Add a thread flag to activate system-wide syscall tracing.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
 arch/alpha/include/asm/thread_info.h |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Index: linux-2.6-lttng/arch/alpha/include/asm/thread_info.h
===================================================================
--- linux-2.6-lttng.orig/arch/alpha/include/asm/thread_info.h	2009-03-15 15:57:05.000000000 -0400
+++ linux-2.6-lttng/arch/alpha/include/asm/thread_info.h	2009-03-15 15:57:12.000000000 -0400
@@ -74,6 +74,7 @@ register struct thread_info *__current_t
 #define TIF_UAC_SIGBUS		7
 #define TIF_MEMDIE		8
 #define TIF_RESTORE_SIGMASK	9	/* restore signal mask in do_signal */
+#define TIF_KERNEL_TRACE	10	/* Kernel tracing of syscalls */
 #define TIF_FREEZE		16	/* is freezing for suspend */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
@@ -81,6 +82,7 @@ register struct thread_info *__current_t
 #define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
 #define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)
+#define _TIF_KERNEL_TRACE	(1<<TIF_KERNEL_TRACE)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
 
 /* Work to do on interrupt/exception return.  */
@@ -88,7 +90,7 @@ register struct thread_info *__current_t
 
 /* Work to do on any return to userspace.  */
 #define _TIF_ALLWORK_MASK	(_TIF_WORK_MASK		\
-				 | _TIF_SYSCALL_TRACE)
+				 | _TIF_SYSCALL_TRACE | _TIF_KERNEL_TRACE)
 
 #define ALPHA_UAC_SHIFT		6
 #define ALPHA_UAC_MASK		(1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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