From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Aneesh Kumar K.V" Subject: [PATCH -V26 00/16] Generic name to handle and open by handle syscalls Date: Sun, 30 Jan 2011 00:38:03 +0530 Message-ID: <1296328099-23263-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: linux-fsdevel@vger.kernel.org, sfrench@us.ibm.com, philippe.deniel@CEA.FR, linux-kernel@vger.kernel.org To: hch@infradead.org, viro@zeniv.linux.org.uk, adilger@sun.com, corbet@lwn.net, neilb@suse.de, npiggin@kernel.dk, hooanon05@yahoo.co.jp, bfields@fieldses.org, miklos@szeredi.hu Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Hi, The below set of patches implement open by handle support using exportfs operations. This allows user space application to map a file name to file handle and later open the file using handle. This should be usable for userspace NFS [1] and 9P server [2]. XFS already support this with the ioctls XFS_IOC_PATH_TO_HANDLE and XFS_IOC_OPEN_BY_HANDLE. [1] http://nfs-ganesha.sourceforge.net/ [2] http://thread.gmane.org/gmane.comp.emulators.qemu/68992 git repo for the patchset at: git://git.kernel.org/pub/scm/linux/kernel/git/kvaneesh/linux-open-handle.git open-by-handle Test case can be found at http://git.kernel.org/?p=fs/ext2/kvaneesh/handle-test.git git://git.kernel.org/pub/scm/fs/ext2/kvaneesh/handle-test.git Changes from V22: a) Add support for O_PATH open flag b) Add support "" names in *at syscalls c) Add support O_PATH descriptor in few selective syscalls like stat, chown, chmod and dup NOTE: v23-25 can be found in the git repo -aneesh