[PATCH 4/11] add simple get_uid() helper

[Chris Wright]

Add simple helper function to grab a reference to a user_struct.

===== include/linux/sched.h 1.210 vs edited =====
--- 1.210/include/linux/sched.h	Mon May 10 04:25:34 2004
+++ edited/include/linux/sched.h	Mon May 10 18:22:10 2004
@@ -714,6 +714,11 @@
 
 /* per-UID process charging. */
 extern struct user_struct * alloc_uid(uid_t);
+static inline struct user_struct *get_uid(struct user_struct *u)
+{
+	atomic_inc(&u->__count);
+	return u;
+}
 extern void free_uid(struct user_struct *);
 extern void switch_uid(struct user_struct *);
 

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