diff options
| author | Thomas Gleixner | 2013-07-04 23:11:22 +0200 |
|---|---|---|
| committer | Thomas Gleixner | 2013-07-04 23:11:22 +0200 |
| commit | 2b0f89317e99735bbf32eaede81f707f98ab1b5e (patch) | |
| tree | 16daa236e21876b11f1c0b9256cd4046aadba020 /arch/x86/xen | |
| parent | 07bd1172902e782f288e4d44b1fde7dec0f08b6f (diff) | |
| parent | fa18f7bde3ad4568d1d343b60d963bfbd8dc3991 (diff) | |
Merge branch 'timers/posix-cpu-timers-for-tglx' of
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into timers/core
Frederic sayed: "Most of these patches have been hanging around for
several month now, in -mmotm for a significant chunk. They already
missed a few releases."
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/smp.c | 18 | ||||
| -rw-r--r-- | arch/x86/xen/smp.h | 1 |
2 files changed, 12 insertions, 7 deletions
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 8ff37995d54e..d99cae8147d1 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -17,6 +17,7 @@ #include <linux/slab.h> #include <linux/smp.h> #include <linux/irq_work.h> +#include <linux/tick.h> #include <asm/paravirt.h> #include <asm/desc.h> @@ -447,6 +448,13 @@ static void __cpuinit xen_play_dead(void) /* used only with HOTPLUG_CPU */ play_dead_common(); HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL); cpu_bringup(); + /* + * commit 4b0c0f294 (tick: Cleanup NOHZ per cpu data on cpu down) + * clears certain data that the cpu_idle loop (which called us + * and that we return from) expects. The only way to get that + * data back is to call: + */ + tick_nohz_idle_enter(); } #else /* !CONFIG_HOTPLUG_CPU */ @@ -576,24 +584,22 @@ void xen_send_IPI_mask_allbutself(const struct cpumask *mask, { unsigned cpu; unsigned int this_cpu = smp_processor_id(); + int xen_vector = xen_map_vector(vector); - if (!(num_online_cpus() > 1)) + if (!(num_online_cpus() > 1) || (xen_vector < 0)) return; for_each_cpu_and(cpu, mask, cpu_online_mask) { if (this_cpu == cpu) continue; - xen_smp_send_call_function_single_ipi(cpu); + xen_send_IPI_one(cpu, xen_vector); } } void xen_send_IPI_allbutself(int vector) { - int xen_vector = xen_map_vector(vector); - - if (xen_vector >= 0) - xen_send_IPI_mask_allbutself(cpu_online_mask, xen_vector); + xen_send_IPI_mask_allbutself(cpu_online_mask, vector); } static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id) diff --git a/arch/x86/xen/smp.h b/arch/x86/xen/smp.h index 8981a76d081a..c7c2d89efd76 100644 --- a/arch/x86/xen/smp.h +++ b/arch/x86/xen/smp.h @@ -5,7 +5,6 @@ extern void xen_send_IPI_mask(const struct cpumask *mask, extern void xen_send_IPI_mask_allbutself(const struct cpumask *mask, int vector); extern void xen_send_IPI_allbutself(int vector); -extern void physflat_send_IPI_allbutself(int vector); extern void xen_send_IPI_all(int vector); extern void xen_send_IPI_self(int vector); |