From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1YsAYz-0000yO-3G for ltp-list@lists.sourceforge.net; Tue, 12 May 2015 13:49:37 +0000 Date: Tue, 12 May 2015 15:48:59 +0200 From: Cyril Hrubis Message-ID: <20150512134858.GA11906@rei.suse.de> References: <20150504063425.GA9995@localhost.localdomain> <20150504115324.GB7674@rei.suse.de> <20150506135504.GC2752@localhost.localdomain> <5551F71E.7090400@huawei.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <5551F71E.7090400@huawei.com> Subject: Re: [LTP] [PATCH] performing test on loop device if noatime or relatime specified List-Id: Linux Test Project General Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-list-bounces@lists.sourceforge.net To: Cui Bixuan Cc: ltp-list@lists.sourceforge.net Hi! > then compile error: > gcc -g -O2 -g -O2 -fno-strict-aliasing -pipe -Wall -W -g -O2 -Wold-style-definition -D_FORTIFY_SOURCE=2 -I/home/cuibixuan/home/git/ltp/ltp/testcases/kernel/include -I../../../../include -I../../../../include -L../../../../lib open12.c -lltp -o open12 > open12.c: In function ?setup?: > open12.c:103: error: ?MS_STRICTATIME? undeclared (first use in this function) > open12.c:103: error: (Each undeclared identifier is reported only once > open12.c:103: error: for each function it appears in.) > make[4]: *** [open12] Error 1 > make[4]: Leaving directory `/home/cuibixuan/home/git/ltp/ltp/testcases/kernel/syscalls/open' > > Do 'man mount' and can not find 'MS_STRICTATIME'. > > I get from man-pages of linux: > MS_STRICTATIME (since Linux 2.6.30) > Always update the last access time (atime) when files on this > filesystem are accessed. (This was the default behavior > before Linux 2.6.30.) Specifying this flag overrides the > effect of setting the MS_NOATIME and MS_RELATIME flags. > > If not support 'MS_STRICTATIME'? > My system is SUSE11-SP2, linux 3.0.13, and gcc version 4.3.4. Solution to compilation failures is to add fallback definition into ltp/include/lapi/mount.h (have a look at ltp/include/lapi/fcntl.h) and include it in the testcase source. That would make the testcase compile, but it may still fail when executed. To fix the execution we would need to do a runtime check if the kernel supports this flag, I guess that we would need to pass it only on newer kernels (we use tst_kvercmp() for that). -- Cyril Hrubis chrubis@suse.cz ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Ltp-list mailing list Ltp-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ltp-list