fs/exofs/symlink.c

   1 /*
   2  * Copyright (C) 2005, 2006
   3  * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com)
   4  * Copyright (C) 2005, 2006
   5  * International Business Machines
   6  * Copyright (C) 2008, 2009
   7  * Boaz Harrosh <bharrosh@panasas.com>
   8  *
   9  * Copyrights for code taken from ext2:
  10  *     Copyright (C) 1992, 1993, 1994, 1995
  11  *     Remy Card (card@masi.ibp.fr)
  12  *     Laboratoire MASI - Institut Blaise Pascal
  13  *     Universite Pierre et Marie Curie (Paris VI)
  14  *     from
  15  *     linux/fs/minix/inode.c
  16  *     Copyright (C) 1991, 1992  Linus Torvalds
  17  *
  18  * This file is part of exofs.
  19  *
  20  * exofs is free software; you can redistribute it and/or modify
  21  * it under the terms of the GNU General Public License as published by
  22  * the Free Software Foundation.  Since it is based on ext2, and the only
  23  * valid version of GPL for the Linux kernel is version 2, the only valid
  24  * version of GPL for exofs is version 2.
  25  *
  26  * exofs is distributed in the hope that it will be useful,
  27  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  28  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  29  * GNU General Public License for more details.
  30  *
  31  * You should have received a copy of the GNU General Public License
  32  * along with exofs; if not, write to the Free Software
  33  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  34  */
  35
  36 #include <linux/namei.h>
  37
  38 #include "exofs.h"
  39
  40 static void *exofs_follow_link(struct dentry *dentry, struct nameidata *nd)
  41 {
  42         struct exofs_i_info *oi = exofs_i(dentry->d_inode);
  43
  44         nd_set_link(nd, (char *)oi->i_data);
  45         return NULL;
  46 }
  47
  48 const struct inode_operations exofs_symlink_inode_operations = {
  49         .readlink       = generic_readlink,
  50         .follow_link    = page_follow_link_light,
  51         .put_link       = page_put_link,
  52 };
  53
  54 const struct inode_operations exofs_fast_symlink_inode_operations = {
  55         .readlink       = generic_readlink,
  56         .follow_link    = exofs_follow_link,
  57 };