From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2532829DF8 for ; Tue, 17 Dec 2013 18:22:58 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0AE83304053 for ; Tue, 17 Dec 2013 16:22:57 -0800 (PST) Received: from e38.co.us.ibm.com (e38.co.us.ibm.com [32.97.110.159]) by cuda.sgi.com with ESMTP id ri8ZAJP9UJtwjFau (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 17 Dec 2013 16:22:57 -0800 (PST) Received: from /spool/local by e38.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 17 Dec 2013 17:22:56 -0700 Received: from b03cxnp07028.gho.boulder.ibm.com (b03cxnp07028.gho.boulder.ibm.com [9.17.130.15]) by d03dlp02.boulder.ibm.com (Postfix) with ESMTP id E86D43E4003F for ; Tue, 17 Dec 2013 17:22:52 -0700 (MST) Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by b03cxnp07028.gho.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id rBI0MoP87405982 for ; Wed, 18 Dec 2013 01:22:50 +0100 Received: from d03av03.boulder.ibm.com (localhost [127.0.0.1]) by d03av03.boulder.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id rBI0MqK4023116 for ; Tue, 17 Dec 2013 17:22:52 -0700 From: Zhi Yong Wu Subject: [PATCH v2 0/3] xfs: add O_TMPFILE support Date: Wed, 18 Dec 2013 08:22:38 +0800 Message-Id: <1387326161-24530-1-git-send-email-zwu.kernel@gmail.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Cc: Zhi Yong Wu From: Zhi Yong Wu HI, folks It's time to post the latest revision out, welcome to any constructive comment, thanks. If anyone is interested in playing with it, you can get this patchset from my dev git on github: git://github.com/wuzhy/kernel.git xfs_tmpfile The patchset was tested against the code snippet from Andy Lutomirski and other test cases: http://lwn.net/Articles/562296/ If you have any other better test cases, please let me know, thanks. #include #include #include #include #include #define __O_TMPFILE 020000000 #define O_DIRECTORY 0200000 #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) #define AT_EMPTY_PATH 0x1000 int main(int argc, char **argv) { char buf[128]; if (argc != 3) errx(1, "Usage: flinktest PATH linkat|proc"); int fd = open(".", O_TMPFILE | O_RDWR, 0600); if (fd == -1) err(1, "O_TMPFILE"); else printf("fd #: %d\n", fd); write(fd, "test", 4); if (!strcmp(argv[2], "linkat")) { if (linkat(fd, "", AT_FDCWD, argv[1], AT_EMPTY_PATH) != 0) err(1, "linkat"); } else if (!strcmp(argv[2], "proc")) { sprintf(buf, "/proc/self/fd/%d", fd); if (linkat(AT_FDCWD, buf, AT_FDCWD, argv[1], AT_SYMLINK_FOLLOW) != 0) err(1, "linkat"); } else { errx(1, "invalid mode"); } return 0; } Changelog from v1: - Fixed one chunk of the comments from Christoph Hellwig and Jeff Liu. v1: - Addressed the comments from Dave Chinner and Christoph Hellwig. Zhi Yong Wu (3): xfs: factor prid related codes into xfs_get_initial_prid() xfs: add O_TMPFILE support xfs: allow linkat() on O_TMPFILE files fs/xfs/xfs_inode.c | 123 ++++++++++++++++++++++++++++++++++++++++++++-- fs/xfs/xfs_inode.h | 12 +++++ fs/xfs/xfs_iops.c | 16 ++++++ fs/xfs/xfs_shared.h | 4 +- fs/xfs/xfs_symlink.c | 5 +-- fs/xfs/xfs_trans_resv.c | 55 +++++++++++++++++++-- fs/xfs/xfs_trans_resv.h | 2 + 7 files changed, 202 insertions(+), 15 deletions(-) -- 1.7.6.5 _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs