* [PATCH 4/9] percpu: cleanup percpu array definitions
[not found] <1245210060-24344-1-git-send-email-tj@kernel.org>
@ 2009-06-17 3:40 ` Tejun Heo
2009-06-17 16:57 ` Christoph Lameter
2009-06-17 3:40 ` [PATCH 5/9] percpu: clean up percpu variable definitions Tejun Heo
1 sibling, 1 reply; 5+ messages in thread
From: Tejun Heo @ 2009-06-17 3:40 UTC (permalink / raw)
To: linux-kernel, x86, linux-arch, mingo, kyle, cl, Jesper.Nilsson,
benh, paulmck
Cc: Tejun Heo, Tony Luck, Thomas Gleixner, Jeremy Fitzhardinge,
linux-mm, David S. Miller
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>
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>
---
arch/ia64/kernel/smp.c | 2 +-
arch/ia64/sn/kernel/setup.c | 2 +-
arch/powerpc/mm/stab.c | 2 +-
arch/powerpc/platforms/ps3/smp.c | 2 +-
arch/x86/kernel/cpu/cpu_debug.c | 4 ++--
arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 2 +-
drivers/xen/events.c | 4 ++--
mm/quicklist.c | 2 +-
mm/slub.c | 4 ++--
net/ipv4/syncookies.c | 2 +-
net/ipv6/syncookies.c | 2 +-
11 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 5230eaa..3e0840c 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -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
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index e456f06..ece1bf9 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -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);
diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c
index 98cd1dc..6e9b69c 100644
--- a/arch/powerpc/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
@@ -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.
diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c
index f6e04bc..51ffde4 100644
--- a/arch/powerpc/platforms/ps3/smp.c
+++ b/arch/powerpc/platforms/ps3/smp.c
@@ -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)
{
diff --git a/arch/x86/kernel/cpu/cpu_debug.c b/arch/x86/kernel/cpu/cpu_debug.c
index 6b2a52d..dca325c 100644
--- a/arch/x86/kernel/cpu/cpu_debug.c
+++ b/arch/x86/kernel/cpu/cpu_debug.c
@@ -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);
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index ddae216..bd2a2fa 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -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] = {
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 891d2e9..ab581fa 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -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 {
diff --git a/mm/quicklist.c b/mm/quicklist.c
index e66d07d..6eedf7e 100644
--- a/mm/quicklist.c
+++ b/mm/quicklist.c
@@ -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
diff --git a/mm/slub.c b/mm/slub.c
index 30354bf..0933b91 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1998,8 +1998,8 @@ 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);
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index cd2b97f..84d90f2 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -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)
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 8c25139..23d0d6d 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -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)
--
1.6.0.2
--
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH 5/9] percpu: clean up percpu variable definitions
[not found] <1245210060-24344-1-git-send-email-tj@kernel.org>
2009-06-17 3:40 ` [PATCH 4/9] percpu: cleanup percpu array definitions Tejun Heo
@ 2009-06-17 3:40 ` Tejun Heo
2009-06-17 17:00 ` Christoph Lameter
2009-06-18 7:36 ` [PATCH 5/9 UPDATED] " Tejun Heo
1 sibling, 2 replies; 5+ messages in thread
From: Tejun Heo @ 2009-06-17 3:40 UTC (permalink / raw)
To: linux-kernel, x86, linux-arch, mingo, kyle, cl, Jesper.Nilsson,
benh, paulmck
Cc: Tejun Heo, Ivan Kokshaysky, Jens Axboe, Dave Jones,
Jeremy Fitzhardinge, linux-mm, David S. Miller
Percpu variable definition is about to be updated such that no static
declaration is allowed. Update percpu variable definitions
accoringly.
* as,cfq: rename ioc_count uniquely
* cpufreq: rename cpu_dbs_info uniquely
* xen: move nesting_count out of xen_evtchn_do_upcall() and rename it
* mm: move ratelimits out of balance_dirty_pages_ratelimited_nr() and
rename it
* ipv4,6: rename cookie_scratch uniquely
While at it, make cris:use DECLARE_PER_CPU() instead of extern
volatile DEFINE_PER_CPU() for declaration.
