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...Acked-by: Arnd Bergmann <arnd at arndb.de> > --- > arch/powerpc/include/asm/barrier.h | 24 ++++++++---------------- > 1 file changed, 8 insertions(+), 16 deletions(-) > > diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h > index 980ad0c..c0deafc 100644 > --- a/arch/powerpc/include/asm/barrier.h > +++ b/arch/powerpc/include/asm/barrier.h > @@ -44,19 +44,11 @@ > #define dma_rmb() __lwsync() > #define dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : : :"memory") > > -#ifdef CONFIG_SMP > -#define s...

...Acked-by: Arnd Bergmann <arnd at arndb.de> > --- > arch/powerpc/include/asm/barrier.h | 24 ++++++++---------------- > 1 file changed, 8 insertions(+), 16 deletions(-) > > diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h > index 980ad0c..c0deafc 100644 > --- a/arch/powerpc/include/asm/barrier.h > +++ b/arch/powerpc/include/asm/barrier.h > @@ -44,19 +44,11 @@ > #define dma_rmb() __lwsync() > #define dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : : :"memory") > > -#ifdef CONFIG_SMP > -#define s...

...gt; --- > > > arch/powerpc/include/asm/barrier.h | 24 ++++++++---------------- > > > 1 file changed, 8 insertions(+), 16 deletions(-) > > > > > > diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h > > > index 980ad0c..c0deafc 100644 > > > --- a/arch/powerpc/include/asm/barrier.h > > > +++ b/arch/powerpc/include/asm/barrier.h > > > @@ -44,19 +44,11 @@ > > > #define dma_rmb() __lwsync() > > > #define dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : : :"memory&quo...

...gt; --- > > > arch/powerpc/include/asm/barrier.h | 24 ++++++++---------------- > > > 1 file changed, 8 insertions(+), 16 deletions(-) > > > > > > diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h > > > index 980ad0c..c0deafc 100644 > > > --- a/arch/powerpc/include/asm/barrier.h > > > +++ b/arch/powerpc/include/asm/barrier.h > > > @@ -44,19 +44,11 @@ > > > #define dma_rmb() __lwsync() > > > #define dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : : :"memory&quo...

...kin <mst at redhat.com> Acked-by: Arnd Bergmann <arnd at arndb.de> --- arch/powerpc/include/asm/barrier.h | 24 ++++++++---------------- 1 file changed, 8 insertions(+), 16 deletions(-) diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h index 980ad0c..c0deafc 100644 --- a/arch/powerpc/include/asm/barrier.h +++ b/arch/powerpc/include/asm/barrier.h @@ -44,19 +44,11 @@ #define dma_rmb() __lwsync() #define dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : : :"memory") -#ifdef CONFIG_SMP -#define smp_lwsync() __lwsync() +#define __smp_lw...

...nd at arndb.de> > > --- > > arch/powerpc/include/asm/barrier.h | 24 ++++++++---------------- > > 1 file changed, 8 insertions(+), 16 deletions(-) > > > > diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h > > index 980ad0c..c0deafc 100644 > > --- a/arch/powerpc/include/asm/barrier.h > > +++ b/arch/powerpc/include/asm/barrier.h > > @@ -44,19 +44,11 @@ > > #define dma_rmb() __lwsync() > > #define dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : : :"memory") > > > >...

...t; arch/powerpc/include/asm/barrier.h | 24 ++++++++---------------- > > > > 1 file changed, 8 insertions(+), 16 deletions(-) > > > > > > > > diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h > > > > index 980ad0c..c0deafc 100644 > > > > --- a/arch/powerpc/include/asm/barrier.h > > > > +++ b/arch/powerpc/include/asm/barrier.h > > > > @@ -44,19 +44,11 @@ > > > > #define dma_rmb() __lwsync() > > > > #define dma_wmb() __asm__ __volatile__ (stringify_in_c(SMPW...

Changes since v1: - replaced my asm-generic patch with an equivalent patch already in tip - add wrappers with virt_ prefix for better code annotation, as suggested by David Miller - dropped XXX in patch names as this makes vger choke, Cc all relevant mailing lists on all patches (not personal email, as the list becomes too long then) I parked this in vhost tree for now, but the

Changes since v1: - replaced my asm-generic patch with an equivalent patch already in tip - add wrappers with virt_ prefix for better code annotation, as suggested by David Miller - dropped XXX in patch names as this makes vger choke, Cc all relevant mailing lists on all patches (not personal email, as the list becomes too long then) I parked this in vhost tree for now, but the

This is really trying to cleanup some virt code, as suggested by Peter, who said > You could of course go fix that instead of mutilating things into > sort-of functional state. This work is needed for virtio, so it's probably easiest to merge it through my tree - is this fine by everyone? Arnd, if you agree, could you ack this please? Note to arch maintainers: please don't

This is really trying to cleanup some virt code, as suggested by Peter, who said > You could of course go fix that instead of mutilating things into > sort-of functional state. This work is needed for virtio, so it's probably easiest to merge it through my tree - is this fine by everyone? Arnd, if you agree, could you ack this please? Note to arch maintainers: please don't

Changes since v2: - extended checkpatch tests for barriers, and added patches teaching it to warn about incorrect usage of barriers (__smp_xxx barriers are for use by asm-generic code only), should help prevent misuse by arch code to address comments by Russell King - patched more instances of xen to use virt_ barriers as suggested by Stefano Stabellini - implemented a 2 byte xchg on sh

Changes since v2: - extended checkpatch tests for barriers, and added patches teaching it to warn about incorrect usage of barriers (__smp_xxx barriers are for use by asm-generic code only), should help prevent misuse by arch code to address comments by Russell King - patched more instances of xen to use virt_ barriers as suggested by Stefano Stabellini - implemented a 2 byte xchg on sh