tue, 28 Nov 2017 16:33:33 -0500 From: Matthew Wilcox Cc: Matthew Wilcox , Chris Mi , Jiri Pirko , "David S . Miller" , Cong Wang , Jamal Hadi Salim , Daniel Borkmann , Eric Biggers , Lai Jiangshan , Tejun Heo , Rehas Sachdeva , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 04/17] IDR test suite: Check handling negative end correctly Date: Tue, 28 Nov 2017 13:32:59 -0800 Message-Id: <20171128213312.28983-5-willy@infradead.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20171128213312.28983-1-willy@infradead.org> References: <20171128213312.28983-1-willy@infradead.org> To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Matthew Wilcox One of the charming quirks of the idr_alloc() interface is that you can pass a negative end and it will be interpreted as "maximum". Ensure we don't break that. Signed-off-by: Matthew Wilcox --- tools/testing/radix-tree/idr-test.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c index 193450b29bf0..892ef8855b02 100644 --- a/tools/testing/radix-tree/idr-test.c +++ b/tools/testing/radix-tree/idr-test.c @@ -207,6 +207,7 @@ void idr_checks(void) assert(idr_alloc(&idr, item, i, i + 10, GFP_KERNEL) == i); } assert(idr_alloc(&idr, DUMMY_PTR, i - 2, i, GFP_KERNEL) == -ENOSPC); + assert(idr_alloc(&idr, DUMMY_PTR, i - 2, i + 10, GFP_KERNEL) == -ENOSPC); idr_for_each(&idr, item_idr_free, &idr); idr_destroy(&idr); -- 2.15.0