[ Impact: percpu usage cleanups, no duplicate static percpu var names ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: David S. Miller <davem@davemloft.net>
---
arch/cris/include/asm/mmu_context.h | 2 +-
block/as-iosched.c | 10 +++++-----
block/cfq-iosched.c | 10 +++++-----
drivers/cpufreq/cpufreq_conservative.c | 12 ++++++------
drivers/cpufreq/cpufreq_ondemand.c | 15 ++++++++-------
drivers/xen/events.c | 9 +++++----
mm/page-writeback.c | 5 +++--
net/ipv4/syncookies.c | 5 +++--
net/ipv6/syncookies.c | 5 +++--
9 files changed, 39 insertions(+), 34 deletions(-)
diff --git a/arch/cris/include/asm/mmu_context.h b/arch/cris/include/asm/mmu_context.h
index 476cd9e..1d45fd6 100644
--- a/arch/cris/include/asm/mmu_context.h
+++ b/arch/cris/include/asm/mmu_context.h
@@ -18,7 +18,7 @@ extern void switch_mm(struct mm_struct *prev, struct mm_struct *next,
*/
/* defined in arch/cris/mm/fault.c */
-extern DEFINE_PER_CPU(pgd_t *, current_pgd);
+DECLARE_PER_CPU(pgd_t *, current_pgd);
static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
diff --git a/block/as-iosched.c b/block/as-iosched.c
index 7a12cf6..ce8ba57 100644
--- a/block/as-iosched.c
+++ b/block/as-iosched.c
@@ -146,7 +146,7 @@ enum arq_state {
#define RQ_STATE(rq) ((enum arq_state)(rq)->elevator_private2)
#define RQ_SET_STATE(rq, state) ((rq)->elevator_private2 = (void *) state)
-static DEFINE_PER_CPU(unsigned long, ioc_count);
+static DEFINE_PER_CPU(unsigned long, as_ioc_count);
static struct completion *ioc_gone;
static DEFINE_SPINLOCK(ioc_gone_lock);
@@ -161,7 +161,7 @@ static void as_antic_stop(struct as_data *ad);
static void free_as_io_context(struct as_io_context *aic)
{
kfree(aic);
- elv_ioc_count_dec(ioc_count);
+ elv_ioc_count_dec(as_ioc_count);
if (ioc_gone) {
/*
* AS scheduler is exiting, grab exit lock and check
@@ -169,7 +169,7 @@ static void free_as_io_context(struct as_io_context *aic)
* complete ioc_gone and set it back to NULL.
*/
spin_lock(&ioc_gone_lock);
- if (ioc_gone && !elv_ioc_count_read(ioc_count)) {
+ if (ioc_gone && !elv_ioc_count_read(as_ioc_count)) {
complete(ioc_gone);
ioc_gone = NULL;
}
@@ -211,7 +211,7 @@ static struct as_io_context *alloc_as_io_context(void)
ret->seek_total = 0;
ret->seek_samples = 0;
ret->seek_mean = 0;
- elv_ioc_count_inc(ioc_count);
+ elv_ioc_count_inc(as_ioc_count);
}
return ret;
@@ -1507,7 +1507,7 @@ static void __exit as_exit(void)
ioc_gone = &all_gone;
/* ioc_gone's update must be visible before reading ioc_count */
smp_wmb();
- if (elv_ioc_count_read(ioc_count))
+ if (elv_ioc_count_read(as_ioc_count))
wait_for_completion(&all_gone);
synchronize_rcu();
}
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 833ec18..0f1cc7d 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -48,7 +48,7 @@ static int cfq_slice_idle = HZ / 125;
static struct kmem_cache *cfq_pool;
static struct kmem_cache *cfq_ioc_pool;
-static DEFINE_PER_CPU(unsigned long, ioc_count);
+static DEFINE_PER_CPU(unsigned long, cfq_ioc_count);
static struct completion *ioc_gone;
static DEFINE_SPINLOCK(ioc_gone_lock);
@@ -1422,7 +1422,7 @@ static void cfq_cic_free_rcu(struct rcu_head *head)
cic = container_of(head, struct cfq_io_context, rcu_head);
kmem_cache_free(cfq_ioc_pool, cic);
- elv_ioc_count_dec(ioc_count);
+ elv_ioc_count_dec(cfq_ioc_count);
if (ioc_gone) {
/*
@@ -1431,7 +1431,7 @@ static void cfq_cic_free_rcu(struct rcu_head *head)
* complete ioc_gone and set it back to NULL
*/
spin_lock(&ioc_gone_lock);
- if (ioc_gone && !elv_ioc_count_read(ioc_count)) {
+ if (ioc_gone && !elv_ioc_count_read(cfq_ioc_count)) {
complete(ioc_gone);
ioc_gone = NULL;
}
@@ -1557,7 +1557,7 @@ cfq_alloc_io_context(struct cfq_data *cfqd, gfp_t gfp_mask)
INIT_HLIST_NODE(&cic->cic_list);
cic->dtor = cfq_free_io_context;
cic->exit = cfq_exit_io_context;
- elv_ioc_count_inc(ioc_count);
+ elv_ioc_count_inc(cfq_ioc_count);
}
return cic;
@@ -2658,7 +2658,7 @@ static void __exit cfq_exit(void)
* this also protects us from entering cfq_slab_kill() with
* pending RCU callbacks
*/
- if (elv_ioc_count_read(ioc_count))
+ if (elv_ioc_count_read(cfq_ioc_count))
wait_for_completion(&all_gone);
cfq_slab_kill();
}
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 7a74d17..8191d04 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -80,7 +80,7 @@ struct cpu_dbs_info_s {
int cpu;
unsigned int enable:1;
};
-static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
+static DEFINE_PER_CPU(struct cpu_dbs_info_s, cs_cpu_dbs_info);
static unsigned int dbs_enable; /* number of CPUs using this policy */
@@ -153,7 +153,7 @@ dbs_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
void *data)
{
struct cpufreq_freqs *freq = data;
- struct cpu_dbs_info_s *this_dbs_info = &per_cpu(cpu_dbs_info,
+ struct cpu_dbs_info_s *this_dbs_info = &per_cpu(cs_cpu_dbs_info,
freq->cpu);
struct cpufreq_policy *policy;
@@ -326,7 +326,7 @@ static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
/* we need to re-evaluate prev_cpu_idle */
for_each_online_cpu(j) {
struct cpu_dbs_info_s *dbs_info;
- dbs_info = &per_cpu(cpu_dbs_info, j);
+ dbs_info = &per_cpu(cs_cpu_dbs_info, j);
dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
&dbs_info->prev_cpu_wall);
