fs/cifs/fscache.h

   1 /*
   2  *   fs/cifs/fscache.h - CIFS filesystem cache interface definitions
   3  *
   4  *   Copyright (c) 2010 Novell, Inc.
   5  *   Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
   6  *
   7  *   This library is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU Lesser General Public License as published
   9  *   by the Free Software Foundation; either version 2.1 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This library is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  15  *   the GNU Lesser General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU Lesser General Public License
  18  *   along with this library; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20  */
  21 #ifndef _CIFS_FSCACHE_H
  22 #define _CIFS_FSCACHE_H
  23
  24 #include <linux/fscache.h>
  25
  26 #include "cifsglob.h"
  27
  28 #ifdef CONFIG_CIFS_FSCACHE
  29
  30 extern struct fscache_netfs cifs_fscache_netfs;
  31 extern const struct fscache_cookie_def cifs_fscache_server_index_def;
  32 extern const struct fscache_cookie_def cifs_fscache_super_index_def;
  33 extern const struct fscache_cookie_def cifs_fscache_inode_object_def;
  34
  35
  36 extern int cifs_fscache_register(void);
  37 extern void cifs_fscache_unregister(void);
  38
  39 /*
  40  * fscache.c
  41  */
  42 extern void cifs_fscache_get_client_cookie(struct TCP_Server_Info *);
  43 extern void cifs_fscache_release_client_cookie(struct TCP_Server_Info *);
  44 extern void cifs_fscache_get_super_cookie(struct cifsTconInfo *);
  45 extern void cifs_fscache_release_super_cookie(struct cifsTconInfo *);
  46
  47 extern void cifs_fscache_release_inode_cookie(struct inode *);
  48 extern void cifs_fscache_set_inode_cookie(struct inode *, struct file *);
  49 extern void cifs_fscache_reset_inode_cookie(struct inode *);
  50
  51 #else /* CONFIG_CIFS_FSCACHE */
  52 static inline int cifs_fscache_register(void) { return 0; }
  53 static inline void cifs_fscache_unregister(void) {}
  54
  55 static inline void
  56 cifs_fscache_get_client_cookie(struct TCP_Server_Info *server) {}
  57 static inline void
  58 cifs_fscache_get_client_cookie(struct TCP_Server_Info *server); {}
  59 static inline void cifs_fscache_get_super_cookie(struct cifsTconInfo *tcon) {}
  60 static inline void
  61 cifs_fscache_release_super_cookie(struct cifsTconInfo *tcon) {}
  62
  63 static inline void cifs_fscache_release_inode_cookie(struct inode *inode) {}
  64 static inline void cifs_fscache_set_inode_cookie(struct inode *inode,
  65                                                  struct file *filp) {}
  66 static inline void cifs_fscache_reset_inode_cookie(struct inode *inode) {}
  67
  68
  69 #endif /* CONFIG_CIFS_FSCACHE */
  70
  71 #endif /* _CIFS_FSCACHE_H */