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    SubjectRe: [PATCH 6/7] x86, asmlinkage, xen, kvm: Make {xen,kvm}_lock_spinning global and visible
    On Tue, Oct 22, 2013 at 09:07:58AM -0700, Andi Kleen wrote:
    > From: Andi Kleen <ak@linux.intel.com>
    >
    > These functions are called from inline assembler stubs, thus
    > need to be global and visible.
    >
    > Cc: konrad.wilk@oracle.com
    > Cc: gleb@redhat.com
    > Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
    > Signed-off-by: Andi Kleen <ak@linux.intel.com>
    Acked-by: Gleb Natapov <gleb@redhat.com>

    > ---
    > arch/x86/kernel/kvm.c | 2 +-
    > arch/x86/xen/spinlock.c | 2 +-
    > 2 files changed, 2 insertions(+), 2 deletions(-)
    >
    > diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
    > index a0e2a8a..5d10bb5 100644
    > --- a/arch/x86/kernel/kvm.c
    > +++ b/arch/x86/kernel/kvm.c
    > @@ -673,7 +673,7 @@ static cpumask_t waiting_cpus;
    > /* Track spinlock on which a cpu is waiting */
    > static DEFINE_PER_CPU(struct kvm_lock_waiting, klock_waiting);
    >
    > -static void kvm_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
    > +__visible void kvm_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
    > {
    > struct kvm_lock_waiting *w;
    > int cpu;
    > diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
    > index be6b860..3ab9309 100644
    > --- a/arch/x86/xen/spinlock.c
    > +++ b/arch/x86/xen/spinlock.c
    > @@ -106,7 +106,7 @@ static DEFINE_PER_CPU(struct xen_lock_waiting, lock_waiting);
    > static cpumask_t waiting_cpus;
    >
    > static bool xen_pvspin = true;
    > -static void xen_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
    > +__visible void xen_lock_spinning(struct arch_spinlock *lock, __ticket_t want)
    > {
    > int irq = __this_cpu_read(lock_kicker_irq);
    > struct xen_lock_waiting *w = &__get_cpu_var(lock_waiting);
    > --
    > 1.8.3.1

    --
    Gleb.


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