sysfs: make kobj point to sysfs_dirent instead of dentry

As kobj sysfs dentries and inodes are gonna be made reclaimable,
dentry can't be used as naming token for sysfs file/directory, replace
kobj->dentry with kobj->sd.  The only external interface change is
shadow directory handling.  All other changes are contained in kobj
and sysfs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 4 deletions

diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index c288e41ba331..06cbf41d32d2 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -55,7 +55,7 @@ struct kobject {
         struct kobject          * parent;
         struct kset             * kset;
         struct kobj_type        * ktype;
-        struct dentry           * dentry;
+        struct sysfs_dirent     * sd;
         wait_queue_head_t       poll;
 };
 
@@ -71,13 +71,14 @@ extern void kobject_init(struct kobject *);
 extern void kobject_cleanup(struct kobject *);
 
 extern int __must_check kobject_add(struct kobject *);
-extern int __must_check kobject_shadow_add(struct kobject *, struct dentry *);
+extern int __must_check kobject_shadow_add(struct kobject *kobj,
+                                           struct sysfs_dirent *shadow_parent);
 extern void kobject_del(struct kobject *);
 
 extern int __must_check kobject_rename(struct kobject *, const char *new_name);
 extern int __must_check kobject_shadow_rename(struct kobject *kobj,
-                                                struct dentry *new_parent,
-                                                const char *new_name);
+                                              struct sysfs_dirent *new_parent,
+                                              const char *new_name);
 extern int __must_check kobject_move(struct kobject *, struct kobject *);
 
 extern int __must_check kobject_register(struct kobject *);