fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / linux / sysfs.h

diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index de20839..937c1c0 100644 (file)
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -2,6 +2,7 @@
  * sysfs.h - definitions for the device driver filesystem
  *
  * Copyright (c) 2001,2002 Patrick Mochel
+ * Copyright (c) 2004 Silicon Graphics, Inc.
  *
  * Please see Documentation/filesystems/sysfs.txt for more information.
  */
@@ -9,26 +10,57 @@
 #ifndef _SYSFS_H_
 #define _SYSFS_H_
 
+#include <linux/compiler.h>
+#include <asm/atomic.h>
+
+#define SYSFS_SUPER_MAGIC      0x62656572
+
 struct kobject;
 struct module;
 
 struct attribute {
-       char                    * name;
+       const char              * name;
        struct module           * owner;
        mode_t                  mode;
 };
 
 struct attribute_group {
-       char                    * name;
+       const char              * name;
        struct attribute        ** attrs;
 };
 
 
+
+/**
+ * Use these macros to make defining attributes easier. See include/linux/device.h
+ * for examples..
+ */
+
+#define __ATTR(_name,_mode,_show,_store) { \
+       .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE },     \
+       .show   = _show,                                        \
+       .store  = _store,                                       \
+}
+
+#define __ATTR_RO(_name) { \
+       .attr   = { .name = __stringify(_name), .mode = 0444, .owner = THIS_MODULE },   \
+       .show   = _name##_show, \
+}
+
+#define __ATTR_NULL { .attr = { .name = NULL } }
+
+#define attr_name(_attr) (_attr).attr.name
+
+struct vm_area_struct;
+
 struct bin_attribute {
        struct attribute        attr;
        size_t                  size;
+       void                    *private;
        ssize_t (*read)(struct kobject *, char *, loff_t, size_t);
        ssize_t (*write)(struct kobject *, char *, loff_t, size_t);
+       int (*mmap)(struct kobject *, struct bin_attribute *attr,
+                   struct vm_area_struct *vma);
 };
 
 struct sysfs_ops {
@@ -36,37 +68,67 @@ struct sysfs_ops {
        ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);
 };
 
+struct sysfs_dirent {
+       atomic_t                s_count;
+       struct list_head        s_sibling;
+       struct list_head        s_children;
+       void                    * s_element;
+       int                     s_type;
+       umode_t                 s_mode;
+       struct dentry           * s_dentry;
+       struct iattr            * s_iattr;
+       atomic_t                s_event;
+};
+
+#define SYSFS_ROOT             0x0001
+#define SYSFS_DIR              0x0002
+#define SYSFS_KOBJ_ATTR        0x0004
+#define SYSFS_KOBJ_BIN_ATTR    0x0008
+#define SYSFS_KOBJ_LINK        0x0020
+#define SYSFS_NOT_PINNED       (SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR | SYSFS_KOBJ_LINK)
+
 #ifdef CONFIG_SYSFS
 
-extern int
+extern int __must_check
 sysfs_create_dir(struct kobject *);
 
 extern void
 sysfs_remove_dir(struct kobject *);
 
-extern void
+extern int __must_check
 sysfs_rename_dir(struct kobject *, const char *new_name);
 
-extern int
+extern int __must_check
+sysfs_move_dir(struct kobject *, struct kobject *);
+
+extern int __must_check
 sysfs_create_file(struct kobject *, const struct attribute *);
 
-extern int
+extern int __must_check
 sysfs_update_file(struct kobject *, const struct attribute *);
 
+extern int __must_check
+sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode);
+
 extern void
 sysfs_remove_file(struct kobject *, const struct attribute *);
 
-extern int 
-sysfs_create_link(struct kobject * kobj, struct kobject * target, char * name);
+extern int __must_check
+sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name);
 
 extern void
-sysfs_remove_link(struct kobject *, char * name);
+sysfs_remove_link(struct kobject *, const char * name);
 
-int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr);
-int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr);
+int __must_check sysfs_create_bin_file(struct kobject *kobj,
+                                       struct bin_attribute *attr);
+void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr);
 
-int sysfs_create_group(struct kobject *, const struct attribute_group *);
+int __must_check sysfs_create_group(struct kobject *,
+                                       const struct attribute_group *);
 void sysfs_remove_group(struct kobject *, const struct attribute_group *);
+void sysfs_notify(struct kobject * k, char *dir, char *attr);
+
+extern int __must_check sysfs_init(void);
 
 #else /* CONFIG_SYSFS */
 
@@ -80,9 +142,14 @@ static inline void sysfs_remove_dir(struct kobject * k)
        ;
 }
 
-static inline void sysfs_rename_dir(struct kobject * k, const char *new_name)
+static inline int sysfs_rename_dir(struct kobject * k, const char *new_name)
 {
-       ;
+       return 0;
+}
+
+static inline int sysfs_move_dir(struct kobject * k, struct kobject * new_parent)
+{
+       return 0;
 }
 
 static inline int sysfs_create_file(struct kobject * k, const struct attribute * a)
@@ -94,18 +161,22 @@ static inline int sysfs_update_file(struct kobject * k, const struct attribute *
 {
        return 0;
 }
+static inline int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode)
+{
+       return 0;
+}
 
 static inline void sysfs_remove_file(struct kobject * k, const struct attribute * a)
 {
        ;
 }
 
-static inline int sysfs_create_link(struct kobject * k, struct kobject * t, char * n)
+static inline int sysfs_create_link(struct kobject * k, struct kobject * t, const char * n)
 {
        return 0;
 }
 
-static inline void sysfs_remove_link(struct kobject * k, char * name)
+static inline void sysfs_remove_link(struct kobject * k, const char * name)
 {
        ;
 }
@@ -131,6 +202,15 @@ static inline void sysfs_remove_group(struct kobject * k, const struct attribute
        ;
 }
 
+static inline void sysfs_notify(struct kobject * k, char *dir, char *attr)
+{
+}
+
+static inline int __must_check sysfs_init(void)
+{
+       return 0;
+}
+
 #endif /* CONFIG_SYSFS */
 
 #endif /* _SYSFS_H_ */