Re: [PATCH v4 0/5] implement vcpu preempted check
在 2016/10/19 23:58, Juergen Gross 写道:
On 19/10/16 12:20, Pan Xinhui wrote:
change from v3:
add x86 vcpu preempted check patch
change from v2:
no code change, fix typos, update some comments
change from v1:
a simplier definition of default vcpu_is_preempted
skip mahcine type check on ppc, and add config. remove dedicated macro.
add one patch to drop overload of rwsem_spin_on_owner and
mutex_spin_on_owner.
add more comments
thanks boqun and Peter's suggestion.
This patch set aims to fix lock holder preemption issues.
test-case:
perf record -a perf bench sched messaging -g 400 -p && perf report
18.09% sched-messaging [kernel.vmlinux] [k] osq_lock
12.28% sched-messaging [kernel.vmlinux] [k] rwsem_spin_on_owner
5.27% sched-messaging [kernel.vmlinux] [k] mutex_unlock
3.89% sched-messaging [kernel.vmlinux] [k] wait_consider_task
3.64% sched-messaging [kernel.vmlinux] [k] _raw_write_lock_irq
3.41% sched-messaging [kernel.vmlinux] [k] mutex_spin_on_owner.is
2.49% sched-messaging [kernel.vmlinux] [k] system_call
We introduce interface bool vcpu_is_preempted(int cpu) and use it in some spin
loops of osq_lock, rwsem_spin_on_owner and mutex_spin_on_owner.
These spin_on_onwer variant also cause rcu stall before we apply this patch set
We also have observed some performace improvements.
PPC test result:
1 copy - 0.94%
2 copy - 7.17%
4 copy - 11.9%
8 copy - 3.04%
16 copy - 15.11%
details below:
Without patch:
1 copy - File Write 4096 bufsize 8000 maxblocks 2188223.0 KBps (30.0 s, 1
samples)
2 copy - File Write 4096 bufsize 8000 maxblocks 1804433.0 KBps (30.0 s, 1
samples)
4 copy - File Write 4096 bufsize 8000 maxblocks 1237257.0 KBps (30.0 s, 1
samples)
8 copy - File Write 4096 bufsize 8000 maxblocks 1032658.0 KBps (30.0 s, 1
samples)
16 copy - File Write 4096 bufsize 8000 maxblocks 768000.0 KBps (30.1 s,
1 samples)
With patch:
1 copy - File Write 4096 bufsize 8000 maxblocks 2209189.0 KBps (30.0 s, 1
samples)
2 copy - File Write 4096 bufsize 8000 maxblocks 1943816.0 KBps (30.0 s, 1
samples)
4 copy - File Write 4096 bufsize 8000 maxblocks 1405591.0 KBps (30.0 s, 1
samples)
8 copy - File Write 4096 bufsize 8000 maxblocks 1065080.0 KBps (30.0 s, 1
samples)
16 copy - File Write 4096 bufsize 8000 maxblocks 904762.0 KBps (30.0 s,
1 samples)
X86 test result:
test-case after-patch before-patch
Execl Throughput |18307.9 lps |11701.6 lps
File Copy 1024 bufsize 2000 maxblocks | 1352407.3 KBps | 790418.9 KBps
File Copy 256 bufsize 500 maxblocks| 367555.6 KBps | 222867.7 KBps
File Copy 4096 bufsize 8000 maxblocks | 3675649.7 KBps | 1780614.4 KBps
Pipe Throughput| 11872208.7 lps | 11855628.9 lps
Pipe-based Context Switching | 1495126.5 lps | 1490533.9 lps
Process Creation |29881.2 lps |28572.8 lps
Shell Scripts (1 concurrent) |23224.3 lpm |22607.4 lpm
Shell Scripts (8 concurrent) | 3531.4 lpm | 3211.9 lpm
System Call Overhead | 10385653.0 lps | 10419979.0 lps
Pan Xinhui (5):
kernel/sched: introduce vcpu preempted check interface
locking/osq: Drop the overload of osq_lock()
kernel/locking: Drop the overload of {mutex,rwsem}_spin_on_owner
powerpc/spinlock: support vcpu preempted check
x86, kvm: support vcpu preempted check
The attached patch adds Xen support for x86. Please tell me whether you
want to add this patch to your series or if I should post it when your
series has been accepted.
hi, Juergen
Your patch is pretty small and nice :) thanks!
