/* * coda_fs_i.h * * Copyright (C) 1998 Carnegie Mellon University * */ #ifndef _LINUX_CODA_FS_I #define _LINUX_CODA_FS_I #include <linux/types.h> #include <linux/list.h> #include <linux/spinlock.h> #include <linux/coda.h> /* * coda fs inode data * c_lock protects accesses to c_flags, c_mapcount, c_cached_epoch, c_uid and * c_cached_perm. * vfs_inode is set only when the inode is created and never changes. * c_fid is set when the inode is created and should be considered immutable. */ struct coda_inode_info { struct CodaFid c_fid; /* Coda identifier */ u_short c_flags; /* flags (see below) */ unsigned int c_mapcount; /* nr of times this inode is mapped */ unsigned int c_cached_epoch; /* epoch for cached permissions */ vuid_t c_uid; /* fsuid for cached permissions */ unsigned int c_cached_perm; /* cached access permissions */ spinlock_t c_lock; struct inode vfs_inode; }; /* * coda fs file private data */ #define CODA_MAGIC 0xC0DAC0DA struct coda_file_info { int cfi_magic; /* magic number */ struct file *cfi_container; /* container file for this cnode */ unsigned int cfi_mapcount; /* nr of times this file is mapped */ }; #define CODA_FTOC(file) ((struct coda_file_info *)((file)->private_data)) /* flags */ #define C_VATTR 0x1 /* Validity of vattr in inode */ #define C_FLUSH 0x2 /* used after a flush */ #define C_DYING 0x4 /* from venus (which died) */ #define C_PURGE 0x8 int coda_cnode_make(struct inode **, struct CodaFid *, struct super_block *); struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr); int coda_cnode_makectl(struct inode **inode, struct super_block *sb); struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb); void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *); #endif