[guv 10/16] ia64: __get_cpu_var conversion

From: Christoph Lameter
Date: Fri Aug 23 2013 - 15:02:38 EST

Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>

Index: linux/arch/alpha/kernel/perf_event.c
===================================================================
--- linux.orig/arch/alpha/kernel/perf_event.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/alpha/kernel/perf_event.c 2013-08-23 09:10:22.665620124 -0500
@@ -803,7 +803,7 @@ static void alpha_perf_event_irq_handler
struct hw_perf_event *hwc;
int idx, j;

- __get_cpu_var(irq_pmi_count)++;
+ __this_cpu_inc(irq_pmi_count);
cpuc = &__get_cpu_var(cpu_hw_events);

/* Completely counting through the PMC's period to trigger a new PMC
Index: linux/arch/ia64/kernel/irq.c
===================================================================
--- linux.orig/arch/ia64/kernel/irq.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/kernel/irq.c 2013-08-23 09:10:22.665620124 -0500
@@ -42,7 +42,7 @@ ia64_vector __ia64_irq_to_vector(int irq

unsigned int __ia64_local_vector_to_irq (ia64_vector vec)
{
- return __get_cpu_var(vector_irq)[vec];
+ return __this_cpu_read(vector_irq[vec]);
}
#endif

Index: linux/arch/ia64/kernel/irq_ia64.c
===================================================================
--- linux.orig/arch/ia64/kernel/irq_ia64.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/kernel/irq_ia64.c 2013-08-23 09:10:22.669620084 -0500
@@ -338,7 +338,7 @@ static irqreturn_t smp_irq_move_cleanup_
int irq;
struct irq_desc *desc;
struct irq_cfg *cfg;
- irq = __get_cpu_var(vector_irq)[vector];
+ irq = __this_cpu_read(vector_irq[vector]);
if (irq < 0)
continue;

@@ -352,7 +352,7 @@ static irqreturn_t smp_irq_move_cleanup_
goto unlock;

spin_lock_irqsave(&vector_lock, flags);
- __get_cpu_var(vector_irq)[vector] = -1;
+ __this_cpu_write(vector_irq[vector], -1);
cpu_clear(me, vector_table[vector]);
spin_unlock_irqrestore(&vector_lock, flags);
cfg->move_cleanup_count--;
Index: linux/arch/ia64/kernel/kprobes.c
===================================================================
--- linux.orig/arch/ia64/kernel/kprobes.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/kernel/kprobes.c 2013-08-23 09:10:22.669620084 -0500
@@ -396,7 +396,7 @@ static void __kprobes restore_previous_k
{
unsigned int i;
i = atomic_read(&kcb->prev_kprobe_index);
- __get_cpu_var(current_kprobe) = kcb->prev_kprobe[i-1].kp;
+ __this_cpu_write(current_kprobe, kcb->prev_kprobe[i-1].kp);
kcb->kprobe_status = kcb->prev_kprobe[i-1].status;
atomic_sub(1, &kcb->prev_kprobe_index);
}
@@ -404,7 +404,7 @@ static void __kprobes restore_previous_k
static void __kprobes set_current_kprobe(struct kprobe *p,
struct kprobe_ctlblk *kcb)
{
- __get_cpu_var(current_kprobe) = p;
+ __this_cpu_write(current_kprobe, p);
}

static void kretprobe_trampoline(void)
@@ -823,7 +823,7 @@ static int __kprobes pre_kprobes_handler
/*
* jprobe instrumented function just completed
*/
- p = __get_cpu_var(current_kprobe);
+ p = __this_cpu_read(current_kprobe);
if (p->break_handler && p->break_handler(p, regs)) {
goto ss_probe;
}
Index: linux/arch/ia64/kernel/mca.c
===================================================================
--- linux.orig/arch/ia64/kernel/mca.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/kernel/mca.c 2013-08-23 09:11:54.244715775 -0500
@@ -1341,7 +1341,7 @@ ia64_mca_handler(struct pt_regs *regs, s
ia64_mlogbuf_finish(1);
}

