[PATCH] x86_64: Don't do syscall exit tracing twice

int_ret_from_syscall already does syscall exit tracing, so
no need to do it again in the caller.

This caused problems for UML and some other special programs doing
syscall interception.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 6 deletions

diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index c946e4fe67a7..586b34c00c48 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -281,12 +281,7 @@ tracesys:
         ja  1f
         movq %r10,%rcx  /* fixup for C */
         call *sys_call_table(,%rax,8)
-        movq %rax,RAX-ARGOFFSET(%rsp)
-1:      SAVE_REST
-        movq %rsp,%rdi
-        call syscall_trace_leave
-        RESTORE_TOP_OF_STACK %rbx
-        RESTORE_REST
+1:      movq %rax,RAX-ARGOFFSET(%rsp)
         /* Use IRET because user could have changed frame */
         jmp int_ret_from_sys_call
         CFI_ENDPROC