I can include your patch into my next patchset after this patchset reviewed. :)
You can add my
Tested-by: Juergen Gross
for patches 1-3 and 5 (paravirt parts only).
Thanks a lot!
xinhui
Juergen
arch/powerpc/include/asm/spinlock.h | 8
arch/x86/include/asm/paravirt_types.h | 6 ++
arch/x86/include/asm/spinlock.h | 8
arch/x86/include/uapi/asm/kvm_para.h | 3 ++-
arch/x86/kernel/kvm.c | 11 +++
arch/x86/kernel/paravirt.c| 11 +++
arch/x86/kvm/x86.c| 12
include/linux/sched.h | 12
kernel/locking/mutex.c| 15 +--
kernel/locking/osq_lock.c | 10 +-
kernel/locking/rwsem-xadd.c | 16 +---
11 files changed, 105 insertions(+), 7 deletions(-)
Re: [PATCH v4 0/5] implement vcpu preempted check
在 2016/10/19 14:47, Christian Borntraeger 写道:
On 10/19/2016 12:20 PM, Pan Xinhui wrote:
change from v3:
add x86 vcpu preempted check patch
If you want you could add the s390 patch that I provided for your last version.
I also gave my Acked-by for all previous patches.
hi, Christian
Thanks a lot！
I can include your new s390 patch into my next patchset(if v5 is needed).
xinhui
change from v2:
no code change, fix typos, update some comments
change from v1:
a simplier definition of default vcpu_is_preempted
skip mahcine type check on ppc, and add config. remove dedicated macro.
add one patch to drop overload of rwsem_spin_on_owner and
mutex_spin_on_owner.
add more comments
thanks boqun and Peter's suggestion.
This patch set aims to fix lock holder preemption issues.
test-case:
perf record -a perf bench sched messaging -g 400 -p && perf report
18.09% sched-messaging [kernel.vmlinux] [k] osq_lock
12.28% sched-messaging [kernel.vmlinux] [k] rwsem_spin_on_owner
5.27% sched-messaging [kernel.vmlinux] [k] mutex_unlock
3.89% sched-messaging [kernel.vmlinux] [k] wait_consider_task
3.64% sched-messaging [kernel.vmlinux] [k] _raw_write_lock_irq
3.41% sched-messaging [kernel.vmlinux] [k] mutex_spin_on_owner.is
2.49% sched-messaging [kernel.vmlinux] [k] system_call
We introduce interface bool vcpu_is_preempted(int cpu) and use it in some spin
loops of osq_lock, rwsem_spin_on_owner and mutex_spin_on_owner.
These spin_on_onwer variant also cause rcu stall before we apply this patch set
We also have observed some performace improvements.
PPC test result:
1 copy - 0.94%
2 copy - 7.17%
4 copy - 11.9%
8 copy - 3.04%
16 copy - 15.11%
details below:
Without patch:
1 copy - File Write 4096 bufsize 8000 maxblocks 2188223.0 KBps (30.0 s, 1
samples)
2 copy - File Write 4096 bufsize 8000 maxblocks 1804433.0 KBps (30.0 s, 1
samples)
4 copy - File Write 4096 bufsize 8000 maxblocks 1237257.0 KBps (30.0 s, 1
samples)
8 copy - File Write 4096 bufsize 8000 maxblocks 1032658.0 KBps (30.0 s, 1
samples)
16 copy - File Write 4096 bufsize 8000 maxblocks 768000.0 KBps (30.1 s,
1 samples)
With patch:
1 copy - File Write 4096 bufsize 8000 maxblocks 2209189.0 KBps (30.0 s, 1
samples)
2 copy - File Write 4096 bufsize 8000 maxblocks 1943816.0 KBps (30.0 s, 1
samples)
