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percpu: cleanup percpu array definitions

Browse source 
Currently, the following three different ways to define percpu arrays
are in use.

1. DEFINE_PER_CPU(elem_type[array_len], array_name);
2. DEFINE_PER_CPU(elem_type, array_name[array_len]);
3. DEFINE_PER_CPU(elem_type, array_name)[array_len];

Unify to #1 which correctly separates the roles of the two parameters
and thus allows more flexibility in the way percpu variables are
defined.

[ Impact: cleanup ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: linux-mm@kvack.org
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tejun Heo 2009-06-24 15:13:45 +09:00
parent fe87f94f34
commit 204fba4aa3
12 changed files with 15 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/ia64/kernel/smp.c
View file

@ -58,7 +58,7 @@ static struct local_tlb_flush_counts {
unsigned int count;
} __attribute__((__aligned__(32))) local_tlb_flush_counts[NR_CPUS];
static DEFINE_PER_CPU(unsigned short, shadow_flush_counts[NR_CPUS]) ____cacheline_aligned;
static DEFINE_PER_CPU(unsigned short [NR_CPUS], shadow_flush_counts) ____cacheline_aligned;
#define IPI_CALL_FUNC 0
#define IPI_CPU_STOP 1

2
arch/ia64/sn/kernel/setup.c
View file

@ -71,7 +71,7 @@ EXPORT_SYMBOL(sn_rtc_cycles_per_second);
DEFINE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
EXPORT_PER_CPU_SYMBOL(__sn_hub_info);
DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_COMPACT_NODES]);
DEFINE_PER_CPU(short [MAX_COMPACT_NODES], __sn_cnodeid_to_nasid);
EXPORT_PER_CPU_SYMBOL(__sn_cnodeid_to_nasid);
DEFINE_PER_CPU(struct nodepda_s *, __sn_nodepda);

2
arch/powerpc/mm/stab.c
View file

@ -31,7 +31,7 @@ struct stab_entry {
#define NR_STAB_CACHE_ENTRIES 8
static DEFINE_PER_CPU(long, stab_cache_ptr);
static DEFINE_PER_CPU(long, stab_cache[NR_STAB_CACHE_ENTRIES]);
static DEFINE_PER_CPU(long [NR_STAB_CACHE_ENTRIES], stab_cache);
/*
* Create a segment table entry for the given esid/vsid pair.

2
arch/powerpc/platforms/ps3/smp.c
View file

@ -37,7 +37,7 @@
*/
#define MSG_COUNT 4
static DEFINE_PER_CPU(unsigned int, ps3_ipi_virqs[MSG_COUNT]);
static DEFINE_PER_CPU(unsigned int [MSG_COUNT], ps3_ipi_virqs);
static void do_message_pass(int target, int msg)
{

4
arch/x86/kernel/cpu/cpu_debug.c
View file

@ -30,8 +30,8 @@
#include <asm/apic.h>
#include <asm/desc.h>
static DEFINE_PER_CPU(struct cpu_cpuX_base, cpu_arr[CPU_REG_ALL_BIT]);
static DEFINE_PER_CPU(struct cpu_private *, priv_arr[MAX_CPU_FILES]);
static DEFINE_PER_CPU(struct cpu_cpuX_base [CPU_REG_ALL_BIT], cpu_arr);
static DEFINE_PER_CPU(struct cpu_private * [MAX_CPU_FILES], priv_arr);
static DEFINE_PER_CPU(int, cpu_priv_count);
static DEFINE_MUTEX(cpu_debug_lock);

2
arch/x86/kernel/cpu/mcheck/mce_amd.c
View file

@ -69,7 +69,7 @@ struct threshold_bank {
struct threshold_block *blocks;
cpumask_var_t cpus;
};
static DEFINE_PER_CPU(struct threshold_bank *, threshold_banks[NR_BANKS]);
static DEFINE_PER_CPU(struct threshold_bank * [NR_BANKS], threshold_banks);
#ifdef CONFIG_SMP
static unsigned char shared_bank[NR_BANKS] = {

2
arch/x86/kernel/cpu/perf_counter.c
View file

@ -862,7 +862,7 @@ amd_pmu_disable_counter(struct hw_perf_counter *hwc, int idx)
x86_pmu_disable_counter(hwc, idx);
}
static DEFINE_PER_CPU(u64, prev_left[X86_PMC_IDX_MAX]);
static DEFINE_PER_CPU(u64 [X86_PMC_IDX_MAX], prev_left);
/*
* Set the next IRQ period, based on the hwc->period_left value.

4
drivers/xen/events.c
View file

@ -47,10 +47,10 @@
static DEFINE_SPINLOCK(irq_mapping_update_lock);
/* IRQ <-> VIRQ mapping. */
static DEFINE_PER_CPU(int, virq_to_irq[NR_VIRQS]) = {[0 ... NR_VIRQS-1] = -1};
static DEFINE_PER_CPU(int [NR_VIRQS], virq_to_irq) = {[0 ... NR_VIRQS-1] = -1};
/* IRQ <-> IPI mapping */
static DEFINE_PER_CPU(int, ipi_to_irq[XEN_NR_IPIS]) = {[0 ... XEN_NR_IPIS-1] = -1};
static DEFINE_PER_CPU(int [XEN_NR_IPIS], ipi_to_irq) = {[0 ... XEN_NR_IPIS-1] = -1};
/* Interrupt types. */
enum xen_irq_type {

2
mm/quicklist.c
View file

@ -19,7 +19,7 @@
#include <linux/module.h>
#include <linux/quicklist.h>
DEFINE_PER_CPU(struct quicklist, quicklist)[CONFIG_NR_QUICK];
DEFINE_PER_CPU(struct quicklist [CONFIG_NR_QUICK], quicklist);
#define FRACTION_OF_NODE_MEM 16

4
mm/slub.c
View file

@ -2086,8 +2086,8 @@ init_kmem_cache_node(struct kmem_cache_node *n, struct kmem_cache *s)
*/
#define NR_KMEM_CACHE_CPU 100
static DEFINE_PER_CPU(struct kmem_cache_cpu,
kmem_cache_cpu)[NR_KMEM_CACHE_CPU];
static DEFINE_PER_CPU(struct kmem_cache_cpu [NR_KMEM_CACHE_CPU],
kmem_cache_cpu);
static DEFINE_PER_CPU(struct kmem_cache_cpu *, kmem_cache_cpu_free);
static DECLARE_BITMAP(kmem_cach_cpu_free_init_once, CONFIG_NR_CPUS);

2
net/ipv4/syncookies.c
View file

@ -37,7 +37,7 @@ __initcall(init_syncookies);
#define COOKIEBITS 24 /* Upper bits store count */
#define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
static DEFINE_PER_CPU(__u32, cookie_scratch)[16 + 5 + SHA_WORKSPACE_WORDS];
static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], cookie_scratch);
static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport,
u32 count, int c)

2
net/ipv6/syncookies.c
View file

@ -74,7 +74,7 @@ static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
return child;
}
static DEFINE_PER_CPU(__u32, cookie_scratch)[16 + 5 + SHA_WORKSPACE_WORDS];
static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], cookie_scratch);
static u32 cookie_hash(struct in6_addr *saddr, struct in6_addr *daddr,
__be16 sport, __be16 dport, u32 count, int c)