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/* vnode.h: AFS vnode record * * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef _LINUX_AFS_VNODE_H #define _LINUX_AFS_VNODE_H #include <linux/fs.h> #include "server.h" #include "kafstimod.h" #include "cache.h" #ifdef __KERNEL__ struct afs_rxfs_fetch_descriptor; /*****************************************************************************/ /* * vnode catalogue entry */ struct afs_cache_vnode { afs_vnodeid_t vnode_id; /* vnode ID */ unsigned vnode_unique; /* vnode ID uniquifier */ afs_dataversion_t data_version; /* data version */ }; #ifdef AFS_CACHING_SUPPORT extern struct cachefs_index_def afs_vnode_cache_index_def; #endif /*****************************************************************************/ /* * AFS inode private data */ struct afs_vnode { struct inode vfs_inode; /* the VFS's inode record */ struct afs_volume *volume; /* volume on which vnode resides */ struct afs_fid fid; /* the file identifier for this inode */ struct afs_file_status status; /* AFS status info for this file */ #ifdef AFS_CACHING_SUPPORT struct cachefs_cookie *cache; /* caching cookie */ #endif wait_queue_head_t update_waitq; /* status fetch waitqueue */ unsigned update_cnt; /* number of outstanding ops that will update the * status */ spinlock_t lock; /* waitqueue/flags lock */ unsigned flags; #define AFS_VNODE_CHANGED 0x00000001 /* set if vnode reported changed by callback */ #define AFS_VNODE_DELETED 0x00000002 /* set if vnode deleted on server */ #define AFS_VNODE_MOUNTPOINT 0x00000004 /* set if vnode is a mountpoint symlink */ /* outstanding callback notification on this file */ struct afs_server *cb_server; /* server that made the current promise */ struct list_head cb_link; /* link in server's promises list */ struct list_head cb_hash_link; /* link in master callback hash */ struct afs_timer cb_timeout; /* timeout on promise */ unsigned cb_version; /* callback version */ unsigned cb_expiry; /* callback expiry time */ afs_callback_type_t cb_type; /* type of callback */ }; static inline struct afs_vnode *AFS_FS_I(struct inode *inode) { return container_of(inode,struct afs_vnode,vfs_inode); } static inline struct inode *AFS_VNODE_TO_I(struct afs_vnode *vnode) { return &vnode->vfs_inode; } extern int afs_vnode_fetch_status(struct afs_vnode *vnode); extern int afs_vnode_fetch_data(struct afs_vnode *vnode, struct afs_rxfs_fetch_descriptor *desc); extern int afs_vnode_give_up_callback(struct afs_vnode *vnode); extern struct afs_timer_ops afs_vnode_cb_timed_out_ops; #endif /* __KERNEL__ */ #endif /* _LINUX_AFS_VNODE_H */ |