From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Stasv-00052Z-4u for ltp-list@lists.sourceforge.net; Tue, 24 Jul 2012 08:54:29 +0000 Received: from [222.73.24.84] (helo=song.cn.fujitsu.com) by sog-mx-1.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1Stast-0006ea-Ka for ltp-list@lists.sourceforge.net; Tue, 24 Jul 2012 08:54:29 +0000 Message-ID: <500E628A.3060208@cn.fujitsu.com> Date: Tue, 24 Jul 2012 16:53:30 +0800 From: Wanlong Gao MIME-Version: 1.0 References: <241B7B02-77E9-4181-B4BA-F2276F1DCBE2@gmail.com> <1343109556-12022-1-git-send-email-gaowanlong@cn.fujitsu.com> <500E5A89.7090102@cn.fujitsu.com> In-Reply-To: Subject: Re: [LTP] [PATCH V2] open_posix:aio_fsync:14-1: wait for aio_writecompletion Reply-To: gaowanlong@cn.fujitsu.com 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: Nitin Yadav Cc: LTP List On 07/24/2012 04:49 PM, Nitin Yadav wrote: > Thanks for your quick reply :-) You are always welcome. Wanlong Gao > > Thanks, > Nitin Yadav > > -----Original Message----- > From: Wanlong Gao [mailto:gaowanlong@cn.fujitsu.com] > Sent: Tuesday, July 24, 2012 1:49 PM > To: Nitin Yadav > Cc: LTP > Subject: Re: [LTP] [PATCH V2] open_posix:aio_fsync:14-1: wait for > aio_writecompletion > > On 07/24/2012 03:16 PM, Nitin Yadav wrote: >> Hi Wanlong, >> Even I am getting error io_fsync write: Invalid argument, while > running >> io test cases on linux 3.2 kernel.Below are the outputs for error. >> >> aio02/aio_tio 0 TINFO : Running test 1 >> >> aio02/aio_tio 0 TINFO : Running test 2 >> >> aio02/aio_tio 0 TINFO : Running test 3 >> >> aio02/aio_tio 0 TINFO : Running test 4 >> >> aio02/aio_tio 0 TINFO : Running test 5 >> >> aio02/aio_tio 0 TINFO : Running test 6 >> >> aio02/aio_tio 0 TINFO : Running test 7 >> >> io_fsync write: Invalid argument >> > > io_fsync() calls the syscall io_submit(). > when doing IO_CMD_FSYNC and IO_CMD_FDSYNC, Linux kernel > will involve the filesystem's aio_fsync and aio_fdsync > operations, and if the filesystem doesn't implement > these two operations, it will return -EINVAL, this is > the error you meet here. > In fact, the syscall io_submit() in kernel is asynchronous, > and the performance is better than adding a outstanding > asynchronous aio_* operations. > In general, this CMD is not implemented in Linux kernel. > > Thanks, > Wanlong Gao > > >> >> Could you please suggest me some pointer. >> >> Thanks! >> Nitin yadav >> >> -----Original Message----- >> From: Wanlong Gao [mailto:gaowanlong@cn.fujitsu.com] >> Sent: Tuesday, July 24, 2012 11:29 AM >> To: LTP >> Subject: [LTP] [PATCH V2] open_posix:aio_fsync:14-1: wait for >> aio_writecompletion >> >> Wait for aio_write() completion. >> If aio_fsync() sync the fd without the previous aio_write() >> completion, it will cause Segment Fault. >> >> Signed-off-by: Wanlong Gao >> --- >> .../conformance/interfaces/aio_fsync/14-1.c | 10 >> ++++++++++ >> 1 file changed, 10 insertions(+) >> >> diff --git >> > a/testcases/open_posix_testsuite/conformance/interfaces/aio_fsync/14-1.c >> > b/testcases/open_posix_testsuite/conformance/interfaces/aio_fsync/14-1.c >> index a9cd3bf..02ba8a5 100644 >> --- >> > a/testcases/open_posix_testsuite/conformance/interfaces/aio_fsync/14-1.c >> +++ >> > b/testcases/open_posix_testsuite/conformance/interfaces/aio_fsync/14-1.c >> @@ -27,6 +27,7 @@ int main() >> #define BUF_SIZE 111 >> char buf[BUF_SIZE]; >> int fd; >> + int ret; >> struct aiocb aiocb_write; >> struct aiocb aiocb_fsync; >> >> @@ -57,6 +58,15 @@ int main() >> exit(PTS_FAIL); >> } >> >> + do { >> + usleep(10000); >> + ret = aio_error(&aiocb_write); >> + } while (ret == EINPROGRESS); >> + if (ret < 0) { >> + printf(TNAME " Error at aio_error() : %s\n", >> strerror(ret)); >> + exit(PTS_FAIL); >> + } >> + >> memset(&aiocb_fsync, 0, sizeof(aiocb_fsync)); >> aiocb_fsync.aio_fildes = fd; >> >> > > > Information transmitted by this e-mail is proprietary to MphasiS, its associated companies and/ or its customers and is intended > for use only by the individual or entity to which it is addressed, and may contain information that is privileged, confidential or > exempt from disclosure under applicable law. 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