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authorTejun Heo <tj@kernel.org>2009-06-24 15:13:48 +0900
committerTejun Heo <tj@kernel.org>2009-06-24 15:13:48 +0900
commit245b2e70eabd797932adb263a65da0bab3711753 (patch)
tree30f0b790dadd2b70bf06e534abcf66a76e97b05a /block
parentb9bf3121af348d9255f1c917830fe8c2df52efcb (diff)
downloadop-kernel-dev-245b2e70eabd797932adb263a65da0bab3711753.zip
op-kernel-dev-245b2e70eabd797932adb263a65da0bab3711753.tar.gz
percpu: clean up percpu variable definitions
Percpu variable definition is about to be updated such that all percpu symbols including the static ones must be unique. 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 perf_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 * mce: rename next_interval to mce_next_interval [ 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> Cc: Andi Kleen <andi@firstfloor.org>
Diffstat (limited to 'block')
-rw-r--r--block/as-iosched.c10
-rw-r--r--block/cfq-iosched.c10
2 files changed, 10 insertions, 10 deletions
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();
}
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