if (dbs_tuners_ins.ignore_nice)
@@ -416,7 +416,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
cputime64_t cur_wall_time, cur_idle_time;
unsigned int idle_time, wall_time;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
+ j_dbs_info = &per_cpu(cs_cpu_dbs_info, j);
cur_idle_time = get_cpu_idle_time(j, &cur_wall_time);
@@ -556,7 +556,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
unsigned int j;
int rc;
- this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
+ this_dbs_info = &per_cpu(cs_cpu_dbs_info, cpu);
switch (event) {
case CPUFREQ_GOV_START:
@@ -576,7 +576,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
for_each_cpu(j, policy->cpus) {
struct cpu_dbs_info_s *j_dbs_info;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
+ j_dbs_info = &per_cpu(cs_cpu_dbs_info, j);
j_dbs_info->cur_policy = policy;
j_dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index e741c33..04de476 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -87,7 +87,7 @@ struct cpu_dbs_info_s {
unsigned int enable:1,
sample_type:1;
};
-static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
+static DEFINE_PER_CPU(struct cpu_dbs_info_s, od_cpu_dbs_info);
static unsigned int dbs_enable; /* number of CPUs using this policy */
@@ -165,7 +165,8 @@ static unsigned int powersave_bias_target(struct cpufreq_policy *policy,
unsigned int freq_hi, freq_lo;
unsigned int index = 0;
unsigned int jiffies_total, jiffies_hi, jiffies_lo;
- struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, policy->cpu);
+ struct cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info,
+ policy->cpu);
if (!dbs_info->freq_table) {
dbs_info->freq_lo = 0;
@@ -210,7 +211,7 @@ static void ondemand_powersave_bias_init(void)
{
int i;
for_each_online_cpu(i) {
- struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, i);
+ struct cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info, i);
dbs_info->freq_table = cpufreq_frequency_get_table(i);
dbs_info->freq_lo = 0;
}
@@ -325,7 +326,7 @@ static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
/* we need to re-evaluate prev_cpu_idle */
for_each_online_cpu(j) {
struct cpu_dbs_info_s *dbs_info;
- dbs_info = &per_cpu(cpu_dbs_info, j);
+ dbs_info = &per_cpu(od_cpu_dbs_info, j);
dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
&dbs_info->prev_cpu_wall);
if (dbs_tuners_ins.ignore_nice)
@@ -419,7 +420,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
unsigned int load, load_freq;
int freq_avg;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
+ j_dbs_info = &per_cpu(od_cpu_dbs_info, j);
cur_idle_time = get_cpu_idle_time(j, &cur_wall_time);
@@ -576,7 +577,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
unsigned int j;
int rc;
- this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
+ this_dbs_info = &per_cpu(od_cpu_dbs_info, cpu);
switch (event) {
case CPUFREQ_GOV_START:
@@ -598,7 +599,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
for_each_cpu(j, policy->cpus) {
struct cpu_dbs_info_s *j_dbs_info;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
+ j_dbs_info = &per_cpu(od_cpu_dbs_info, j);
j_dbs_info->cur_policy = policy;
j_dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index ab581fa..7d2987e 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -602,6 +602,8 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
+static DEFINE_PER_CPU(unsigned, xed_nesting_count);
+
/*
* Search the CPUs pending events bitmasks. For each one found, map
* the event number to an irq, and feed it into do_IRQ() for
@@ -617,7 +619,6 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
struct pt_regs *old_regs = set_irq_regs(regs);
struct shared_info *s = HYPERVISOR_shared_info;
struct vcpu_info *vcpu_info = __get_cpu_var(xen_vcpu);
- static DEFINE_PER_CPU(unsigned, nesting_count);
unsigned count;
exit_idle();
@@ -628,7 +629,7 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
vcpu_info->evtchn_upcall_pending = 0;
- if (__get_cpu_var(nesting_count)++)
+ if (__get_cpu_var(xed_nesting_count)++)
goto out;
#ifndef CONFIG_X86 /* No need for a barrier -- XCHG is a barrier on x86. */
@@ -653,8 +654,8 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
BUG_ON(!irqs_disabled());
- count = __get_cpu_var(nesting_count);
- __get_cpu_var(nesting_count) = 0;
+ count = __get_cpu_var(xed_nesting_count);
+ __get_cpu_var(xed_nesting_count) = 0;
} while(count != 1);
out:
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index bb553c3..0e0c9de 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -606,6 +606,8 @@ void set_page_dirty_balance(struct page *page, int page_mkwrite)
}
}
+static DEFINE_PER_CPU(unsigned long, bdp_ratelimits) = 0;
+
/**
* balance_dirty_pages_ratelimited_nr - balance dirty memory state
* @mapping: address_space which was dirtied
@@ -623,7 +625,6 @@ void set_page_dirty_balance(struct page *page, int page_mkwrite)
void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
unsigned long nr_pages_dirtied)
{
- static DEFINE_PER_CPU(unsigned long, ratelimits) = 0;
unsigned long ratelimit;
unsigned long *p;
@@ -636,7 +637,7 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
* tasks in balance_dirty_pages(). Period.
