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 */ |
33 | extern const struct inode_operations coda_dir_inode_operations; |
34 | extern const struct inode_operations coda_file_inode_operations; |
35 | extern const struct inode_operations coda_ioctl_inode_operations; |
36 | |
37 | extern const struct dentry_operations coda_dentry_operations; |
38 | |
39 | extern const struct address_space_operations coda_file_aops; |
40 | extern const struct address_space_operations coda_symlink_aops; |
41 | |
42 | extern const struct file_operations coda_dir_operations; |
43 | extern const struct file_operations coda_file_operations; |
44 | extern const struct file_operations coda_ioctl_operations; |
45 | |
46 | /* operations shared over more than one file */ |
47 | int coda_open(struct inode *i, struct file *f); |
48 | int coda_release(struct inode *i, struct file *f); |
49 | int coda_permission(struct mnt_idmap *idmap, struct inode *inode, |
50 | int mask); |
51 | int coda_revalidate_inode(struct inode *); |
52 | int coda_getattr(struct mnt_idmap *, const struct path *, struct kstat *, |
53 | u32, unsigned int); |
54 | int coda_setattr(struct mnt_idmap *, struct dentry *, struct iattr *); |
55 | |
56 | /* this file: helpers */ |
57 | char *coda_f2s(struct CodaFid *f); |
58 | int coda_iscontrol(const char *name, size_t length); |
59 | |
60 | umode_t coda_inode_type(struct coda_vattr *attr); |
61 | void coda_vattr_to_iattr(struct inode *, struct coda_vattr *); |
62 | void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *); |
63 | unsigned short coda_flags_to_cflags(unsigned short); |
64 | |
65 | /* inode to cnode access functions */ |
66 | |
67 | static inline struct coda_inode_info *ITOC(struct inode *inode) |
68 | { |
69 | return container_of(inode, struct coda_inode_info, vfs_inode); |
70 | } |
71 | |
72 | static __inline__ struct CodaFid *coda_i2f(struct inode *inode) |
73 | { |
74 | return &(ITOC(inode)->c_fid); |
75 | } |
76 | |
77 | static __inline__ char *coda_i2s(struct inode *inode) |
78 | { |
79 | return coda_f2s(f: &(ITOC(inode)->c_fid)); |
80 | } |
81 | |
82 | /* this will not zap the inode away */ |
83 | static __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(lock: &cii->c_lock); |
91 | cii->c_flags |= flag; |
92 | spin_unlock(lock: &cii->c_lock); |
93 | } |
94 | |
95 | #endif |
96 | |