1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Coda File System, Linux Kernel module
4 *
5 * Original version, adapted from cfs_mach.c, (C) Carnegie Mellon University
6 * Linux modifications (C) 1996, Peter J. Braam
7 * Rewritten for Linux 2.1 (C) 1997 Carnegie Mellon University
8 *
9 * Carnegie Mellon University encourages users of this software to
10 * contribute improvements to the Coda project.
11 */
12
13#ifndef _LINUX_CODA_FS
14#define _LINUX_CODA_FS
15
16#ifdef pr_fmt
17#undef pr_fmt
18#endif
19
20#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22#include <linux/kernel.h>
23#include <linux/param.h>
24#include <linux/mm.h>
25#include <linux/vmalloc.h>
26#include <linux/slab.h>
27#include <linux/wait.h>
28#include <linux/types.h>
29#include <linux/fs.h>
30#include "coda_fs_i.h"
31
32/* operations */
33extern const struct inode_operations coda_dir_inode_operations;
34extern const struct inode_operations coda_file_inode_operations;
35extern const struct inode_operations coda_ioctl_inode_operations;
36
37extern const struct dentry_operations coda_dentry_operations;
38
39extern const struct address_space_operations coda_file_aops;
40extern const struct address_space_operations coda_symlink_aops;
41
42extern const struct file_operations coda_dir_operations;
43extern const struct file_operations coda_file_operations;
44extern const struct file_operations coda_ioctl_operations;
45
46/* operations shared over more than one file */
47int coda_open(struct inode *i, struct file *f);
48int coda_release(struct inode *i, struct file *f);
49int coda_permission(struct mnt_idmap *idmap, struct inode *inode,
50		    int mask);
51int coda_revalidate_inode(struct inode *);
52int coda_getattr(struct mnt_idmap *, const struct path *, struct kstat *,
53		 u32, unsigned int);
54int coda_setattr(struct mnt_idmap *, struct dentry *, struct iattr *);
55
56/* this file:  helpers */
57char *coda_f2s(struct CodaFid *f);
58int coda_iscontrol(const char *name, size_t length);
59
60umode_t coda_inode_type(struct coda_vattr *attr);
61void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
62void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
63unsigned short coda_flags_to_cflags(unsigned short);
64
65/* inode to cnode access functions */
66
67static inline struct coda_inode_info *ITOC(struct inode *inode)
68{
69	return container_of(inode, struct coda_inode_info, vfs_inode);
70}
71
72static __inline__ struct CodaFid *coda_i2f(struct inode *inode)
73{
74	return &(ITOC(inode)->c_fid);
75}
76
77static __inline__ char *coda_i2s(struct inode *inode)
78{
79	return coda_f2s(&(ITOC(inode)->c_fid));
80}
81
82/* this will not zap the inode away */
83static __inline__ void coda_flag_inode(struct inode *inode, int flag)
84{
85	struct coda_inode_info *cii = ITOC(inode);
86
87	if (!inode)
88		return;
89
90	spin_lock(&cii->c_lock);
91	cii->c_flags |= flag;
92	spin_unlock(&cii->c_lock);
93}
94
95#endif
96