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9451a9a52f
Define inode-level data storage objects (managed by cifsInodeInfo structs). Each inode-level object is created in a super-block level object and is itself a data storage object in to which pages from the inode are stored. The inode object is keyed by UniqueId. The coherency data being used is LastWriteTime, LastChangeTime and end of file reported by the server. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/*
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* fs/cifs/fscache.h - CIFS filesystem cache interface definitions
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*
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* Copyright (c) 2010 Novell, Inc.
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* Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _CIFS_FSCACHE_H
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#define _CIFS_FSCACHE_H
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#include <linux/fscache.h>
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#include "cifsglob.h"
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#ifdef CONFIG_CIFS_FSCACHE
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extern struct fscache_netfs cifs_fscache_netfs;
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extern const struct fscache_cookie_def cifs_fscache_server_index_def;
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extern const struct fscache_cookie_def cifs_fscache_super_index_def;
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extern const struct fscache_cookie_def cifs_fscache_inode_object_def;
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extern int cifs_fscache_register(void);
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extern void cifs_fscache_unregister(void);
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/*
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* fscache.c
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*/
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extern void cifs_fscache_get_client_cookie(struct TCP_Server_Info *);
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extern void cifs_fscache_release_client_cookie(struct TCP_Server_Info *);
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extern void cifs_fscache_get_super_cookie(struct cifsTconInfo *);
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extern void cifs_fscache_release_super_cookie(struct cifsTconInfo *);
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extern void cifs_fscache_release_inode_cookie(struct inode *);
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extern void cifs_fscache_set_inode_cookie(struct inode *, struct file *);
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extern void cifs_fscache_reset_inode_cookie(struct inode *);
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#else /* CONFIG_CIFS_FSCACHE */
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static inline int cifs_fscache_register(void) { return 0; }
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static inline void cifs_fscache_unregister(void) {}
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static inline void
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cifs_fscache_get_client_cookie(struct TCP_Server_Info *server) {}
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static inline void
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cifs_fscache_get_client_cookie(struct TCP_Server_Info *server); {}
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static inline void cifs_fscache_get_super_cookie(struct cifsTconInfo *tcon) {}
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static inline void
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cifs_fscache_release_super_cookie(struct cifsTconInfo *tcon) {}
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static inline void cifs_fscache_release_inode_cookie(struct inode *inode) {}
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static inline void cifs_fscache_set_inode_cookie(struct inode *inode,
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struct file *filp) {}
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static inline void cifs_fscache_reset_inode_cookie(struct inode *inode) {}
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#endif /* CONFIG_CIFS_FSCACHE */
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#endif /* _CIFS_FSCACHE_H */
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