*/
preempt_disable();
- p = &__get_cpu_var(ratelimits);
+ p = &__get_cpu_var(bdp_ratelimits);
*p += nr_pages_dirtied;
if (unlikely(*p >= ratelimit)) {
*p = 0;
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 84d90f2..a6e0e07 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -37,12 +37,13 @@ __initcall(init_syncookies);
#define COOKIEBITS 24 /* Upper bits store count */
#define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
-static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], cookie_scratch);
+static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
+ ipv4_cookie_scratch);
static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport,
u32 count, int c)
{
- __u32 *tmp = __get_cpu_var(cookie_scratch);
+ __u32 *tmp = __get_cpu_var(ipv4_cookie_scratch);
memcpy(tmp + 4, syncookie_secret[c], sizeof(syncookie_secret[c]));
tmp[0] = (__force u32)saddr;
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 23d0d6d..6b6ae91 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -74,12 +74,13 @@ static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
return child;
}
-static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], cookie_scratch);
+static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
+ ipv6_cookie_scratch);
static u32 cookie_hash(struct in6_addr *saddr, struct in6_addr *daddr,
__be16 sport, __be16 dport, u32 count, int c)
{
- __u32 *tmp = __get_cpu_var(cookie_scratch);
+ __u32 *tmp = __get_cpu_var(ipv6_cookie_scratch);
/*
* we have 320 bits of information to hash, copy in the remaining
--
1.6.0.2
--
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 4/9] percpu: cleanup percpu array definitions
2009-06-17 3:40 ` [PATCH 4/9] percpu: cleanup percpu array definitions Tejun Heo
@ 2009-06-17 16:57 ` Christoph Lameter
0 siblings, 0 replies; 5+ messages in thread
From: Christoph Lameter @ 2009-06-17 16:57 UTC (permalink / raw)
To: Tejun Heo
Cc: linux-kernel, x86, linux-arch, mingo, kyle, Jesper.Nilsson, benh,
paulmck, Tony Luck, Thomas Gleixner, Jeremy Fitzhardinge,
linux-mm, David S. Miller
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
--
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see: http://www.linux-mm.org/ .
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 5/9] percpu: clean up percpu variable definitions
2009-06-17 3:40 ` [PATCH 5/9] percpu: clean up percpu variable definitions Tejun Heo
@ 2009-06-17 17:00 ` Christoph Lameter
2009-06-18 7:36 ` [PATCH 5/9 UPDATED] " Tejun Heo
1 sibling, 0 replies; 5+ messages in thread
From: Christoph Lameter @ 2009-06-17 17:00 UTC (permalink / raw)
To: Tejun Heo
Cc: linux-kernel, x86, linux-arch, mingo, kyle, Jesper.Nilsson, benh,
paulmck, Ivan Kokshaysky, Jens Axboe, Dave Jones,
Jeremy Fitzhardinge, linux-mm, David S. Miller
The wrapping fixes could have been put in the earlier patch.
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
--
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH 5/9 UPDATED] percpu: clean up percpu variable definitions
2009-06-17 3:40 ` [PATCH 5/9] percpu: clean up percpu variable definitions Tejun Heo
2009-06-17 17:00 ` Christoph Lameter
@ 2009-06-18 7:36 ` Tejun Heo
1 sibling, 0 replies; 5+ messages in thread
From: Tejun Heo @ 2009-06-18 7:36 UTC (permalink / raw)
To: linux-kernel, x86, linux-arch, mingo, kyle, cl, Jesper.Nilsson,
benh, paulmck
Cc: Ivan Kokshaysky, Jens Axboe, Dave Jones, Jeremy Fitzhardinge,
linux-mm, David S. Miller, Peter Zijlstra, Li Zefan,
Catalin Marinas
Percpu variable definition is about to be updated such that no static
declaration is allowed. Update percpu variable definitions
accordingly.
