patch-2.4.23 linux-2.4.23/kernel/user.c

• Lines: 24
• Date: 2003-11-28 10:26:21.000000000 -0800
• Orig file: linux-2.4.22/kernel/user.c
• Orig date: 2000-11-28 22:43:39.000000000 -0800

diff -urN linux-2.4.22/kernel/user.c linux-2.4.23/kernel/user.c
@@ -120,6 +120,23 @@
 	return up;
 }
 
+void switch_uid(struct user_struct *new_user)
+{
+ struct user_struct *old_user;
+
+ /* What if a process setreuid()'s and this brings the
+ * new uid over his NPROC rlimit? We can check this now
+ * cheaply with the new uid cache, so if it matters
+ * we should be checking for it. -DaveM
+ */
+ old_user = current->user;
+ atomic_inc(&new_user->__count);
+ atomic_inc(&new_user->processes);
+ atomic_dec(&old_user->processes);
+ current->user = new_user;
+ free_uid(old_user);
+}
+
 
 static int __init uid_cache_init(void)
 {