1/*
 2 *  coda_fs_i.h
 3 *
 4 *  Copyright (C) 1998 Carnegie Mellon University
 5 *
 6 */
 7
 8#ifndef _LINUX_CODA_FS_I
 9#define _LINUX_CODA_FS_I
10
11#include <linux/types.h>
12#include <linux/list.h>
13#include <linux/spinlock.h>
14#include <linux/coda.h>
15
16/*
17 * coda fs inode data
18 * c_lock protects accesses to c_flags, c_mapcount, c_cached_epoch, c_uid and
19 * c_cached_perm.
20 * vfs_inode is set only when the inode is created and never changes.
21 * c_fid is set when the inode is created and should be considered immutable.
22 */
23struct coda_inode_info {
24	struct CodaFid	   c_fid;	/* Coda identifier */
25	u_short	           c_flags;     /* flags (see below) */
26	unsigned int	   c_mapcount;  /* nr of times this inode is mapped */
27	unsigned int	   c_cached_epoch; /* epoch for cached permissions */
28	vuid_t		   c_uid;	/* fsuid for cached permissions */
29	unsigned int       c_cached_perm; /* cached access permissions */
30	spinlock_t	   c_lock;
31	struct inode	   vfs_inode;
32};
33
34/*
35 * coda fs file private data
36 */
37#define CODA_MAGIC 0xC0DAC0DA
38struct coda_file_info {
39	int		   cfi_magic;	  /* magic number */
40	struct file	  *cfi_container; /* container file for this cnode */
41	unsigned int	   cfi_mapcount;  /* nr of times this file is mapped */
 
42};
43
44#define CODA_FTOC(file) ((struct coda_file_info *)((file)->private_data))
45
46/* flags */
47#define C_VATTR       0x1   /* Validity of vattr in inode */
48#define C_FLUSH       0x2   /* used after a flush */
49#define C_DYING       0x4   /* from venus (which died) */
50#define C_PURGE       0x8
51
52int coda_cnode_make(struct inode **, struct CodaFid *, struct super_block *);
53struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
54int coda_cnode_makectl(struct inode **inode, struct super_block *sb);
55struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
 
56void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
57
58#endif

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 *  coda_fs_i.h
 4 *
 5 *  Copyright (C) 1998 Carnegie Mellon University
 6 *
 7 */
 8
 9#ifndef _LINUX_CODA_FS_I
10#define _LINUX_CODA_FS_I
11
12#include <linux/types.h>
13#include <linux/list.h>
14#include <linux/spinlock.h>
15#include <linux/coda.h>
16
17/*
18 * coda fs inode data
19 * c_lock protects accesses to c_flags, c_mapcount, c_cached_epoch, c_uid and
20 * c_cached_perm.
21 * vfs_inode is set only when the inode is created and never changes.
22 * c_fid is set when the inode is created and should be considered immutable.
23 */
24struct coda_inode_info {
25	struct CodaFid	   c_fid;	/* Coda identifier */
26	u_short	           c_flags;     /* flags (see below) */
27	unsigned int	   c_mapcount;  /* nr of times this inode is mapped */
28	unsigned int	   c_cached_epoch; /* epoch for cached permissions */
29	kuid_t		   c_uid;	/* fsuid for cached permissions */
30	unsigned int       c_cached_perm; /* cached access permissions */
31	spinlock_t	   c_lock;
32	struct inode	   vfs_inode;
33};
34
35/*
36 * coda fs file private data
37 */
38#define CODA_MAGIC 0xC0DAC0DA
39struct coda_file_info {
40	int		   cfi_magic;	  /* magic number */
41	struct file	  *cfi_container; /* container file for this cnode */
42	unsigned int	   cfi_mapcount;  /* nr of times this file is mapped */
43	bool		   cfi_access_intent; /* is access intent supported */
44};
45
 
 
46/* flags */
47#define C_VATTR       0x1   /* Validity of vattr in inode */
48#define C_FLUSH       0x2   /* used after a flush */
49#define C_DYING       0x4   /* from venus (which died) */
50#define C_PURGE       0x8
51
52struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
53struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
54struct inode *coda_cnode_makectl(struct super_block *sb);
55struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
56struct coda_file_info *coda_ftoc(struct file *file);
57void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
58
59#endif