* as,cfq: rename ioc_count uniquely
* cpufreq: rename cpu_dbs_info uniquely
* xen: move nesting_count out of xen_evtchn_do_upcall() and rename it
* mm: move ratelimits out of balance_dirty_pages_ratelimited_nr() and
rename it
* ipv4,6: rename cookie_scratch uniquely
* x86 pref_counter: rename prev_left to pmc_prev_left, irq_entry to
pmc_irq_entry and nmi_entry to pmc_nmi_entry
* perf_counter: rename disable_count to perf_disable_count
* ftrace: rename test_event_disable to ftrace_test_event_disable
* kmemleak: rename test_pointer to kmemleak_test_pointer
[ Impact: percpu usage cleanups, no duplicate static percpu var names ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
---
Updates for newly added percpu variables in perf_counter, kmemleak and
ftrace added. Note that these changes were accidentally put in the
next patch in the original posting. The end result remains the same.
arch/x86/kernel/cpu/perf_counter.c | 14 +++++++-------
block/as-iosched.c | 10 +++++-----
block/cfq-iosched.c | 10 +++++-----
drivers/cpufreq/cpufreq_conservative.c | 12 ++++++------
drivers/cpufreq/cpufreq_ondemand.c | 15 ++++++++-------
drivers/xen/events.c | 9 +++++----
kernel/perf_counter.c | 6 +++---
kernel/trace/trace_events.c | 6 +++---
mm/kmemleak-test.c | 6 +++---
mm/page-writeback.c | 5 +++--
net/ipv4/syncookies.c | 5 +++--
net/ipv6/syncookies.c | 5 +++--
12 files changed, 54 insertions(+), 49 deletions(-)
Index: work/block/as-iosched.c
===================================================================
--- work.orig/block/as-iosched.c
+++ work/block/as-iosched.c
@@ -146,7 +146,7 @@ enum arq_state {
#define RQ_STATE(rq) ((enum arq_state)(rq)->elevator_private2)
#define RQ_SET_STATE(rq, state) ((rq)->elevator_private2 = (void *) state)
-static DEFINE_PER_CPU(unsigned long, ioc_count);
+static DEFINE_PER_CPU(unsigned long, as_ioc_count);
static struct completion *ioc_gone;
static DEFINE_SPINLOCK(ioc_gone_lock);
@@ -161,7 +161,7 @@ static void as_antic_stop(struct as_data
static void free_as_io_context(struct as_io_context *aic)
{
kfree(aic);
- elv_ioc_count_dec(ioc_count);
+ elv_ioc_count_dec(as_ioc_count);
if (ioc_gone) {
/*
* AS scheduler is exiting, grab exit lock and check
@@ -169,7 +169,7 @@ static void free_as_io_context(struct as
* complete ioc_gone and set it back to NULL.
*/
spin_lock(&ioc_gone_lock);
- if (ioc_gone && !elv_ioc_count_read(ioc_count)) {
+ if (ioc_gone && !elv_ioc_count_read(as_ioc_count)) {
complete(ioc_gone);
ioc_gone = NULL;
}
@@ -211,7 +211,7 @@ static struct as_io_context *alloc_as_io
ret->seek_total = 0;
ret->seek_samples = 0;
ret->seek_mean = 0;
- elv_ioc_count_inc(ioc_count);
+ elv_ioc_count_inc(as_ioc_count);
}
return ret;
@@ -1507,7 +1507,7 @@ static void __exit as_exit(void)
ioc_gone = &all_gone;
/* ioc_gone's update must be visible before reading ioc_count */
smp_wmb();
- if (elv_ioc_count_read(ioc_count))
+ if (elv_ioc_count_read(as_ioc_count))
wait_for_completion(&all_gone);
synchronize_rcu();
}
Index: work/block/cfq-iosched.c
===================================================================
--- work.orig/block/cfq-iosched.c
+++ work/block/cfq-iosched.c
@@ -48,7 +48,7 @@ static int cfq_slice_idle = HZ / 125;
static struct kmem_cache *cfq_pool;
static struct kmem_cache *cfq_ioc_pool;
-static DEFINE_PER_CPU(unsigned long, ioc_count);
+static DEFINE_PER_CPU(unsigned long, cfq_ioc_count);
static struct completion *ioc_gone;
static DEFINE_SPINLOCK(ioc_gone_lock);
@@ -1422,7 +1422,7 @@ static void cfq_cic_free_rcu(struct rcu_
cic = container_of(head, struct cfq_io_context, rcu_head);
kmem_cache_free(cfq_ioc_pool, cic);
- elv_ioc_count_dec(ioc_count);
+ elv_ioc_count_dec(cfq_ioc_count);
if (ioc_gone) {
/*
@@ -1431,7 +1431,7 @@ static void cfq_cic_free_rcu(struct rcu_
* complete ioc_gone and set it back to NULL
*/
spin_lock(&ioc_gone_lock);
- if (ioc_gone && !elv_ioc_count_read(ioc_count)) {
+ if (ioc_gone && !elv_ioc_count_read(cfq_ioc_count)) {
complete(ioc_gone);
ioc_gone = NULL;
}
@@ -1557,7 +1557,7 @@ cfq_alloc_io_context(struct cfq_data *cf
INIT_HLIST_NODE(&cic->cic_list);
cic->dtor = cfq_free_io_context;
cic->exit = cfq_exit_io_context;
- elv_ioc_count_inc(ioc_count);
+ elv_ioc_count_inc(cfq_ioc_count);
}
return cic;
@@ -2658,7 +2658,7 @@ static void __exit cfq_exit(void)
* this also protects us from entering cfq_slab_kill() with
