[GIT PULL] x86/process change for v3.4

[GIT PULL] x86/process change for v3.4

[Ingo Molnar]

Linus,

Please pull the latest x86-process-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-process-for-linus

   HEAD: 42dfc43ee5999ac64284476ea0ac6c937587cf2b x86_64: Record stack pointer before task execution begins

 Thanks,

	Ingo

------------------>
Siddhesh Poyarekar (1):
      x86_64: Record stack pointer before task execution begins


 arch/x86/kernel/process_64.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 1fd94bc..eb54dd0 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -341,6 +341,7 @@ start_thread_common(struct pt_regs *regs, unsigned long new_ip,
 	loadsegment(es, _ds);
 	loadsegment(ds, _ds);
 	load_gs_index(0);
+	current->thread.usersp	= new_sp;
 	regs->ip		= new_ip;
 	regs->sp		= new_sp;
 	percpu_write(old_rsp, new_sp);