fs/9p/fid.h

   1 /*
   2  * V9FS FID Management
   3  *
   4  *  Copyright (C) 2005 by Eric Van Hensbergen <ericvh@gmail.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License version 2
   8  *  as published by the Free Software Foundation.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to:
  17  *  Free Software Foundation
  18  *  51 Franklin Street, Fifth Floor
  19  *  Boston, MA  02111-1301  USA
  20  *
  21  */
  22 #ifndef FS_9P_FID_H
  23 #define FS_9P_FID_H
  24 #include <linux/list.h>
  25
  26 struct p9_fid *v9fs_fid_lookup(struct dentry *dentry);
  27 static inline struct p9_fid *v9fs_parent_fid(struct dentry *dentry)
  28 {
  29         return v9fs_fid_lookup(dentry->d_parent);
  30 }
  31 void v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid);
  32 struct p9_fid *v9fs_writeback_fid(struct dentry *dentry);
  33 static inline struct p9_fid *clone_fid(struct p9_fid *fid)
  34 {
  35         return IS_ERR(fid) ? fid :  p9_client_walk(fid, 0, NULL, 1);
  36 }
  37 static inline struct p9_fid *v9fs_fid_clone(struct dentry *dentry)
  38 {
  39         return clone_fid(v9fs_fid_lookup(dentry));
  40 }
  41 #endif