Kernel

i2c: cyttsp i2c touchscreen driver init submit
On Mon, 2010-07-12 at 13:56 -0700, Kevin McNeely wrote: From: Fred <fwk(a)ubuntu.linuxcertified.com> This is a new touchscreen driver for the Cypress Semiconductor cyttsp family of devices. This driver is for the i2c version of cyttsp parts. Signed-off-by: Kevin McNeely <kev(a)cypress.com> --- ... 4 Aug 2010 14:42

[PATCH 07/18] Fix deep C-state TSC desynchronization
When CPUs with unstable TSCs enter deep C-state, TSC may stop running. This causes us to require resynchronization. Since we can't tell when this may potentially happen, we assume the worst by forcing re-compensation for it at every point the VCPU task is descheduled. Signed-off-by: Zachary Amsden <zamsden(a)red... 12 Jul 2010 22:56

[PATCH 03/18] TSC reset compensation
Attempt to synchronize TSCs which are reset to the same value. In the case of a reliable hardware TSC, we can just re-use the same offset, but on non-reliable hardware, we can get closer by adjusting the offset to match the elapsed time. Signed-off-by: Zachary Amsden <zamsden(a)redhat.com> --- arch/x86/include/... 12 Jul 2010 22:56

[PATCH 01/18] Make TSC offset writes non-preemptible
Ensure that the storing of the offset and the reading of the TSC are never preempted by taking a spinlock. While the lock is overkill now, it is useful later in this patch series. Signed-off-by: Zachary Amsden <zamsden(a)redhat.com> --- arch/x86/include/asm/kvm_host.h | 4 +++- arch/x86/kvm/svm.c ... 12 Jul 2010 22:56

[PATCH 13/18] Move scale_delta into common header
The scale_delta function for shift / multiply with 31-bit precision moves to a common header so it can be used by both kernel and kvm module. Signed-off-by: Zachary Amsden <zamsden(a)redhat.com> --- arch/x86/include/asm/pvclock.h | 38 ++++++++++++++++++++++++++++++++++++++ arch/x86/kernel/pvclock.c | ... 12 Jul 2010 22:56

[PATCH] CFQ: Don't store left slice when slice used up or for a idle workload
It doesn't make sence to store left time slice for an idle workload or for the cfqq that uses up its slice. Signed-off-by: Gui Jianfeng <guijianfeng(a)cn.fujitsu.com> --- block/cfq-iosched.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c inde... 12 Jul 2010 22:56

[PATCH 08/18] Add helper functions for time computation
Add a helper function to compute the kernel time and convert nanoseconds back to CPU specific cycles. Note that these must not be called in preemptible context, as that would mean the kernel could enter software suspend state, which would cause non-atomic operation. Also, convert the KVM_SET_CLOCK / KVM_GET_CLOC... 12 Jul 2010 22:56

[PATCH 17/18] Indicate reliable TSC in kvmclock
When no platform bugs have been detected, no TSC warps have been detected, and the hardware guarantees to us TSC does not change rate or stop with P-state or C-state changes, we can consider it reliable. Signed-off-by: Zachary Amsden <zamsden(a)redhat.com> --- arch/x86/kvm/x86.c | 10 +++++++++- 1 files change... 12 Jul 2010 22:56

[PATCH 16/18] Use getnsboottime in KVM
Signed-off-by: Zachary Amsden <zamsden(a)redhat.com> --- arch/x86/kvm/x86.c | 22 ++++++---------------- 1 files changed, 6 insertions(+), 16 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index f9994c3..e73ddf6 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -891,16 +891,6 @@ ... 12 Jul 2010 22:56

[PATCH 12/18] Add clock sync request to hardware enable
If there are active VCPUs which are marked as belonging to a particular hardware CPU, request a clock sync for them when enabling hardware; the TSC could be desynchronized on a newly arriving CPU, and we need to recompute guests system time relative to boot after a suspend event. This covers both cases. Note ... 12 Jul 2010 22:56