![Suresh Jayaraman](/assets/img/avatar_default.png)
Define superblock-level cache index objects (managed by cifsTconInfo structs). Each superblock object is created in a server-level index object and in itself an index into which inode-level objects are inserted. The superblock object is keyed by sharename. The UniqueId/IndexNumber is used to validate that the exported share is the same since we accessed it last time. Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
60 lines
2.1 KiB
C
60 lines
2.1 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 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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#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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#endif /* CONFIG_CIFS_FSCACHE */
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#endif /* _CIFS_FSCACHE_H */
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