coda_fs_i.h
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上传日期:2009-04-28
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- /*
- * coda_fs_i.h
- *
- * Copyright (C) 1998 Carnegie Mellon University
- *
- */
- #ifndef _LINUX_CODA_FS_I
- #define _LINUX_CODA_FS_I
- #ifdef __KERNEL__
- #include <linux/types.h>
- #include <linux/list.h>
- #include <linux/coda.h>
- /*
- * coda fs inode data
- */
- struct coda_inode_info {
- struct CodaFid c_fid; /* Coda identifier */
- u_short c_flags; /* flags (see below) */
- struct list_head c_cilist; /* list of all coda inodes */
- 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 */
- 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
- #endif