fs/exofs/symlink.c

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