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1da177e4 LT |
1 | /* internal.h: internal AFS stuff |
2 | * | |
3 | * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #ifndef AFS_INTERNAL_H | |
13 | #define AFS_INTERNAL_H | |
14 | ||
15 | #include <linux/compiler.h> | |
16 | #include <linux/kernel.h> | |
17 | #include <linux/fs.h> | |
18 | #include <linux/pagemap.h> | |
19 | ||
20 | /* | |
21 | * debug tracing | |
22 | */ | |
23 | #define kenter(FMT, a...) printk("==> %s("FMT")\n",__FUNCTION__ , ## a) | |
24 | #define kleave(FMT, a...) printk("<== %s()"FMT"\n",__FUNCTION__ , ## a) | |
25 | #define kdebug(FMT, a...) printk(FMT"\n" , ## a) | |
26 | #define kproto(FMT, a...) printk("### "FMT"\n" , ## a) | |
27 | #define knet(FMT, a...) printk(FMT"\n" , ## a) | |
28 | ||
29 | #ifdef __KDEBUG | |
30 | #define _enter(FMT, a...) kenter(FMT , ## a) | |
31 | #define _leave(FMT, a...) kleave(FMT , ## a) | |
32 | #define _debug(FMT, a...) kdebug(FMT , ## a) | |
33 | #define _proto(FMT, a...) kproto(FMT , ## a) | |
34 | #define _net(FMT, a...) knet(FMT , ## a) | |
35 | #else | |
36 | #define _enter(FMT, a...) do { } while(0) | |
37 | #define _leave(FMT, a...) do { } while(0) | |
38 | #define _debug(FMT, a...) do { } while(0) | |
39 | #define _proto(FMT, a...) do { } while(0) | |
40 | #define _net(FMT, a...) do { } while(0) | |
41 | #endif | |
42 | ||
43 | static inline void afs_discard_my_signals(void) | |
44 | { | |
45 | while (signal_pending(current)) { | |
46 | siginfo_t sinfo; | |
47 | ||
48 | spin_lock_irq(¤t->sighand->siglock); | |
49 | dequeue_signal(current,¤t->blocked, &sinfo); | |
50 | spin_unlock_irq(¤t->sighand->siglock); | |
51 | } | |
52 | } | |
53 | ||
54 | /* | |
55 | * cell.c | |
56 | */ | |
57 | extern struct rw_semaphore afs_proc_cells_sem; | |
58 | extern struct list_head afs_proc_cells; | |
59 | #ifdef AFS_CACHING_SUPPORT | |
60 | extern struct cachefs_index_def afs_cache_cell_index_def; | |
61 | #endif | |
62 | ||
63 | /* | |
64 | * dir.c | |
65 | */ | |
66 | extern struct inode_operations afs_dir_inode_operations; | |
67 | extern struct file_operations afs_dir_file_operations; | |
68 | ||
69 | /* | |
70 | * file.c | |
71 | */ | |
72 | extern struct address_space_operations afs_fs_aops; | |
73 | extern struct inode_operations afs_file_inode_operations; | |
74 | extern struct file_operations afs_file_file_operations; | |
75 | ||
76 | #ifdef AFS_CACHING_SUPPORT | |
77 | extern int afs_cache_get_page_cookie(struct page *page, | |
78 | struct cachefs_page **_page_cookie); | |
79 | #endif | |
80 | ||
81 | /* | |
82 | * inode.c | |
83 | */ | |
84 | extern int afs_iget(struct super_block *sb, struct afs_fid *fid, | |
85 | struct inode **_inode); | |
86 | extern int afs_inode_getattr(struct vfsmount *mnt, struct dentry *dentry, | |
87 | struct kstat *stat); | |
88 | extern void afs_clear_inode(struct inode *inode); | |
89 | ||
90 | /* | |
91 | * key_afs.c | |
92 | */ | |
93 | #ifdef CONFIG_KEYS | |
94 | extern int afs_key_register(void); | |
95 | extern void afs_key_unregister(void); | |
96 | #endif | |
97 | ||
98 | /* | |
99 | * main.c | |
100 | */ | |
101 | #ifdef AFS_CACHING_SUPPORT | |
102 | extern struct cachefs_netfs afs_cache_netfs; | |
103 | #endif | |
104 | ||
105 | /* | |
106 | * mntpt.c | |
107 | */ | |
108 | extern struct inode_operations afs_mntpt_inode_operations; | |
109 | extern struct file_operations afs_mntpt_file_operations; | |
110 | extern struct afs_timer afs_mntpt_expiry_timer; | |
111 | extern struct afs_timer_ops afs_mntpt_expiry_timer_ops; | |
112 | extern unsigned long afs_mntpt_expiry_timeout; | |
113 | ||
114 | extern int afs_mntpt_check_symlink(struct afs_vnode *vnode); | |
115 | ||
116 | /* | |
117 | * super.c | |
118 | */ | |
119 | extern int afs_fs_init(void); | |
120 | extern void afs_fs_exit(void); | |
121 | ||
122 | #define AFS_CB_HASH_COUNT (PAGE_SIZE / sizeof(struct list_head)) | |
123 | ||
124 | extern struct list_head afs_cb_hash_tbl[]; | |
125 | extern spinlock_t afs_cb_hash_lock; | |
126 | ||
127 | #define afs_cb_hash(SRV,FID) \ | |
128 | afs_cb_hash_tbl[((unsigned long)(SRV) + \ | |
129 | (FID)->vid + (FID)->vnode + (FID)->unique) % \ | |
130 | AFS_CB_HASH_COUNT] | |
131 | ||
132 | /* | |
133 | * proc.c | |
134 | */ | |
135 | extern int afs_proc_init(void); | |
136 | extern void afs_proc_cleanup(void); | |
137 | extern int afs_proc_cell_setup(struct afs_cell *cell); | |
138 | extern void afs_proc_cell_remove(struct afs_cell *cell); | |
139 | ||
140 | #endif /* AFS_INTERNAL_H */ |