* pending RCU callbacks
*/
- if (elv_ioc_count_read(ioc_count))
+ if (elv_ioc_count_read(cfq_ioc_count))
wait_for_completion(&all_gone);
cfq_slab_kill();
}
Index: work/drivers/cpufreq/cpufreq_conservative.c
===================================================================
--- work.orig/drivers/cpufreq/cpufreq_conservative.c
+++ work/drivers/cpufreq/cpufreq_conservative.c
@@ -80,7 +80,7 @@ struct cpu_dbs_info_s {
int cpu;
unsigned int enable:1;
};
-static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
+static DEFINE_PER_CPU(struct cpu_dbs_info_s, cs_cpu_dbs_info);
static unsigned int dbs_enable; /* number of CPUs using this policy */
@@ -153,7 +153,7 @@ dbs_cpufreq_notifier(struct notifier_blo
void *data)
{
struct cpufreq_freqs *freq = data;
- struct cpu_dbs_info_s *this_dbs_info = &per_cpu(cpu_dbs_info,
+ struct cpu_dbs_info_s *this_dbs_info = &per_cpu(cs_cpu_dbs_info,
freq->cpu);
struct cpufreq_policy *policy;
@@ -326,7 +326,7 @@ static ssize_t store_ignore_nice_load(st
/* we need to re-evaluate prev_cpu_idle */
for_each_online_cpu(j) {
struct cpu_dbs_info_s *dbs_info;
- dbs_info = &per_cpu(cpu_dbs_info, j);
+ dbs_info = &per_cpu(cs_cpu_dbs_info, j);
dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
&dbs_info->prev_cpu_wall);
if (dbs_tuners_ins.ignore_nice)
@@ -416,7 +416,7 @@ static void dbs_check_cpu(struct cpu_dbs
cputime64_t cur_wall_time, cur_idle_time;
unsigned int idle_time, wall_time;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
+ j_dbs_info = &per_cpu(cs_cpu_dbs_info, j);
cur_idle_time = get_cpu_idle_time(j, &cur_wall_time);
@@ -556,7 +556,7 @@ static int cpufreq_governor_dbs(struct c
unsigned int j;
int rc;
- this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
+ this_dbs_info = &per_cpu(cs_cpu_dbs_info, cpu);
switch (event) {
case CPUFREQ_GOV_START:
@@ -576,7 +576,7 @@ static int cpufreq_governor_dbs(struct c
for_each_cpu(j, policy->cpus) {
struct cpu_dbs_info_s *j_dbs_info;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
+ j_dbs_info = &per_cpu(cs_cpu_dbs_info, j);
j_dbs_info->cur_policy = policy;
j_dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
Index: work/drivers/cpufreq/cpufreq_ondemand.c
===================================================================
--- work.orig/drivers/cpufreq/cpufreq_ondemand.c
+++ work/drivers/cpufreq/cpufreq_ondemand.c
@@ -87,7 +87,7 @@ struct cpu_dbs_info_s {
unsigned int enable:1,
sample_type:1;
};
-static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
+static DEFINE_PER_CPU(struct cpu_dbs_info_s, od_cpu_dbs_info);
static unsigned int dbs_enable; /* number of CPUs using this policy */
@@ -165,7 +165,8 @@ static unsigned int powersave_bias_targe
unsigned int freq_hi, freq_lo;
unsigned int index = 0;
unsigned int jiffies_total, jiffies_hi, jiffies_lo;
- struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, policy->cpu);
+ struct cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info,
+ policy->cpu);
if (!dbs_info->freq_table) {
dbs_info->freq_lo = 0;
@@ -210,7 +211,7 @@ static void ondemand_powersave_bias_init
{
int i;
for_each_online_cpu(i) {
- struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, i);
+ struct cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info, i);
dbs_info->freq_table = cpufreq_frequency_get_table(i);
dbs_info->freq_lo = 0;
}
@@ -325,7 +326,7 @@ static ssize_t store_ignore_nice_load(st
/* we need to re-evaluate prev_cpu_idle */
for_each_online_cpu(j) {
struct cpu_dbs_info_s *dbs_info;
- dbs_info = &per_cpu(cpu_dbs_info, j);
+ dbs_info = &per_cpu(od_cpu_dbs_info, j);
dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
&dbs_info->prev_cpu_wall);
if (dbs_tuners_ins.ignore_nice)
@@ -419,7 +420,7 @@ static void dbs_check_cpu(struct cpu_dbs
unsigned int load, load_freq;
int freq_avg;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
+ j_dbs_info = &per_cpu(od_cpu_dbs_info, j);
cur_idle_time = get_cpu_idle_time(j, &cur_wall_time);
@@ -576,7 +577,7 @@ static int cpufreq_governor_dbs(struct c
unsigned int j;
int rc;
- this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
+ this_dbs_info = &per_cpu(od_cpu_dbs_info, cpu);
switch (event) {
case CPUFREQ_GOV_START:
@@ -598,7 +599,7 @@ static int cpufreq_governor_dbs(struct c
for_each_cpu(j, policy->cpus) {
struct cpu_dbs_info_s *j_dbs_info;
