315f16edd5c47083d5b77d36ed2437e8b00a7e99 - pub/scm/linux/kernel/git/mst/vhost

commit: 315f16edd5c47083d5b77d36ed2437e8b00a7e99
[log] [tgz]
author: Michael S. Tsirkin <mst@redhat.com>
Wed Apr 18 12:57:10 2012 +0300
committer: Michael S. Tsirkin <mst@redhat.com>
Wed May 02 17:51:54 2012 +0300
tree: 514797139541e5ba326dbc6e57ced668bf46e91f
parent: b8ff9b91fc10d290097eb01a2d3d47de01141d60 [diff]

x86: eoi micro-optimization

We know both register and value for eoi beforehand,
so there's no need to check it and no need to do math
to calculate the msr. Saves instructions/branches
on each EOI when using x2apic.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

arch/x86/include/asm/apic.h[diff]
arch/x86/kernel/apic/x2apic_cluster.c[diff]
arch/x86/kernel/apic/x2apic_phys.c[diff]
arch/x86/kernel/apic/x2apic_uv_x.c[diff]

4 files changed

tree: 514797139541e5ba326dbc6e57ced668bf46e91f