4 copy - File Write 4096 bufsize 8000 maxblocks 1405591.0 KBps (30.0 s, 1
samples)
8 copy - File Write 4096 bufsize 8000 maxblocks 1065080.0 KBps (30.0 s, 1
samples)
16 copy - File Write 4096 bufsize 8000 maxblocks 904762.0 KBps (30.0 s,
1 samples)
X86 test result:
test-case after-patch before-patch
Execl Throughput |18307.9 lps |11701.6 lps
File Copy 1024 bufsize 2000 maxblocks | 1352407.3 KBps | 790418.9 KBps
File Copy 256 bufsize 500 maxblocks| 367555.6 KBps | 222867.7 KBps
File Copy 4096 bufsize 8000 maxblocks | 3675649.7 KBps | 1780614.4 KBps
Pipe Throughput| 11872208.7 lps | 11855628.9 lps
Pipe-based Context Switching | 1495126.5 lps | 1490533.9 lps
Process Creation |29881.2 lps |28572.8 lps
Shell Scripts (1 concurrent) |23224.3 lpm |22607.4 lpm
Shell Scripts (8 concurrent) | 3531.4 lpm | 3211.9 lpm
System Call Overhead | 10385653.0 lps | 10419979.0 lps
Pan Xinhui (5):
kernel/sched: introduce vcpu preempted check interface
locking/osq: Drop the overload of osq_lock()
kernel/locking: Drop the overload of {mutex,rwsem}_spin_on_owner
powerpc/spinlock: support vcpu preempted check
x86, kvm: support vcpu preempted check
arch/powerpc/include/asm/spinlock.h | 8
arch/x86/include/asm/paravirt_types.h | 6 ++
arch/x86/include/asm/spinlock.h | 8
arch/x86/include/uapi/asm/kvm_para.h | 3 ++-
arch/x86/kernel/kvm.c | 11 +++
arch/x86/kernel/paravirt.c| 11 +++
arch/x86/kvm/x86.c| 12
include/linux/sched.h | 12
kernel/locking/mutex.c| 15 +--
kernel/locking/osq_lock.c | 10 +-
kernel/locking/rwsem-xadd.c | 16 +---
11 files changed, 105 insertions(+), 7 deletions(-)
Re: [PATCH v4 0/5] implement vcpu preempted check
On 19/10/16 12:20, Pan Xinhui wrote:
> change from v3:
> add x86 vcpu preempted check patch
> change from v2:
> no code change, fix typos, update some comments
> change from v1:
> a simplier definition of default vcpu_is_preempted
> skip mahcine type check on ppc, and add config. remove dedicated macro.
> add one patch to drop overload of rwsem_spin_on_owner and
> mutex_spin_on_owner.
> add more comments
> thanks boqun and Peter's suggestion.
>
> This patch set aims to fix lock holder preemption issues.
>
> test-case:
> perf record -a perf bench sched messaging -g 400 -p && perf report
>
> 18.09% sched-messaging [kernel.vmlinux] [k] osq_lock
> 12.28% sched-messaging [kernel.vmlinux] [k] rwsem_spin_on_owner
> 5.27% sched-messaging [kernel.vmlinux] [k] mutex_unlock
> 3.89% sched-messaging [kernel.vmlinux] [k] wait_consider_task
> 3.64% sched-messaging [kernel.vmlinux] [k] _raw_write_lock_irq
> 3.41% sched-messaging [kernel.vmlinux] [k] mutex_spin_on_owner.is
> 2.49% sched-messaging [kernel.vmlinux] [k] system_call
>
> We introduce interface bool vcpu_is_preempted(int cpu) and use it in some spin
> loops of osq_lock, rwsem_spin_on_owner and mutex_spin_on_owner.
> These spin_on_onwer variant also cause rcu stall before we apply this patch
> set
>
> We also have observed some performace improvements.
