1/* 
  2 * Coda File System, Linux Kernel module
  3 * 
  4 * Original version, adapted from cfs_mach.c, (C) Carnegie Mellon University
  5 * Linux modifications (C) 1996, Peter J. Braam
  6 * Rewritten for Linux 2.1 (C) 1997 Carnegie Mellon University
  7 *
  8 * Carnegie Mellon University encourages users of this software to
  9 * contribute improvements to the Coda project.
 10 */
 11
 12#ifndef _LINUX_CODA_FS
 13#define _LINUX_CODA_FS
 14
 15#ifdef pr_fmt
 16#undef pr_fmt
 17#endif
 18
 19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 20
 21#include <linux/kernel.h>
 22#include <linux/param.h>
 23#include <linux/mm.h>
 24#include <linux/vmalloc.h>
 25#include <linux/slab.h>
 26#include <linux/wait.h>		
 27#include <linux/types.h>
 28#include <linux/fs.h>
 29#include "coda_fs_i.h"
 30
 31/* operations */
 32extern const struct inode_operations coda_dir_inode_operations;
 33extern const struct inode_operations coda_file_inode_operations;
 34extern const struct inode_operations coda_ioctl_inode_operations;
 35
 36extern const struct dentry_operations coda_dentry_operations;
 37
 38extern const struct address_space_operations coda_file_aops;
 39extern const struct address_space_operations coda_symlink_aops;
 40
 41extern const struct file_operations coda_dir_operations;
 42extern const struct file_operations coda_file_operations;
 43extern const struct file_operations coda_ioctl_operations;
 44
 45/* operations shared over more than one file */
 46int coda_open(struct inode *i, struct file *f);
 47int coda_release(struct inode *i, struct file *f);
 48int coda_permission(struct inode *inode, int mask);
 49int coda_revalidate_inode(struct inode *);
 50int coda_getattr(struct vfsmount *, struct dentry *, struct kstat *);
 51int coda_setattr(struct dentry *, struct iattr *);
 52
 53/* this file:  heloers */
 54char *coda_f2s(struct CodaFid *f);
 55int coda_iscontrol(const char *name, size_t length);
 56
 57void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
 58void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
 59unsigned short coda_flags_to_cflags(unsigned short);
 60
 61/* sysctl.h */
 62void coda_sysctl_init(void);
 63void coda_sysctl_clean(void);
 64
 65#define CODA_ALLOC(ptr, cast, size) do { \
 66    if (size < PAGE_SIZE) \
 67        ptr = kzalloc((unsigned long) size, GFP_KERNEL); \
 68    else \
 69        ptr = (cast)vzalloc((unsigned long) size); \
 70    if (!ptr) \
 71	pr_warn("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \
 72} while (0)
 73
 74
 75#define CODA_FREE(ptr, size) kvfree((ptr))
 76
 77/* inode to cnode access functions */
 78
 79static inline struct coda_inode_info *ITOC(struct inode *inode)
 80{
 81	return container_of(inode, struct coda_inode_info, vfs_inode);
 82}
 83
 84static __inline__ struct CodaFid *coda_i2f(struct inode *inode)
 85{
 86	return &(ITOC(inode)->c_fid);
 87}
 88
 89static __inline__ char *coda_i2s(struct inode *inode)
 90{
 91	return coda_f2s(&(ITOC(inode)->c_fid));
 92}
 93
 94/* this will not zap the inode away */
 95static __inline__ void coda_flag_inode(struct inode *inode, int flag)
 96{
 97	struct coda_inode_info *cii = ITOC(inode);
 98
 99	spin_lock(&cii->c_lock);
100	cii->c_flags |= flag;
101	spin_unlock(&cii->c_lock);
102}		
103
104#endif

 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 inode *inode, int mask);
50int coda_revalidate_inode(struct inode *);
51int coda_getattr(const struct path *, struct kstat *, u32, unsigned int);
52int coda_setattr(struct dentry *, struct iattr *);
53
54/* this file:  heloers */
55char *coda_f2s(struct CodaFid *f);
56int coda_iscontrol(const char *name, size_t length);
57
58void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
59void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
60unsigned short coda_flags_to_cflags(unsigned short);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
61
62/* inode to cnode access functions */
63
64static inline struct coda_inode_info *ITOC(struct inode *inode)
65{
66	return container_of(inode, struct coda_inode_info, vfs_inode);
67}
68
69static __inline__ struct CodaFid *coda_i2f(struct inode *inode)
70{
71	return &(ITOC(inode)->c_fid);
72}
73
74static __inline__ char *coda_i2s(struct inode *inode)
75{
76	return coda_f2s(&(ITOC(inode)->c_fid));
77}
78
79/* this will not zap the inode away */
80static __inline__ void coda_flag_inode(struct inode *inode, int flag)
81{
82	struct coda_inode_info *cii = ITOC(inode);
83
84	spin_lock(&cii->c_lock);
85	cii->c_flags |= flag;
86	spin_unlock(&cii->c_lock);
87}		
88
89#endif