- if (__get_cpu_var(ia64_mca_tr_reload)) {
+ if (__this_cpu_read(ia64_mca_tr_reload)) {
mca_insert_tr(0x1); /*Reload dynamic itrs*/
mca_insert_tr(0x2); /*Reload dynamic itrs*/
}
@@ -1874,14 +1874,14 @@ ia64_mca_cpu_init(void *cpu_data)
"MCA", cpu);
format_mca_init_stack(data, offsetof(struct ia64_mca_cpu, init_stack),
"INIT", cpu);
- __get_cpu_var(ia64_mca_data) = __per_cpu_mca[cpu] = __pa(data);
+ __this_cpu_write(ia64_mca_data, __per_cpu_mca[cpu] = __pa(data));

/*
* Stash away a copy of the PTE needed to map the per-CPU page.
* We may need it during MCA recovery.
*/
- __get_cpu_var(ia64_mca_per_cpu_pte) =
- pte_val(mk_pte_phys(__pa(cpu_data), PAGE_KERNEL));
+ __this_cpu_write(ia64_mca_per_cpu_pte,
+ pte_val(mk_pte_phys(__pa(cpu_data), PAGE_KERNEL)));

/*
* Also, stash away a copy of the PAL address and the PTE
@@ -1890,10 +1890,10 @@ ia64_mca_cpu_init(void *cpu_data)
pal_vaddr = efi_get_pal_addr();
if (!pal_vaddr)
return;
- __get_cpu_var(ia64_mca_pal_base) =
- GRANULEROUNDDOWN((unsigned long) pal_vaddr);
- __get_cpu_var(ia64_mca_pal_pte) = pte_val(mk_pte_phys(__pa(pal_vaddr),
- PAGE_KERNEL));
+ __this_cpu_write(ia64_mca_pal_base,
+ GRANULEROUNDDOWN((unsigned long) pal_vaddr));
+ __this_cpu_write(ia64_mca_pal_pte, pte_val(mk_pte_phys(__pa(pal_vaddr),
+ PAGE_KERNEL)));
}

static void ia64_mca_cmc_vector_adjust(void *dummy)
Index: linux/arch/ia64/kernel/process.c
===================================================================
--- linux.orig/arch/ia64/kernel/process.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/kernel/process.c 2013-08-23 09:10:22.669620084 -0500
@@ -215,7 +215,7 @@ static inline void play_dead(void)
unsigned int this_cpu = smp_processor_id();

/* Ack it */
- __get_cpu_var(cpu_state) = CPU_DEAD;
+ __this_cpu_write(cpu_state, CPU_DEAD);

max_xtp();
local_irq_disable();
@@ -273,7 +273,7 @@ ia64_save_extra (struct task_struct *tas
if ((task->thread.flags & IA64_THREAD_PM_VALID) != 0)
pfm_save_regs(task);

- info = __get_cpu_var(pfm_syst_info);
+ info = __this_cpu_read(pfm_syst_info);
if (info & PFM_CPUINFO_SYST_WIDE)
pfm_syst_wide_update_task(task, info, 0);
#endif
@@ -293,7 +293,7 @@ ia64_load_extra (struct task_struct *tas
if ((task->thread.flags & IA64_THREAD_PM_VALID) != 0)
pfm_load_regs(task);

- info = __get_cpu_var(pfm_syst_info);
+ info = __this_cpu_read(pfm_syst_info);
if (info & PFM_CPUINFO_SYST_WIDE)
pfm_syst_wide_update_task(task, info, 1);
#endif
Index: linux/arch/ia64/sn/kernel/sn2/sn2_smp.c
===================================================================
--- linux.orig/arch/ia64/sn/kernel/sn2/sn2_smp.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/sn/kernel/sn2/sn2_smp.c 2013-08-23 09:10:22.669620084 -0500
@@ -134,8 +134,8 @@ sn2_ipi_flush_all_tlb(struct mm_struct *
itc = ia64_get_itc();
smp_flush_tlb_cpumask(*mm_cpumask(mm));
itc = ia64_get_itc() - itc;
- __get_cpu_var(ptcstats).shub_ipi_flushes_itc_clocks += itc;
- __get_cpu_var(ptcstats).shub_ipi_flushes++;
+ __this_cpu_add(ptcstats.shub_ipi_flushes_itc_clocks, itc);
+ __this_cpu_inc(ptcstats.shub_ipi_flushes);
}