>
> PPC test result:
>
> 1 copy - 0.94%
> 2 copy - 7.17%
> 4 copy - 11.9%
> 8 copy - 3.04%
> 16 copy - 15.11%
>
> details below:
> Without patch:
>
> 1 copy - File Write 4096 bufsize 8000 maxblocks 2188223.0 KBps (30.0 s,
> 1 samples)
> 2 copy - File Write 4096 bufsize 8000 maxblocks 1804433.0 KBps (30.0 s,
> 1 samples)
> 4 copy - File Write 4096 bufsize 8000 maxblocks 1237257.0 KBps (30.0 s,
> 1 samples)
> 8 copy - File Write 4096 bufsize 8000 maxblocks 1032658.0 KBps (30.0 s,
> 1 samples)
> 16 copy - File Write 4096 bufsize 8000 maxblocks 768000.0 KBps (30.1
> s, 1 samples)
>
> With patch:
>
> 1 copy - File Write 4096 bufsize 8000 maxblocks 2209189.0 KBps (30.0 s,
> 1 samples)
> 2 copy - File Write 4096 bufsize 8000 maxblocks 1943816.0 KBps (30.0 s,
> 1 samples)
> 4 copy - File Write 4096 bufsize 8000 maxblocks 1405591.0 KBps (30.0 s,
> 1 samples)
> 8 copy - File Write 4096 bufsize 8000 maxblocks 1065080.0 KBps (30.0 s,
> 1 samples)
> 16 copy - File Write 4096 bufsize 8000 maxblocks 904762.0 KBps (30.0
> s, 1 samples)
>
> X86 test result:
> test-case after-patch before-patch
> Execl Throughput |18307.9 lps |11701.6 lps
> File Copy 1024 bufsize 2000 maxblocks | 1352407.3 KBps | 790418.9 KBps
> File Copy 256 bufsize 500 maxblocks| 367555.6 KBps | 222867.7 KBps
> File Copy 4096 bufsize 8000 maxblocks | 3675649.7 KBps | 1780614.4 KBps
> Pipe Throughput| 11872208.7 lps | 11855628.9 lps
> Pipe-based Context Switching | 1495126.5 lps | 1490533.9 lps
> Process Creation |29881.2 lps |28572.8 lps
> Shell Scripts (1 concurrent) |23224.3 lpm |22607.4 lpm
> Shell Scripts (8 concurrent) | 3531.4 lpm | 3211.9 lpm
> System Call Overhead | 10385653.0 lps | 10419979.0 lps
>
> Pan Xinhui (5):
> kernel/sched: introduce vcpu preempted check interface
> locking/osq: Drop the overload of osq_lock()
> kernel/locking: Drop the overload of {mutex,rwsem}_spin_on_owner
> powerpc/spinlock: support vcpu preempted check
> x86, kvm: support vcpu preempted check
The attached patch adds Xen support for x86. Please tell me whether you
want to add this patch to your series or if I should post it when your
series has been accepted.
You can add my
Tested-by: Juergen Gross
for patches 1-3 and 5 (paravirt parts only).
Juergen
>
> arch/powerpc/include/asm/spinlock.h | 8
> arch/x86/include/asm/paravirt_types.h | 6 ++
> arch/x86/include/asm/spinlock.h | 8
> arch/x86/include/uapi/asm/kvm_para.h | 3 ++-
> arch/x86/kernel/kvm.c | 11 +++
> arch/x86/kernel/paravirt.c| 11 +++
> arch/x86/kvm/x86.c| 12
> include/linux/sched.h | 12
> kernel/locking/mutex.c| 15 +--
> kernel/locking/osq_lock.c | 10 +-
> kernel/locking/rwsem-xadd.c | 16 +---
> 11 files changed, 105 insertions(+), 7 deletions(-)
>
>From c79b86d00a812d6207ef788d453e2d0289ef22a0 Mon Sep 17 00:00:00 2001
From: Juergen Gross
Date: Wed, 19 Oct 2016 15:30:59 +0200
Subject: [PATCH] x86, xen: support vcpu preempted check
Support the vcpu_is_preempted() functionality under Xen. This will
enhance lock performance on overcommitted hosts (more runnable vcpus
than physical
Re: [PATCH v4 0/5] implement vcpu preempted check
On 10/19/2016 12:20 PM, Pan Xinhui wrote:
> change from v3:
> add x86 vcpu preempted check patch
If you want you could add the s390 patch that I provided for your last version.
I also gave my Acked-by for all previous patches.
> change from v2:
> no code change, fix typos, update some comments
> change from v1:
> a simplier definition of default vcpu_is_preempted
> skip mahcine type check on ppc, and add config. remove dedicated macro.
> add one patch to drop overload of rwsem_spin_on_owner and
> mutex_spin_on_owner.
> add more comments
> thanks boqun and Peter's suggestion.
>
> This patch set aims to fix lock holder preemption issues.
>
> test-case:
> perf record -a perf bench sched messaging -g 400 -p && perf report
>
> 18.09% sched-messaging [kernel.vmlinux] [k] osq_lock
> 12.28% sched-messaging [kernel.vmlinux] [k] rwsem_spin_on_owner
> 5.27% sched-messaging [kernel.vmlinux] [k] mutex_unlock
> 3.89% sched-messaging [kernel.vmlinux] [k] wait_consider_task
> 3.64% sched-messaging [kernel.vmlinux] [k] _raw_write_lock_irq
> 3.41% sched-messaging [kernel.vmlinux] [k] mutex_spin_on_owner.is
> 2.49% sched-messaging [kernel.vmlinux] [k] system_call
>
> We introduce interface bool vcpu_is_preempted(int cpu) and use it in some spin
> loops of osq_lock, rwsem_spin_on_owner and mutex_spin_on_owner.
