tree fd8856815bea7ef8b6525f498cbc6f7dc2ded28e
parent 0ada3164031162b4e1b7ff6b36ba8cc80ff7fe96
author Glauber Costa <gcosta@redhat.com> 1214337119 -0300
committer Ingo Molnar <mingo@elte.hu> 1215587649 +0200

x86: change testing logic in putuser_64.S.

Instead of operating over a register we need to put back
into normal state afterwards (the memory position), just
sub from rbx, which is trashed anyway. We can save a few instructions.

Also, this is the i386 way.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>