/**
@@ -199,14 +199,14 @@ sn2_global_tlb_purge(struct mm_struct *m
start += (1UL << nbits);
} while (start < end);
ia64_srlz_i();
- __get_cpu_var(ptcstats).ptc_l++;
+ __this_cpu_inc(ptcstats.ptc_l);
preempt_enable();
return;
}

if (atomic_read(&mm->mm_users) == 1 && mymm) {
flush_tlb_mm(mm);
- __get_cpu_var(ptcstats).change_rid++;
+ __this_cpu_inc(ptcstats.change_rid);
preempt_enable();
return;
}
@@ -250,11 +250,11 @@ sn2_global_tlb_purge(struct mm_struct *m
spin_lock_irqsave(PTC_LOCK(shub1), flags);
itc2 = ia64_get_itc();

- __get_cpu_var(ptcstats).lock_itc_clocks += itc2 - itc;
- __get_cpu_var(ptcstats).shub_ptc_flushes++;
- __get_cpu_var(ptcstats).nodes_flushed += nix;
+ __this_cpu_add(ptcstats.lock_itc_clocks, itc2 - itc);
+ __this_cpu_inc(ptcstats.shub_ptc_flushes);
+ __this_cpu_add(ptcstats.nodes_flushed, nix);
if (!mymm)
- __get_cpu_var(ptcstats).shub_ptc_flushes_not_my_mm++;
+ __this_cpu_inc(ptcstats.shub_ptc_flushes_not_my_mm);

if (use_cpu_ptcga && !mymm) {
old_rr = ia64_get_rr(start);
@@ -299,9 +299,9 @@ sn2_global_tlb_purge(struct mm_struct *m

done:
itc2 = ia64_get_itc() - itc2;
- __get_cpu_var(ptcstats).shub_itc_clocks += itc2;
- if (itc2 > __get_cpu_var(ptcstats).shub_itc_clocks_max)
- __get_cpu_var(ptcstats).shub_itc_clocks_max = itc2;
+ __this_cpu_add(ptcstats)shub_itc_clocks, itc2);
+ if (itc2 > __this_cpu_read(ptcstats.shub_itc_clocks_max))
+ __this_cpu_write(ptcstats).shub_itc_clocks_max, itc2);

if (old_rr) {
ia64_set_rr(start, old_rr);
@@ -311,7 +311,7 @@ done:
spin_unlock_irqrestore(PTC_LOCK(shub1), flags);

if (flush_opt == 1 && deadlock) {
- __get_cpu_var(ptcstats).deadlocks++;
+ __this_cpu_inc(ptcstats.deadlocks);
sn2_ipi_flush_all_tlb(mm);
}

@@ -334,7 +334,7 @@ sn2_ptc_deadlock_recovery(short *nasids,
short nasid, i;
unsigned long *piows, zeroval, n;

- __get_cpu_var(ptcstats).deadlocks++;
+ __this_cpu_inc(ptcstats.deadlocks);

piows = (unsigned long *) pda->pio_write_status_addr;
zeroval = pda->pio_write_status_val;
@@ -349,7 +349,7 @@ sn2_ptc_deadlock_recovery(short *nasids,
ptc1 = CHANGE_NASID(nasid, ptc1);

n = sn2_ptc_deadlock_recovery_core(ptc0, data0, ptc1, data1, piows, zeroval);
- __get_cpu_var(ptcstats).deadlocks2 += n;
+ __this_cpu_add(ptcstats.deadlocks2, n);
}

}
Index: linux/arch/ia64/include/asm/hw_irq.h
===================================================================
--- linux.orig/arch/ia64/include/asm/hw_irq.h 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/include/asm/hw_irq.h 2013-08-23 09:10:22.673620044 -0500
@@ -160,7 +160,7 @@ static inline ia64_vector __ia64_irq_to_
static inline unsigned int
__ia64_local_vector_to_irq (ia64_vector vec)
{
- return __get_cpu_var(vector_irq)[vec];
+ return __this_cpu_read(vector_irq[vec]);
}
#endif

Index: linux/arch/ia64/include/asm/sn/nodepda.h
===================================================================
--- linux.orig/arch/ia64/include/asm/sn/nodepda.h 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/include/asm/sn/nodepda.h 2013-08-23 09:10:22.673620044 -0500
@@ -70,7 +70,7 @@ typedef struct nodepda_s nodepda_t;
*/