> These spin_on_onwer variant also cause rcu stall before we apply this patch
> set
>
> We also have observed some performace improvements.
>
> PPC test result:
>
> 1 copy - 0.94%
> 2 copy - 7.17%
> 4 copy - 11.9%
> 8 copy - 3.04%
> 16 copy - 15.11%
>
> details below:
> Without patch:
>
> 1 copy - File Write 4096 bufsize 8000 maxblocks 2188223.0 KBps (30.0 s,
> 1 samples)
> 2 copy - File Write 4096 bufsize 8000 maxblocks 1804433.0 KBps (30.0 s,
> 1 samples)
> 4 copy - File Write 4096 bufsize 8000 maxblocks 1237257.0 KBps (30.0 s,
> 1 samples)
> 8 copy - File Write 4096 bufsize 8000 maxblocks 1032658.0 KBps (30.0 s,
> 1 samples)
> 16 copy - File Write 4096 bufsize 8000 maxblocks 768000.0 KBps (30.1
> s, 1 samples)
>
> With patch:
>
> 1 copy - File Write 4096 bufsize 8000 maxblocks 2209189.0 KBps (30.0 s,
> 1 samples)
> 2 copy - File Write 4096 bufsize 8000 maxblocks 1943816.0 KBps (30.0 s,
> 1 samples)
> 4 copy - File Write 4096 bufsize 8000 maxblocks 1405591.0 KBps (30.0 s,
> 1 samples)
> 8 copy - File Write 4096 bufsize 8000 maxblocks 1065080.0 KBps (30.0 s,
> 1 samples)
> 16 copy - File Write 4096 bufsize 8000 maxblocks 904762.0 KBps (30.0
> s, 1 samples)
>
> X86 test result:
> test-case after-patch before-patch
> Execl Throughput |18307.9 lps |11701.6 lps
> File Copy 1024 bufsize 2000 maxblocks | 1352407.3 KBps | 790418.9 KBps
> File Copy 256 bufsize 500 maxblocks| 367555.6 KBps | 222867.7 KBps
> File Copy 4096 bufsize 8000 maxblocks | 3675649.7 KBps | 1780614.4 KBps
> Pipe Throughput| 11872208.7 lps | 11855628.9 lps
> Pipe-based Context Switching | 1495126.5 lps | 1490533.9 lps
> Process Creation |29881.2 lps |28572.8 lps
> Shell Scripts (1 concurrent) |23224.3 lpm |22607.4 lpm
> Shell Scripts (8 concurrent) | 3531.4 lpm | 3211.9 lpm
> System Call Overhead | 10385653.0 lps | 10419979.0 lps
>
> Pan Xinhui (5):
> kernel/sched: introduce vcpu preempted check interface
> locking/osq: Drop the overload of osq_lock()
> kernel/locking: Drop the overload of {mutex,rwsem}_spin_on_owner
> powerpc/spinlock: support vcpu preempted check
> x86, kvm: support vcpu preempted check
>
> arch/powerpc/include/asm/spinlock.h | 8
> arch/x86/include/asm/paravirt_types.h | 6 ++
> arch/x86/include/asm/spinlock.h | 8
> arch/x86/include/uapi/asm/kvm_para.h | 3 ++-
> arch/x86/kernel/kvm.c | 11 +++
> arch/x86/kernel/paravirt.c| 11 +++
> arch/x86/kvm/x86.c| 12
> include/linux/sched.h | 12
> kernel/locking/mutex.c| 15 +--
> kernel/locking/osq_lock.c | 10 +-
> kernel/locking/rwsem-xadd.c | 16 +---
> 11 files changed, 105 insertions(+), 7 deletions(-)
>
[PATCH v4 0/5] implement vcpu preempted check
change from v3:
add x86 vcpu preempted check patch
change from v2:
no code change, fix typos, update some comments
change from v1:
a simplier definition of default vcpu_is_preempted
skip mahcine type check on ppc, and add config. remove dedicated macro.
add one patch to drop overload of rwsem_spin_on_owner and
mutex_spin_on_owner.
add more comments
thanks boqun and Peter's suggestion.
