---

yaml --- r: 158422 b: refs/heads/master c: 066e037 h: refs/heads/master v: v3
git-mirror · Aug 11, 2009 · 6620a35 · 6620a35
1 parent 39e43ac
commit 6620a35
Show file tree

Hide file tree

Showing 4 changed files with 5 additions and 14 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: eeac19a7efa150231e4a6bb110d6f27500bcc8ce
+refs/heads/master: 066e0378c23f0a3db730893f6a041e4a3922a385
diff --git a/trunk/arch/x86/kernel/ftrace.c b/trunk/arch/x86/kernel/ftrace.c
@@ -516,31 +516,24 @@ int syscall_name_to_nr(char *name)
 	return -1;
 }
 
-void arch_init_ftrace_syscalls(void)
+static int __init arch_init_ftrace_syscalls(void)
 {
 	int i;
 	struct syscall_metadata *meta;
 	unsigned long **psys_syscall_table = &sys_call_table;
-	static atomic_t refs;
-
-	if (atomic_inc_return(&refs) != 1)
-		goto end;
 
 	syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) *
 					FTRACE_SYSCALL_MAX, GFP_KERNEL);
 	if (!syscalls_metadata) {
 		WARN_ON(1);
-		return;
+		return -ENOMEM;
 	}
 
 	for (i = 0; i < FTRACE_SYSCALL_MAX; i++) {
 		meta = find_syscall_meta(psys_syscall_table[i]);
 		syscalls_metadata[i] = meta;
 	}
-	return;
-
-	/* Paranoid: avoid overflow */
-end:
-	atomic_dec(&refs);
+	return 0;
 }
+arch_initcall(arch_init_ftrace_syscalls);
 #endif
diff --git a/trunk/include/trace/syscall.h b/trunk/include/trace/syscall.h
@@ -19,7 +19,6 @@ struct syscall_metadata {
 };
 
 #ifdef CONFIG_FTRACE_SYSCALLS
-extern void arch_init_ftrace_syscalls(void);
 extern struct syscall_metadata *syscall_nr_to_meta(int nr);
 extern void start_ftrace_syscalls(void);
 extern void stop_ftrace_syscalls(void);

diff --git a/trunk/kernel/trace/trace_syscalls.c b/trunk/kernel/trace/trace_syscalls.c
@@ -106,7 +106,6 @@ void start_ftrace_syscalls(void)
 	if (++refcount != 1)
 		goto unlock;
 
-	arch_init_ftrace_syscalls();
 	read_lock_irqsave(&tasklist_lock, flags);
 
 	do_each_thread(g, t) {