proc: introduce proc_create_single{,_data}

[linux-2.6-block.git] / include / linux / proc_fs.h

diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 928ef9e4d912513bcee0b366f4cf781d534d55cd..2529b871f379b15d62f0151c6ee875683ad872ae 100644 (file)
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -9,6 +9,8 @@
 #include <linux/fs.h>
 
 struct proc_dir_entry;
+struct seq_file;
+struct seq_operations;
 
 #ifdef CONFIG_PROC_FS
 
@@ -23,6 +25,19 @@ extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
 extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
                                              struct proc_dir_entry *);
 struct proc_dir_entry *proc_create_mount_point(const char *name);
+
+struct proc_dir_entry *proc_create_seq_private(const char *name, umode_t mode,
+               struct proc_dir_entry *parent, const struct seq_operations *ops,
+               unsigned int state_size, void *data);
+#define proc_create_seq_data(name, mode, parent, ops, data) \
+       proc_create_seq_private(name, mode, parent, ops, 0, data)
+#define proc_create_seq(name, mode, parent, ops) \
+       proc_create_seq_private(name, mode, parent, ops, 0, NULL)
+struct proc_dir_entry *proc_create_single_data(const char *name, umode_t mode,
+               struct proc_dir_entry *parent,
+               int (*show)(struct seq_file *, void *), void *data);
+#define proc_create_single(name, mode, parent, show) \
+       proc_create_single_data(name, mode, parent, show, NULL)
  
 extern struct proc_dir_entry *proc_create_data(const char *, umode_t,
                                               struct proc_dir_entry *,
@@ -57,6 +72,11 @@ static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
        umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
 static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
        umode_t mode, struct proc_dir_entry *parent) { return NULL; }
+#define proc_create_seq_private(name, mode, parent, ops, size, data) ({NULL;})
+#define proc_create_seq_data(name, mode, parent, ops, data) ({NULL;})
+#define proc_create_seq(name, mode, parent, ops) ({NULL;})
+#define proc_create_single(name, mode, parent, show) ({NULL;})
+#define proc_create_single_data(name, mode, parent, show, data) ({NULL;})
 #define proc_create(name, mode, parent, proc_fops) ({NULL;})
 #define proc_create_data(name, mode, parent, proc_fops, data) ({NULL;})
 
@@ -83,4 +103,10 @@ struct ns_common;
 int open_related_ns(struct ns_common *ns,
                   struct ns_common *(*get_ns)(struct ns_common *ns));
 
+/* get the associated pid namespace for a file in procfs */
+static inline struct pid_namespace *proc_pid_ns(struct inode *inode)
+{
+       return inode->i_sb->s_fs_info;
+}
+
 #endif /* _LINUX_PROC_FS_H */