This patch set aims to fix lock holder preemption issues.
test-case:
perf record -a perf bench sched messaging -g 400 -p && perf report
18.09% sched-messaging [kernel.vmlinux] [k] osq_lock
12.28% sched-messaging [kernel.vmlinux] [k] rwsem_spin_on_owner
5.27% sched-messaging [kernel.vmlinux] [k] mutex_unlock
3.89% sched-messaging [kernel.vmlinux] [k] wait_consider_task
3.64% sched-messaging [kernel.vmlinux] [k] _raw_write_lock_irq
3.41% sched-messaging [kernel.vmlinux] [k] mutex_spin_on_owner.is
2.49% sched-messaging [kernel.vmlinux] [k] system_call
We introduce interface bool vcpu_is_preempted(int cpu) and use it in some spin
loops of osq_lock, rwsem_spin_on_owner and mutex_spin_on_owner.
These spin_on_onwer variant also cause rcu stall before we apply this patch set
We also have observed some performace improvements.
PPC test result:
1 copy - 0.94%
2 copy - 7.17%
4 copy - 11.9%
8 copy - 3.04%
16 copy - 15.11%
details below:
Without patch:
1 copy - File Write 4096 bufsize 8000 maxblocks 2188223.0 KBps (30.0 s, 1
samples)
2 copy - File Write 4096 bufsize 8000 maxblocks 1804433.0 KBps (30.0 s, 1
samples)
4 copy - File Write 4096 bufsize 8000 maxblocks 1237257.0 KBps (30.0 s, 1
samples)
8 copy - File Write 4096 bufsize 8000 maxblocks 1032658.0 KBps (30.0 s, 1
samples)
16 copy - File Write 4096 bufsize 8000 maxblocks 768000.0 KBps (30.1 s,
1 samples)
With patch:
1 copy - File Write 4096 bufsize 8000 maxblocks 2209189.0 KBps (30.0 s, 1
samples)
2 copy - File Write 4096 bufsize 8000 maxblocks 1943816.0 KBps (30.0 s, 1
samples)
4 copy - File Write 4096 bufsize 8000 maxblocks 1405591.0 KBps (30.0 s, 1
samples)
8 copy - File Write 4096 bufsize 8000 maxblocks 1065080.0 KBps (30.0 s, 1
samples)
16 copy - File Write 4096 bufsize 8000 maxblocks 904762.0 KBps (30.0 s,
1 samples)
X86 test result:
test-case after-patch before-patch
Execl Throughput |18307.9 lps |11701.6 lps
File Copy 1024 bufsize 2000 maxblocks | 1352407.3 KBps | 790418.9 KBps
File Copy 256 bufsize 500 maxblocks| 367555.6 KBps | 222867.7 KBps
File Copy 4096 bufsize 8000 maxblocks | 3675649.7 KBps | 1780614.4 KBps
Pipe Throughput| 11872208.7 lps | 11855628.9 lps
Pipe-based Context Switching | 1495126.5 lps | 1490533.9 lps
Process Creation |29881.2 lps |28572.8 lps
Shell Scripts (1 concurrent) |23224.3 lpm |22607.4 lpm
Shell Scripts (8 concurrent) | 3531.4 lpm | 3211.9 lpm
System Call Overhead | 10385653.0 lps | 10419979.0 lps
Pan Xinhui (5):
kernel/sched: introduce vcpu preempted check interface
locking/osq: Drop the overload of osq_lock()
kernel/locking: Drop the overload of {mutex,rwsem}_spin_on_owner
powerpc/spinlock: support vcpu preempted check
x86, kvm: support vcpu preempted check
arch/powerpc/include/asm/spinlock.h | 8
arch/x86/include/asm/paravirt_types.h | 6 ++
arch/x86/include/asm/spinlock.h | 8
arch/x86/include/uapi/asm/kvm_para.h | 3 ++-
arch/x86/kernel/kvm.c | 11 +++
arch/x86/kernel/paravirt.c| 11 +++
arch/x86/kvm/x86.c| 12
include/linux/sched.h | 12
kernel/locking/mutex.c| 15 +--
kernel/locking/osq_lock.c | 10 +-
kernel/locking/rwsem-xadd.c | 16 +---
11 files changed, 105 insertions(+), 7 deletions(-)
--
2.4.11
