diff options
| author | Jan Beulich <JBeulich@suse.com> | 2012-02-24 15:55:01 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-02-24 23:46:28 +0400 |
| commit | 69466466ce889cd2cbc8cda9ff1c6083f48cc7f9 (patch) | |
| tree | 0564f1bb25de9c08a01e3d6247898b10c0805f1d /arch/arm/mm/mmap.c | |
| parent | b893485db994b17402524d3d700b950294cb6c97 (diff) | |
| download | linux-69466466ce889cd2cbc8cda9ff1c6083f48cc7f9.tar.xz | |
x86-64: Improve insn scheduling in SAVE_ARGS_IRQ
In one case, use an address register that was computed earlier (and
with a simpler instruction), thus reducing the risk of a stall.
In the second case, eliminate a branch by using a conditional move (as
is already done in call_softirq and xen_do_hypervisor_callback).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/4F4788A50200007800074A26@nat28.tlf.novell.com
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/arm/mm/mmap.c')
0 files changed, 0 insertions, 0 deletions