1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Coda File System, Linux Kernel module
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Original version, adapted from cfs_mach.c, (C) Carnegie Mellon University
6*4882a593Smuzhiyun * Linux modifications (C) 1996, Peter J. Braam
7*4882a593Smuzhiyun * Rewritten for Linux 2.1 (C) 1997 Carnegie Mellon University
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * Carnegie Mellon University encourages users of this software to
10*4882a593Smuzhiyun * contribute improvements to the Coda project.
11*4882a593Smuzhiyun */
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #ifndef _LINUX_CODA_FS
14*4882a593Smuzhiyun #define _LINUX_CODA_FS
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #ifdef pr_fmt
17*4882a593Smuzhiyun #undef pr_fmt
18*4882a593Smuzhiyun #endif
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #include <linux/kernel.h>
23*4882a593Smuzhiyun #include <linux/param.h>
24*4882a593Smuzhiyun #include <linux/mm.h>
25*4882a593Smuzhiyun #include <linux/vmalloc.h>
26*4882a593Smuzhiyun #include <linux/slab.h>
27*4882a593Smuzhiyun #include <linux/wait.h>
28*4882a593Smuzhiyun #include <linux/types.h>
29*4882a593Smuzhiyun #include <linux/fs.h>
30*4882a593Smuzhiyun #include "coda_fs_i.h"
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun /* operations */
33*4882a593Smuzhiyun extern const struct inode_operations coda_dir_inode_operations;
34*4882a593Smuzhiyun extern const struct inode_operations coda_file_inode_operations;
35*4882a593Smuzhiyun extern const struct inode_operations coda_ioctl_inode_operations;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun extern const struct dentry_operations coda_dentry_operations;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun extern const struct address_space_operations coda_file_aops;
40*4882a593Smuzhiyun extern const struct address_space_operations coda_symlink_aops;
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun extern const struct file_operations coda_dir_operations;
43*4882a593Smuzhiyun extern const struct file_operations coda_file_operations;
44*4882a593Smuzhiyun extern const struct file_operations coda_ioctl_operations;
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun /* operations shared over more than one file */
47*4882a593Smuzhiyun int coda_open(struct inode *i, struct file *f);
48*4882a593Smuzhiyun int coda_release(struct inode *i, struct file *f);
49*4882a593Smuzhiyun int coda_permission(struct inode *inode, int mask);
50*4882a593Smuzhiyun int coda_revalidate_inode(struct inode *);
51*4882a593Smuzhiyun int coda_getattr(const struct path *, struct kstat *, u32, unsigned int);
52*4882a593Smuzhiyun int coda_setattr(struct dentry *, struct iattr *);
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun /* this file: heloers */
55*4882a593Smuzhiyun char *coda_f2s(struct CodaFid *f);
56*4882a593Smuzhiyun int coda_iscontrol(const char *name, size_t length);
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
59*4882a593Smuzhiyun void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
60*4882a593Smuzhiyun unsigned short coda_flags_to_cflags(unsigned short);
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun /* inode to cnode access functions */
63*4882a593Smuzhiyun
ITOC(struct inode * inode)64*4882a593Smuzhiyun static inline struct coda_inode_info *ITOC(struct inode *inode)
65*4882a593Smuzhiyun {
66*4882a593Smuzhiyun return container_of(inode, struct coda_inode_info, vfs_inode);
67*4882a593Smuzhiyun }
68*4882a593Smuzhiyun
coda_i2f(struct inode * inode)69*4882a593Smuzhiyun static __inline__ struct CodaFid *coda_i2f(struct inode *inode)
70*4882a593Smuzhiyun {
71*4882a593Smuzhiyun return &(ITOC(inode)->c_fid);
72*4882a593Smuzhiyun }
73*4882a593Smuzhiyun
coda_i2s(struct inode * inode)74*4882a593Smuzhiyun static __inline__ char *coda_i2s(struct inode *inode)
75*4882a593Smuzhiyun {
76*4882a593Smuzhiyun return coda_f2s(&(ITOC(inode)->c_fid));
77*4882a593Smuzhiyun }
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun /* this will not zap the inode away */
coda_flag_inode(struct inode * inode,int flag)80*4882a593Smuzhiyun static __inline__ void coda_flag_inode(struct inode *inode, int flag)
81*4882a593Smuzhiyun {
82*4882a593Smuzhiyun struct coda_inode_info *cii = ITOC(inode);
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun spin_lock(&cii->c_lock);
85*4882a593Smuzhiyun cii->c_flags |= flag;
86*4882a593Smuzhiyun spin_unlock(&cii->c_lock);
87*4882a593Smuzhiyun }
88*4882a593Smuzhiyun
89*4882a593Smuzhiyun #endif
90