- j_dbs_info = &per_cpu(cpu_dbs_info, j);
+ j_dbs_info = &per_cpu(od_cpu_dbs_info, j);
j_dbs_info->cur_policy = policy;
j_dbs_info->prev_cpu_idle = get_cpu_idle_time(j,
Index: work/drivers/xen/events.c
===================================================================
--- work.orig/drivers/xen/events.c
+++ work/drivers/xen/events.c
@@ -602,6 +602,8 @@ irqreturn_t xen_debug_interrupt(int irq,
return IRQ_HANDLED;
}
+static DEFINE_PER_CPU(unsigned, xed_nesting_count);
+
/*
* Search the CPUs pending events bitmasks. For each one found, map
* the event number to an irq, and feed it into do_IRQ() for
@@ -617,7 +619,6 @@ void xen_evtchn_do_upcall(struct pt_regs
struct pt_regs *old_regs = set_irq_regs(regs);
struct shared_info *s = HYPERVISOR_shared_info;
struct vcpu_info *vcpu_info = __get_cpu_var(xen_vcpu);
- static DEFINE_PER_CPU(unsigned, nesting_count);
unsigned count;
exit_idle();
@@ -628,7 +629,7 @@ void xen_evtchn_do_upcall(struct pt_regs
vcpu_info->evtchn_upcall_pending = 0;
- if (__get_cpu_var(nesting_count)++)
+ if (__get_cpu_var(xed_nesting_count)++)
goto out;
#ifndef CONFIG_X86 /* No need for a barrier -- XCHG is a barrier on x86. */
@@ -653,8 +654,8 @@ void xen_evtchn_do_upcall(struct pt_regs
BUG_ON(!irqs_disabled());
- count = __get_cpu_var(nesting_count);
- __get_cpu_var(nesting_count) = 0;
+ count = __get_cpu_var(xed_nesting_count);
+ __get_cpu_var(xed_nesting_count) = 0;
} while(count != 1);
out:
Index: work/mm/page-writeback.c
===================================================================
--- work.orig/mm/page-writeback.c
+++ work/mm/page-writeback.c
@@ -606,6 +606,8 @@ void set_page_dirty_balance(struct page
}
}
+static DEFINE_PER_CPU(unsigned long, bdp_ratelimits) = 0;
+
/**
* balance_dirty_pages_ratelimited_nr - balance dirty memory state
* @mapping: address_space which was dirtied
@@ -623,7 +625,6 @@ void set_page_dirty_balance(struct page
void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
unsigned long nr_pages_dirtied)
{
- static DEFINE_PER_CPU(unsigned long, ratelimits) = 0;
unsigned long ratelimit;
unsigned long *p;
@@ -636,7 +637,7 @@ void balance_dirty_pages_ratelimited_nr(
* tasks in balance_dirty_pages(). Period.
*/
preempt_disable();
- p = &__get_cpu_var(ratelimits);
+ p = &__get_cpu_var(bdp_ratelimits);
*p += nr_pages_dirtied;
if (unlikely(*p >= ratelimit)) {
*p = 0;
Index: work/net/ipv4/syncookies.c
===================================================================
--- work.orig/net/ipv4/syncookies.c
+++ work/net/ipv4/syncookies.c
@@ -37,12 +37,13 @@ __initcall(init_syncookies);
#define COOKIEBITS 24 /* Upper bits store count */
#define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
-static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], cookie_scratch);
+static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
+ ipv4_cookie_scratch);
static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport,
u32 count, int c)
{
- __u32 *tmp = __get_cpu_var(cookie_scratch);
+ __u32 *tmp = __get_cpu_var(ipv4_cookie_scratch);
memcpy(tmp + 4, syncookie_secret[c], sizeof(syncookie_secret[c]));
tmp[0] = (__force u32)saddr;
Index: work/net/ipv6/syncookies.c
===================================================================
--- work.orig/net/ipv6/syncookies.c
+++ work/net/ipv6/syncookies.c
@@ -74,12 +74,13 @@ static inline struct sock *get_cookie_so
return child;
}
-static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], cookie_scratch);
+static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
+ ipv6_cookie_scratch);
static u32 cookie_hash(struct in6_addr *saddr, struct in6_addr *daddr,
__be16 sport, __be16 dport, u32 count, int c)
{
- __u32 *tmp = __get_cpu_var(cookie_scratch);
+ __u32 *tmp = __get_cpu_var(ipv6_cookie_scratch);
/*
* we have 320 bits of information to hash, copy in the remaining
Index: work/arch/x86/kernel/cpu/perf_counter.c
===================================================================
--- work.orig/arch/x86/kernel/cpu/perf_counter.c
+++ work/arch/x86/kernel/cpu/perf_counter.c
@@ -861,7 +861,7 @@ amd_pmu_disable_counter(struct hw_perf_c
x86_pmu_disable_counter(hwc, idx);
}
-static DEFINE_PER_CPU(u64, prev_left[X86_PMC_IDX_MAX]);
+static DEFINE_PER_CPU(u64, pmc_prev_left[X86_PMC_IDX_MAX]);
/*
* Set the next IRQ period, based on the hwc->period_left value.