DECLARE_PER_CPU(struct nodepda_s *, __sn_nodepda);
-#define sn_nodepda (__get_cpu_var(__sn_nodepda))
+#define sn_nodepda __this_cpu_read(__sn_nodepda)
#define NODEPDA(cnodeid) (sn_nodepda->pernode_pdaindr[cnodeid])

/*
Index: linux/arch/ia64/include/asm/switch_to.h
===================================================================
--- linux.orig/arch/ia64/include/asm/switch_to.h 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/include/asm/switch_to.h 2013-08-23 09:10:22.673620044 -0500
@@ -32,7 +32,7 @@ extern void ia64_load_extra (struct task

#ifdef CONFIG_PERFMON
DECLARE_PER_CPU(unsigned long, pfm_syst_info);
-# define PERFMON_IS_SYSWIDE() (__get_cpu_var(pfm_syst_info) & 0x1)
+# define PERFMON_IS_SYSWIDE() (__this_cpu_read(pfm_syst_info) & 0x1)
#else
# define PERFMON_IS_SYSWIDE() (0)
#endif
Index: linux/arch/ia64/include/asm/sn/arch.h
===================================================================
--- linux.orig/arch/ia64/include/asm/sn/arch.h 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/include/asm/sn/arch.h 2013-08-23 09:10:22.673620044 -0500
@@ -57,7 +57,7 @@ struct sn_hub_info_s {
u16 nasid_bitmask;
};
DECLARE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
-#define sn_hub_info (&__get_cpu_var(__sn_hub_info))
+#define sn_hub_info this_cpu_ptr(&__sn_hub_info)
#define is_shub2() (sn_hub_info->shub2)
#define is_shub1() (sn_hub_info->shub2 == 0)

@@ -72,7 +72,7 @@ DECLARE_PER_CPU(struct sn_hub_info_s, __
* cpu.
*/
DECLARE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_COMPACT_NODES]);
-#define sn_cnodeid_to_nasid (&__get_cpu_var(__sn_cnodeid_to_nasid[0]))
+#define sn_cnodeid_to_nasid this_cpu_ptr(&__sn_cnodeid_to_nasid[0])


extern u8 sn_partition_id;
Index: linux/arch/ia64/include/asm/uv/uv_hub.h
===================================================================
--- linux.orig/arch/ia64/include/asm/uv/uv_hub.h 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/include/asm/uv/uv_hub.h 2013-08-23 09:10:22.673620044 -0500
@@ -108,7 +108,7 @@ struct uv_hub_info_s {
unsigned char n_val;
};
DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
-#define uv_hub_info (&__get_cpu_var(__uv_hub_info))
+#define uv_hub_info this_cpu_ptr(&__uv_hub_info)
#define uv_cpu_hub_info(cpu) (&per_cpu(__uv_hub_info, cpu))

/*
Index: linux/arch/ia64/kernel/traps.c
===================================================================
--- linux.orig/arch/ia64/kernel/traps.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/kernel/traps.c 2013-08-23 09:10:22.673620044 -0500
@@ -299,7 +299,7 @@ handle_fpu_swa (int fp_fault, struct pt_

if (!(current->thread.flags & IA64_THREAD_FPEMU_NOPRINT)) {
unsigned long count, current_jiffies = jiffies;
- struct fpu_swa_msg *cp = &__get_cpu_var(cpulast);
+ struct fpu_swa_msg *cp = this_cpu_ptr(&cpulast);

if (unlikely(current_jiffies > cp->time))
cp->count = 0;
Index: linux/arch/ia64/xen/time.c
===================================================================
--- linux.orig/arch/ia64/xen/time.c 2013-08-23 09:10:22.673620044 -0500
+++ linux/arch/ia64/xen/time.c 2013-08-23 09:10:22.673620044 -0500
@@ -68,7 +68,7 @@ static void get_runstate_snapshot(struct

BUG_ON(preemptible());

- state = &__get_cpu_var(xen_runstate);
+ state = this_cpu_ptr(&xen_runstate);

/*
* The runstate info is always updated by the hypervisor on

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