[tip:tracing/core] [S390] ftrace: update system call tracer support

[tip-bot for Ingo Molnar <mingo@elte.hu>]

Commit-ID:  a9008fd42b1c3c89f684d90bdfb9c2d05c7af119
Gitweb:     http://git.kernel.org/tip/a9008fd42b1c3c89f684d90bdfb9c2d05c7af119
Author:     Ingo Molnar <mingo@elte.hu>
AuthorDate: Tue, 18 Aug 2009 10:41:57 +0200
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 18 Aug 2009 10:41:49 +0200

[S390] ftrace: update system call tracer support

Commit fb34a08c3 ("tracing: Add trace events for each syscall
entry/exit") changed the lowlevel API to ftrace syscall tracing
but did not update s390 which started making use of it recently.

This broke the s390 build, as reported by Paul Mundt.

Update the callbacks with the syscall number and the syscall
return code values. This allows per syscall tracepoints,
syscall argument enumeration /debug/tracing/events/syscalls/
and perfcounters support and integration on s390 too.

Reported-by: Paul Mundt <lethal@linux-sh.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <tip-fb34a08c3469b2be9eae626ccb96476b4687b810@git.kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 arch/s390/kernel/ptrace.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 43acd73..05f57cd 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -662,7 +662,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
 	}
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE)))
-		ftrace_syscall_enter(regs);
+		trace_syscall_enter(regs, regs->gprs[2]);
 
 	if (unlikely(current->audit_context))
 		audit_syscall_entry(is_compat_task() ?
@@ -680,7 +680,7 @@ asmlinkage void do_syscall_trace_exit(struct pt_regs *regs)
 				   regs->gprs[2]);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_FTRACE)))
-		ftrace_syscall_exit(regs);
+		trace_syscall_exit(regs, regs->gprs[2]);
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);