@@ -900,7 +900,7 @@ x86_perf_counter_set_period(struct perf_
if (left > x86_pmu.max_period)
left = x86_pmu.max_period;
- per_cpu(prev_left[idx], smp_processor_id()) = left;
+ per_cpu(pmc_prev_left[idx], smp_processor_id()) = left;
/*
* The hw counter starts counting from this counter offset,
@@ -1088,7 +1088,7 @@ void perf_counter_print_debug(void)
rdmsrl(x86_pmu.eventsel + idx, pmc_ctrl);
rdmsrl(x86_pmu.perfctr + idx, pmc_count);
- prev_left = per_cpu(prev_left[idx], cpu);
+ prev_left = per_cpu(pmc_prev_left[idx], cpu);
pr_info("CPU#%d: gen-PMC%d ctrl: %016llx\n",
cpu, idx, pmc_ctrl);
@@ -1560,8 +1560,8 @@ void callchain_store(struct perf_callcha
entry->ip[entry->nr++] = ip;
}
-static DEFINE_PER_CPU(struct perf_callchain_entry, irq_entry);
-static DEFINE_PER_CPU(struct perf_callchain_entry, nmi_entry);
+static DEFINE_PER_CPU(struct perf_callchain_entry, pmc_irq_entry);
+static DEFINE_PER_CPU(struct perf_callchain_entry, pmc_nmi_entry);
static void
@@ -1696,9 +1696,9 @@ struct perf_callchain_entry *perf_callch
struct perf_callchain_entry *entry;
if (in_nmi())
- entry = &__get_cpu_var(nmi_entry);
+ entry = &__get_cpu_var(pmc_nmi_entry);
else
- entry = &__get_cpu_var(irq_entry);
+ entry = &__get_cpu_var(pmc_irq_entry);
entry->nr = 0;
entry->hv = 0;
Index: work/kernel/perf_counter.c
===================================================================
--- work.orig/kernel/perf_counter.c
+++ work/kernel/perf_counter.c
@@ -98,16 +98,16 @@ hw_perf_group_sched_in(struct perf_count
void __weak perf_counter_print_debug(void) { }
-static DEFINE_PER_CPU(int, disable_count);
+static DEFINE_PER_CPU(int, perf_disable_count);
void __perf_disable(void)
{
- __get_cpu_var(disable_count)++;
+ __get_cpu_var(perf_disable_count)++;
}
bool __perf_enable(void)
{
- return !--__get_cpu_var(disable_count);
+ return !--__get_cpu_var(perf_disable_count);
}
void perf_disable(void)
Index: work/kernel/trace/trace_events.c
===================================================================
--- work.orig/kernel/trace/trace_events.c
+++ work/kernel/trace/trace_events.c
@@ -1318,7 +1318,7 @@ static __init void event_trace_self_test
#ifdef CONFIG_FUNCTION_TRACER
-static DEFINE_PER_CPU(atomic_t, test_event_disable);
+static DEFINE_PER_CPU(atomic_t, ftrace_test_event_disable);
static void
function_test_events_call(unsigned long ip, unsigned long parent_ip)
@@ -1334,7 +1334,7 @@ function_test_events_call(unsigned long
pc = preempt_count();
resched = ftrace_preempt_disable();
cpu = raw_smp_processor_id();
- disabled = atomic_inc_return(&per_cpu(test_event_disable, cpu));
+ disabled = atomic_inc_return(&per_cpu(ftrace_test_event_disable, cpu));
if (disabled != 1)
goto out;
@@ -1352,7 +1352,7 @@ function_test_events_call(unsigned long
trace_nowake_buffer_unlock_commit(event, flags, pc);
out:
- atomic_dec(&per_cpu(test_event_disable, cpu));
+ atomic_dec(&per_cpu(ftrace_test_event_disable, cpu));
ftrace_preempt_enable(resched);
}
Index: work/mm/kmemleak-test.c
===================================================================
--- work.orig/mm/kmemleak-test.c
+++ work/mm/kmemleak-test.c
@@ -36,7 +36,7 @@ struct test_node {
};
static LIST_HEAD(test_list);
-static DEFINE_PER_CPU(void *, test_pointer);
+static DEFINE_PER_CPU(void *, kmemleak_test_pointer);
/*
* Some very simple testing. This function needs to be extended for
@@ -86,9 +86,9 @@ static int __init kmemleak_test_init(voi
}
for_each_possible_cpu(i) {
- per_cpu(test_pointer, i) = kmalloc(129, GFP_KERNEL);
+ per_cpu(kmemleak_test_pointer, i) = kmalloc(129, GFP_KERNEL);
pr_info("kmemleak: kmalloc(129) = %p\n",
- per_cpu(test_pointer, i));
+ per_cpu(kmemleak_test_pointer, i));
}
return 0;
--
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^ permalink raw reply [flat|nested] 5+ messages in thread
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Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <1245210060-24344-1-git-send-email-tj@kernel.org>
2009-06-17 3:40 ` [PATCH 4/9] percpu: cleanup percpu array definitions Tejun Heo
2009-06-17 16:57 ` Christoph Lameter
2009-06-17 3:40 ` [PATCH 5/9] percpu: clean up percpu variable definitions Tejun Heo
2009-06-17 17:00 ` Christoph Lameter
2009-06-18 7:36 ` [PATCH 5/9 UPDATED] " Tejun Heo
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