search for: call_lock

...--- arch/i386/kernel/smp.c | 177 +++++++++++++++++++++++------------------------- 1 file changed, 86 insertions(+), 91 deletions(-) =================================================================== --- a/arch/i386/kernel/smp.c +++ b/arch/i386/kernel/smp.c @@ -515,14 +515,26 @@ void unlock_ipi_call_lock(void) static struct call_data_struct *call_data; -static void __smp_call_function(void (*func) (void *info), void *info, - int nonatomic, int wait) + +static int __smp_call_function_mask(cpumask_t mask, + void (*func)(void *), void *info, + int wait) { struct call_data_stru...

...--- arch/i386/kernel/smp.c | 177 +++++++++++++++++++++++------------------------- 1 file changed, 86 insertions(+), 91 deletions(-) =================================================================== --- a/arch/i386/kernel/smp.c +++ b/arch/i386/kernel/smp.c @@ -515,14 +515,26 @@ void unlock_ipi_call_lock(void) static struct call_data_struct *call_data; -static void __smp_call_function(void (*func) (void *info), void *info, - int nonatomic, int wait) + +static int __smp_call_function_mask(cpumask_t mask, + void (*func)(void *), void *info, + int wait) { struct call_data_stru...

...b/xen/arch/x86/smp.c @@ -269,67 +269,16 @@ void smp_send_event_check_mask(const cpumask_t *mask) send_IPI_mask(mask, EVENT_CHECK_VECTOR); } -/* - * Structure and data for smp_call_function()/on_selected_cpus(). - */ - -static void __smp_call_function_interrupt(void); -static DEFINE_SPINLOCK(call_lock); -static struct call_data_struct { - void (*func) (void *info); - void *info; - int wait; - cpumask_t selected; -} call_data; - -void smp_call_function( - void (*func) (void *info), - void *info, - int wait) +void smp_send_call_function_mask(const cpumask_t *mask) { - cpum...

...6/kernel/smp-xen.c 2007-12-04 09:36:41.000000000 +0100 @@ -525,11 +525,11 @@ /* Wait for response */ while (atomic_read(&data.started) != cpus) - barrier(); + cpu_relax(); if (wait) while (atomic_read(&data.finished) != cpus) - barrier(); + cpu_relax(); spin_unlock(&call_lock); return 0; Index: head-2007-11-30/arch/x86_64/kernel/smp-xen.c =================================================================== --- head-2007-11-30.orig/arch/x86_64/kernel/smp-xen.c 2007-12-06 14:56:17.000000000 +0100 +++ head-2007-11-30/arch/x86_64/kernel/smp-xen.c 2007-12-04 09:38:48.0000...

...-657,7 +657,7 @@ static void stop_this_cpu (void * dummy) * this function calls the 'stop' function on all other CPUs in the system. */ -void smp_send_stop(void) +void native_smp_send_stop(void) { /* Don't deadlock on the call lock in panic */ int nolock = !spin_trylock(&call_lock); @@ -733,3 +733,14 @@ int safe_smp_processor_id(void) return cpuid >= 0 ? cpuid : 0; } + +struct smp_ops smp_ops = { + .smp_prepare_boot_cpu = native_smp_prepare_boot_cpu, + .smp_prepare_cpus = native_smp_prepare_cpus, + .cpu_up = native_cpu_up, + .smp_cpus_done = native_smp_cpus_done, + +...

...-657,7 +657,7 @@ static void stop_this_cpu (void * dummy) * this function calls the 'stop' function on all other CPUs in the system. */ -void smp_send_stop(void) +void native_smp_send_stop(void) { /* Don't deadlock on the call lock in panic */ int nolock = !spin_trylock(&call_lock); @@ -733,3 +733,14 @@ int safe_smp_processor_id(void) return cpuid >= 0 ? cpuid : 0; } + +struct smp_ops smp_ops = { + .smp_prepare_boot_cpu = native_smp_prepare_boot_cpu, + .smp_prepare_cpus = native_smp_prepare_cpus, + .cpu_up = native_cpu_up, + .smp_cpus_done = native_smp_cpus_done, + +...

...@@ static void stop_this_cpu (void * dummy) * this function calls the 'stop' function on all other CPUs in the system. */ -void native_smp_send_stop(void) +static void native_smp_send_stop(void) { /* Don't deadlock on the call lock in panic */ int nolock = !spin_trylock(&call_lock); =================================================================== --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -99,9 +99,6 @@ EXPORT_SYMBOL(x86_cpu_to_apicid); u8 apicid_2_node[MAX_APICID]; -DEFINE_PER_CPU(unsigned long, this_cpu_off); -EXPORT_PER_CPU_SYMBOL(this_cp...

...@@ static void stop_this_cpu (void * dummy) * this function calls the 'stop' function on all other CPUs in the system. */ -void native_smp_send_stop(void) +static void native_smp_send_stop(void) { /* Don't deadlock on the call lock in panic */ int nolock = !spin_trylock(&call_lock); =================================================================== --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -99,9 +99,6 @@ EXPORT_SYMBOL(x86_cpu_to_apicid); u8 apicid_2_node[MAX_APICID]; -DEFINE_PER_CPU(unsigned long, this_cpu_off); -EXPORT_PER_CPU_SYMBOL(this_cp...

Hi folks, Here is the result of the latest work on the pvops front, after the x86 arch merge. From the functionality point of view, almost nothing was changed, except for proper vsmp support - which was discussed, but not implemented before - and the introduction of smp_ops in x86_64, which eased the merging of the smp header. Speaking of the merge, a significant part (although not majority) of

Hi folks, Here is the result of the latest work on the pvops front, after the x86 arch merge. From the functionality point of view, almost nothing was changed, except for proper vsmp support - which was discussed, but not implemented before - and the introduction of smp_ops in x86_64, which eased the merging of the smp header. Speaking of the merge, a significant part (although not majority) of

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP and SMP guest support (NEW!) * dynamic ticks (NEW!) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes (non-PAE may be broken at the moment) * xen hvc console

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP and SMP guest support (NEW!) * dynamic ticks (NEW!) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes (non-PAE may be broken at the moment) * xen hvc console

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP and SMP guest support (NEW!) * dynamic ticks (NEW!) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes (non-PAE may be broken at the moment) * xen hvc console

Hi Linus, Here's a set of patches to update paravirt_ops and Xen for 2.6.24 A quick overview of the patchset: paravirt_ops: Remove the monolithic paravirt_ops structure, and replace it with smaller structures of related functions. Also, clean up the handling of lazy mode to make it easier to implement. x86/mm/init.c: remove a chunk of dead code Xen: - remove duplicate includes -

Hi Linus, Here's a set of patches to update paravirt_ops and Xen for 2.6.24 A quick overview of the patchset: paravirt_ops: Remove the monolithic paravirt_ops structure, and replace it with smaller structures of related functions. Also, clean up the handling of lazy mode to make it easier to implement. x86/mm/init.c: remove a chunk of dead code Xen: - remove duplicate includes -

Hi Linus, Here's a set of patches to update paravirt_ops and Xen for 2.6.24 A quick overview of the patchset: paravirt_ops: Remove the monolithic paravirt_ops structure, and replace it with smaller structures of related functions. Also, clean up the handling of lazy mode to make it easier to implement. x86/mm/init.c: remove a chunk of dead code Xen: - remove duplicate includes -

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen