mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/*
|
|
* 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
|
|
|
|
struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
|
|
struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
|
|
struct inode *coda_cnode_makectl(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
|