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Date: Fri, 20 Aug 2010 12:23:32 +0530 From: "Aneesh Kumar K. V" <aneesh.kumar@...ux.vnet.ibm.com> To: hch@...radead.org, viro@...iv.linux.org.uk, adilger@....com, corbet@....net, neilb@...e.de, hooanon05@...oo.co.jp, bfields@...ldses.org, miklos@...redi.hu Cc: linux-fsdevel@...r.kernel.org, sfrench@...ibm.com, philippe.deniel@....FR, linux-kernel@...r.kernel.org Subject: Re: [PATCH -V18 04/13] vfs: Allow handle based open on symlinks On Fri, 20 Aug 2010 07:43:12 +0530, "Aneesh Kumar K. V" <aneesh.kumar@...ux.vnet.ibm.com> wrote: > On Fri, 20 Aug 2010 07:21:28 +0530, "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com> wrote: > > The patch update may_open to allow handle based open on symlinks. > > The file handle based API use file descritor returned from open_by_handle_at > > to do different file system operations. To find the link target name we > > need to get a file descriptor on symlinks. > > > > We should be able to read the link target using file handle. The exact > > usecase is with respect to implementing READLINK operation on a > > userspace NFS server. The request contain the file handle and the > > response include target name. > > > > If we don't do this, we will need new syscalls for doing stat, readlink > and link on symlinks that take file handle as the argument. If that is ok, > I can redo the patch series accordingly. > This ended up with the below new syscalls sys_handle_readlink, sys_handle_stat64, sys_handle_link, sys_handle_chown, sys_handle_setxattr, sys_handle_getxattr, sys_handle_listxattr, sys_handle_removexattr, sys_handle_utimes, compat_sys_handle_utimes -aneesh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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