Messages in this thread |  | | | From | "Aneesh Kumar K. V" <> | | Subject | Re: [PATCH -V18 04/13] vfs: Allow handle based open on symlinks | | Date | Fri, 20 Aug 2010 12:23:32 +0530 |
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On Fri, 20 Aug 2010 07:43:12 +0530, "Aneesh Kumar K. V" <aneesh.kumar@linux.vnet.ibm.com> wrote: > On Fri, 20 Aug 2010 07:21:28 +0530, "Aneesh Kumar K.V" <aneesh.kumar@linux.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
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