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| author | Ingo Molnar <mingo@elte.hu> | 2009-08-13 23:37:26 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-13 23:38:20 +0200 |
| commit | 60d970c254b95ec7a0fc4c590b510253987b64a0 (patch) | |
| tree | 3f99d03bf8af498ef57376f65b7c18b9e18b098a | |
| parent | 19007a67a64f9b3cbbd7024f972654ebf14daade (diff) | |
| download | linux-60d970c254b95ec7a0fc4c590b510253987b64a0.tar.gz linux-60d970c254b95ec7a0fc4c590b510253987b64a0.tar.bz2 linux-60d970c254b95ec7a0fc4c590b510253987b64a0.zip | |
tracing: Fix syscall tracing on !HAVE_FTRACE_SYSCALLS architectures
The new syscall_regfunc()/unregfunc() functions rely on
the existence of TIF_SYSCALL_FTRACE - but that TIF flag
is only offered by HAVE_FTRACE_SYSCALLS.
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/tracepoint.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 070a42bb8920..35dd27adb82c 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -579,6 +579,8 @@ __initcall(init_tracepoints); #endif /* CONFIG_MODULES */ +#ifdef CONFIG_FTRACE_SYSCALLS + static DEFINE_MUTEX(regfunc_mutex); static int sys_tracepoint_refcount; @@ -615,3 +617,4 @@ void syscall_unregfunc(void) } mutex_unlock(®func_mutex); } +#endif |