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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-06-20 20:46:21 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-06-20 20:46:21 -0400
commit70ac4385a13f78bc478f26d317511893741b05bd (patch)
treedafc7f3018295fc4ee00339889e4f35d5b9d7743 /include/linux/inotify.h
parentd59bf96cdde5b874a57bfd1425faa45da915d0b7 (diff)
parent077e98945db7e54a9865b5f29a1f02f531eca414 (diff)
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/
Conflicts: include/linux/nfs_fs.h Fixed up conflict with kernel header updates.
Diffstat (limited to 'include/linux/inotify.h')
-rw-r--r--include/linux/inotify.h109
1 files changed, 106 insertions, 3 deletions
diff --git a/include/linux/inotify.h b/include/linux/inotify.h
index 09e00433c78e..d4f48c6402e6 100644
--- a/include/linux/inotify.h
+++ b/include/linux/inotify.h
@@ -67,20 +67,66 @@ struct inotify_event {
67 67
68#include <linux/dcache.h> 68#include <linux/dcache.h>
69#include <linux/fs.h> 69#include <linux/fs.h>
70#include <linux/config.h> 70
71/*
72 * struct inotify_watch - represents a watch request on a specific inode
73 *
74 * h_list is protected by ih->mutex of the associated inotify_handle.
75 * i_list, mask are protected by inode->inotify_mutex of the associated inode.
76 * ih, inode, and wd are never written to once the watch is created.
77 *
78 * Callers must use the established inotify interfaces to access inotify_watch
79 * contents. The content of this structure is private to the inotify
80 * implementation.
81 */
82struct inotify_watch {
83 struct list_head h_list; /* entry in inotify_handle's list */
84 struct list_head i_list; /* entry in inode's list */
85 atomic_t count; /* reference count */
86 struct inotify_handle *ih; /* associated inotify handle */
87 struct inode *inode; /* associated inode */
88 __s32 wd; /* watch descriptor */
89 __u32 mask; /* event mask for this watch */
90};
91
92struct inotify_operations {
93 void (*handle_event)(struct inotify_watch *, u32, u32, u32,
94 const char *, struct inode *);
95 void (*destroy_watch)(struct inotify_watch *);
96};
71 97
72#ifdef CONFIG_INOTIFY 98#ifdef CONFIG_INOTIFY
73 99
100/* Kernel API for producing events */
101
74extern void inotify_d_instantiate(struct dentry *, struct inode *); 102extern void inotify_d_instantiate(struct dentry *, struct inode *);
75extern void inotify_d_move(struct dentry *); 103extern void inotify_d_move(struct dentry *);
76extern void inotify_inode_queue_event(struct inode *, __u32, __u32, 104extern void inotify_inode_queue_event(struct inode *, __u32, __u32,
77 const char *); 105 const char *, struct inode *);
78extern void inotify_dentry_parent_queue_event(struct dentry *, __u32, __u32, 106extern void inotify_dentry_parent_queue_event(struct dentry *, __u32, __u32,
79 const char *); 107 const char *);
80extern void inotify_unmount_inodes(struct list_head *); 108extern void inotify_unmount_inodes(struct list_head *);
81extern void inotify_inode_is_dead(struct inode *); 109extern void inotify_inode_is_dead(struct inode *);
82extern u32 inotify_get_cookie(void); 110extern u32 inotify_get_cookie(void);
83 111
112/* Kernel Consumer API */
113
114extern struct inotify_handle *inotify_init(const struct inotify_operations *);
115extern void inotify_init_watch(struct inotify_watch *);
116extern void inotify_destroy(struct inotify_handle *);
117extern __s32 inotify_find_watch(struct inotify_handle *, struct inode *,
118 struct inotify_watch **);
119extern __s32 inotify_find_update_watch(struct inotify_handle *, struct inode *,
120 u32);
121extern __s32 inotify_add_watch(struct inotify_handle *, struct inotify_watch *,
122 struct inode *, __u32);
123extern int inotify_rm_watch(struct inotify_handle *, struct inotify_watch *);
124extern int inotify_rm_wd(struct inotify_handle *, __u32);
125extern void inotify_remove_watch_locked(struct inotify_handle *,
126 struct inotify_watch *);
127extern void get_inotify_watch(struct inotify_watch *);
128extern void put_inotify_watch(struct inotify_watch *);
129
84#else 130#else
85 131
86static inline void inotify_d_instantiate(struct dentry *dentry, 132static inline void inotify_d_instantiate(struct dentry *dentry,
@@ -94,7 +140,8 @@ static inline void inotify_d_move(struct dentry *dentry)
94 140
95static inline void inotify_inode_queue_event(struct inode *inode, 141static inline void inotify_inode_queue_event(struct inode *inode,
96 __u32 mask, __u32 cookie, 142 __u32 mask, __u32 cookie,
97 const char *filename) 143 const char *filename,
144 struct inode *n_inode)
98{ 145{
99} 146}
100 147
@@ -117,6 +164,62 @@ static inline u32 inotify_get_cookie(void)
117 return 0; 164 return 0;
118} 165}
119 166
167static inline struct inotify_handle *inotify_init(const struct inotify_operations *ops)
168{
169 return ERR_PTR(-EOPNOTSUPP);
170}
171
172static inline void inotify_init_watch(struct inotify_watch *watch)
173{
174}
175
176static inline void inotify_destroy(struct inotify_handle *ih)
177{
178}
179
180static inline __s32 inotify_find_watch(struct inotify_handle *ih, struct inode *inode,
181 struct inotify_watch **watchp)
182{
183 return -EOPNOTSUPP;
184}
185
186static inline __s32 inotify_find_update_watch(struct inotify_handle *ih,
187 struct inode *inode, u32 mask)
188{
189 return -EOPNOTSUPP;
190}
191
192static inline __s32 inotify_add_watch(struct inotify_handle *ih,
193 struct inotify_watch *watch,
194 struct inode *inode, __u32 mask)
195{
196 return -EOPNOTSUPP;
197}
198
199static inline int inotify_rm_watch(struct inotify_handle *ih,
200 struct inotify_watch *watch)
201{
202 return -EOPNOTSUPP;
203}
204
205static inline int inotify_rm_wd(struct inotify_handle *ih, __u32 wd)
206{
207 return -EOPNOTSUPP;
208}
209
210static inline void inotify_remove_watch_locked(struct inotify_handle *ih,
211 struct inotify_watch *watch)
212{
213}
214
215static inline void get_inotify_watch(struct inotify_watch *watch)
216{
217}
218
219static inline void put_inotify_watch(struct inotify_watch *watch)
220{
221}
222
120#endif /* CONFIG_INOTIFY */ 223#endif /* CONFIG_INOTIFY */
121 224
122#endif /* __KERNEL __ */ 225#endif /* __KERNEL __ */